10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

__________________________

Form 10-K 

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(Mark One)
☒	ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2021

or 

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from            to            .

Commission file number 1-14315

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Cornerstone Building Brands, Inc.

(Exact name of registrant as specified in its charter)

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Delaware	76-0127701
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

5020 Weston Parkway	Suite 400	Cary	NC	27513
(Address of principal executive offices)				(Zip Code)

Registrant’s telephone number, including area code: (866) 419-0042

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Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class	Trading Symbol	Name of Each Exchange on Which Registered
Common Stock, $0.01 par value	CNR	New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act: None

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Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.Yes o No ý

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.Yes o No ý

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.Yes ý No o

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).Yes ý No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and

“emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	ý	Accelerated filer	☐
Non-accelerated filer	¨ (Do not check if a smaller reporting company)	Smaller reporting company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).Yes ☐ No ý

The aggregate market value of the voting and non-voting common stock held by non-affiliates of the registrant on July 3, 2021 was $966,794,672, which aggregate market value was calculated using the closing sales price reported by the New York Stock Exchange as of the last business day of the registrant’s most recently completed second fiscal quarter.

The number of shares of common stock of the registrant outstanding on February 22, 2022 was 127,001,002.

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DOCUMENTS INCORPORATED BY REFERENCE

Certain information required by Part III of this Annual Report is incorporated by reference from the registrant’s definitive proxy statement for its 2022 annual meeting of stockholders to be filed with the Securities and Exchange Commission within 120 days of December 31, 2021.

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TABLE OF CONTENTS

PART I		3
Item 1.	Business	3
Item 1A.	Risk Factors	13
Item 1B.	Unresolved Staff Comments	26
Item 2.	Properties	26
Item 3.	Legal Proceedings	27
Item 4.	Mine Safety Disclosures	28
PART II		29
Item 5.	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	29
Item 6.	Reserved	30
Item 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	31
Item 7A.	Quantitative and Qualitative Disclosures About Market Risk	46
Item 8.	Financial Statements and Supplementary Data	49
Item 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	105
Item 9A.	Controls and Procedures	105
Item 9B.	Other Information	105
PART III		106
Item 10.	Directors, Executive Officers and Corporate Governance	106
Item 11.	Executive Compensation	106
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	106
Item 13.	Certain Relationships and Related Transactions, and Director Independence	106
Item 14.	Principal Accounting Fees and Services	106
Part IV		107
Item 15.	Exhibits, Financial Statement Schedules	107
Item 16.	Form 10-K Summary	110

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FORWARD LOOKING STATEMENTS

This Annual Report includes statements concerning our expectations, beliefs, plans, objectives, goals, strategies, future events or performance and underlying assumptions and other statements that are not historical facts. These statements are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Actual results may differ materially from those expressed or implied by these statements. In some cases, our forward-looking statements can be identified by the words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “forecast,” “goal,” “intend,” “may,” “objective,” “plan,” “potential,” “predict,” “projection,” “should,” “will,” “target” or other similar words. We have based our forward-looking statements on our management’s beliefs and assumptions based on information available to our management at the time the statements are made. We caution you that assumptions, beliefs, expectations, intentions and projections about future events may and often do vary materially from actual results. Therefore, we cannot assure you that actual results will not differ materially from those expressed or implied by our forward-looking statements. Accordingly, investors are cautioned not to place undue reliance on any forward-looking statements. Although we believe that the expectations reflected in the forward-looking statements are reasonable, these expectations and the related statements are subject to risks, uncertainties and other factors that could cause actual results to differ materially from those projected. These risks, uncertainties and other factors include, but are not limited to:

•the outcome of negotiations with and any definitive agreement entered into with respect to the recent offer received from Clayton, Dubilier & Rice, LLC (“CD&R”) to purchase all of the shares of the Company’s common stock that CD&R does not already own and whether any transaction will be consummated in connection therewith;

•industry cyclicality;

•seasonality of the business and adverse weather conditions;

•challenging economic conditions affecting the residential, non-residential and repair and remodeling construction industry and markets;

•commodity price volatility and/or limited availability of raw materials, including polyvinyl chloride (“PVC”) resin, glass, aluminum, and steel due to supply chain disruptions;

•our ability to identify and develop relationships with a sufficient number of qualified suppliers to mitigate risk in the event a significant supplier experiences a significant production or supply chain interruption;

•the increasing difficulty of consumers and builders in obtaining credit or financing;

•increase in the macroeconomic inflationary environment;

•ability to successfully achieve price increases to offset cost increases;

•ability to successfully implement operational efficiency initiatives, including automation;

•ability to successfully integrate our acquired businesses;

•ability to attract and retain employees, including through various initiatives and actions;

•volatility in the United States (“U.S.”) and international economies and in the credit markets;

•the severity, duration and spread of the COVID-19 pandemic, as well as actions that may be taken by the Company or governmental authorities to contain the COVID-19 pandemic or to treat its impact;

•an impairment of our goodwill and/or intangible assets;

•our ability to successfully develop new products or improve existing products;

•our ability to retain and replace key personnel;

•enforcement and obsolescence of our intellectual property rights;

•costs related to compliance with, violations of or liabilities under environmental, health and safety laws;

•competitive activity and pricing pressure in our industry;

•our ability to make strategic acquisitions accretive to earnings and dispositions at favorable prices and terms;

•our ability to fund acquisitions using available liquidity;

•our ability to carry out our restructuring plans and to fully realize the expected cost savings;

•global climate change, including legal, regulatory or market responses thereto;

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•breaches of our information system security measures;

•damage to our computer infrastructure and software systems;

•necessary maintenance or replacements to our enterprise resource planning technologies;

•potential personal injury, property damage or product liability claims or other types of litigation;

•compliance with certain laws related to our international business operations;

•increases in labor costs, potential labor disputes, union organizing activity and work stoppages at our facilities or the facilities of our suppliers;

•significant changes in factors and assumptions used to measure certain of our defined benefit plan obligations and the effect of actual investment returns on pension assets;

•ability to compete effectively against competitors with substitutable products;

•additional costs from new regulations which relate to the utilization or manufacturing of our products or services, including changes in building codes and standards;

•our ability to realize the anticipated benefits of acquisitions and dispositions and to use the proceeds from dispositions;

•volatility of the Company’s stock price;

•substantial governance and other rights held by the Investors;

•the effect on our common stock price caused by transactions engaged in by the Investors, our directors or executives;

•our substantial indebtedness and our ability to incur substantially more indebtedness;

•limitations that our debt agreements place on our ability to engage in certain business and financial transactions;

•our ability to obtain financing on acceptable terms;

•downgrades of our credit ratings;

•the effect of increased interest rates on our ability to service our debt; and

•other risks detailed under the caption “Risk Factors” in Part I, Item 1A of this report.

A forward-looking statement may include a statement of the assumptions or bases underlying the forward-looking statement. We believe that we have chosen these assumptions or bases in good faith and that they are reasonable. However, we caution you that assumed facts or bases almost always vary from actual results, and the differences between assumed facts or bases and actual results can be material, depending on the circumstances. When considering forward-looking statements, you should keep in mind the risk factors and other cautionary statements in this report, including those described under the caption “Risk Factors” in Item 1A of this report. We expressly disclaim any obligations to release publicly any updates or revisions to these forward-looking statements to reflect any changes in our expectations unless the securities laws require us to do so.

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PART I

Item 1. Business.

Recent Developments

On February 13, 2022, funds affiliated with Clayton Dubilier & Rice, LLC (“CD&R”) submitted a non-binding proposal to acquire all of the Company’s outstanding shares of common stock that CD&R does not already own for a purchase price of $24.65 in cash per share (the “CD&R Offer”).

The CD&R Offer stated that any transaction would be subject to (i) approval by a special committee (“Special Committee”) of our independent directors; and (ii) a vote in favor of the transaction by a majority of the voting power represented by the shares of our common stock owned by stockholders not affiliated with CD&R.

The board of directors of the Company (the “Board”) previously formed a Special Committee to evaluate and consider any potential or actual proposal from CD&R and any other alternative proposals or other strategic alternatives that may be available to the Company.

The CD&R Offer provides that CD&R reserves the right to withdraw or modify the CD&R Offer at any time and no legally binding obligation with respect to any transaction will exist unless and until mutually acceptable definitive documentation is executed and delivered by us and CD&R. There can be no assurance that the transaction proposed by CD&R or any related transaction will be completed or as to the terms of any such potential transaction, including with respect to pricing or timing.

Overview

Cornerstone Building Brands, Inc. (together with its subsidiaries, unless the context requires otherwise, the “Company,” “Cornerstone,” “we,” “us” or “our”) became a newly formed company on November 16, 2018 as the result of a merger (the “Merger”) between NCI Building Systems, Inc. (“NCI”) and Ply Gem Parent, LLC (“Ply Gem”) wherein Ply Gem was merged into NCI, incorporated in the State of Delaware, and 58,709,067 shares of NCI common stock, par value of $0.01 per share, were issued to the holders of all the equity interests in Ply Gem. See “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations—Overview—Merger with Ply Gem.”

We are the largest manufacturer of exterior building products in North America. The Company serves residential and commercial customers across the new construction and repair & remodel markets. We believe our business model emphasizes a commitment to our customers and operational excellence, supported by strong sourcing, vertical integration and engineering & design capabilities across an extensive national manufacturing footprint, and leveraging robust distribution channel access. Substantially all of the Company’s operations and customers are in North America.

We believe we have one of the broadest product offerings with the most well-regarded brand portfolio and value-added services in our industry. We have established a leading market position in the majority of our product categories within the North American exterior building products market, including vinyl windows, vinyl siding, stone veneer installation, metal accessories, metal roofing/wall systems, and a top-three position in engineered metal building systems. Our expansive product offering and brand portfolio enable us to better serve our customers across the multiple end markets in which we operate, and we have worked to position ourselves as a one-stop-shop solution for exterior building products.

We have an extensive coast-to-coast network of manufacturing, distribution, and branch office facilities throughout North America. We operate 107 manufacturing facilities across the U.S. and Canada, supported by a network of 52 distribution and branch office facilities. Our manufacturing processes are vertically integrated, which we believe provides cost and competitive advantages. We continually invest in our manufacturing and distribution operations to drive efficiencies, enhance safety and improve our cost structure, including the introduction of various automation technologies.

We are mindful of the harmful effects of global climate change and the contributions to climate change from manufacturing operations and the end-use of building construction products. We have made and continue to make progress on our work related to environmental, social and governance (“ESG”) matters.

We believe our vertically integrated, cost-advantaged manufacturing platform, along with our national scale, expansive product offerings, leading brands, multi-channel distribution network servicing long-tenured customers and dedicated employees, create significant competitive advantages relative to other exterior building products manufacturers.

Our principal offices are located at 5020 Weston Parkway, Suite 400, Cary, North Carolina 27513, and our telephone number is (866) 419-0042.

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We file annual, quarterly and current reports and other information with the Securities and Exchange Commission (the “SEC”). Our annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K, along with any amendments to those reports, are available free of charge at our corporate website at http://www.cornerstonebuildingbrands.com as soon as practicable after such material is electronically filed with, or furnished to the SEC. In addition, our website includes other items related to corporate governance matters, including our corporate governance guidelines, charters of various committees of our board of directors (the “Board of Directors”) and our code of conduct (the “Code of Conduct”) applicable to our employees, officers and directors. You may obtain copies of these documents, free of charge, from our corporate website. However, the information on our website is not incorporated by reference into this Form 10-K.

Operating Segments

We design, engineer, manufacture, install residential products and market external building products through three operating segments: Windows, Siding, and Commercial. Our segments are exposed to the construction industry, whose net sales have historically fluctuated based on seasonality, with increases in the second and third fiscal quarters when construction activity is the most robust, which generally results in higher sales and profits in these periods. Working capital requirements have historically been greatest during the first half of our fiscal year mainly due to the timing of the buildup of inventory to support the heavier construction season. Fiscal years 2021 and 2020 had different working capital requirements as a result of the COVID-19 pandemic and its variants (collectively, the “COVID-19 pandemic”).

Windows Segment

In our Windows segment, we offer a broad line of windows and doors at multiple price tiers for residential new construction and residential repair and remodel end markets primarily in the United States and Canada. Our principal products include vinyl, aluminum, wood and aluminum clad-wood windows and patio doors, as well as steel, wood, and fiberglass entry doors. We frequently introduce new products to our product portfolio, enabling further penetration of new distribution channels and customers. We intend to complement this organic growth with continued strategic acquisitions in this segment, and we intend to drive margin improvement through focused price discipline and improved product mix, as well as continuous improvement and increased automation in our manufacturing operations.

The breadth of our product offering and our multiple price-point strategy enable us to target multiple distribution channels (wholesale and specialty distributors, retailers and manufactured housing), end user markets (residential new construction and residential repair and remodel) and customer types (entry level, move-up and high-end). Our collection of leading brands in this segment includes: Ply Gem, Simonton, Atrium, American Craftsman, Silver Line, Cascade Windows, Prime Windows, Great Lakes Window, and North Star.

We sell our windows and doors through multiple distribution channels. Our residential new construction product lines are sold across a diversified customer base, which includes independent building products dealers, regional/national lumberyards and homebuilders. Our residential repair and remodel window products are primarily sold through independent home improvement dealers, one-step distributors and retail home centers. Dealers typically market directly to homeowners or contractors in connection with remodeling requirements, while distributors focus primarily on selling to local independent retailers. We have long-tenured customer relationships across the channels we serve in this segment, and we have been a key supplier to a majority of the nation’s largest homebuilders for over 10 years.

In Canada, sales for residential new construction are predominantly made on a direct basis to homebuilders and contractors, while residential repair and remodel construction products are primarily sold not only through high-end independent dealers and regional lumberyards, but also directly to contractors and consumers through our supply-and-install services. We distribute Ply Gem Canada products through our distribution centers across Western Canada. In Ontario, we manufacture and distribute North Star branded windows primarily for the premium-priced tier of the residential repair and remodel market.

Siding Segment

In our Siding segment, we offer a broad suite of exterior cladding, fencing and stone products, other accessories products at multiple price tiers for the residential new construction and residential repair and remodel end markets, and stone installation that is sold directly to builders and general contractors. Our principal products include vinyl siding and skirting, composite siding, steel siding, vinyl and aluminum soffit, aluminum trim coil, aluminum gutter coil, fabricated aluminum gutter protection, PVC trim and moldings, window and door trim, injection molded designer accents such as shakes, shingles, shutters and vents, vinyl fencing and railing, and stone veneer.

We intend to drive organic growth in this segment through focused product innovation in siding and new product development in attractive adjacent product lines. We have successfully expanded our siding product offering to include innovative alternatives to our existing portfolio, including a luxury vinyl siding alternative and stone veneer. In stone veneer,

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we have increased market share through our differentiated business model and national footprint with a strong network of architects, general contractors and builders.

We believe we are currently the largest manufacturer of vinyl siding in North America. We believe we are the second largest provider of stone veneer in North America, and the only turnkey installation provider of stone solutions on a national basis. Our collection of leading brands in this segment includes the following:

Siding & Accessories	Cellular PVC Trim	Vinyl Fencing and Railing	Stone Veneer	Gutter Protection
Ply Gem	Ply Gem	Ply Gem	Ply Gem	Leaf Relief
Mastic			Environmental Stoneworks	Snap Tight
Georgia-Pacific (licensed)			ClipStone	Leaf Smart
Mitten			Canyon Stone	Leaf Logic
Variform

We sell our siding, fencing and stone products through multiple distribution channels, including wholesale and specialty distributors, retail home centers, manufactured housing producers, homebuilders and contractors. In the specialty channel, we have an extensive network of independent dealers and distributors serving contractors and homebuilders nationwide. We believe we are well-positioned in this channel with over 11,000 distribution locations and partnerships with many of the largest and most successful distributors in the industry. In Canada, our complete offering of vinyl siding, accessories, trim, and moldings and attached stone veneers, along with in-house manufactured and third-party sourced complementary products, are distributed nationwide, primarily through our distribution centers and to retail home centers, lumberyards and contractors.

Commercial Segment

In our Commercial segment, we design, engineer, manufacture and distribute extensive lines of metal products for the low-rise non-residential construction market under multiple brand names and through a nationwide network of manufacturing plants and distribution centers. Low-rise non-residential, which we generally define as building applications of up to five stories, typically lags housing cycles by 18 to 24 months.

Our principal products in this segment include:

Metal Building Systems – Metal building systems consist of engineered structural members and panels that are fabricated and roll-formed in a factory. These systems are custom designed and engineered to meet project requirements and then shipped to a construction site complete and ready for assembly with no additional field welding required. Engineered building systems manufacturers design an integrated system that meets applicable building code and designated end use requirements. These systems consist of primary structural framing, secondary structural members (purlins and girts) and metal roof and wall systems or conventional wall materials manufactured by others, such as masonry and concrete tilt-up panels.

Metal Roofing and Wall Systems – These products are used in new construction and in repair and retrofit applications for industrial, commercial, institutional, agricultural, rural, and residential uses. Metal components are used in a wide variety of construction applications, including purlins and girts, roofing, standing seam roofing, walls, doors, trim and other parts of traditional buildings, as well as in architectural applications and engineered building systems.

Coil Coatings – As one of the largest coil coaters in the country, Metal Coaters specializes in the toll processing of customer-owned light gauge metal to deliver coil coating solutions throughout the United States. Metal Prep is one of the largest providers of pre-painted hot rolled steel in the United States and provides heavy gauge coil coating solutions to the construction industry.

We believe we offer a number of advantages over traditional construction alternatives, including shorter construction time, more efficient use of materials, lower construction costs, greater ease of expansion and lower maintenance costs. Our Commercial segment also provides metal coil coating services for low-rise non-residential construction applications, servicing both internal and external customers. We sell our products for both new construction and repair and remodel applications across a broad range of markets and customer solutions, including distribution & warehouse facilities, manufacturing & industrial facilities, as well as automotive, aviation, agricultural, healthcare, educational and retail facilities, among others.

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We believe there is a meaningful opportunity to drive growth in this segment through select strategic acquisitions. We intend to drive margin improvement through focused price discipline and improved product mix, as well as continuous improvement initiatives and increased automation in our manufacturing operations.

We believe we maintain leading positions across all of our key product categories in this segment and we believe that our brands, many of which have been in use for several decades, are well-recognized by our customers and industry associations. Our collection of leading brands in this segment includes the following:

Metal Building Systems	Components	Metal Roofing	Coil Coatings
Metallic Building Systems	MBCI	Union Corrugating Company	Metal Coaters
Ceco Building Systems	American Building Components	Reed’s Metals	Metal Prep
Star Building Systems	Metal Depots
Heritage Building Systems
Robertson Building Systems

Sources and Availability of Raw Materials

The raw materials used in each of our segments are primarily commodities. Specifically, we use PVC resin, glass and aluminum in our residential products and steel in our non-residential products. The availability, quality, and costs of many of these commodities have fluctuated, and may continue to fluctuate, over time and are primarily sourced in North America. Generally, we have been able to pass price increases onto our customers. The results of operations can be impacted by a delay between the time of a raw material cost increase and our price capture.

Raw materials are generally available from numerous sources, and the number of suppliers is adequate to support production. The Company is not dependent on any single source of supply except for aluminum, which is sourced from a single supplier.

Competition

We are the largest manufacturer of exterior building products in North America and have established a leading market position for many of our core product categories including: vinyl windows; vinyl siding; metal accessories; metal roofing and wall systems; stone veneer, as the only turnkey installation provider of stone solutions on a national basis; and a leading position in engineered metal building systems.

We compete with a number of other domestic manufacturers. Our vinyl siding competitors include CertainTeed, Alside, Westlake Royal Building Products and smaller regional competitors. Our aluminum accessories competitors include Rollex, Euramax, Gentek and other smaller regional competitors. Our vinyl fencing and railing competitors including U.S. Fence, Homeland, Westech, Bufftech, and Azek. Our cellular PVC trim and moulding competitors include Azek, Inteplast, Kommerling (KOMA), Wolfpac (Versatex), Tapco (Kleer), CertainTeed and Westlake Royal Building Products. Our stone veneer competitors include Boral (Cultured Stone and Eldorado Stone), Coronado Stone and smaller regional competitors.

The window and patio door sector remains fragmented, comprised primarily of local and regional manufacturers with limited product offerings. The sector’s competitors in the United States include national brands, such as Jeld-Wen, Pella, MI Home Products and Andersen, and other regional brands, including Weathershield and others. Competitors in Canada include Jeld-Wen, All Weather, Durabuilt, Vinylbilt and numerous regional brands. We generally compete on service, product performance, product offering, sales and support. We believe all of our products are competitively priced and that we are one of the few manufacturers to serve all end markets and price points on a national basis.

We compete with a number of other manufacturers of metal components, metal coil coaters, and engineered building systems for the building industry, including Nucor, Bluescope, Mueller, Kingspan, and Central States. Many of these competitors operate on a regional basis. We have two primary nationwide competitors in the engineered building systems market and three primary nationwide competitors in the metal components market. However, the metal components market is more fragmented than the engineered building systems market.

We believe the diversity of our revenue base across geographies, end markets, channels, customers, products, and raw materials provides us with significant benefits. We operate a broad manufacturing and distribution platform of 159 facilities across North America, enabling us to serve customers across all 50 U.S. states and all 10 Canadian provinces, thereby limiting our dependence on any one specific geographic region. This integrated North American footprint also enables deeper relationships with large homebuilders and retail customers due to our ability to serve them on a nationwide basis. We are also diversified across residential new construction, residential repair and remodel and low-rise non-residential construction end markets. We employ a multichannel distribution strategy with a broad product portfolio serving thousands of customers

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across North America, including over 5,000 distribution partners, which serves to insulate our business model from any negative trends in any one particular channel, customer or product. The breadth of diversification across our business, from what we sell, to where we sell and to whom we sell, enables significant resiliency in our business model by insulating us from any negative trends or fluctuations in any single market segment, distribution channel, customer segment or product category.

Intellectual Property

We possess a wide array of intellectual property rights across our segments, including patents, pending patent applications, trademarks, tradenames, licenses, proprietary technology and know-how and other proprietary rights. In connection with the marketing of our products, we generally obtain trademark protection for our brand names. Depending on the jurisdiction, trademarks are valid as long as they are in use and/or their registrations are properly maintained and they have not become generic. Registrations of trademarks can generally be renewed indefinitely as long as the trademarks are in use. While we do not believe our segments are dependent on any one of our trademarks, we believe that our trademarks are important to the development and conduct of our business as well as the marketing of our products.

We license the Georgia-Pacific trademark for our Georgia-Pacific private label vinyl siding products sold through BlueLinx. We vigorously protect all of our intellectual property rights.

Backlog

Our Windows and Siding segments had a backlog of approximately $539.4 million and $172.8 million, respectively, at December 31, 2021. We expect to fill 100% of this backlog during 2022. Within our Commercial segment, the total backlog of orders for our products, primarily engineered building systems, was $666.9 million at December 31, 2021. We anticipate that approximately 24% of the backlog within the Commercial segment will extend beyond one year. Job orders included in backlog are generally cancelable by customers at any time for any reason; however, cancellation charges may be assessed. Occasionally, orders in the backlog are not completed and shipped for reasons that include changes in customer requirements and the inability of customers to obtain necessary financing or zoning variances.

Business Strategy

We are relentlessly committed to our customers and to creating great and sustainable building solutions that enable communities to grow and thrive. By focusing on operational excellence every day, we create a platform for future growth and invest in market-leading residential and commercial building brands. We play an essential role in our communities where people live, work and play to enable those communities to grow and thrive.

We have developed and continue to implement a well-defined business strategy focused on several primary elements:

Profitable Growth. The Company intends to expand into new and existing markets by leveraging its customer relationships and full portfolio of leading products. We believe that our customers look to the Company for quality products, dependable service and the national footprint required for large homebuilders and retail customers. We participate in the large exterior building products market and have established leading market positions in many of our core product categories. Given our broad market participation, our growth strategy is differentiated by being focused and targeted on market segments exhibiting favorable characteristics, industry positioning and growth outlook.

We believe we have a meaningful opportunity for organic growth through product line extension and new product development with innovation being a key pillar of our organic growth strategy. We also believe we have an opportunity to drive cross-selling of our products to deepen penetration, drive growth and maximize profitability across customer channels.

Using a highly collaborative selling approach, the Company intends to grow in attractive market sectors, emphasizing those spaces that are highly fragmented, demand high service and value the reliability and efficiency offered by the Company’s products.

In addition to driving organic growth, we believe that we have a meaningful opportunity to grow through acquisitions, in a manner that is both prudent and profitable.

Operational Excellence. Cornerstone Building Brands operates with a relentless drive for exceptional results and a passion for superior execution. The Cornerstone Production System (CPS) drives how we improve execution effectiveness and efficiency to deliver margin expansion across our business. Additionally, the Company embraces a continuous improvement culture that is charged with increasing efficiency, optimizing costs, eliminating waste, encouraging organizational agility and building greater brand equity to fuel growth and establish Cornerstone Building Brands as a “supplier of choice” for our customers. This requires the Company’s ongoing commitment to attract, retain and develop the best talent, a paramount focus on the safety of our employees, and a commitment to diversity, equity, and inclusion. This is particularly evident during periods of high risk, such as the COVID-19 pandemic, where we continue to drive our culture of safety and employee care through rapid and effective implementation of safety guidelines throughout our business. This also includes making investments in automation while maximizing quality within our manufacturing facilities, transforming the

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way work gets done, and deploying capital in ways we believe will drive the greatest returns for our stockholders over the long-term.

The relentless focus on superior execution and our culture of continuous improvement create and protect our position as a cost-advantaged manufacturer with a highly variable and flexible cost structure and continue to favorably impact our financial results.

Disciplined Capital Allocation. The Company is intently focused on providing the highest returns for stockholders through its capital allocation framework, which includes: (1) investing in the Company’s core business through capital expenditures and other organic growth initiatives; (2) pursuing strategic acquisitions to broaden its portfolio and capabilities across the residential and commercial markets, with a focus on adjacent exterior building products and related services; and (3) targeting long-term net debt leverage of 2.0x to 2.5x. As part of this framework, the Company may also restructure, reposition or divest non-core product lines or assets.

We balance the investment in our core business by focusing on high-return initiatives supporting leading positions in large markets where we can build scale and drive efficiency as well as investments in growing markets that leverage operational and distribution channel capabilities. Our acquisition criteria are focused on opportunities that are highly strategic, synergistic and accretive, and we focus on well positioned businesses with strong financial returns. Overall, our capital allocation framework is balanced between a focus on debt repayment and opportunistic investment in high return initiatives.

Restructuring

We continue to execute on our plans to improve cost efficiency through the optimization of our combined manufacturing plant footprint and the elimination of certain fixed and indirect selling, general, and administrative (“SG&A”) costs. During the fiscal year ended December 31, 2021, we incurred restructuring charges of $26.2 million. See Note 6 — Restructuring in the notes to the consolidated financial statements for additional information.

Acquisitions & Divestitures

We have a history of making strategic acquisitions within our industry, and we regularly evaluate growth opportunities both through acquisitions and divestitures. We believe that there are opportunities for growth through acquisitions in the Windows, Siding and Commercial segments, and our goal is to supplement organic growth with opportunistic strategic acquisitions that meet our strict criteria.

Consistent with our growth strategy, we frequently engage in discussions with potential sellers regarding the possible purchase of businesses, assets, and operations that are strategic and complementary to our existing operations. Such acquisition efforts may involve participation by us in processes that have been made public, involve a number of potential buyers and are commonly referred to as “auction” processes, as well as situations in which we believe we are the only party or one of the very limited number of potential buyers in negotiations with the potential seller. These acquisition efforts often involve assets that, if acquired, would have a material effect on our financial condition and results of operations.

We also evaluate from time to time possible dispositions of assets or businesses when such assets or businesses are no longer core to our operations and do not fit into our long-term strategy.

Sustainability

Cornerstone Building Brands is uniquely positioned to make positive impacts on the communities we serve as we continue our journey to become North America’s premier manufacturer of exterior building solutions. To do so, we consider how we can increase manufacturing efficiencies, reduce environmental impacts, take care of our people, and uphold professional integrity and ethics in everything we do.

We recognize our responsibility as a provider of building solutions to communities across North America to incorporate sustainability into our products and business operations. Our business was formed by brands that have been making sustainability-focused decisions for several years, and now we are building on that foundation to challenge ourselves to do more. In 2021, we honored this commitment by establishing Board of Director oversight for ESG initiatives, hiring dedicated ESG leaders, creating an ESG Council, and completing an ESG materiality assessment. As we continue to develop an integrated strategy of financial growth and corporate responsibility for the future, we acknowledge that there is still much work to do as we take the next steps on our sustainability journey.

We believe that we can use our footprint for good and act as stewards of the environment. By addressing energy usage and operational environmental impacts, we seek to have a positive impact for both our stakeholders and the planet. We are committed to the well-being of our employees and the communities and customers we serve. We believe that our sustainable business practices provide positive social benefits to our people. Our highest priority is always the safety of our employees. We feel a responsibility not only to uphold product integrity and safety, but also to leverage innovation and stewardship to

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make products that meet the needs of our customers and promote sustainability. We are committed to conducting business at the highest levels of ethics every day.

Environmental, Health, and Safety Matters

Our operations are subject to various federal, state, local and foreign environmental, health and safety laws. Among other things, these laws regulate the emissions or discharge of materials into the environment; govern the use, storage, treatment, disposal and management of hazardous substances and wastes; protect the health and safety of our employees and the end-users of our products; regulate the materials used in our products; and impose liability for the costs of investigating and remediating (as well as other damages resulting from) present and past releases of hazardous substances. Violations of these laws or of any conditions contained in environmental permits could result in substantial fines or penalties, injunctive relief, consent orders, requirements to install pollution controls or other abatement equipment, or civil sanctions.

We could be held liable for costs to investigate, remediate, or otherwise address contamination at any real property we have ever owned, operated or used as a disposal site, or at other sites where we or predecessors may have released hazardous materials. We could incur fines, penalties or sanctions or be subject to third-party claims, including indemnification claims, for property damage, personal injury or otherwise as a result of violations of (or liabilities under) environmental, health and safety laws, or in connection with releases of hazardous or other materials.

Changes in or new interpretations of existing laws, regulations or enforcement policies, the discovery of previously unknown contamination or other environmental liabilities or obligations with respect to our products or business activities, or the imposition of new regulatory requirements for our facilities may lead to additional costs that could have an adverse effect on our business, financial condition or results of operations.

We do not believe that compliance with environmental, health and safety laws, including existing requirements to investigate and remediate contamination, will have a material adverse effect on our business, financial position, or manufacturing processes.

The following are representative environmental, health and safety requirements relating to our operations:

Air Emissions. Our operations are subject to the federal Clean Air Act and comparable state and foreign laws. These laws govern emissions of air pollutants from industrial stationary sources, such as our manufacturing facilities, and impose various permitting, air pollution control, emissions monitoring, recordkeeping and reporting requirements. Such laws may require us to obtain pre-approval for constructing or modifying our facilities in ways that have the potential to produce new or increased air emissions; obtain and comply with operating permits that limit air emissions or certain operating parameters, or employ best available control technologies to reduce or minimize emissions from our facilities. We may be required to purchase air pollution control equipment to comply with air emissions laws.

Greenhouse Gases. Efforts to mitigate the effects of global climate change has led to federal, state, and foreign legislative and regulatory efforts to limit greenhouse gas (“GHG”) emissions. While GHG regulations do not currently affect our facilities as they are insignificant sources, more stringent federal, regional, state, and foreign laws and regulations relating to global climate change and GHG emissions may be adopted. These laws and regulations could impact our facilities, raw material suppliers, the transportation and distribution of our products, and our customers’ businesses, which could reduce demand for our products or cause us to incur additional capital, operating or other costs. Until the timing, scope and extent of any future legislation or regulation becomes known, we cannot predict its effect on our business. In addition, global climate change may increase the frequency or intensity of extreme weather events, such as storms, floods, extreme temperatures and other events that could affect our facilities, raw material suppliers, the transportation and distribution of our products, and demand for our products.

Hazardous and Solid Industrial Waste. Our operations generate industrial solid wastes, including some hazardous wastes that are subject to the federal Resource Conservation and Recovery Act (“RCRA”) and comparable state and foreign laws. RCRA imposes requirements for the handling, storage, treatment, and disposal of hazardous waste. Industrial wastes we generate in our manufacturing processes, such as used chemicals, may be regulated as hazardous waste, although RCRA has provisions to exempt some of our wastes from classification as hazardous waste. However, our non-hazardous or exempted industrial wastes are still regulated under state law or the less stringent industrial solid waste requirements of RCRA.

RCRA Corrective Action Program. Certain facilities may be subject to the Corrective Action Program under the Solid Waste Disposal Act, as amended by RCRA, and the Hazardous and Solid Waste Amendments (“Corrective Action Program”). The Corrective Action Program is designed to ensure that certain facilities subject to RCRA have investigated and remediated releases of hazardous substances at their property.

MW Manufacturers Inc. (“MW”), a subsidiary of Ply Gem Industries, Inc., entered into a September 2011 Administrative Order on Consent with the U.S. Environmental Protection Agency (“EPA”) under the Corrective Action Program to address known releases of hazardous substances at MW’s Rocky Mount, Virginia property. A Phase I RCRA

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Facility Investigation (“RFI”) was submitted to the Virginia Department of Environmental Quality (“VDEQ”) in December 2015, and a Phase II RFI and the Human Health Risk Assessment and Baseline Ecological Risk Assessment were submitted in October 2018. A Limited Corrective Measures Study based on the investigations was submitted to the VDEQ for review and approval in September 2019. Upon completion of a 30-day public comment period, the VDEQ issued its Final Decision and Response to Comments approving a final remedy in May 2021. The final remedy consists of continuing groundwater monitoring until the VDEQ’s corrective actions have been met; and implementing and complying with land use restrictions and institutional controls imposed by an environmental covenant. We have recorded a liability of $4.5 million for this MW site, of which $1.0 million is in other current liabilities and $3.5 million is in other long-term liabilities on the Company’s consolidated balance sheet as of December 31, 2021.

CERCLA. The Comprehensive Environmental Response, Compensation and Liability Act (“CERCLA”, commonly known as Superfund), and comparable state and foreign laws impose liability, without regard to fault or the legality of the original conduct, on certain classes of persons responsible for releases of hazardous substances into the environment. These include the current and past owners or operators of sites where hazardous substances were released, and companies that disposed or arranged for disposal of hazardous substances at off-site locations such as landfills. CERCLA authorizes the EPA and, in certain cases, third parties to take actions in response to threats to the public health and welfare or the environment and to seek to recover remediation costs from the responsible parties.

We currently own or lease, and historically owned or leased, numerous properties that have extensive histories of industrial operations. Hazardous substances may have been released on, under or from these properties, or on, under or from other locations where hazardous wastes have been disposed. Some of these properties have been owned or operated by third parties who may have released hazardous substances for which we could have liability. We could be required to investigate or remediate contaminated property, perform remedial closure activities, or assess and remediate volatile chemical vapors migrating from soil or groundwater into overlying buildings. Our liability for investigating and remediating contamination could be joint and several and could include damages for impacts to natural resources.

The EPA is investigating groundwater contamination at a Superfund site in York, Nebraska, referred to as the PCE/TCE Northeast Contamination Site (“PCE/TCE Site”). Kroy Building Products, Inc. (“KBP”), a subsidiary of Ply Gem Industries, Inc., has been identified as a potentially responsible party at the site and has liability for investigation and remediation costs associated with the contamination. In May 2019, KBP and an unrelated respondent entered into an Administrative Settlement Agreement and Order on Consent with the EPA to conduct a Remedial Investigation/Feasibility Study (“RI/FS”) of the PCE/TCE Site. A final RI/FS Work Plan was approved by EPA in December 2019. Two phases of RI field sampling have been completed through May 2021 and a Monitoring Well Plan was approved by EPA in November 2021. We have recorded a liability of $4.4 million within other current liabilities on our consolidated balance sheet as of December 31, 2021. If necessary, we will adjust our remediation liability if the RI/FS scope materially changes or the EPA imposes additional investigative requirements. We may be able to recover a portion of costs incurred in connection with the PCE/TCE Site from other potentially responsible parties, though there is no assurance we would receive any funds.

Wastewater Discharges. Our operations are subject to the federal Water Pollution Control Act, also known as the Clean Water Act (“CWA”) and comparable state and foreign laws. These laws impose requirements and strict controls regarding the discharge of pollutants from industrial activity into waters of the United States. Such laws may require that we comply with stormwater runoff and wastewater discharge standards or obtain permits limiting our discharges of pollutants. Failure to comply with CWA requirements could subject us to monetary penalties, injunctions, restrictions on operations, and administrative or civil enforcement actions. We may be required to incur certain capital expenditures for wastewater discharge or stormwater runoff treatment technology to comply with wastewater permits and water quality standards.

Employee Health and Safety. We are subject to the Occupational Safety and Health Act (“OSHA”) and comparable state and foreign laws that regulate the protection of the health and safety of our workers. Among other things, we are required to maintain and make available to our employees, state and local government authorities, and others information about hazardous materials used or produced by our operations.

Zoning and Building Code Requirements

The engineered building systems and components we manufacture must meet zoning, building code and uplift requirements adopted by local governmental agencies. We believe that our products are in substantial compliance with applicable zoning, code and uplift requirements. Compliance does not have a material adverse effect on our business.

Research and Development Costs

Total expenditures for research and development were $13.4 million, $13.7 million and $14.2 million for fiscal years 2021, 2020 and 2019, respectively. We incur research and development costs to develop new products, improve existing products and improve safety factors of our products.

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Human Capital Resources

As of December 31, 2021, we employed approximately 21,700 persons worldwide. Approximately 2,564 of our employees worldwide are represented by various unions under collective bargaining agreements, which either are under negotiations or will expire in fiscal years 2022, 2023 and 2024.

At Cornerstone Building Brands, corporate stewardship is a responsibility that is deeply embedded in our long brand history. We believe our employees drive our business and our ability to effectively serve our customers and sustain our competitive position.

Leadership, Talent Acquisition and Talent Management

Our talent strategy is rooted in our Success Model, which is built upon our core values of safety, integrity, innovation and teamwork.

Our talent philosophy dictates the way we manage our talent processes to ensure transparent, fair, inclusive, and differentiated treatment for all employees and candidates. We measure performance based upon both results achieved and the way in which results are achieved. Our Success Model reinforces the culture that we want to have at Cornerstone Building Brands. It highlights four key leadership elements and associated behaviors our employees must demonstrate to help us effectively lead at every level. The four elements are: Lead Inclusively, Drive Change, Win as One, and Make an Impact. Success Model behaviors, along with goal achievement, comprise a performance rating that is used in our pay for performance and talent review processes.

We measure performance based upon the results achieved and the way results are achieved. The Success Model is the reference point reinforcing the culture that we want to have at Cornerstone Building Brands. This performance rating is used in our pay for performance and talent review process. Our talent philosophy dictates the way we manage our talent processes to ensure transparent, fair, inclusive, and differentiated treatment for all employees and candidates.

Our leaders receive training on our three pillars of performance management, succession and talent planning, and learning and talent development. This creates the foundation for our leaders to support their teams to connect their work to our purpose, mission, values, and strategies of the Company, motivating and giving them a higher sense of purpose.

Our talent strategy is focused on having the right people in the right places and a consistent and compelling employee experience. This ensures that we are able to exceed our customers’ expectations and allow our people to develop and increase their career opportunities. Our talent management process:

•Clearly defines roles and goals;

•Establishes clear-cut performance and behavior expectations;

•Focuses work in alignment with business strategy and company goals; and

•Creates consistent, structured processes to enable development and career growth — including extensive curriculum and training programs.

The connection with our Success Model creates an environment that makes us a talent magnet. Core to our talent management strategy is embracing all candidates, no matter their background, race, age or sexual orientation and identity, and delivering a transparent, fair and engaging experience across the organization. We recruit, hire and train candidates using a process that is free from biases for or against any individual or group of candidates. Using technology and grass roots recruiting, we specifically target sources where candidates congregate, and we go to market with an employer brand that highlights the value we place on people and opinions from all walks of life.

Competitive Pay and Benefits

To attract and retain the best employees, we focus on providing competitive pay and benefits. Our programs target the market for competitiveness. We provide benefit programs with the goal of improving physical, mental and financial wellness of our employees throughout their lifetime. Some examples include base and variable pay, medical, dental, vision, life and accidental death and dismemberment insurance, paid time off, and retirement savings plans.

When designing our base pay compensation ranges, we perform market analyses to ensure ranges are current and our employees are advancing their earning potential. We also perform frequent compensation studies to assess market movement and competitive changes in local marketplaces. We continually review wages in all countries we operate to ensure we are fair, equitable, competitive and can attract and retain the best talent.

We also provide diverse benefit programs that are aligned with our values and focused on supporting employees and their families based on their unique needs. For example, our Employee Assistance Foundation assists employees in need of emergency financial support and is offered to all employees. We also offer a broad range of benefits to support our

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employees wanting to expand their families through adoption benefits, infertility treatment benefits, and paid time off to bond with their new families.

Employee Safety and Wellness

Cornerstone Building Brands is committed to safety as our highest priority. Safety is one of the Company’s core values and nothing is more important to us than providing a safe work environment. We publicly disclose operational health and safety statistics on our rate of recordable injuries and our rate of lost workdays due to injury involving full-time and part-time employees, temporary employees, and contractors.

Our response to the COVID-19 pandemic illustrated our commitment to safety. To support our employees, customers and communities, we took extraordinary measures and invested in practices to protect employees and reduce the risk of spreading the virus. Our actions included additional cleaning of our facilities, staggering crews, incorporating visual cues to reinforce social distancing, providing face coverings and gloves, as well as implementing daily health validation at our manufacturing and office facilities.

Diversity, Equity and Inclusion

Our Company’s Purpose is to positively contribute to the communities where we live, work, and play. It begins with our employees, a team comprised of many backgrounds, each adding a unique and valued contribution to the success of our organization. Our Diversity, Equity, and Inclusion (“DE&I”) promise supports our purpose, mission and core values to have a work environment that is inclusive and equitable for all employees. This creates an environment of mutual respect where our diversity reflects the communities we serve.

Our Diversity, Equity & Inclusion Council (the “Council”) began with 12 key leaders who were selected based on capability, sphere of influence, interests and their passion for creating an inclusive culture. In 2021, we added the chairs of each Employee Resource Group to the Council, bringing our total Council to 20 members. The Council has a charter and an ongoing prioritized action plan to accelerate the adoption of DE&I in our processes to positively impact our culture. The Council’s responsibilities include defining metrics, setting targets, benchmarking, providing education and training, seeking employee feedback, and building engagement as well as evaluating the Company’s current initiatives with a DE&I context.

The Employee Resource Groups (“ERGs”) have expanded the network of advocates including members and allies of Women!, Unity, Pride, and Patriots. Each group has a core active group who meet monthly and the ERGs meet together once per quarter.

Our success depends on valuing all individuals and leveraging our diverse talent. For more information on the topics above and our management of our human capital resources, please visit our website at https://investors.cornerstonebuildingbrands.com.

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Item 1A. Risk Factors.

Risks Related to the CD&R Offer

The transaction proposed by CD&R may not occur, may increase the volatility of the market price of our common stock and will result in certain costs and expenses.

On February 13, 2022, we received the CD&R Offer, a non-binding letter from CD&R proposing a transaction pursuant to which CD&R would purchase all outstanding shares of our common stock not owned by CD&R for a purchase price of $24.65 in cash per share.

The CD&R Offer provides that no legally binding obligation with respect to any transaction will exist unless and until mutually acceptable definitive documentation is executed and delivered with respect thereto. There can be no assurance that the transaction proposed by CD&R or any related transaction will be completed, or as to the terms of any such potential transaction.

The market price of our common stock may reflect various assumptions as to whether the proposed transaction with CD&R will occur. Variations in the market price of our common stock may occur as a result of changing assumptions regarding the proposed transaction, independent of changes in our business, financial condition or prospects or changes in general market or economic conditions. As a result, a definitive agreement regarding a transaction, or a failure to reach a definitive agreement regarding a transaction, could result in a significant change in the market price of our common stock.

We expect to incur costs in connection with the consideration of the CD&R Offer, including costs of financial and legal advisors to the Special Committee. Mergers such as the one proposed in the CD&R Offer often attract litigation and the Company may be required to expend additional resources defending such litigation. It is difficult to estimate the aggregate amount of such costs, although they could be substantial. In addition, uncertainly associated with the potential transaction could adversely affect the Company's ability to attract, retain and motivate key employees, which could have a negative effect on our operations and business plans.

Risks Related to Our Industry and Economic and Market Conditions

Our industry is cyclical and highly sensitive to macroeconomic conditions. Negative economic events including, but not limited to, recessions, lower consumer confidence, high interest rates, inflation, and lower new construction home starts may materially and adversely affect the outlook for our business, liquidity and results of operations.

The construction industry is highly sensitive to national and regional macroeconomic conditions.

Current market estimates continue to show recovery across the nonresidential construction markets from the dip in fiscal 2020, returning above fiscal 2019 levels. According to Dodge Data & Analytics, Inc. (“Dodge”), low-rise nonresidential construction starts as measured in square feet and comprising buildings of up to five stories, were up in fiscal 2021 by as much as 15% as compared to our fiscal 2020. However, there can be no assurance that a recovery will be sustained as this market is impacted by the greater-than-normal economic volatility, rising inflation rates and continued supply chain disruptions.

In addition to commercial and residential market indicators, we also depend to a significant extent upon the levels of home repair and remodeling and new construction spending for our residential businesses, which have declined significantly in the past and may decline in the future. According to the U.S. Census Bureau, housing levels in fiscal 2021 increased over 12% as compared to our fiscal 2020 while remodeling activity increased 9%, according to the Leading Indicator of Remodeling Activity published by the Joint Center of Housing Studies. While each of these markets has performed well, greater-than-normal volatility in factors such as interest rates, inflation, consumer confidence, unemployment and the availability of consumer credit could negatively impact our business.

Our performance is also dependent upon consumers having the ability to finance home repair and remodeling projects and/or the purchase of new homes. The ability of consumers to finance these purchases is affected by such factors as new and existing home prices, homeowners’ equity values, interest rates and home foreclosures, which in turn could result in a tightening of lending standards by financial institutions and reduce the ability of some consumers to finance home purchases or repair and remodeling expenditures. Declining home values, increased home foreclosures and tightening of credit standards by lending institutions have in the past and may in the future negatively impact the home repair and remodeling and the new construction sectors, which could adversely affect our financial condition and operating results.

Historically, any uncertainty about current economic conditions has had a negative effect on our business, and will continue to pose a risk to our business as our customers may postpone spending in response to tighter credit, negative financial news and/or declines in income or asset values, which could have a material negative effect on the demand for our products. Other factors that could influence demand include fuel and other energy costs, conditions in the nonresidential real

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estate markets, labor and healthcare costs, access to credit, tariffs, and other macroeconomic factors. From time to time, our industry has also been adversely affected in various parts of the country by declines in nonresidential construction starts, including but not limited to, high vacancy rates, changes in tax laws affecting the real estate industry, high interest rates and the unavailability of financing. Sales of our products may be adversely affected by continued weakness in demand for our products within particular customer groups, or a continued decline in the general construction industry or particular geographic regions. These and other economic factors could have a material adverse effect on demand for our products and on our financial condition and operating results.

We cannot predict the timing or severity of any future economic or industry downturns or adverse weather conditions. A prolonged economic downturn or negative weather patterns, particularly in states where many of our sales are made, would have a material adverse effect on our results of operations and financial condition.

Uncertainty and volatility in the financial markets and worldwide economic conditions may adversely affect our operating results.

The markets in which we compete are sensitive to general business and economic conditions in the United States and worldwide, including availability of credit, interest rates, fluctuations in capital, credit and mortgage markets and business and consumer confidence. Adverse developments in global financial markets and general business and economic conditions, including through recession, downturn or otherwise, could have a material adverse effect on our business, financial condition, results of operations and cash flows, including our ability and the ability of our customers and suppliers to access capital.

The COVID-19 pandemic has had, and may continue to have, an adverse effect on our business.

Our business and operations have been adversely affected by the COVID-19 pandemic and may continue to be adversely affected by any recurrence or worsening of the pandemic, particularly if located in regions where we derive a significant amount of our sales or profit or where our manufacturing facilities, suppliers or customers are located. Since 2020, we have experienced volatility in the markets in which we participate due to the COVID-19 pandemic.

In response to the pandemic, we have implemented and may need to further implement a range of actions aimed at reducing costs and preserving liquidity. While our manufacturing facilities are fully operational, closures of facilities may be needed in the future, which could disrupt our operations and negatively impact our business, financial condition and results of operation.

The COVID-19 pandemic could also cause disruptions in our supply chain. The inability of our suppliers to meet our supply needs in a timely manner or our quality standards could cause delays to delivery date requirements of our customers. Such failures could result in the cancellation of orders, customers’ refusal to accept deliveries, a reduction in purchase prices, and ultimately, termination of customer relationships, any of which could have a negative impact on our business, financial condition, results of operations and liquidity. In that case, we may be required to seek alternative sources of materials or products. Although we believe that we can manage our exposure to these risks, we cannot be certain that we will be able to identify such alternative materials or sources without delay or without greater cost to us. Our inability to identify and secure alternative sources of supply in this situation could negatively impact our ability to satisfy customer orders.

We could also be adversely affected by the COVID-19 pandemic if government authorities impose further mandatory closures or restrictions on our operations, seek voluntary closures, or if suppliers issue mass recalls of products. The perceived risk of infection or health risk may also adversely affect our business and operating results.

We cannot predict the duration or scope of the COVID-19 pandemic, the effectiveness of vaccines for COVID-19 or the future impact of the pandemic on our business, financial condition and results of operations. Any significant downturn in new home construction as a result of the economic impact of the COVID-19 pandemic could negatively impact our business, financial condition and results of operations.

To the extent the COVID-19 pandemic adversely affects our business, financial conditions and results of operations, it may also have the effect of heightening many of the other risks described in this “Risk Factors” section, such as those relating to our substantial level of indebtedness, our future capital needs, our need to generate sufficient cash to service our indebtedness and our ability to obtain financing on acceptable terms or at all. Further, an outbreak of any other health epidemic or pandemic may expose our business and operations to similar risks as set forth above.

Risks Related to Our Business

Failure to attract and retain employees could adversely affect our results of operation and financial condition.

Our ability to attract and retain or replace employees is challenging due to a shortage of both hourly and technically skilled workers for our manufacturing facilities. We face intense competition for talent to operate our manufacturing facilities, including from current and potential competitors in our industry. As a large-scale manufacturer, our workforce is

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distributed across North America, where candidates are in high demand which changes based upon many factors in local markets, and we may incur significant costs to attract and retain them. If we do not attract and retain the services of individuals to operate our manufacturing facilities we may experience delays in producing our products which may reduce our net revenues and adversely affect our results of operations and financial condition.

Increases in labor costs, potential labor disputes, union organizing activity and work stoppages at our facilities or the facilities of our suppliers could delay or impede our production, reduce sales of our products and increase our costs.

Our ability to attract and retain qualified manufacturing team members to operate our manufacturing plants efficiently is critical to our financial performance. Our financial performance is affected by the availability of qualified personnel and the cost of labor. As of December 31, 2021, approximately 12% of our employees were represented by labor unions, the collective bargaining agreements with whom either are under negotiations or will expire in fiscal years 2022, 2023 and 2024. We are subject to the risk that strikes or other types of conflicts with personnel may arise or that we may become a subject of union organizing activity. Furthermore, some of our direct and indirect suppliers have unionized work forces. Strikes, work stoppages or slowdowns experienced by these suppliers could result in slowdowns or closures of facilities where components of our products are manufactured. Any interruption in the production or delivery of our products could reduce sales of our products and increase our costs. Any labor shortage will create operating inefficiencies that could adversely impact our financial performance.

An inability to successfully develop new products or improve existing products could negatively impact our ability to attract new customers and/or retain existing customers, including our significant customers.

Our success depends on meeting consumer needs and anticipating changes in consumer preferences with successful new products and product improvements. We aim to introduce products and new or improved production processes proactively to offset obsolescence and decreases in sales of existing products. While we devote significant focus to the development of new products, we may not be successful in product development and our new products may not be commercially successful. In addition, it is possible that competitors may improve their products more rapidly or effectively, which could adversely affect our sales. Furthermore, market demand may decline as a result of consumer preferences trending away from our categories or trending down within our brands or product categories, which could adversely impact our results of operations, cash flows and financial condition.

Our Windows and Siding segments depend on a core group of significant customers for a substantial portion of net sales and we expect this to continue for the foreseeable future. The loss of, or a significant adverse change in our relationships with our largest customers, or loss of market position of any major customer, whether because of an inability to successfully develop new products or improve existing products, or otherwise, could cause a material decrease in net sales. The loss of, or a reduction in orders, from any significant customers, losses arising from customers’ disputes regarding shipments, fees, merchandise condition or performance or related matters, or an inability to collect accounts receivable from any major customer could adversely impact our net income and cash flow. In addition, revenue from customers that have accounted for significant revenue in past periods, individually or as a group, may not continue, or if continued, may not reach or exceed historical levels in any period.

Manufacturing or assembly realignments may result in a decrease in our short-term earnings, until the expected cost reductions are achieved, due to the costs of implementation.

We continually review our manufacturing and assembly operations and sourcing capabilities. Effects of periodic manufacturing realignment, cost savings programs, and labor ramp-up costs could result in a decrease in our short-term earnings until the expected cost reductions are achieved and/or production volumes stabilize. Such programs may include the consolidation and integration of facilities, functions, systems and procedures. Such actions may not be accomplished as quickly as anticipated and the expected cost reductions may not be achieved or sustained.

Our business may be adversely affected by weather conditions and other external factors beyond our control.

Markets for our products are seasonal and can be affected by inclement weather conditions. Historically, our business has experienced increased sales in the second and third quarters of the year due to increased construction during those periods. Because much of our overhead and operating expenses are spread ratably throughout the year, our operating profits tend to be lower in the first and fourth quarters. Inclement weather conditions can affect the timing of when our products are applied or installed, causing reduced profit margins when such conditions exist. For example, unseasonably cold weather or extraordinary amounts of rainfall may decrease construction activity.

Further, other external factors beyond our control could cause disruptions at any of our facilities, including maintenance outages; prolonged power failures or reductions; a breakdown, failure or substandard performance of any equipment or other operational problems; disruptions in the transportation infrastructure, including railroad tracks, bridges, tunnels or roads; fires, floods, hurricanes, earthquakes or other catastrophic disasters; pandemics, including the COVID-19 pandemic; or an act

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of terrorism. Any prolonged disruption in operations at any of our facilities could cause a significant loss in production. As a result, we could incur significantly higher costs and longer lead times associated with distributing our products to customers during the time that it takes for us to reopen or replace a damaged facility, which could cause our customers to purchase from our competitors either temporarily or permanently. If any of these events were to occur, it could adversely affect our business, financial condition, cash flows and results of operations.

Price volatility and supply constraints for raw materials could prevent us from meeting delivery schedules to our customers or reduce our profit margins.

Our business is heavily dependent on the price and supply of raw materials including steel, PVC resin, aluminum and glass. Raw material prices have been volatile in recent years and may remain volatile in the future. Raw material prices are influenced by numerous factors beyond our control, including general economic conditions domestically and internationally, currency fluctuations, the availability of raw materials, competition, labor costs, freight and transportation costs, production costs, tariffs, import duties and other trade restrictions. For example, in 2018, the Trump administration implemented new tariffs on imports of steel and aluminum into the United States. In response to these tariffs, the European Union, Canada, Mexico and China announced tariffs on U.S. goods and services. Although some of these tariffs have been rescinded or suspended, these tariffs, along with any additional tariffs or trade restrictions, could result in reduced economic activity and increased costs in operating our business.

A sudden increase in demand for steel, PVC resin, aluminum or glass could affect our ability to purchase such raw materials and result in rapidly increasing prices. We have historically been able to substantially pass on significant cost increases in raw materials through price increases to our customers; however, we may not be able to do so in the future. Further, if the available supply of any of the raw materials we use declines, we could experience a deterioration of service from our suppliers or interruptions or delays that may cause us not to meet delivery schedules to our customers. Any of these problems could adversely affect our results of operations and financial condition. We can give no assurance that steel, PVC resin, aluminum or glass will remain available, that prices will not continue to be volatile or that we will be able to purchase these raw materials on favorable or commercially reasonable terms.

Further, we use energy in the manufacturing and transportation of our products. In particular, our manufacturing plants use considerable amounts of electricity and natural gas. Consequently, our operating costs typically increase if energy costs rise. During periods of higher energy costs, we may not be able to recover our operating cost increases through price increases without reducing demand for our products. To the extent we are not able to recover these cost increases through price increases or otherwise, our profitability and cash flow will be adversely impacted. We partially hedge our exposure to higher prices through fixed forward positions.

We rely on third-party suppliers for materials in addition to steel, PVC resin, aluminum and glass, and if we fail to identify and develop relationships with a sufficient number of qualified suppliers, or if there is a significant interruption in our supply chains, our business and results of operations could be adversely affected.

In addition to steel, PVC resin, aluminum and glass, our operations require other raw materials from third-party suppliers. We generally have multiple sources of supply for our raw materials; however, in some cases, materials are provided by a single supplier. The loss of, or substantial decrease in the availability of, products from our suppliers, or the loss of a key supplier, could adversely impact our financial condition and results of operations. In addition, supply interruptions could arise from shortages of raw materials, labor disputes or weather conditions affecting products or shipments or other factors beyond our control. Short- and long-term disruptions in our supply chain would result in a need to maintain higher inventory levels as we replace similar product, a higher cost of product and ultimately a decrease in our revenues and profitability. To the extent our suppliers experience disruptions, there is a risk for delivery delays, production delays, production issues or delivery of non-conforming products by our suppliers. Even where these risks do not materialize, we may incur costs as we prepare contingency plans to address such risks. In addition, disruptions in transportation lines could delay our receipt of raw materials. If our supply of raw materials is disrupted or our delivery times are extended, our results of operations and financial condition could be materially adversely affected. Furthermore, some of our third-party suppliers may not be able to handle commodity cost volatility or changing volumes while still performing up to our specifications.

If we are unable to enforce our intellectual property rights, or if such intellectual property rights become obsolete, our competitive position could be adversely affected.

As a company that manufactures and markets branded products, we rely heavily on trademark and service mark protection to protect our brands. We also have issued patents and rely on trade secret and copyright protection for certain of our technologies. These protections may not adequately safeguard our intellectual property and we may incur significant costs to defend our intellectual property rights, which may harm our operating results. There is a risk that third parties, including our current competitors, will infringe on our intellectual property rights, in which case we would have to defend

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these rights. There is also a risk that third parties, including our current competitors, will claim that our products infringe on their intellectual property rights. These third parties may bring infringement claims against us or our customers, which may harm our operating results.

We also rely on third party license agreements for certain trademarks and technologies we employ. There is a risk that third parties may modify or terminate such licenses, which may harm our operating results. While these license agreements generally provide that the licensors will indemnify us, subject to certain limitations, for certain infringement liabilities, our ability to seek indemnification from the respective licensors is limited by various factors, including the financial condition of the licensor as well as by the terms and limits of such indemnities or obligations. As a result, there can be no assurance that we could receive any indemnification from licensors, and any related infringement liabilities, costs or penalties could have a material adverse effect on our financial condition and results of operations.

There can be no assurance that the efforts we have taken to protect our proprietary rights will be sufficient or effective, that any pending or future patent and trademark applications will lead to issued patents and registered trademarks in all instances, that others will not develop or patent similar or superior technologies, products or services, or that our patents, trademarks and other intellectual property will not be challenged, invalidated, misappropriated or infringed by others. If we are unable to protect and maintain our intellectual property rights, or if there are any successful intellectual property challenges or infringement proceedings against us, our business and revenue could be materially and adversely affected.

We could incur significant costs as a result of compliance with, violations of or liabilities under applicable environmental, health and safety laws.

Our operations are subject to various federal, state, local and foreign environmental, health and safety (“EHS”) laws. Among other things, these laws (i) regulate the emission or discharge of materials into the environment, (ii) govern the use, storage, treatment, disposal and management of hazardous substances and wastes, (iii) protect the health and safety of our employees, the end-users of our products, and the general public, (iv) regulate the materials used in our products, and (v) impose liability for the costs of investigating and remediating present and past releases of hazardous substances and other related damages. Violations of these laws or of any conditions contained in environmental permits could result in substantial fines or penalties, injunctive relief, requirements to install pollution or other controls or equipment, civil and criminal sanctions, permit revocations, and facility shutdowns. We could be held liable for the costs to investigate, remediate or otherwise address contamination at any real property we have historically owned, operated, or contracted for waste disposal site or at which we or predecessors released hazardous materials. We also could incur fines, penalties or sanctions or be subject to third-party claims, including indemnification claims, for property damage, personal injury or otherwise because of violations of or liabilities under EHS laws or in connection with releases of hazardous materials. In addition, changes in or new interpretations of existing EHS laws, regulations or enforcement policies, the discovery of previously unknown contamination, or the imposition of other environmental liabilities or obligations in the future, in each case with respect to our products or business activities, may lead to additional costs that could have a material adverse effect on our business, financial condition or results of operations.

Changes in building codes and standards could increase the cost of our products, lower the demand for our products, or otherwise adversely affect our business.

Our products and markets are subject to extensive and complex local, state, federal, and foreign statutes, ordinances, rules, and regulations. These mandates, including building design safety and construction standards and zoning requirements, affect the cost, selection, and quality requirements of building structures and envelopes, including roofs, windows and siding.

These statutes, ordinances, rules, and regulations often provide broad discretion to governmental authorities as to the types and quality specifications of products used in new residential and non-residential construction and home renovations and improvement projects. Compliance with these standards and changes in such statutes, ordinances, rules, and regulations may increase the costs of manufacturing our products or may reduce the demand for certain of our products in affected geographical areas or product markets. All or any of these changes could have a material adverse effect on our business, financial condition, and results of operations.

The industries in which we operate are highly competitive.

We compete with all other alternative methods of building construction, which may be viewed as more traditional, more aesthetically pleasing or having other advantages over our products. In addition, competition in the construction markets of the building industry is intense. It is based primarily on quality; service; on-time delivery and project completion; ability to provide added value in the design and engineering of buildings; price; and personal relationships with customers.

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In our Windows and Siding segments, we compete with other national and regional manufacturers of exterior building products. Some of these companies are larger and have greater financial resources than we do. Accordingly, these competitors may be better equipped to withstand changes in conditions in the industries in which we operate and may have significantly greater operating and financial flexibility than we do. Competitors could take a greater share of sales and cause us to lose business from our customers. Additionally, our products face competition from alternative materials, such as wood, composites and fiberglass in windows, and wood, metal, fiber cement, masonry and composites in siding. An increase in competition from other exterior building products manufacturers and alternative building materials could cause us to lose our customers and lead to net sales decreases.

In our Commercial segment, we compete with a number of other manufacturers of metal components and engineered building systems and providers of coil coating services ranging from small local firms to large national firms. In addition, we and other manufacturers of metal components and engineered building systems compete with alternative methods of building construction. If these alternative building methods compete successfully against us, such competition could adversely affect us. In addition, several of our competitors have been acquired by steel producers. Competitors owned by steel producers may have a competitive advantage on raw materials that we do not enjoy. Steel producers may prioritize deliveries of raw materials to such competitors or provide them with more favorable pricing, both of which could enable them to offer products to customers at lower prices or accelerated delivery schedules.

We face risks related to acquisitions and dispositions that could adversely affect our results of operations.

We have a history of expansion through acquisitions, and, from time to time, we evaluate acquisitions and dispositions of assets and businesses. We believe that if our industry continues to consolidate, our future success may depend, in part, on our ability to successfully complete acquisitions. Acquisitions and dispositions involve a number of risks, including:

•the risk of incorrect assumptions or estimates regarding the future results of an acquired business or expected cost reductions or other synergies expected to be realized as a result of acquiring the business;

•the risk of disposing of an asset or business at a price or on terms that are less favorable than we had anticipated;

•difficulty in finding buyers;

•diversion of management’s attention from existing operations;

•unexpected losses of key employees, customers and suppliers of an acquired business;

•integrating the financial, technological and management standards, processes, procedures and controls of an acquired business with those of our existing operations;

•increasing the scope, geographic diversity and complexity of our operations; and

•potential litigation or other claims arising from an acquisition or disposition.

We can provide no assurance that we will be successful in identifying or completing any future acquisitions or dispositions or that any businesses or assets that we are able to acquire will be successfully integrated into our existing business. The incurrence of additional debt, contingent liabilities and expenses in connection with any future acquisitions could have a material adverse effect on our financial condition and results of operations. Further, we cannot predict the effect, if any, that any announcement or consummation of an acquisition or disposition would have on the trading price of our common stock.

In addition, we may be subject to claims arising from the operations of businesses from periods prior to the dates we acquired them. These claims or liabilities could be significant. Our ability to seek indemnification from the former owners for these claims or liabilities is limited by various factors, including the specific limitations contained in the respective acquisition agreements and the financial ability of the former owners to satisfy such claims or liabilities. If we are unable to enforce any indemnification rights we may have against the former owners or if the former owners are unable to satisfy their obligations for any reason, including because of their current financial position, or if we do not have any right to indemnification, we could be held liable for the costs or obligations associated with such claims or liabilities, which could adversely affect our operating performance.

Restructuring our operations may harm our profitability, financial condition and results of operations. Our ability to fully achieve the estimated cost savings is uncertain.

We have developed plans to improve cost efficiency and optimize our combined manufacturing plant footprint considering our recent acquisitions and restructuring efforts. Future charges related to the plans may harm our profitability in the periods incurred. Additionally, if we were to incur unexpected charges related to the plans, our financial condition and results of operations may suffer.

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Implementation of these plans carries significant risks, including:

•actual or perceived disruption of service or reduction in service levels to our customers;

•failure to preserve supplier relationships and distribution, sales and other important relationships and to resolve conflicts that may arise;

•potential adverse effects on our internal control environment and an inability to preserve adequate internal controls;

•diversion of management attention from ongoing business activities and other strategic objectives; and

•failure to maintain employee morale and retain key employees.

Because of these and other factors, we cannot predict whether we will fully realize the cost savings from these plans. If we do not fully realize the expected cost savings from these plans, our business and results of operations may be negatively affected. Also, if we were to experience any adverse changes to our business, additional restructuring activities may be required in the future.

We may be significantly affected by global climate change or by legal, regulatory or market responses to global climate change.

Efforts to mitigate the effects of global climate change have led to, and may lead to future, federal, state and foreign legislative and regulatory efforts to limit greenhouse gas (“GHG”) emissions. While GHG regulations do not materially affect our facilities as they are insignificant sources, more stringent federal, regional, state and foreign laws and regulations relating to global climate change and GHG emissions, if adopted, could impact our facilities, raw material suppliers, the transportation and distribution of our products, and our customers’ businesses, which could reduce demand for our products or cause us to incur additional capital, operating or other costs. Until the timing, scope and extent of any future legislation or regulation becomes known, we cannot predict its effect on our business. Further, global climate change may increase the frequency or intensity of extreme weather events, such as storms, floods, extreme temperatures, and other events that could affect our facilities and demand for our products.

Evolving expectations around corporate responsibility practices, specifically related to environmental, social and governance (“ESG”) matters, may expose us to reputational and other risks.

Investors, stockholders, customers, suppliers and other third parties are increasingly focusing on ESG and corporate social responsibility endeavors and reporting. Certain institutional investors, investment funds, other influential investors, customers, suppliers and other third parties are also increasingly focused on ESG practices. Companies that do not adapt to or comply with the evolving investor or stakeholder expectations and standards, or which are perceived to have not responded appropriately, may suffer from reputational damage and result in the business, financial condition and/or stock price of a company being materially and adversely affected. Further, this increased focus on ESG issues may result in new regulations and/or third-party requirements that could adversely impact our business, or certain shareholders reducing or eliminating their holdings of our stock. Additionally, an allegation or perception that we have not taken sufficient action in these areas could negatively harm our reputation.

Breaches of our information system security measures could disrupt our internal operations.

We are dependent upon information technology for the distribution of information internally and also to our customers and suppliers. This information technology is subject to theft, damage or interruption from a variety of sources, including but not limited to malicious computer viruses, security breaches and defects in design. Purchase of our products may involve the transmission and/or storage of data, including in certain instances customers’ business and personally identifiable information. We also hold the sensitive personal data of our current and former employees, as well as proprietary information of our business, including strategic plans and intellectual property. Thus, maintaining the security of computers, computer networks and data storage resources is a critical issue for us and our customers and employees, as security breaches could result in vulnerabilities and loss of and/or unauthorized access to confidential information.

We have in the past experienced, and may in the future face, hackers, cybercriminals or others gaining unauthorized access to, or otherwise misusing, our systems to misappropriate our proprietary information and technology, interrupt our business, and/or gain unauthorized access to confidential information. For example, in August 2020, we detected a ransomware attack impacting certain of our operational and information technology systems. Promptly upon our detection of the attack, we launched an investigation, notified law enforcement and engaged the services of specialized legal counsel and other incident response professionals. While we were able to recover our critical operational data and business systems, there is no guarantee that we will have similar success with an attack in the future should one occur. Any such future attack could lead to the public disclosure of customer data, our trade secrets or other intellectual property, personal information of our employees, or material financial and other information related to our business. The release of any of this information could have a material adverse effect on our business, reputation, financial condition and results of operations.

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The reliability and security of our information technology infrastructure and software, and our ability to expand and continually update technologies in response to our changing needs is critical to our business. To the extent that any disruptions or security breaches result in a loss or damage to our data, it could cause harm to our reputation or brand. This could lead some customers to stop purchasing our products and reduce or delay future purchases of our products or the use of competing products; lead to private causes of action that could result in a judgment, settlement or other liability; lead to state or federal enforcement actions, which could result in fines, penalties and/or other liabilities and which may cause us to incur legal fees and costs; and/or result in additional costs associated with responding to a cyberattack. Increased regulation regarding cyber security may increase our costs of compliance, including fines and penalties, as well as costs of cyber security audits. Any of these actions could materially adversely impact our business and results of operations.

We have invested in industry appropriate protections and monitoring practices of our data and information technology to reduce these risks and continue to monitor our systems on an ongoing basis for any current or potential threats. There can be no assurance, however, that our efforts will prevent breakdowns or breaches to our third party providers’ databases or systems that could adversely affect our business.

Damage to our computer infrastructure and software systems could harm our business.

The unavailability of any of our primary information management systems for any significant period of time could have an adverse effect on our operations. In particular, our ability to deliver products to our customers when needed, collect our receivables and manage inventory levels successfully largely depend on the efficient operation of our computer hardware and software systems. Through information management systems, we provide inventory availability to our sales and operating personnel, improve customer service through better order and product reference data, and monitor operating results. Difficulties associated with upgrades, installations of major software or hardware, and integration with new systems could lead to business interruptions that could harm our reputation, increase our operating costs, and decrease our profitability. In addition, these systems are vulnerable to, among other things, damage or interruption from power loss, computer system and network failures, loss of telecommunications services, operator negligence, physical and electronic loss of data, or security breaches and computer viruses.

We have contracted with third-party service providers that provide us with redundant data center services in the event that our major information management systems are damaged. The backup data centers and other protective measures we take could prove to be inadequate. Our inability to restore data completely and accurately could lead to inaccurate and/or untimely filings of our periodic reports with the SEC, tax filings with the Internal Revenue Service (“IRS”) or other required filings, all of which could have a significant negative impact on our corporate reputation and could negatively impact our stock price or result in fines or penalties that could impact our financial results.

Our enterprise resource planning technologies will require maintenance or replacement in order to allow us to continue to operate and manage critical aspects of our business.

We rely heavily on enterprise resource planning technologies (“ERP Systems”) from third parties in order to operate and manage critical internal functions of our business, including accounting, order management, procurement, and transactional entry and approval. Certain of our ERP Systems are no longer supported by their vendor, are reaching the end of their useful life or are in need of significant updates to adequately perform the functions we require. We have limited access to support for older software versions and may be unable to repair the hardware required to run certain ERP Systems on a timely basis due to the unavailability of replacement parts. In addition, we face operational vulnerabilities due to limited access to software patches and software updates on any software that is no longer supported by their vendor. We are planning hardware and software upgrades to our ERP Systems and are in discussions with third-party vendors regarding system updates.

If our ERP Systems become unavailable due to extended outages or interruptions, or because they are no longer available on commercially reasonable terms, our operational efficiency could be harmed and we may face increased replacement costs. We may also face extended recovery time in the event of a system failure due to lack of resources to troubleshoot and resolve such issues. Our ability to manage our operations could be interrupted and our order management processes and customer support functions could be impaired until equivalent services are identified, obtained and implemented on commercially reasonable terms, all of which could adversely affect our business, results of operations and financial condition.

We risk liabilities and losses due to personal injury, property damage or product liability claims, which may not be covered by insurance.

Our workers are subject to the usual hazards associated with work in manufacturing environments. Operating hazards can cause personal injury and loss of life, as well as damage to or destruction of business personal property, and possible environmental impairment. We are subject to either deductible or self-insured retention (SIR) amounts, per claim or occurrence, under our Property/Casualty insurance programs, as well as an individual stop-loss limit per claim under our group medical insurance plan. We maintain insurance coverage to transfer risk, with aggregate and per-occurrence limits and

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deductible or retention levels that we believe are consistent with industry practice. The transfer of risk through insurance cannot guarantee that coverage will be available for every loss or liability that we may incur in our operations.

Exposures that could create insured (or uninsured) liabilities are difficult to assess and quantify due to unknown factors, including but not limited to injury frequency and severity, natural disasters, terrorism threats, third-party liability, and claims that are incurred but not reported (“IBNR”). Although we engage third-party actuarial professionals to assist us in determining our probable future loss exposure, it is possible that claims or costs could exceed our estimates or our insurance limits, or could be uninsurable. In such instances we might be required to use working capital to satisfy these losses rather than to maintain or expand our operations, which could materially and adversely affect our operating results and our financial condition.

Further, we face an inherent business risk of exposure to product liability claims, including class action claims and warranties, in the event that the use of any of our products results in personal injury or property damage. In the event that any of our products are defective or prove to be defective, among other things, we may be responsible for damages related to any defective products and may be required to cease production, recall or redesign such products. Because of the long useful life of our products, it is possible that latent defects might not appear for several years. Any insurance we maintain may not continue to be available on acceptable terms or such coverage may not be adequate for liabilities actually incurred. Further, any claim or product discontinuance, recall or redesign could result in adverse publicity against us, which could cause sales to decline, or increase warranty costs.

We face risks related to our international operations.

In addition to the United States, we operate our business in certain foreign jurisdictions, principally in Canada and Mexico, and make sales in certain other jurisdictions. Our operations in Canada generated approximately 7.6% of our revenues in 2021. As such, our net sales, earnings and cash flow are exposed to risk from changes in foreign exchange rates, which can be difficult to mitigate. Depending on the direction of changes relative to the U.S. dollar, Canadian dollar values can increase or decrease the reported values of our net assets and results of operations. We hedge this foreign currency exposure by evaluating the usage of certain derivative instruments which hedge certain, but not all, underlying economic exposures.

Our international operations require us to comply with certain U.S. and international laws, such as import/export laws and regulations, anti-boycott laws, economic sanctions, laws and regulations, the U.S. Foreign Corrupt Practices Act and similar anti-bribery laws. We operate in parts of the world, including Mexico, that have experienced governmental corruption to some degree and, in certain circumstances, strict compliance with anti-bribery laws may conflict with local customs and practices. We cannot provide assurance that our internal controls and procedures will always prevent reckless or criminal acts by our employees or agents, or that the operations of acquired businesses will have been conducted in accordance with our policies and applicable regulations. If we are found to be liable for violations of these laws (either due to our own acts, out of inadvertence or due to the acts or inadvertence of others), we could suffer criminal or civil penalties or other sanctions, including limitations on our ability to conduct our business, which could have a material and adverse effect on our results of operations, financial condition and cash flows.

Significant changes in factors and assumptions used to measure our defined benefit plan obligations, actual investment returns on pension assets and other factors could negatively impact our operating results and cash flows.

The recognition of costs and liabilities associated with our pension plans for financial reporting purposes is affected by assumptions made by management and used by actuaries engaged by us to calculate the benefit obligations and the expenses recognized for these plans. The inputs used in developing the required estimates are calculated using a number of assumptions, which represent management’s best estimate of the future. The assumptions that have the most significant impact on reported results are the discount rate, the estimated long-term return on plan assets for the funded plans, retirement rates, and mortality rates. These assumptions are generally updated annually.

In recent years, the declining interest rates and changes to mortality assumptions have negatively impacted the funded status of our pension plans. In addition, volatile asset performance has also negatively impacted the funded status of our pension plans. Funding requirements for our pension plans may become more significant. If our cash flows and capital resources are insufficient to fund our pension plan obligations, we could be forced to reduce or delay investments and capital expenditures, seek additional capital, or restructure or refinance our indebtedness.

Any impairment of our goodwill and/or intangible assets could negatively impact our results of operations and financial condition.

We evaluate assets on our balance sheet, including goodwill and intangible assets, annually or whenever events or changes in circumstances indicate that their carrying value may not be recoverable. We monitor factors or indicators, such as unfavorable variances from forecasted cash flows, market capitalization, and external market conditions that would require an

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impairment test. We may experience unforeseen events in the future, including related to or as a result of the COVID-19 pandemic, that could adversely affect the value of our goodwill or intangible assets and trigger an interim impairment evaluation. There can be no assurance that valuation multiples will not decline, discount rates will not increase, or the earnings, book values or projected earnings and cash flows of the Company’s reporting units will not decline. Future determinations of significant impairments of goodwill or intangible assets as a result of an impairment test or any accelerated amortization of intangible assets could have a negative impact on the Company’s results of operations and financial condition.

Risks Related to Our Common Stock and Significant Stockholders

Our stock price has been and may continue to be volatile.

The trading price of our Common Stock has fluctuated in the past and is subject to significant fluctuations in response to the following factors, some of which are beyond our control:

•variations in quarterly operating results;

•deviations in our earnings from publicly disclosed forward-looking guidance;

•variability in our revenues;

•changes in earnings estimates by analysts;

•our announcements of significant contracts, acquisitions, strategic partnerships or joint ventures;

•uncertainty about current global economic conditions;

•sales of our Common Stock by our significant stockholders;

•fluctuations in stock market price and volume; and

•other general economic conditions.

During 2021, our stock price on the NYSE ranged from a high of $19.50 per share to a low of $9.47 per share. In recent years, the stock market in general has experienced extreme price and volume fluctuations that have affected the market price for many companies in industries similar to ours. Some of these fluctuations have been unrelated to the operating performance of the affected companies. These market fluctuations may decrease the market price of our common stock in the future.

The CD&R Investors own a significant amount of our Common Stock and have substantial governance and other rights pursuant to the New Stockholders Agreement.

The CD&R Investor Group collectively owned approximately 48.8% of our outstanding Common Stock as of December 31, 2021. As a significant stockholder, the CD&R Investors could significantly influence the outcome of matters requiring a stockholder vote, including the election of directors, the adoption of any amendment to our certificate of incorporation or bylaws and the approval of mergers and other significant corporate transactions. Their influence over us may have the effect of delaying or preventing a change of control or may adversely affect the voting and other rights of other stockholders.

Further, the CD&R Investor Group has substantial governance and other rights pursuant to the New Stockholders Agreement, including the ability, for so long as it beneficially owns at least 7.5% of our outstanding shares of Common Stock, to nominate for election, fill vacancies and appoint replacements for a number of Board members in proportion to the CD&R Investor Group’s percentage beneficial ownership of our outstanding Common Stock, but never to exceed one less than the number of independent, non-CD&R-affiliated directors serving on the Board.

Transactions engaged in by the CD&R Investors, the Golden Gate Investors or our directors or executives involving our Common Stock may have an adverse effect on the price of our Common Stock.

We are party to the New Registration Rights Agreement, which grants the Investors customary demand and piggyback registration rights. In connection with the registration rights granted under the New Registration Rights Agreement, we filed three shelf registration statements on Form S-3, declared effective by the SEC on April 8, 2016, February 28, 2019 and September 2, 2020, registering the resale of shares of our Common Stock held by the CD&R Fund VIII Investor Group, the Golden Gate Investors and CD&R Pisces, respectively.

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As of December 31, 2021, the CD&R Fund VIII Investor Group, CD&R Pisces and the Golden Gate Investor Group owned approximately 18.0%, 30.9% and 5.9%, respectively, of our issued and outstanding Common Stock. Future sales of our shares by these stockholders could have the effect of lowering our stock price. The perceived risk associated with the possible purchase or sale of a large number of shares by these stockholders could cause volatility in our stock price or result in the sale by some of our stockholders of our common stock, thus causing the price of our stock to decline. In addition, actual or anticipated downward pressure on our stock price due to actual or anticipated sales of stock by our directors or officers could cause other institutions or individuals to engage in short sales of our Common Stock, which may further cause the price of our stock to decline.

From time to time our directors, executive officers, or any of the Investors may sell shares of our Common Stock on the open market or otherwise, for a variety of reasons, which may be related or unrelated to the performance of our business. These sales will be publicly disclosed in filings made with the SEC. Our stockholders may perceive these sales as a reflection on management’s view of the business which may result in a drop in the price of our stock or cause some stockholders to sell their shares of our common stock.

Risks Related to Our Indebtedness

We have substantial debt and may incur substantial additional debt, which could adversely affect our financial health, reduce our profitability, limit our ability to obtain financing in the future and pursue certain business opportunities and make payments on our indebtedness.

As of December 31, 2021, we had total indebtedness of approximately $3.1 billion.

The amount of our debt or other similar obligations could have important consequences for us, including, but not limited to:

•a substantial portion of our cash flow from operations must be dedicated to the payment of principal and interest on our indebtedness, thereby reducing the funds available to us for other purposes;

•our ability to obtain additional financing for working capital, capital expenditures, acquisitions, debt service requirements or general corporate purposes and our ability to satisfy our obligations with respect to our outstanding indebtedness may be impaired in the future;

•we are exposed to the risk of increased interest rates because a portion of our borrowings is at variable rates of interest;

•we may be at a competitive disadvantage compared to our competitors with less debt or with comparable debt at more favorable interest rates and who, as a result, may be better positioned to withstand economic downturns;

•our ability to refinance indebtedness may be limited or the associated costs may increase;

•our ability to engage in acquisitions without raising additional equity or obtaining additional debt financing may be limited in the future;

•it may be more difficult for us to satisfy our obligations to our creditors, resulting in possible defaults on and acceleration of such indebtedness;

•we may be more vulnerable to general adverse economic and industry conditions; and

•our flexibility to adjust to changing market conditions and our ability to withstand competitive pressures could be limited, or we may be prevented from making capital investments that are necessary or important to our operations, growth strategy or efforts to improve operating margins of our business units.

If we cannot service our debt, we will be forced to take actions such as reducing or delaying acquisitions and/or capital expenditures, selling assets, restructuring or refinancing our debt or seeking additional equity capital. We can give no assurance that we can do any of these things on satisfactory terms or at all.

Further, the terms of the Current Cash Flow Credit Agreement, the Current ABL Credit Agreement, and the 2020 Indenture provide us and our subsidiaries with the flexibility to incur a substantial amount of additional secured or unsecured indebtedness in the future if we or our subsidiaries are in compliance with certain incurrence ratios set forth therein. Any such incurrence of additional indebtedness may increase the risks created by our current substantial indebtedness. As of December 31, 2021, we were able to borrow up to approximately $565.6 million under the Current ABL Facility. All of these borrowings under the Current ABL Facility would be secured.

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The 2020 Indenture, the Current Cash Flow Credit Agreement and the Current ABL Credit Agreement contain restrictions and limitations that could significantly impact our ability and the ability of most of our subsidiaries to engage in certain business and financial transactions.

The 2020 Indenture, the Current Cash Flow Credit Agreement and the Current ABL Credit Agreement (each as defined in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations”) contain restrictive covenants that, among other things, limit our ability and the ability of our restricted subsidiaries to:

•incur additional indebtedness or issue certain preferred shares;

•pay dividends, redeem stock or make other distributions in respect of capital stock;

•repurchase, prepay or redeem the 6.125% Senior Notes (as defined in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations”) and subordinated indebtedness;

•make investments;

•incur additional liens;

•transfer or sell assets;

•create restrictions on the ability of our restricted subsidiaries to pay dividends to us or make other intercompany transfers;

•make negative pledges;

•consolidate, merge, sell or otherwise dispose of all or substantially all of our assets;

•enter into certain transactions with our affiliates; and

•designate subsidiaries as unrestricted subsidiaries.

In addition, the Current Cash Flow Revolver (as defined in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations”) requires us to maintain a maximum total secured leverage ratio under certain circumstances, and the Current ABL Facility (as defined in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations”) requires us to maintain a minimum consolidated fixed charge coverage ratio under certain circumstances. The Current ABL Credit Agreement also contains other covenants customary for asset-based facilities of this nature. Our ability to borrow additional amounts under the Current Cash Flow Revolver and the Current ABL Facility depends upon satisfaction of these covenants. Events beyond our control can affect our ability to meet these covenants.

We are required to make mandatory pre-payments under the Current Cash Flow Credit Agreement and the Current ABL Credit Agreement upon the occurrence of certain events, including the sale of assets and the issuance of debt, in each case subject to certain limitations and conditions set forth in the Current Cash Flow Credit Agreement and the Current ABL Credit Agreement.

In addition, under certain circumstances and subject to the limitations set forth in the Current Cash Flow Credit Agreement, the Current Term Loan Facility (as defined in Item 7. “Management’s Discussion and Analysis of Financial Condition and Result of Operations”) may require us to make prepayments of the term loans to the extent we generate excess positive cash flow each year.

Any future financing arrangements entered into by us may also contain similar covenants and restrictions. As a result of these covenants and restrictions, we may be limited in our ability to plan for or react to market conditions or to meet extraordinary capital needs or otherwise restricted in our activities. These covenants and restrictions could also adversely affect our ability to finance our future operations or capital needs or to engage in other business activities that would be in our interest.

Our failure to comply with obligations under the Current Cash Flow Credit Agreement, the Current ABL Credit Agreement, or the 2020 Indenture, as well as others contained in any future debt instruments from time to time, may result in an event of default under the Current Cash Flow Credit Agreement, the Current ABL Credit Agreement, or the 2020 Indenture, as applicable. A default, if not cured or waived, may permit acceleration of our indebtedness. If our indebtedness is accelerated, we cannot be certain that we will have sufficient funds available to pay the accelerated indebtedness or that we will have the ability to refinance the accelerated indebtedness on terms favorable to us or at all. If we are forced to refinance these borrowings on less favorable terms or cannot refinance these borrowings, our business, results of operations, financial condition and cash flows could be adversely affected.

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We may have future capital needs and may not be able to obtain additional financing on acceptable terms or at all.

Although we believe that our current cash position and the additional committed funding available under the Current ABL Facility and the Current Cash Flow Revolver is sufficient for our current operations, any reductions in our available borrowing capacity, or our inability to renew or replace our debt facilities, when required or when business conditions warrant, could have a material adverse effect on our business, financial condition and results of operations. Our ability to secure additional financing or financing on favorable terms and to satisfy our financial obligations under indebtedness outstanding from time to time will depend upon our future operating performance, the availability of credit generally, economic and market conditions and financial, business and other factors, many of which are beyond our control.

If financing is not available when needed, or is available on unfavorable terms, we may be unable to take advantage of business opportunities or respond to competitive pressures, any of which could have a material adverse effect on our business, financial condition and results of operations. If we raise additional funds through further issuances of equity, convertible debt securities or other securities convertible into equity, our existing stockholders could suffer significant dilution.

Our credit ratings are important to our cost of capital. The major debt rating agencies routinely evaluate our debt based on a number of factors, which include financial strength and business risk as well as transparency with rating agencies and timeliness of financial reporting. A downgrade in our debt rating could result in increased interest and other expenses on our existing variable interest rate debt, and could result in increased interest and other financing expenses on future borrowings. Downgrades in our debt rating could also restrict our access to capital markets and affect the value and marketability of our outstanding notes.

Our ability to access future financing also may be dependent on regulatory restrictions applicable to banks and other institutions subject to U.S. federal banking regulations, even if the market would otherwise be willing to provide such financing.

An increase in interest rates would increase the cost of servicing our debt and could reduce our profitability, decrease our liquidity and impact our solvency.

To the extent LIBOR exceeds 0.00%, our indebtedness under the Current Cash Flow Facilities (as defined in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations”) and the Current ABL Facility will bear interest at variable rates, and our future indebtedness may bear interest at variable rates. As a result, increases in interest rates could increase the cost of servicing such debt and materially reduce our profitability and cash flows. As of December 31, 2021, assuming all Cash Flow Revolving Credit Facility and Current ABL Facility revolving loans were fully drawn and LIBOR exceeded 0.00%, each one percent change in interest rates would result in approximately a $33.3 million change in annual interest expense on the Current Term Loan Facility and the Current ABL Facility (excluding the impact of any Company hedging arrangements). The impact of such an increase would be more significant for us than it would be for some other companies because of our substantial debt.

The phase-out of LIBOR could increase our interest expense and have a material adverse effect on us.

Borrowings under our Current Cash Flow Facilities and the Current ABL Facility use LIBOR as a benchmark for establishing the applicable interest rate. The Financial Conduct Authority of the United Kingdom ceased the publication of the 1-week and 2-month LIBOR offered rates on December 31, 2021. However, the publication of the remaining LIBOR offered rates will continue until June 30, 2023. Although our borrowing arrangements provide for alternative base rates, those alternative base rates historically would often have led to increased interest rates, in some cases significantly higher, than those we paid based on LIBOR, and may similarly be higher in the future. Therefore, if LIBOR ceases to exist, the interest rates on our Current Term Loan Facility and Current ABL Facility will likely change. The consequences of the phase out of LIBOR cannot be entirely predicted at this time. Any alternative rate for calculating interest with respect to our outstanding indebtedness may not be as favorable or perform in the same manner as LIBOR and could lead to an increase in our interest expense or could impact our ability to refinance some or all of our existing indebtedness. In addition, the transition process may involve, among other things, increased volatility or illiquidity in financial markets, which could also have an adverse effect on us whether or not any replacement rate applicable to our borrowings is affected. Any such effects of the transition away from LIBOR, as well as other unforeseen impacts, may result in increased interest expense and other expenses, difficulties, complications or delays in connection with future financing efforts or otherwise have a material adverse impact on our financial condition.

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Item 1B. Unresolved Staff Comments.

There are no unresolved staff comments outstanding with the SEC at this time.

Item 2. Properties.

Our corporate headquarters is located in Cary, North Carolina. We own and lease properties primarily in the United States, Canada, and Mexico. The following table lists our principal manufacturing and warehousing facilities as of December 31, 2021:

Facility	Product type/Usage
Commercial Segment:
Florence, Alabama(1)	Metal building products
Atwater, California	Metal building products
Lithia Springs, Georgia	Metal building products
Marietta, Georgia	Metal coil coating
Monticello, Iowa	Metal building products
Mount Pleasant, Iowa	Metal building products
Brookhaven, Mississippi(1)	Metal building products
Hernando, Mississippi	Metal building products
Jackson, Mississippi	Metal coil coating
Cambridge, Ohio	Metal coil coating
Middletown, Ohio	Metal coil coating
Elizabethton, Tennessee	Metal building products
Lexington, Tennessee	Metal building products
Houston, Texas(2)	Metal building products
Monterrey, Mexico	Metal building products
Siding Segment:
Kearney, Missouri(1)	Vinyl siding and other (trim)
Kansas City, Missouri(1)	Warehousing
Sidney, Ohio	Metal
Gaffney, South Carolina	Injection molded
Gaffney, South Carolina(1)	Warehousing
Jasper, Tennessee	Vinyl siding
Harrisonburg, Virginia(1)	Warehousing
Stuarts Draft, Virginia	Vinyl siding
Martinsburg, West Virginia(1)	Vinyl siding
Martinsburg, West Virginia(1)	Warehousing
Brantford, Ontario, Canada(1)	Warehousing
Paris, Ontario, Canada	Vinyl siding
Windows Segment:
Phoenix, Arizona(1)	Vinyl and aluminum windows
Sacramento, California(1)	Vinyl windows
Vacaville, California(1)	Vinyl windows
Denver, Colorado(1)	Vinyl windows and doors and warehousing
Lithia Springs, Georgia(1)	Vinyl windows and warehousing
Peachtree City, Georgia(1)	Vinyl windows
Lansing, Illinois(1)	Vinyl windows
Paris, Illinois	Vinyl windows
Paris, Illinois(1)	Warehousing
North Brunswick, New Jersey(1)	Vinyl windows
Welcome, North Carolina(1)	Vinyl windows
Marion, Ohio(1)	Vinyl windows
Walbridge, Ohio(1)	Vinyl windows and warehousing
Bryan, Texas	Vinyl and aluminum windows
Dallas, Texas(1)	Vinyl and aluminum windows
Salt Lake City, Utah(1)	Vinyl windows

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Rocky Mount, Virginia(1)(2)	Vinyl and aluminum windows and other (doors) and warehousing
Auburn, Washington(1)	Vinyl windows
Spokane Valley, Washington(1)	Vinyl windows
Ellenboro, West Virginia	Vinyl windows
Pennsboro, West Virginia	Vinyl windows
St. Marys, West Virginia	Vinyl windows and other (trim)
Vienna, West Virginia(1)	Warehousing
Calgary, Alberta, Canada(1)	Vinyl and aluminum windows and other (doors) and warehousing
St. Thomas, Ontario, Canada	Vinyl windows
(1) Location is leased as of December 31, 2021
(2) Location has multiple principal facilities

Item 3. Legal Proceedings.

In November 2018, Aurora Plastics, LLC (“Aurora”) initiated an arbitration demand against Atrium Windows and Doors, Inc., Atrium Extrusion Systems, Inc., and North Star Manufacturing (London) Ltd. (collectively, “Atrium”) pursuant to a Third Amended and Restated Vinyl Compound and Supply Agreement dated as of December 22, 2016. A settlement was reached in this case during the fourth quarter of 2019. The Company has a $3.9 million liability related to the settlement in other current liabilities on the Company’s consolidated balance sheet as of December 31, 2021.

On November 14, 2018, an individual stockholder, Gary D. Voigt, filed a putative class action Complaint in the Delaware Court of Chancery against Clayton Dubilier & Rice, LLC (“CD&R”), Clayton, Dubilier & Rice Fund VIII, L.P. (“CD&R Fund VIII”), and certain directors of the Company. Voigt purported to assert claims on behalf of himself, on behalf of a class of other similarly situated stockholders of the Company, and derivatively on behalf of the Company, the nominal defendant. An Amended Complaint was filed on April 11, 2019. The Amended Complaint asserted claims for breach of fiduciary duty and unjust enrichment against CD&R Fund VIII and CD&R, and for breach of fiduciary duty against twelve director defendants in connection with the Merger. Defendants moved to dismiss the Amended Complaint and, on February 10, 2020, the court denied the motions except as to four of the director defendants. Voigt sought damages in an amount to be determined at trial. On August 25, 2021, the parties to the case filed a Stipulation of Compromise and Settlement (“Stipulation”) setting forth their agreement to settle the litigation. The Stipulation provides for CD&R, CD&R Fund VIII, and the eight director defendants to cause their respective insurers to pay a total of $100 million into an escrow account that will be used to pay escrow expenses, satisfy any fee and incentive amounts awarded by the court in favor of plaintiff and plaintiff’s counsel, and distribute the remaining funds to the Company. The Stipulation further provided that plaintiff’s counsel would apply for an award of attorneys’ fees and litigation expenses in an amount of up to 23.5% of the $100 million payment by the insurers, and that an incentive award for the named plaintiff will be paid solely from the amount of plaintiff attorneys’ fees awarded. This Stipulation required court approval. On January 19, 2022, the Court held a hearing, verbally approved the Stipulation, and approved the plaintiff’s counsel’s application for a fee award of 23.5% of the $100 million settlement payment and the incentive award. On January 20, 2022, the Court entered an Order and Final Judgment approving the Stipulation. The Stipulation represents a gain contingency in accordance with ASC 450, Contingencies, that has not been recorded as the matter was not resolved as of December 31, 2021. The proceeds from the Stipulation will be recorded when received.

As a manufacturer of products primarily for use in nonresidential and residential building construction, we are inherently exposed to various types of contingent claims, both asserted and unasserted, in the ordinary course of business. As a result, from time to time, we and/or our subsidiaries become involved in various legal proceedings or other contingent matters arising from claims, or potential claims. We insure against these risks to the extent deemed prudent by our management and to the extent insurance is available. Many of these insurance policies contain deductibles or self-insured retentions in amounts we deem prudent and for which we are responsible for payment. In determining the amount of self-insurance, it is our policy to self-insure those losses that are predictable, measurable and recurring in nature, such as claims for general liability. The Company regularly reviews the status of on-going proceedings and other contingent matters along with legal counsel. Liabilities for such items are recorded when it is probable that the liability has been incurred and when the amount of the liability can be reasonably estimated. Liabilities are adjusted when additional information becomes available. Management believes that the ultimate disposition of these matters will not have a material adverse effect on the Company’s results of operations, financial position or cash flows. However, such matters are subject to many uncertainties and outcomes are not predictable with assurance.

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Item 4. Mine Safety Disclosures.

Not applicable.

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PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities.

COMMON STOCK

Our Common Stock is listed on the NYSE under the symbol “CNR.” As of February 22, 2022, there were 15,821 holders of record and an estimated 35 beneficial owners of our Common Stock.

ISSUER PURCHASES OF EQUITY SECURITIES

The following table shows our purchases of our Common Stock during the fourth quarter of fiscal 2021:

Period	Total Number  of Shares Purchased(1)	Average  Price Paid per Share		Total Number of Shares Purchased  as Part of Publicly Announced Programs	Maximum Dollar Value of Shares that May Yet be Purchased Under Publicly Announced Programs(2)
October 03, 2021 to October 30, 2021	—	$	—	—	$	49,145
October 31, 2021 to November 27, 2021	400,656	$	16.61	—	$	49,145
November 28, 2021 to December 31, 2021	11,157	$	15.16	—	$	49,145
Total	411,813	$	16.57	—

(1)The total number of shares purchased includes shares of restricted stock that were withheld to satisfy minimum tax withholding obligations arising in connection with the vesting of awards of restricted stock. The required withholding is calculated using the closing sales price on the previous business day prior to the vesting date as reported by the NYSE.

(2)On March 7, 2018, the Company announced that its Board of Directors authorized a stock repurchase program for up to an aggregate of $50.0 million of the Company’s Common Stock. Under this repurchase program, the Company is authorized to repurchase shares, if at all, at times and in amounts that we deem appropriate in accordance with all applicable securities laws and regulations. Shares repurchased are usually retired. There is no time limit on the duration of this program. As of December 31, 2021, approximately $49.1 million remained available for stock repurchases under the program.

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STOCK PERFORMANCE CHART

The following chart compares the yearly percentage change in the cumulative stockholder return on our Common Stock from October 30, 2016 to the end of the fiscal year ended December 31, 2021 with the cumulative total return on the (i) S&P SmallCap 600 Index and (ii) S&P Smallcap Building Products peer group. The comparison assumes $100 was invested on October 30, 2016 in our Common Stock and in each of the foregoing indices and assumes reinvestment of dividends.

In accordance with the rules and regulations of the SEC, the above stock performance chart shall not be deemed to be “soliciting material” or to be “filed” with the SEC or subject to Regulations 14A or 14C of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) or to the liabilities of Section 18 of the Exchange Act and shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933 or the Exchange Act, except to the extent we specifically incorporate it by reference into such filing.

Item 6. Reserved.

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Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

RECENT DEVELOPMENTS

On February 13, 2022, funds affiliated with Clayton Dubilier & Rice, LLC (“CD&R”) submitted a non-binding proposal to acquire all of the Company’s outstanding shares of common stock that CD&R does not already own for a purchase price of $24.65 in cash per share (the “CD&R Offer”).

The CD&R Offer stated that any transaction would be subject to (i) approval by a special committee (“Special Committee”) of our independent directors; and (ii) a vote in favor of the transaction by a majority of the voting power represented by the shares of our common stock owned by stockholders not affiliated with CD&R.

The board of directors of the Company (the “Board”) previously formed a Special Committee to evaluate and consider any potential or actual proposal from CD&R [and any other alternative proposals or other strategic alternatives that may be available to the Company].

The CD&R Offer provides that CD&R reserves the right to withdraw or modify the CD&R Offer at any time and no legally binding obligation with respect to any transaction will exist unless and until mutually acceptable definitive documentation is executed and delivered by us and CD&R. There can be no assurance that the transaction proposed by CD&R or any related transaction will be completed or as to the terms of any such potential transaction, including with respect to pricing or timing.

BUSINESS OVERVIEW

Cornerstone Building Brands, Inc. is the largest manufacturer of exterior building products in North America. The Company serves residential and commercial customers across new construction and the repair & remodel markets. Our mission is to be relentlessly committed to our customers and to create great building solutions that enable communities to grow and thrive.

We have developed and continue to implement a well-defined business strategy focused on (i) driving profitable growth in new and existing markets; (ii) leveraging operational excellence across our businesses; and (iii) implementing a capital allocation framework balanced between a focus on opportunistic investment in high return initiatives and continued debt repayment.

We believe that by focusing on operational excellence every day, creating a platform for future growth and investing in market-leading residential and commercial building brands, we will deliver unparalleled financial results. We design, engineer, manufacture, install and market external building products through our three operating segments: Windows, Siding, and Commercial.

Our manufacturing processes are vertically integrated, which we believe provides cost and competitive advantages. As the leading manufacturer of vinyl windows, vinyl siding, metal roofing and wall systems and metal accessories, Cornerstone Building Brands combines a diverse portfolio of products with an expansive national footprint that includes over 21,700 employees at manufacturing, distribution and office locations primarily in North America.

At Cornerstone Building Brands, corporate stewardship is a responsibility that is deeply embedded in our 75-year history. Our business practices have given us the staying power to make a real difference in countless cities and neighborhoods.

Our sales and earnings are subject to both seasonal and cyclical trends and are influenced by general economic conditions, interest rates, the price of material costs relative to other building materials, the level of residential and nonresidential construction activity, repair and remodel demand and the availability and cost of financing for construction projects. Our sales normally are lower in the first and fourth fiscal quarters of each year compared to the second and third fiscal quarters because of unfavorable weather conditions for construction and typical business planning cycles affecting construction.

Markets We Serve

Our products are available across several large and attractive end markets, including residential new construction, residential repair and remodel and low-rise non-residential construction. We believe that there are favorable underlying fundamental factors that will drive long-term growth across the end markets in which we operate. We also believe the recent COVID-19 pandemic, while still causing economic uncertainty worldwide, has driven strong demand for residential repair and remodel activity, residential new construction and select segments of the low-rise non-residential construction market, such as distribution, warehouse, healthcare and educational facilities in suburban regions; however, the COVID-19 pandemic has also caused challenges in other areas of non-residential construction, most notably in retail and commercial office facilities in densely populated urban centers, where we have minimal, if any, participation. We believe our business is well-

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positioned to benefit from broader societal and population trends favoring suburban regions, as employment and living preferences shift towards such regions.

Cornerstone Building Brands is deeply committed to the communities where our customers and employees live, work and play. We recognize that our customers are increasingly environmentally conscious in their purchasing behavior, and we believe our sustainable solutions favorably address these evolving consumer preferences. For example, certain products in our portfolio are high in recycled end content, virtually 100% recyclable at the end of their useful life and often manufactured to meet or exceed specified sustainability targets, such as ENERGY STAR and LEED certifications. We recognize that efficient use of recycled materials helps to conserve natural resources and reduces environmental impact, and we are committed to driving these sustainable practices throughout our business.

COVID-19 Update

We experienced a significant decrease in customer demand across all our markets during the second quarter of 2020 due to the COVID-19 pandemic mostly due to delays in construction activity driven by temporary closures of non-life sustaining businesses. The continuing impact of the pandemic on our future consolidated results of operations is uncertain. During 2020, the Company quickly implemented a range of actions aimed at reducing costs and preserving liquidity. These actions included the closure of our Ambridge, Pennsylvania Commercial facility and Corona, California Windows facility, permanent workforce reductions, employee furloughs, a hiring freeze, a deferral of annual wage raises, and reducing discretionary and non-essential expenses, such as consulting expenses. Additionally, we reduced capital expenditures to focus on key strategic initiatives, such as automation, product innovation, and critical maintenance items. We believe our business model, our existing balances of domestic cash and cash equivalents, currently anticipated operating cash flows, and overall liquidity will be sufficient to meet our cash needs arising in the ordinary course of business for the next twelve months and positions us to manage our business through this crisis as it continues to unfold. We will continue to evaluate the nature and extent of the COVID-19 pandemic’s impact on our financial condition, results of operations and cash flows.

Significant Business Developments

Our significant business development activities in 2021 include the: (i) acquisition of Prime Windows LLC (April 2021), (ii) divestitures of our IMP and DBCI businesses (August 2021), (iii) acquisition of Cascade Windows, Inc. (August 2021), and (iv) acquisition of Union Corrugating Company Holding, Inc. (December 2021). In addition, in April 2021, we amended our cash flow credit and ABL credit agreements. See Note 4 — Acquisitions, Note 5 — Divestitures and Note 13 — Long Term Debt, in the notes to the consolidated financial statements for more information on our divestitures, acquisitions, and debt.

Residential (Windows and Siding)

Our residential building products are typically installed on a new construction home 90 to 120 days after the start of the home, therefore, there is a lag between the timing of the single-family housing start date and the time in which our products are installed on a home. From an industry perspective, we evaluate the new construction environment by reviewing the U.S. Census Bureau single family housing start statistics to assess the performance of the new construction market for a normal period. We evaluated U.S. Census Bureau single family housing starts for the year ended December 31, 2021 as compared to December 31, 2020 to assess the demand impacts for our products, noting that single-family housing starts increased over 12% on a seasonally adjusted annual rate (SAAR) basis due to overall economic conditions specifically for new construction. For Canada, we evaluate the Canada Mortgage and Housing Corporate statistics, which showed housing starts increased by 25% for the year ended December 31, 2021 compared to 2020.

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The graph below shows the seasonally adjusted annual single family residential new construction starts as of each year end since 1982 as compiled and reported by U.S. Census Bureau:

In addition to new construction, we also evaluate the repair and remodel market to assess residential market conditions by evaluating the Leading Indicator of Remodeling Activity (“LIRA”). For the year ended December 31, 2021, LIRA reflected that the trailing 12 months of remodeling activity increased 9% from 2020. While LIRA is a remodeling economic indicator as it tracks all remodeling activity including kitchen, bathroom and low ticket remodeling, it is not a specific metric for our residential businesses measuring solely windows and siding remodeling growth. Therefore, we utilize this index as a trend indicator for our repair and remodeling business.

Finally, we assess our performance relative to our competitors and the overall siding industry by evaluating the marketing indicators produced by the Vinyl Siding Institute (“VSI”), a third party which summarizes vinyl siding unit sales for the industry. For the year ended December 31, 2021, the VSI reported that siding units increased 9% for the industry. Overall, our Siding segment, including stone veneer, is weighted to the repair and remodel market with approximately 53% of our net sales being attributed to repair and remodeling with the remaining 47% attributed to the new construction market. Historically, we evaluate our net sales performance within the Windows segment by evaluating our net sales for the new construction market and the repair and remodel market. Overall, our Windows segment is relatively balanced with approximately 51% of our net sales attributed to new construction with the remaining 49% attributed to the repair and remodel market.

Commercial

Our sales and earnings are subject to both seasonal and cyclical trends and are influenced by general economic conditions, interest rates, the price of steel relative to other building materials, the level of nonresidential construction activity, roof repair and retrofit demand and the availability and cost of financing for construction projects. Our sales in the Commercial segment normally are lower in the first half of each fiscal year compared to the second half because of unfavorable weather conditions for construction and typical business planning cycles affecting construction.

The nonresidential construction industry is highly sensitive to national and regional macroeconomic conditions. Following a significant downturn in 2008 and 2009, the current recovery of low-rise construction has been uneven and slow. The COVID-19 pandemic interrupted some signs of steady growth in recent years. We believe that the nonresidential construction industry will return to mid-cycle levels of activity over the next several years.

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The graph below shows the annual nonresidential new construction starts, measured in square feet, since 1982 as compiled and reported by Dodge Data & Analytics, Inc. (“Dodge”):

Current market estimates continue to show recovery across the nonresidential construction markets from the 2020 dip, returning above 2019 levels. According to Dodge Data & Analytics, Inc. (“Dodge”), low-rise nonresidential construction starts as measured in square feet and comprising buildings of up to five stories, were up in fiscal 2021 by approximately 19% as compared to our fiscal 2020.

The leading indicators that we follow and that typically have the most meaningful correlation to nonresidential low-rise construction starts are the American Institute of Architects’ (“AIA”) Architecture Mixed Use Index, Dodge Residential single family starts and the Conference Board Leading Economic Index (“LEI”). Historically, there has been a very high correlation to the Dodge low-rise nonresidential starts when the three leading indicators are combined and then seasonally adjusted.

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RESULTS OF OPERATIONS

This section of the Form 10-K generally discusses fiscal 2021 and fiscal 2020 items and year-over-year comparisons of these periods. Discussions of fiscal 2019 items and year-over-year comparisons between fiscal 2020 and fiscal 2019 that are not included in this Form 10-K can be found in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Part II, Item 7 of Cornerstone’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020.

The following table represents key results of operations on a consolidated basis for the periods indicated:

	Year Ended
(Amounts in thousands)	December 31, 2021			December 31, 2020			$ change		% change
Net sales	$	5,583,137		$	4,617,369		$	965,768	20.9	%
Gross profit	1,199,075			1,050,320			148,755		14.2	%
% of net sales	21.5		%	22.7		%
Selling, general and administrative expenses	649,472			579,200			70,272		12.1	%
% of net sales	11.6		%	12.5		%
Restructuring and impairment charges, net	26,247			34,120			(7,873)		(23.1)	%
Strategic development and acquisition related costs	27,875			19,341			8,534		44.1	%
Interest expense	191,301			213,610			(22,309)		(10.4)	%
Net income (loss)	665,859			(482,778)			1,148,637		(237.9)	%

Net sales - Consolidated net sales for the year ended December 31, 2021 increased by approximately 20.9%, as compared to the year ended December 31, 2020. The increase was primarily due to favorable price actions taken in all segments to offset commodity inflation, higher volume mainly from increased demand in the residential end markets, and an increase from acquisitions ($113.2 million in the Windows segment from Prime and Cascade and $21.9 million in the Commercial segment from UCC).

Gross profit % of net sales - The Company’s gross profit percentage was 21.5% for the year ended December 31, 2021, which was a 120 basis point decrease from the year ended December 31, 2020. The manufacturing inefficiencies and higher costs to serve our customers that were brought on by supply chain disruptions and labor constraints drove the decrease in gross profit as a percentage of net sales. This reduction was partially offset by positive price mix net of inflation.

Selling, general, and administrative expenses increased 12.1% during the year ended December 31, 2021, compared to the year ended December 31, 2020. The return of near-term costs, such as variable compensation, professional services, and sales commissions drove the higher selling, general, and administrative expenses at December 31, 2021 as compared to December 31, 2020.

Restructuring and impairment charges, net decreased $7.9 million during the year ended December 31, 2021, compared to the year ended December 31, 2020, primarily due to asset impairments in 2021 which were lower in total than the restructuring charges taken in 2020 in response to the COVID-19 pandemic.

Strategic development and acquisition related costs increased $8.5 million, during the year ended December 31, 2021 compared to the year ended December 31, 2020 as our merger-related activities increased as a result of strategic portfolio rationalization actions to accelerate long-term value creation.

Interest expense decreased $22.3 million or 10.4% in 2021, primarily as a result of the redemption of the $645 million 8.00% Senior Notes coupled with the refinancing of the Current Term Loan Facility.

Consolidated provision (benefit) for income taxes was an expense of $236.0 million for the year ended December 31, 2021 compared to an expense of $5.6 million for the year ended December 31, 2020. The effective tax rate for the year ended December 31, 2021 was 26.2% compared to 1.2% for the year ended December 31, 2020. The change in the effective tax rate was primarily driven by the divestitures and improved financial results for the year ended December 31, 2021, and the impact associated with the goodwill impairment recorded during the year ended December 31, 2020.

Net Income (loss) - Net income was $665.9 million or $5.19 per diluted share. Effective execution of our priorities, which included maintaining cost discipline, strengthening price leadership, driving operational excellence and investing in growth opportunities delivered improved profitability in 2021 (excluding the impact of the gain on sales from the divestitures in 2021 and the impact of the goodwill impairment in 2020).

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Segment Results of Operations

We report our segment information in the same way management internally organizes the business in assessing performance and making decisions regarding allocation of resources in accordance with ASC 280, Segment Reporting. We have determined that we have three reportable segments, organized and managed principally by the different industry sectors they serve. While the segments often operate using shared infrastructure, each reportable segment is managed to address specific customer needs in these diverse market sectors. We report all other business activities in Corporate and unallocated costs. Corporate assets consist primarily of cash, investments, prepaid expenses, current and deferred taxes and property, plant and equipment associated with our headquarters in Cary, North Carolina and office in Houston, Texas. These items (and income and expenses related to these items) are not allocated to the operating segments. Corporate unallocated expenses primarily include share-based compensation expenses, restructuring charges, acquisition costs, and other expenses related to executive, legal, finance, tax, treasury, human resources, information technology and strategic sourcing, and corporate travel expenses. Additional unallocated amounts primarily include non-operating items such as interest income, interest expense, loss on extinguishment of debt and other income (expense).

One of the primary measurements used by management to measure the financial performance of each segment is Adjusted EBITDA, a non-GAAP financial measure. We define Adjusted EBITDA as net income (loss), adjusted for the following items: income tax (benefit) expense; depreciation and amortization; interest expense, net; restructuring and impairment charges; strategic development and acquisition related costs; gain on divestitures; goodwill impairment; share-based compensation expense; non-cash foreign exchange transaction/translation (income) loss; other non-cash items; and other items.

The presentation of segment results below includes a reconciliation of the changes for each segment reported in accordance with U.S. GAAP to a pro forma basis to allow investors and the Company to meaningfully evaluate the percentage change on a comparable basis from period to period. The pro forma financial information is based on the historical information of Cornerstone Building Brands, which includes historical information of Kleary Masonry, Inc. (“Kleary”), which the Company acquired on March 2, 2020; Prime Windows LLC (“Prime Windows”), which the Company acquired on April 30, 2021; Cascade Windows, Inc. (“Cascade Windows”), which the Company acquired on August 20, 2021; and the insulated metals panels (“IMP”) and the roll-up sheet doors (“DBCI”) businesses, which the Company divested on August 9, 2021 and August 18, 2021, respectively. The pro forma financial information does not give effect to the potential impact of current financial conditions, any anticipated synergies, operating efficiencies or cost savings that may result from the Kleary, Prime Windows and Cascade Windows acquisitions; or any integration costs; and from the IMP and DBCI divestitures. Pro forma balances are not necessarily indicative of operating results had the Kleary, Prime Windows and Cascade Windows acquisitions and the IMP and DBCI divestitures occurred on January 1, 2020 or of future results. UCC, which was acquired on December 3, 2021, is only included from the acquisition date as pro forma results would comprise substantially all of the comparative periods and would not be meaningful for comparison.

See Note 22 — Segment Information in the notes to the consolidated financial statements for more information on our segments.

NON-GAAP FINANCIAL MEASURES

Set forth below are certain “non-GAAP financial measures” as defined under the Securities Exchange Act of 1934. Management believes the use of such non-GAAP financial measures assists investors in understanding the ongoing operating performance of the Company by presenting the financial results between periods on a more comparable basis. Such non-GAAP financial measures should not be construed as an alternative to reported results determined in accordance with U.S. GAAP. We have included reconciliations of these non-GAAP financial measures to the most directly comparable financial measures calculated and provided in accordance with U.S. GAAP.

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The following tables present a comparison of net sales as reported to pro forma net sales for Cornerstone Building Brands as if the Cascade Windows, Prime Windows and Kleary acquisitions, and IMP and DBCI divestitures had each occurred on January 1, 2020 rather than the respective date referenced above for each transaction. UCC’s results are only included from the acquisition date as discussed above.

	Year Ended December 31, 2021						Year Ended December 31, 2020
	Reported		Acquisitions and Divestitures		Pro Forma		Reported		Acquisitions and Divestitures		Pro Forma
Net Sales
Windows	$	2,322,277	$	132,141	$	2,454,418	$	1,889,625	$	206,639	$	2,096,264
Siding	1,364,080		—		1,364,080		1,141,946		8,358		1,150,304
Commercial	1,896,780		(231,347)		1,665,433		1,585,798		(375,261)		1,210,537
Total Net Sales	$	5,583,137	$	(99,206)	$	5,483,931	$	4,617,369	$	(160,264)	$	4,457,105

The following tables reconcile Adjusted EBITDA and pro forma Adjusted EBITDA to operating income (loss) for the periods indicated.

Consolidated
	Year Ended
(Amounts in thousands)	December 31, 2021			December 31, 2020
Net sales	$	5,583,137		$	4,617,369
Impact of acquisitions and divestitures(1)	(99,206)			(160,264)
Pro forma net sales	$	5,483,931		$	4,457,105
Operating income (loss), GAAP	$	1,137,245		$	(266,506)
Restructuring and impairment charges, net	26,247			34,277
Strategic development and acquisition related costs	27,875			19,341
Gain on divestitures	(831,252)			—
Goodwill impairment	—			503,171
Depreciation and amortization	292,901			284,602
Other (2)	42,919			31,919
Adjusted EBITDA	695,935			606,804
Impact of acquisitions and divestitures(1)	(7,953)			(52,223)
Pro forma Adjusted EBITDA	$	687,982		$	554,581
Adjusted EBITDA as a % of net sales	12.5		%	13.1		%
Pro forma Adjusted EBITDA as a % of pro forma net sales	12.5		%	12.4		%

(1)Reflects the acquisition from January 1, 2020 of the net sales and Adjusted EBITDA of Kleary through March 1, 2020, Prime Windows through April 29, 2021 and Cascade Windows through August 19, 2021; and reflects the impact from January 1, 2020 of the divestitures of IMP and DBCI through the divestiture dates of August 9, 2021 and August 18, 2021, respectively.

(2)Primarily consists of $29.0 million and $17.1 million of share-based compensation expense for the years ended December 31, 2021 and 2020, respectively; $11.6 million in costs for the year ended December 31, 2021 associated with debt refinancing transactions; and $(0.4) million and $12.5 million of COVID-19 pandemic related costs for years ended December 31, 2021 and 2020, respectively.

Pro forma net sales for the year ended December 31, 2021 increased $1,026.8 million, a 23.0% improvement over pro forma net sales in the same period a year ago. Disciplined price actions in response to rising commodity costs and other inflationary impacts across all segments drove approximately 75% of the increase. Rapid recovery of residential demand drove increased volume within the Windows and Siding segments of approximately $210 million, and non-residential demand drove increased volume in the Commercial segment of approximately $48 million.

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Operating income (loss) for the year ended December 31, 2021 increased to $1,137.2 million income as compared to an operating loss of $266.5 million in the year ended December 31, 2020 primarily as a result of the gain on the sales of the IMP and DBCI businesses of $831.3 million in 2021 and the goodwill impairment of $503.2 million in the comparable period.

Pro forma Adjusted EBITDA for 2021 was $688.0 million or 12.5% of pro forma net sales, an improvement of 24.1% or 10 basis points from the same pro forma period a year ago. The improvement was primarily driven by positive price mix net of inflation of $210 million and higher demand of $85 million, mostly from the rapid recovery in the residential end markets. Partially reducing these favorable impacts were manufacturing inefficiencies and higher costs to serve our customers as a result of the challenges brought on by supply chain disruptions and labor constraints of $93 million. SG&A costs were $69 million higher than the same pro forma period last year primarily due to the return of near-term costs, such as variable compensation, professional services, and sales commissions.

Windows
	Year Ended
(Amounts in thousands)	December 31, 2021			December 31, 2020
Net sales	$	2,322,277		$	1,889,625
Impact of acquisitions(1)	132,141			206,639
Pro forma net sales	$	2,454,418		$	2,096,264
Operating income (loss), GAAP	$	100,725		$	(223,646)
Restructuring and impairment charges, net	1,252			7,499
Strategic development and acquisition related costs	2,976			16
Goodwill impairment	—			320,990
Depreciation and amortization	134,626			121,519
Other	(88)			7,338
Adjusted EBITDA	239,491			233,716
Impact of acquisitions(1)	15,314			25,740
Pro forma Adjusted EBITDA	$	254,805		$	259,456
Adjusted EBITDA as a % of net sales	10.3		%	12.4		%
Pro forma Adjusted EBITDA as a % of pro forma net sales	10.4		%	12.4		%

(1)Reflects the impact of the net sales and Adjusted EBITDA of Prime Windows LLC through April 29, 2021 and Cascade Windows Inc. through August 19, 2021 as if the acquisitions had occurred on January 1, 2020.

Pro forma net sales for the year ended December 31, 2021 were 17.1% higher compared to the year ended December 31, 2020 due to 9.0% from disciplined price actions in response to rising commodity costs and other inflationary impacts coupled with approximately 8.1% increase in sales volume as a result of the rapid recovery within the residential end markets in the U.S. and Canada.

Operating income (loss) for the year ended December 31, 2021 was $100.7 million of operating income as compared to an operating loss of $223.6 million in the year ended December 31, 2020 primarily due to the goodwill impairment of $321.0 million in the comparable year.

Pro forma Adjusted EBITDA was $254.8 million or 10.4% of pro forma net sales, a 200 basis point decline over the year ended December 31, 2020. Positive price mix net of inflation of $22.8 million and higher demand of $46.6 million, mostly from the rapid recovery in the residential end markets, were partially offset by manufacturing inefficiencies and higher costs to serve our customers as a result of the challenges brought on by supply chain disruptions and labor constraints of $61.3

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million. SG&A costs were $12.8 million higher than the same pro forma period last year primarily due to the return of near-term costs, such as variable compensation, professional services, and sales commissions.

Siding
	Year Ended
(Amounts in thousands)	December 31, 2021			December 31, 2020
Net sales	$	1,364,080		$	1,141,946
Impact of acquisition(1)	—			8,358
Pro forma net sales	$	1,364,080		$	1,150,304
Operating income (loss), GAAP	$	137,772		$	(61,930)
Restructuring and impairment charges, net	14,226			2,966
Strategic development and acquisition related costs	(2,974)			10,158
Goodwill impairment	—			176,774
Depreciation and amortization	116,660			113,737
Other	(13)			(523)
Adjusted EBITDA	265,671			241,182
Impact of acquisition(1)	—			1,869
Pro forma Adjusted EBITDA	$	265,671		$	243,051
Adjusted EBITDA as a % of net sales	19.5		%	21.1		%
Pro forma Adjusted EBITDA as a % of pro forma net sales	19.5		%	21.1		%

(1)Reflects the impact of the net sales and Adjusted EBITDA of Kleary Masonry, Inc. through March 1, 2020 as if the acquisition had occurred on January 1, 2020.

Net sales for the year ended December 31, 2021 were 18.6% higher compared to the pro forma net sales for the year ended December 31, 2020. The rapid recovery of residential demand contributed 3.4% of the favorable increase, while disciplined price actions to offset inflationary raw material costs resulted in favorable price mix of approximately 15.1% versus the pro forma prior year.

Operating income for the year ended December 31, 2021 increased to $137.8 million as compared to an operating loss of $(61.9) million for the year ended December 31, 2020 primarily due to a goodwill impairment of $176.8 million in the year ended December 31, 2020. Excluding the 2020 goodwill impairment of $176.8 million and a 2021 asset impairment of $13.9 million related to a discontinued product line, operating income increased 32.1% in 2021 primarily due to disciplined price actions net of inflation of $40.0 million, favorable volume of $12.2 million and lower strategic development costs, offsetting higher costs in manufacturing and SG&A.

Pro Forma Adjusted EBITDA was $265.7 million or 19.5% of pro forma net sales, a 160 basis point decline over the year ended December 31, 2020. As mentioned above, positive price mix net of inflation and higher volume partially offset increased manufacturing costs to serve our customers and inefficiencies from supply chain disruptions of $16.7 million and an increase in SG&A of $12.8 million from return of near-term costs, such as variable compensation and professional service expenses.

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Commercial
	Year Ended
(Amounts in thousands)	December 31, 2021			December 31, 2020
Net Sales	$	1,896,780		$	1,585,798
Impact of divestitures(1)	(231,347)			(375,261)
Pro forma net sales	$	1,665,433		$	1,210,537
Operating income, GAAP	$	1,104,335		$	159,586
Restructuring and impairment charges, net	10,131			20,270
Strategic development and acquisition related costs	3,103			(262)
Gain on divestitures	(831,252)			—
Goodwill impairment	—			5,407
Depreciation and amortization	36,282			45,213
Other	934			4,346
Adjusted EBITDA	323,533			234,560
Impact of divestitures(1)	(23,267)			(79,832)
Pro forma Adjusted EBITDA	$	300,266		$	154,728
Adjusted EBITDA as a % of net sales	17.1		%	14.8		%
Pro forma Adjusted EBITDA as a % of pro forma net sales	18.0		%	12.8		%

(1)Reflects the net adjustments of IMP and DBCI through the divestiture dates of August 9, 2021 and August 18, 2021, respectively, as if the divestitures had occurred on January 1, 2020.

Pro forma net sales for the year ended December 31, 2021 were higher by 37.6% compared to the year ended December 31, 2020 driven approximately by a 33.7% increase from disciplined price actions to mitigate rising steel costs. Additionally, higher volumes of 3.9% from recovering demand in the non-residential end markets also contributed to the increase in net sales. Included in pro forma net sales at December 31, 2021 are $21.9 million of net sales from Union Corrugating Company Holdings, Inc. (“UCC”) from the acquisition date on December 3, 2021. The UCC acquisition furthers our presence in the high-growth residential metal roofing market.

Operating income for the year ended December 31, 2021 increased $944.7 million compared to year ended December 31, 2020 primarily due to the gain on the sales of the IMP and DBCI businesses as a result of strategic portfolio rationalization actions to accelerate long-term value creation. Excluding the gain on the sales in 2021 and the goodwill impairment in 2020, operating income of $273.1 million increased 65.5% primarily from the realization of price actions taken to offset rising steel and other inflationary impacts. Additionally, higher volume of $26 million from recovering non-residential end markets offset manufacturing inefficiencies from steel constraints and higher SG&A costs. Included in operating income at December 31, 2021 is $1.8 million from UCC from the acquisition date.

Pro forma Adjusted EBITDA was $300.3 million or 18.0% of pro forma net sales, a 520 basis point improvement compared to the year ended December 31, 2020. Included in pro forma EBITDA at December 31, 2021 is $2.2 million from UCC from the acquisition date. As mentioned above, positive price mix net of inflation of approximately $147.6 million and higher volume of $26.3 million offset manufacturing inefficiencies of $14.7 million and higher SG&A costs of $13.6 million.

Unallocated Operating Loss

	Year Ended
(Amounts in thousands)	December 31, 2021		December 31, 2020
Statement of operations data:
SG&A expenses	$	(180,817)	$	(131,087)
Strategic development and acquisition related costs	(24,770)		(9,429)
Operating loss	$	(205,587)	$	(140,516)

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Unallocated (Corporate expenses) operating losses include items that are not directly attributed to or allocated to our reporting segments. Such items include legal costs, corporate payroll, and unallocated finance and accounting expenses. The unallocated operating loss for the year ended December 31, 2021 increased by $65.1 million or 46.3% compared to the year ended December 31, 2020. The change is primarily due to the increase in strategic development expenses as well as debt issuance costs and the return of near-term expenses such as variable compensation and professional services. Unallocated operating loss includes $29.0 million and $17.1 million of share-based compensation expense for the years ended December 31, 2021 and 2020, respectively.

LIQUIDITY AND CAPITAL RESOURCES

General

Our ongoing principal source of funds is cash generated from operations, supplemented by borrowings against our asset-based lending and revolving credit facility, as necessary. We typically invest our excess cash in various overnight investments that are issued or guaranteed by the U.S. federal government. Our cash, cash equivalents and restricted cash decreased from $680.5 million as of December 31, 2020 to $396.7 million as of December 31, 2021. The following table summarizes our consolidated cash flows for fiscal 2021 and 2020 (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020
Net cash provided by (used in) operating activities	$	(215,887)	$	308,417
Net cash provided by (used in) investing activities	549,466		(120,123)
Net cash provided by (used in) financing activities	(617,249)		389,655
Effect of exchange rate changes on cash and cash equivalents	(150)		222
Net increase (decrease) in cash, cash equivalents and restricted cash	(283,820)		578,171
Cash, cash equivalents and restricted cash at beginning of period	680,478		102,307
Cash, cash equivalents and restricted cash at end of period	$	396,658	$	680,478

Operating Activities

The Company used cash in operating activities during the year ended December 31, 2021 to invest in working capital items to support strong market demand.

The following table shows the impact of working capital items on cash during fiscal 2021 and 2020, respectively (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		$ Change
Net cash (used in) provided by:
Accounts receivable	$	(156,066)	$	(61,976)	$	(94,090)
Inventories	(311,242)		7,927		(319,169)
Accounts payable	72,260		4,663		67,597
Net cash used in working capital items	$	(395,048)	$	(49,386)	$	(345,662)

The use of cash for working capital between periods was driven by investments in net working capital to support the strong demand environment and increased inventory valuations from higher commodity costs and other inflationary aspects. See the Consolidated Statements of Cash Flows in the consolidated financial statements for additional information.

Investing Activities

Cash provided by investing activities was $549.5 million during fiscal 2021 compared to $120.1 million used during fiscal 2020. During fiscal 2021, we paid approximately $528.3 million (net of cash acquired) toward acquisitions, primarily for the acquisitions of UCC, Cascade Windows and Prime Windows; received proceeds of $1,187.3 million from the divestitures of our insulated metal panels and roll-up sheet doors businesses; received proceeds of $5.1 million from the sale of PP&E, and used $114.7 million for capital expenditures. During fiscal 2020, we paid approximately $41.8 million (net of

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cash acquired) for the acquisition of Kleary, used $81.9 million for capital expenditures, and received proceeds of $3.6 million from the sale of PP&E.

Financing Activities

Cash used in financing activities was $617.2 million in fiscal 2021 compared to $389.7 million provided by financing activities in fiscal 2020. During fiscal 2021, we increased our Current Term Loan Facility by $108.4 million, borrowed and then repaid $190.0 million on our Current ABL Facility, paid $670.8 million to redeem the 8.00% Senior Notes, and paid quarterly installments totaling $25.9 million on the Current Term Loan Facility.

During fiscal 2020, we issued $500.0 million in aggregate principal amount of 6.125% Senior Notes due January 2029, borrowed $40.0 million on our Existing ABL Facility to finance the acquisition of Kleary, borrowed an additional $305.0 million on our Existing ABL Facility and repaid all outstanding ABL Facility balances at December 31, 2020, and borrowed and repaid $115.0 million on our Existing Cash Flow Revolver balances. Proceeds from the offering of the 6.125% Senior Notes were used to pay down the Existing ABL Facility and Existing Cash Flow Revolver balances. Additionally, during fiscal 2020, we paid quarterly installments totaling $25.6 million on our Term Loan Facility and used $6.4 million to repurchase shares of our outstanding common stock under our stock repurchase programs.

Equity Investment

On August 25, 2020, the Company filed a shelf registration statement on Form S-3, declared effective by the SEC on September 2, 2020, registering the resale of shares of the Company’s common stock held by CD&R Pisces. The Company had previously registered the resale of shares of the Company’s common stock held by the CD&R Fund VIII Investor Group and the Golden Gate Investor Group.

At December 31, 2021 and 2020, the CD&R Investor Group owned approximately 48.8% and 49.4%, respectively, of the outstanding shares of our Common Stock.

Debt

Below is a reconciliation of the Company's net debt (in thousands). Management considers net debt to be more representative of the Company's financial position than total debt due to the amount of cash and cash equivalents held by the Company and the ability to utilize cash and cash equivalents to reduce debt if needed.

	Year Ended
	December 31, 2021		December 31, 2020
Asset-based revolving credit facility due April 2026	$	—	$	—
Term loan facility due April 2028	2,580,500		2,497,967
Cash flow revolver due April 2026	—		—
8.00% senior notes due April 2026	—		645,000
6.125% senior notes due January 2029	500,000		500,000
Total Debt	3,080,500		3,642,967
Less: cash and cash equivalents	394,447		674,255
Net Debt	$	2,686,053	$	2,968,712

On April 15, 2021, the Company redeemed its $645 million aggregate principal amount of 8.00% Senior Notes using available cash from the balance sheet and net proceeds from its extended and upsized senior term loan facility. The Company successfully upsized and extended the maturity of its $2,492 million senior term loan facility due 2025 in the form of $2,600 million in Tranche B term loans due April 12, 2028. Additionally, the Company amended and refinanced its senior cash flow based and asset-based revolving credit facilities, extending the maturities to April 12, 2026.

In connection with the new Tranche B term loans, the Company also terminated two interest rate swaps and entered into two new swaps maturing in April 2026 on an aggregate notional value of $1.5 billion. The interest rate swaps effectively convert a portion of the floating rate interest payment into a fixed rate interest payment.

We may not be successful in refinancing, extending the maturity or otherwise amending the terms of our outstanding indebtedness in the future because of market conditions, disruptions in the debt markets, our financial performance or other reasons. Furthermore, the terms of any refinancing, extension or amendment may not be as favorable as the current terms of our indebtedness. If we are not successful in refinancing our indebtedness or extending its maturity, we and our subsidiaries

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could face substantial liquidity problems and may be forced to reduce or delay capital expenditures, sell assets, seek additional capital or restructure our indebtedness.

For additional information, see Note 13 — Long-Term Debt and Note 14 — Derivatives in the notes to the consolidated financial statements.

Additional Liquidity Considerations

We periodically evaluate our liquidity requirements, capital needs and availability of resources in view of inventory levels, expansion plans, debt service requirements and other operating cash needs. To meet our short-term and long-term liquidity requirements, including payment of operating expenses and repayment of debt, we rely primarily on cash from operations. The following table summarizes key liquidity measures under the Current ABL Credit Agreement and the Current Cash Flow Credit Agreement in effect as of December 31, 2021 and 2020 (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020
Asset-based revolving credit facility due April 2026	$	611,000	$	611,000
Eligible borrowing base	611,000		568,000
Less: Borrowings	—		—
Less: LCs outstanding and priority payables	45,000		40,000
Net ABL availability	566,000		528,000
Plus: Cash flow revolver due April 2026	115,000		115,000
Plus: cash and cash equivalents	394,447		674,255
Total Liquidity	$	1,075,447	$	1,317,255

On April 15, 2021, the Company redeemed its $645 million aggregate principal amount of 8.00% Senior Notes, as noted above, which reduced total liquidity. We expect that cash generated from operations and our availability under the ABL Credit Facility and Current Cash Flow Revolver will be sufficient to provide us the ability to fund our operations and to provide the increased working capital necessary to support our strategy and fund planned capital expenditures for fiscal 2022 and expansion when needed.

Consistent with our growth strategy, we evaluate potential acquisitions that would provide additional synergies in our Windows, Siding and Commercial segments. From time to time, we may enter into letters of intent or agreements to acquire assets or companies in these segments. The consummation of these transactions could require substantial cash payments and/or issuance of additional debt.

On April 30, 2021, the Company acquired Prime Windows. Prime Windows serves residential new construction and repair and remodel markets with energy efficient vinyl window and door products from two manufacturing facilities in the United States, expanding our manufacturing capabilities and creating new opportunities for us in the Western United States. This acquisition was funded through borrowings under the Company’s existing credit facilities.

On August 20, 2021, the Company acquired Cascade Windows. Cascade Windows serves the residential new construction and repair and remodel markets with energy efficient vinyl window and door products from various manufacturing facilities in the United States, expanding our manufacturing capabilities and creating new opportunities for us in the Western United States. This acquisition was funded with cash available on the balance sheet.

On December 3, 2021, the Company acquired Union Corrugating Company Holdings, Inc. (“UCC”). UCC provides metal roofing, roofing components and accessories from locations primarily in the Central and Eastern U.S. regions. This acquisition was funded with cash available on the balance sheet.

We also evaluate possible dispositions of assets or businesses when such assets or businesses are no longer core to our operations and do not fit into our long-term strategy. On August 9, 2021, the Company completed the sale of its insulated metal panels (“IMP”) business to Nucor Insulated Panel Group Inc. and certain of its subsidiaries (collectively, “Nucor”) in a cash transaction for $1 billion. The IMP transaction included products sold under the Metl-Span and CENTRIA brands. On August 18, 2021, the Company completed the sale of its roll-up sheet doors business to Janus International Group, Inc. (“Janus”) in a cash transaction for $169 million. The roll-up sheet doors transaction included products sold under the DBCI brand.

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From time to time, we have used available funds to repurchase shares of our common stock under our stock repurchase program. On March 7, 2018, we announced that our Board of Directors authorized a new stock repurchase program for the repurchase of up to an aggregate of $50.0 million of our outstanding Common Stock. Under this repurchase program, we are authorized to repurchase shares at times and in amounts that we deem appropriate in accordance with all applicable securities laws and regulations. Shares repurchased are usually retired. There is no time limit on the duration of the program. During fiscal 2021, we did not repurchase shares under the stock repurchase program. As of December 31, 2021, approximately $49.1 million remained available for stock repurchases under the program. In addition to repurchases of shares of our common stock under our stock repurchase program, we also withhold shares of restricted stock to satisfy minimum tax withholding obligations arising in connection with the vesting of awards of share-based compensation.

We may from time to time take steps to reduce our debt or otherwise improve our financial position. These actions could include prepayments, open market debt repurchases, negotiated repurchases, other redemptions or retirements of outstanding debt, opportunistic refinancing of debt and raising additional capital. The amount of prepayments or the amount of debt that may be refinanced, repurchased or otherwise retired, if any, will depend on market conditions, trading levels of our debt, our cash position, compliance with debt covenants and other considerations. Our affiliates may also purchase our debt from time to time through open market purchases or other transactions. In such cases, our debt may not be retired, in which case we would continue to pay interest in accordance with the terms of the debt, and we would continue to reflect the debt as outstanding on our consolidated balance sheets.

CONTINGENT LIABILITIES AND COMMITMENTS

Our insurance carriers require us to secure standby letters of credit as a collateral requirement for our projected exposure to future period claims growth and loss development, including IBNR claims. For all insurance carriers, the total standby letters of credit are approximately $31.9 million and $27.2 million at December 31, 2021 and 2020, respectively.

CRITICAL ACCOUNTING ESTIMATES

Our consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States, which require us to make estimates and assumptions that affect the reported amounts of assets and liabilities and related disclosure of contingent assets and liabilities. On an ongoing basis, we evaluate our estimates, including those estimates that may have a significant effect on our financial condition and results of operations. Our significant accounting policies are disclosed in Note 2 to our consolidated financial statements. The following discussion of critical accounting policies addresses those policies that are both important to the portrayal of our financial condition and results of operations and require significant judgment and estimates. We base our estimates and judgment on historical experience and on various other factors that are believed to be reasonable under the circumstances. Actual results may differ from these estimates under different assumptions or conditions.

Accounting for acquisitions, intangible assets and goodwill. Accounting for the acquisition of a business requires the allocation of the purchase price to the various assets and liabilities of the acquired business. For most assets and liabilities, purchase price allocation is accomplished by recording the asset or liability at its estimated fair value. The most difficult estimations of individual fair values are those involving property, plant and equipment and identifiable intangible assets. We use all available information to make these fair value determinations and, for major business acquisitions, typically engage an outside appraisal firm to assist in the fair value determination of the acquired long-lived assets.

The Company has approximately $1,358.1 million of goodwill as of December 31, 2021, of which approximately $541.2 million pertains to our Windows segment, $655.1 million pertains to our Siding segment, and $161.8 million pertains to our Commercial segment. We perform an annual impairment assessment of goodwill. Additionally, we assess goodwill for impairment whenever events or changes in circumstances indicate that the fair values may be below the carrying values of the reporting units. Unforeseen events, changes in circumstances and market conditions and material differences in the value of intangible assets due to changes in estimates of future cash flows could negatively affect the fair value of our assets and result in a non-cash impairment charge. Some factors considered important that could trigger an impairment review include the following: significant underperformance relative to expected historical or projected future operating results, significant changes in the manner of our use of the acquired assets or the strategy for our overall business and significant sustained negative industry or economic trends, such as the COVID-19 pandemic.

The fair value of our reporting units is based on a blend of estimated discounted cash flows and publicly traded company multiples. A significant reduction in projected sales and earnings which would lead to a reduction in future cash flows could indicate potential impairment. The results from each of these models are then weighted and combined into a single estimate of fair value for our reporting units. Estimated discounted cash flows are based on projected sales and related cost of sales. Publicly traded company multiples and acquisition multiples are derived from information on traded shares and analysis of recent acquisitions in the marketplace, respectively, for companies with operations similar to ours. The primary assumptions used in these various models include earnings multiples of acquisitions in a comparable industry, future cash flow estimates

44

of each of the reporting units, weighted average cost of capital, working capital and capital expenditure requirements. Management does not believe the estimates used in the analysis are reasonably likely to change materially in the future, but we will continue to assess the estimates in the future based on the expectations of the reporting units. Changes in assumptions used in the fair value calculation could result in an estimated reporting unit fair value that is below the carrying value, which may result in an impairment of goodwill.

We completed our annual goodwill impairment test as of October 3, 2021 for each of our reporting units with goodwill. We have the option of performing an assessment of certain qualitative factors to determine if it is more likely than not that the fair value of a reporting unit is less than its carrying value or proceeding directly to a quantitative impairment test. We elected to apply the quantitative assessment for the goodwill impairment test for our reporting units within each of our operating segments as of October 3, 2021.

A summary of the key assumptions utilized in the goodwill impairment analysis at October 3, 2021, as it relates to the fair values and the sensitivities for these assumptions follows:

	As of October 3, 2021
	Windows			Siding			Engineered Building Systems			Metal Components
Assumptions:
Income Approach:
Terminal growth rate	3.5		%	3.0		%	3.0		%	3.0		%
Discount rate	17.5		%	13.5		%	17.5		%	13.5		%
Market approach:
Control premium	0.0		%	0.0		%	10.0		%	10.0		%
Sensitivities
(in thousands)
Estimated fair value change in the event of a 1% decrease in the terminal year growth	$	58,698		$	118,932		$	26,843		$	28,149
Estimated fair value change in the event of a 1% decrease in the discount rate	$	124,389		$	226,792		$	50,247		$	44,064
Estimated fair value change in the event of a 1% decrease in the control premium	n/a			n/a			$	6,627		$	4,402

Overall, we utilize the same key assumptions in preparing the prospective financial information utilized in the discounted cash flow test for the reporting units. However, each reporting unit is impacted differently by industry trends, how market factors are influencing the reporting units’ expected performance, competition, and other unique business factors as mentioned above.

(in thousands)	As of October 3, 2021
Estimated Windows reporting unit fair value increase in the event of a 10% increase in the weighting of the market multiples method	$	8,920
Estimated Siding reporting unit fair value increase in the event of a 10% increase in the weighting of the market multiples method	$	34,190
Estimated Engineered Building Systems reporting unit fair value increase in the event of a 10% increase in the weighting of the market multiples method	$	2,480
Estimated Metal Components reporting unit fair value increase in the event of a 10% increase in the weighting of the market multiples method	$	6,530

The Company’s annual goodwill impairment tests performed as of October 3, 2021 indicated no impairment. The Company’s estimate of the fair value of its Windows, Siding, Engineered Building Systems, and Metal Components reporting units exceeded their carrying values by approximately 19%, 41%, 444%, and 172%, respectively.

We provide no assurance that: (1) valuation multiples will not decline, (2) discount rates will not increase, or (3) the earnings, book values or projected earnings and cash flows of our reporting units will not decline. We will continue to analyze changes to these assumptions in future periods. We will continue to evaluate goodwill during future periods and

45

future declines in the residential housing and remodel markets and nonresidential markets as well as economic conditions could result in future goodwill impairments.

Warranty. The Company sells a number of products and offers a number of warranties. The specific terms and conditions of these warranties vary depending on the product sold. The Company’s warranty liabilities are undiscounted and adjusted for inflation based on third party actuarial estimates. Factors that affect the Company’s warranty liabilities include the number of units sold, historical and anticipated rates of warranty claims, cost per claim and new product introduction. Warranties are normally limited to replacement or service of defective components for the original customer. Some warranties are transferable to subsequent owners and are generally limited to ten years from the date of manufacture or require pro-rata payments from the customer. A provision for estimated warranty costs is recorded based on historical experience and the Company periodically adjusts these provisions to reflect actual experience. Warranty costs are included within cost of goods sold. The Company assesses the adequacy of the recorded warranty claims and adjusts the amounts as necessary. Separately, upon the sale of a weathertightness warranty in the Commercial segment, the Company records the resulting revenue as deferred revenue, which is included in other accrued expenses and other long-term liabilities on the consolidated balance sheets depending on when the revenues are expected to be recognized.

Income taxes. The determination of our provision for income taxes requires significant judgment, the use of estimates and the interpretation and application of complex tax laws. The amount recorded in our consolidated financial statements reflects estimates of final amounts due to timing of completion and filing of actual income tax returns. Estimates are required with respect to, among other things, the potential utilization of operating and capital loss carry-forwards for federal, state, and foreign income tax purposes and valuation allowances required, if any, for tax assets that may not be realized in the future. We establish reserves when, despite our belief that our tax return positions are fully supportable, certain positions could be challenged, and the positions may not be fully sustained. Our provision for income taxes reflects a combination of income earned and taxed in the various U.S. federal and state, Canadian federal and provincial, Mexican federal, and other jurisdictions. Jurisdictional tax law changes, increases or decreases in permanent differences between book and tax items, accruals or adjustments of accruals for tax contingencies or valuation allowances, and the change in the mix of earnings from these taxing jurisdictions all affect the overall effective tax rate.

As of December 31, 2021, the $41.7 million net operating loss carryforward included $20.8 million for U.S federal losses, $13.3 million for U.S. state losses and $7.6 million for foreign losses. The state net operating loss carryforwards began to expire in 2021, if unused, and the federal and foreign loss carryforwards will begin to expire in fiscal 2029, if unused. There are limitations on the utilization of certain net operating losses.

RECENT ACCOUNTING PRONOUNCEMENTS

See Note 3 — Accounting Pronouncements in the notes to the consolidated financial statements for information on recent accounting pronouncements.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk.

Windows and Siding Businesses

We are subject to market risk with respect to the pricing of our principal raw materials, which include PVC resin, aluminum and glass. If prices of these raw materials were to increase dramatically, we may not be able to pass such increases on to our customers and, as a result, gross margins could decline significantly. We manage the exposure to commodity pricing risk by increasing our selling prices for corresponding material cost increases, continuing to diversify our product mix, strategic buying programs and vendor partnering. The average market price for PVC resin was estimated to have increased approximately 55.3% for the fiscal year ended December 31, 2021 as compared to the fiscal year ended December 31, 2020.

Commercial Business

We are subject to market risk exposure related to volatility in the price of steel. For the fiscal year ended December 31, 2021, material costs (predominantly steel costs) constituted approximately 67% of our Commercial segment cost of sales. Our business is heavily dependent on the price and supply of steel. Our various products are fabricated from steel produced by mills to forms including bars, plates, structural shapes, sheets, hot-rolled coils and galvanized or Galvalume®-coated coils (Galvalume® is a registered trademark of BIEC International, Inc.). The steel industry is highly cyclical in nature, and steel prices have been volatile in recent years and may remain volatile in the future. Steel prices are influenced by numerous factors beyond our control, including general economic conditions domestically and internationally, the availability of raw materials, competition, labor costs, freight and transportation costs, production costs, import duties and other trade restrictions. Based on the cyclical nature of the steel industry, we expect steel prices will continue to be volatile.

46

With material costs (predominantly steel costs) accounting for approximately 67% of our Commercial segment's cost of sales for fiscal 2021, a one percent change in the cost of steel could have resulted in a pre-tax impact on cost of sales of approximately $9.5 million for our fiscal year ended December 31, 2021. The impact to our financial results of operations of such an increase would be significantly dependent on the competitive environment and the costs of other alternative building products, which could impact our ability to pass on these higher costs.

Impact of Raw Material Prices

In the ordinary course of business, we are exposed to the volatility of the costs of our raw materials. Whenever possible, we manage our exposure to commodity risks primarily through the use of supplier pricing agreements that enable us to establish the purchase prices for certain inputs that are used in our manufacturing process. Generally, we have been able to pass on price increases to our customers. However, a timing effect can result in raw material spread whereby costs can be over- or under-recovered in certain periods.

Other Commodity Risks

In addition to market risk exposure related to the volatility in the price of our raw materials, we are subject to market risk exposure related to volatility in the price of natural gas. As a result, we occasionally enter into both index-priced and fixed-price contracts for the purchase of natural gas. We have evaluated these contracts to determine whether the contracts are derivative instruments. Certain contracts that meet the criteria for characterization as a derivative instrument may be exempted from hedge accounting treatment as normal purchases and normal sales and, therefore, these forward contracts are not marked to market. At December 31, 2021, all our contracts for the purchase of natural gas met the scope exemption for normal purchases and normal sales.

Interest Rates

We are subject to market risk exposure related to changes in interest rates on our Current Cash Flow Facilities and Current ABL Facility, which provides for borrowings of up to $2,715.0 million on the Current Cash Flow Facilities and up to $611.0 million on the Current ABL Facility. These instruments bear interest at an agreed upon percentage point spread from either LIBOR or an alternative rate. Assuming the Current Cash Flow Revolver is fully drawn, each quarter point increase or decrease in the interest rate would change our interest expense by approximately $6.8 million per year for the Current Cash Flow Facilities. Assuming the Current ABL Facility is fully drawn, each quarter point increase or decrease in the interest rate would change our interest expense by approximately $1.5 million per year. The fair value of our term loan credit facility at December 31, 2021 and 2020 was approximately $2,570.8 million and $2,485.5 million, respectively, compared to the face value of $2,580.5 million and $2,498.0 million, respectively. In April 2021, we entered into cash flow interest rate swap hedge contracts for a total notional amount of $1.5 billion to mitigate the exposure risk of our floating interest rate debt. The interest rate swaps effectively convert a portion of the floating rate interest payment into a fixed rate payment. At December 31, 2021, our cash flow hedge contracts had a fair value liability of $41.4 million with $28.3 million recorded as a non-current liability and $13.1 million recorded in accrued expenses on our consolidated balance sheet.

See Note 13 — Long-Term Debt and Note 14 — Derivatives in the notes to the consolidated financial statements for information on the material terms of our long-term debt and interest rate swaps.

Foreign Currency Exchange Rates

The functional currency for our Canadian operations is the Canadian dollar. Translation adjustments resulting from translating the functional currency financial statements into U.S. dollar equivalents are reported separately in accumulated other comprehensive income (loss) in stockholders’ equity. The net foreign currency exchange gains (losses) included in net income (loss) for fiscal 2021, 2020 and 2019 were $(3.1) million, $1.1 million and $1.2 million, respectively. Net foreign currency translation adjustment, net of tax, and included in other comprehensive income (loss) was $6.6 million, $17.3 million and $3.2 million for fiscal 2021, 2020 and 2019, respectively.

We are exposed to the effect of exchange rate fluctuations on the U.S. dollar value of foreign currency denominated operating revenue and expenses. The functional currency for our Mexico operations is the U.S. dollar. Adjustments resulting from the remeasurement of the local currency financial statements into the U.S. dollar functional currency, which uses a combination of current and historical exchange rates, are included in net income (loss) in the current period. Net foreign currency remeasurement gains (losses) were $(0.6) million, $0.2 million and $0.9 million for fiscal 2021, 2020 and 2019.

We have entered into foreign currency forward contracts with a financial institution to hedge primarily inventory purchases in Canada. At December 31, 2021, we have a total notional amount of approximately $37.8 million hedged at fixed USD/CAD rates ranging from 1.2120 to 1.2726 with value dates through September 2022. In the future, we may enter into additional foreign currency hedging contracts, to further mitigate the exposure risk of currency fluctuation against the

47

Canadian dollar and/or the Mexican Peso. See Note 14 — Derivatives in the notes to the consolidated financial statements for information on our currency hedges.

Labor Force Risk

Our manufacturing process is highly engineered but involves manual assembly, fabrication, and manufacturing processes. We believe that our success depends upon our ability to employ, train, and retain qualified personnel with the ability to design, utilize, and enhance these services and products. In addition, our ability to expand our operations depends in part on our ability to increase our labor force as the residential and nonresidential construction markets continue to recover and minimize labor inefficiencies. A significant increase in the wages paid by competing employers could result in a reduction of our labor force, increases in the wage rates that we must pay, or both. If either of these events were to occur, our cost structure could increase, our margins could decrease, and any growth potential could be impaired.

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Item 8. Financial Statements and Supplementary Data.

INDEX TO FINANCIAL STATEMENTS

Management’s Report on Internal Control Over Financial Reporting	50
Reports of Independent Registered Public Accounting Firm (PCAOB ID Number 248)	51
Financial Statements:
Consolidated Statements of Operations for the years ended December 31, 2021, 2020 and 2019	54
Consolidated Statements of Comprehensive Income (Loss) for the years ended December 31, 2021, 2020 and 2019	55
Consolidated Balance Sheets as of December 31, 2021 and 2020	56
Consolidated Statements of Cash Flows for the years ended December 31, 2021, 2020 and 2019	57
Consolidated Statements of Stockholders’ Equity for the years ended December 31, 2021, 2020 and 2019	58
Notes to the Consolidated Financial Statements	59

49

MANAGEMENT’S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING

Management of Cornerstone Building Brands, Inc. (the “Company” or “our”) is responsible for establishing and maintaining adequate internal control over financial reporting for the Company as defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934. The Company’s internal control system was designed to provide reasonable assurance to the Company’s management and Board of Directors regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with U.S. generally accepted accounting principles.

Internal control over financial reporting includes the controls themselves, monitoring (including internal auditing practices), and actions taken to correct deficiencies as identified.

Internal control over financial reporting has inherent limitations and may not prevent or detect misstatements. The design of an internal control system is also based in part upon assumptions and judgments made by management about the likelihood of future events, and there can be no assurance that an internal control will be effective under all potential future conditions. Therefore, even those systems determined to be effective can provide only reasonable, not absolute, assurance with respect to the financial statement preparation and presentation. Further, because of changes in conditions, the effectiveness of internal control over financial reporting may vary over time.

Management assessed the effectiveness of the Company’s internal control over financial reporting as of December 31, 2021. In making this assessment, management used the criteria for internal control over financial reporting described in Internal Control — Integrated Framework by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework). Management’s assessment included an evaluation of the design of the Company’s internal control over financial reporting and testing of the operating effectiveness of its internal control over financial reporting. Management reviewed the results of its assessment with the Audit Committee of the Company’s Board of Directors. Based on this assessment, management has concluded that, as of December 31, 2021, the Company’s internal control over financial reporting was effective.

We excluded Union Corrugating Company Holdings, Inc. (“UCC”), Cascade Windows Inc. (“Cascade Windows”), and Prime Windows LLC (“Prime Windows”) from our assessment of internal control over financial reporting as of December 31, 2021 as they were acquired by us during 2021. The total assets and revenues excluded from our assessment of internal control over financial reporting collectively were 10.9% and 2.4%, respectively, as of and for the year ended December 31, 2021.

Grant Thornton LLP, the independent registered public accounting firm that has audited the Company’s consolidated financial statements, has audited the effectiveness of the Company’s internal control over financial reporting as of December 31, 2021, as stated in their report included elsewhere herein.

50

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Board of Directors and Stockholders

Cornerstone Building Brands, Inc.

Opinion on internal control over financial reporting

We have audited the internal control over financial reporting of Cornerstone Building Brands, Inc. (a Delaware corporation) and subsidiaries (the “Company”) as of December 31, 2021, based on criteria established in the 2013 Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (“COSO”). In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2021, based on criteria established in the 2013 Internal Control—Integrated Framework issued by COSO.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (“PCAOB”), the consolidated financial statements of the Company as of and for the year ended December 31, 2021, and our report dated March 1, 2022 expressed an unqualified opinion on those financial statements.

Basis for opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Reports on Internal Control over Financial Reporting (“Management’s Report”). Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Our audit of, and opinion on, the Company’s internal control over financial reporting does not include the internal control over financial reporting of Union Corrugating Company Holdings, Inc., Cascade Windows Inc., and Prime Windows LLC, wholly-owned subsidiaries, whose financial statements reflect total assets and revenues constituting 10.9% and 2.4% percent, respectively, of the related consolidated financial statement amounts as of and for the year ended December 31, 2021. As indicated in Management’s Report, Union Corrugating Company Holdings, Inc., Cascade Windows Inc., and Prime Windows LLC were acquired during 2021. Management’s assertion on the effectiveness of the Company’s internal control over financial reporting excluded internal control over financial reporting of Union Corrugating Company Holdings, Inc., Cascade Windows Inc., and Prime Windows LLC.

Definition and limitations of internal control over financial reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ GRANT THORNTON LLP

Raleigh, North Carolina

March 1, 2022

51

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Board of Directors and Stockholders

Cornerstone Building Brands, Inc.

Opinion on the financial statements

We have audited the accompanying consolidated balance sheets of Cornerstone Building Brands, Inc. (a Delaware corporation) and subsidiaries (the “Company”) as of December 31, 2021 and December 31, 2020, the related consolidated statements of operations, comprehensive income, changes in stockholders’ equity, and cash flows for each of the three years in the period ended December 31, 2021, and the related notes (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2021 and December 31, 2020 and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2021, in conformity with accounting principles generally accepted in the United States of America.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (“PCAOB”), the Company’s internal control over financial reporting as of December 31, 2021, based on criteria established in the 2013 Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (“COSO”), and our report dated March 1, 2022 expressed an unqualified opinion.

Basis for opinion

These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical audit matters

The critical audit matters communicated below are matters arising from the current period audit of the financial statements that were communicated or required to be communicated to the audit committee and that: (1) relate to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.

Warranty liability

As described in Notes 2 and 12 to the consolidated financial statements, within the Windows and Siding segment the Company sells a number of products with warranties that do not have to be separately purchased by the customer. The specific terms and conditions of these warranties vary depending on the product sold. As these products are sold, the Company establishes a warranty liability for the cost of estimated warranty claims. Factors that affect the Company’s warranty liabilities include the number of units sold, historical and anticipated rates of warranty claims, cost per claim and new product introduction. We identified the calculation of these warranty liabilities as a critical audit matter.

The principal considerations for our determination that the calculation of these warranty liabilities are a critical audit matter is because of the specialized skills necessary to evaluate the Company’s actuarial models and judgments required to assess the underlying assumptions made by the Company. Key assumptions underlying the Company’s actuarial estimates include: paid loss development factors, exposure and loss trend factors, selected pure premiums, inflation adjustments and margin adjustments to account for the possibility that actual experience losses can be greater than the expected unpaid liability estimate.

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Our audit procedures related to warranty liabilities included the following, among others:

•We obtained an understanding, evaluated the design, and tested the operating effectiveness of controls over the warranty liability calculations that ensure management reviewed the actuarial analysis, related calculations and key assumptions.

•We utilized our actuarial specialists to evaluate the actuarial methodology used and in testing the paid loss development factors, exposure and loss trend factors, selected pure premiums, inflation adjustments and margin adjustments.

/s/ GRANT THORNTON LLP

We have served as the Company’s auditor since 2018.

Raleigh, North Carolina

March 1, 2022

53

CORNERSTONE BUILDING BRANDS, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per share data)

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Sales	$	5,583,137	$	4,617,369	$	4,889,747
Cost of sales	4,384,062		3,567,049		3,801,328
Gross profit	1,199,075		1,050,320		1,088,419
Selling, general and administrative expenses	649,472		579,200		627,861
Intangible asset amortization	189,488		180,994		177,577
Restructuring and impairment charges, net	26,247		34,120		18,060
Strategic development and acquisition related costs	27,875		19,341		50,185
Gain on divestitures	(831,252)		—		—
Goodwill impairment	—		503,171		—
Income (loss) from operations	1,137,245		(266,506)		214,736
Interest income	205		1,364		674
Interest expense	(191,301)		(213,610)		(229,262)
Foreign exchange gain (loss)	(3,749)		1,068		2,054
Loss on extinguishment of debt	(42,234)		—		—
Other income, net	1,661		469		1,183
Income (loss) before income taxes	901,827		(477,215)		(10,615)
Provision for income taxes	235,968		5,563		4,775
Net income (loss)	$	665,859	$	(482,778)	$	(15,390)
Net income allocated to participating securities	(7,815)		—		—
Net income (loss) applicable to common shares	$	658,044	$	(482,778)	$	(15,390)
Income (loss) per common share:
Basic	$	5.22	$	(3.84)	$	(0.12)
Diluted	$	5.19	$	(3.84)	$	(0.12)
Weighted average number of common shares outstanding:
Basic	126,058		125,562		125,576
Diluted	126,795		125,562		125,576

See accompanying notes to the consolidated financial statements.

54

CORNERSTONE BUILDING BRANDS, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(In thousands)

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Comprehensive income (loss):
Net income (loss)	$	665,859	$	(482,778)	$	(15,390)
Other comprehensive income (loss), net of tax:
Foreign exchange translation gains (losses)	6,594		17,254		3,211
Unrealized gain (loss) on derivative instruments, net of income tax of $(12,063), $10,985, and $7,176, respectively	14,054		(35,281)		(22,812)
Unrecognized actuarial gains (losses) on pension obligation, net of income tax of $(3,195), $231, and $513, respectively	4,093		(1,092)		(1,984)
Amount reclassified from Accumulated other comprehensive income (loss) into earnings	21,164		—		—
Other comprehensive income (loss)	45,905		(19,119)		(21,585)
Comprehensive income (loss)	$	711,764	$	(501,897)	$	(36,975)

See accompanying notes to the consolidated financial statements.

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CORNERSTONE BUILDING BRANDS, INC.
CONSOLIDATED BALANCE SHEETS
(In thousands, except share data)
	December 31, 2021		December 31, 2020
ASSETS
Current assets:
Cash and cash equivalents	$	394,447	$	674,255
Restricted cash	2,211		6,223
Accounts receivable, net	685,316		554,649
Inventories, net	748,732		431,937
Income taxes receivable	14,514		39,379
Investments in debt and equity securities, at market	2,759		2,333
Prepaid expenses and other	135,701		77,751
Assets held for sale	3,400		4,644
Total current assets	1,987,080		1,791,171
Property, plant and equipment, net	612,295		631,821
Lease right-of-use assets	322,608		264,107
Goodwill	1,358,056		1,194,729
Intangible assets, net	1,524,635		1,584,604
Deferred income taxes	1,839		1,867
Other assets, net	20,947		10,191
Total assets	$	5,827,460	$	5,478,490
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Current portion of long-term debt	$	26,000	$	25,600
Accounts payable	311,737		211,441
Accrued compensation and benefits	101,164		81,548
Accrued interest	19,775		25,485
Accrued income taxes	3,220		5,060
Current portion of lease liabilities	73,150		70,125
Other accrued expenses	320,389		247,893
Total current liabilities	855,435		667,152
Long-term debt	3,010,843		3,563,429
Deferred income taxes	252,173		269,792
Long-term lease liabilities	251,061		198,875
Other long-term liabilities	281,609		337,437
Total long-term liabilities	3,795,686		4,369,533
Stockholders’ equity:
Common stock, $0.01 par value, 200,000,000 shares authorized; 126,992,107 and 125,425,931 shares issued at December 31, 2021 and 2020, respectively; and 126,971,036 and 125,400,599 shares outstanding at December 31, 2021 and 2020, respectively	1,270		1,255
Additional paid-in capital	1,279,931		1,257,262
Accumulated deficit	(98,826)		(764,685)
Accumulated other comprehensive loss, net	(5,612)		(51,517)
Treasury stock, at cost; 21,071 and 25,332 shares at December 31, 2021 and 2020, respectively	(424)		(510)
Total stockholders’ equity	1,176,339		441,805
Total liabilities and stockholders’ equity	$	5,827,460	$	5,478,490

See accompanying notes to the consolidated financial statements.

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CORNERSTONE BUILDING BRANDS, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS
	Year Ended
(In thousands)	December 31, 2021		December 31, 2020		December 31, 2019
Cash flows from operating activities:
Net income (loss)	$	665,859	$	(482,778)	$	(15,390)
Adjustments to reconcile net income (loss) to net cash from operating activities:
Depreciation and amortization	292,901		284,602		263,764
Non-cash interest expense	28,722		9,589		8,504
Share-based compensation expense	29,003		17,056		14,078
Loss on extinguishment of debt	42,234		—		—
Non-cash fair value premium on purchased inventory	—		—		16,249
Goodwill impairment	—		503,171		—
Asset impairment	22,210		4,905		—
Gain on divestitures	(831,252)		—		—
Loss (gain) on asset sales, net	—		(1,252)		321
Provision for credit losses	3,604		5,390		2,035
Deferred income taxes	(59,510)		(4,319)		(6,085)
Changes in operating assets and liabilities, net of effect of acquisitions and divestitures:
Accounts receivable	(156,066)		(61,976)		(38,242)
Inventories	(311,242)		7,927		91,822
Income taxes	24,865		14,146		(32,719)
Prepaid expenses and other	(56,768)		3,415		(10,279)
Accounts payable	72,260		4,663		(21,141)
Accrued expenses	36,944		8,276		(40,403)
Other, net	(19,651)		(4,398)		(2,906)
Net cash provided by (used in) operating activities	(215,887)		308,417		229,608
Cash flows from investing activities:
Acquisitions, net of cash acquired	(528,250)		(41,841)		(179,184)
Capital expenditures	(114,715)		(81,851)		(121,085)
Proceeds from divestitures, net of cash divested	1,187,307		—		—
Proceeds from sale of property, plant and equipment	5,124		3,569		5,511
Net cash provided by (used in) investing activities	549,466		(120,123)		(294,758)
Cash flows from financing activities:
Proceeds from ABL facility	190,000		345,000		290,000
Payments on ABL facility	(190,000)		(415,000)		(220,000)
Proceeds from cash flow revolver	—		115,000		—
Payments on cash flow revolver	—		(115,000)		—
Proceeds from term loan	108,438		—		—
Payments on term loan	(25,905)		(25,620)		(25,620)
Proceeds from senior notes	—		500,000		—
Payments on senior notes	(670,800)		—		—
Payments of financing costs	(13,187)		(6,731)		—
Purchases of treasury stock	—		(6,428)		—
Payments on tax receivable agreement	—		—		(24,906)
Payments on derivative financing obligations	(9,377)		—		—
Other	(6,418)		(1,566)		(1,934)
Net cash provided by (used in) financing activities	(617,249)		389,655		17,540
Effect of exchange rate changes on cash and cash equivalents	(150)		222		2,310
Net increase (decrease) in cash, cash equivalents and restricted cash	(283,820)		578,171		(45,300)
Cash, cash equivalents and restricted cash at beginning of period	680,478		102,307		147,607
Cash, cash equivalents and restricted cash at end of period	$	396,658	$	680,478	$	102,307
Supplemental disclosure of cash flow information:
Interest paid, net of amounts capitalized	$	178,330	$	196,770	$	240,063
Taxes paid (refunded), net (excluding tax receivable agreement payments)	$	267,399	$	(3,316)	$	51,001

See accompanying notes to the consolidated financial statements.

57

CORNERSTONE BUILDING BRANDS, INC.
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
(In thousands, except share data)
	Common Stock			Additional Paid-In Capital		Retained Earnings (Deficit)		Accumulated Other Comprehensive Income (Loss)		Treasury Stock			Stockholders’ Equity
	Shares	Amount								Shares	Amount
Balance, December 31, 2018	125,583,159	$	1,256	$	1,237,056	$	(265,839)	$	(10,813)	(110,899)	$	(1,678)	$	959,982
Treasury stock purchases	—	—		—		—		—		(256,857)	(1,934)		(1,934)
Retirement of treasury shares	(306,531)	(3)		(2,420)		—		—		306,531	2,423		—
Issuance of restricted stock	819,641	8		(8)		—		—		—	—		—
Issuance of common stock for the Ply Gem merger	13,731	—		167		—		—		—	—		167
Other comprehensive loss	—	—		—		—		(21,585)		—	—		(21,585)
Deferred compensation obligation	—	—		(86)		—		—		5,712	86		—
Share-based compensation	—	—		14,078		—		—		—	—		14,078
Net loss	—	—		—		(15,390)		—		—	—		(15,390)
Balance, December 31, 2019	126,110,000	$	1,261	$	1,248,787	$	(281,229)	$	(32,398)	(55,513)	$	(1,103)	$	935,318
Treasury stock purchases	—	—		—		—		—		(1,298,253)	(7,994)		(7,994)
Retirement of treasury shares	(1,298,665)	(13)		(7,982)		—		—		1,298,665	7,995		—
Issuance of restricted stock	614,596	6		(6)		—		—		—	—		—
Other comprehensive loss	—	—		—		—		(19,119)		—	—		(19,119)
Deferred compensation obligation	—	1		(593)		—		—		29,769	592		—
Share-based compensation	—	—		17,056		—		—		—	—		17,056
Cumulative effect of accounting change	—	—		—		(678)		—		—	—		(678)
Net loss	—	—		—		(482,778)		—		—	—		(482,778)
Balance, December 31, 2020	125,425,931	$	1,255	$	1,257,262	$	(764,685)	$	(51,517)	(25,332)	$	(510)	$	441,805
Treasury stock purchases	—	—		—		—		—		(612,011)	(9,685)		(9,685)
Retirement of treasury shares	(612,011)	(6)		(9,679)		—		—		612,011	9,685		—
Issuance of restricted stock	1,861,991	18		(18)		—		—		—	—		—
Issuance of common stock for the Ply Gem merger	15,220	—		185		—		—		—	—		185
Stock options exercised	300,976	3		3,264		—		—		—	—		3,267
Other comprehensive loss	—	—		—		—		45,905		—	—		45,905
Deferred compensation obligation	—	—		(86)		—		—		4,261	86		—
Share-based compensation	—	—		29,003		—		—		—	—		29,003
Net income	—	—		—		665,859		—		—	—		665,859
Balance, December 31, 2021	126,992,107	$	1,270	$	1,279,931	$	(98,826)	$	(5,612)	(21,071)	$	(424)	$	1,176,339

See accompanying notes to the consolidated financial statements.

58

 CORNERSTONE BUILDING BRANDS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. NATURE OF BUSINESS, RECENT DEVELOPMENTS, AND BASIS OF PRESENTATION

Nature of Business

Cornerstone Building Brands, Inc. (together with its subsidiaries, unless otherwise indicated, the “Company,” “Cornerstone,” “we,” “us” or “our”) is the largest manufacturer of external building products in North America. Headquartered in Cary, North Carolina, the Company serves residential and commercial customers across new construction and the repair and remodel markets. The Company reports results under three reportable segments: Windows, Siding, and Commercial.

Recent Developments

On February 13, 2022, funds affiliated with Clayton Dubilier & Rice, LLC (“CD&R”) submitted a non-binding proposal to acquire all of the Company’s outstanding shares of common stock that CD&R does not already own for a purchase price of $24.65 in cash per share (the “CD&R Offer”).

The CD&R Offer stated that any transaction would be subject to (i) approval by a special committee (“Special Committee”) of our independent directors; and (ii) a vote in favor of the transaction by a majority of the voting power represented by the shares of our common stock owned by stockholders not affiliated with CD&R.

The board of directors of the Company (the “Board”) previously formed a Special Committee to evaluate and consider any potential or actual proposal from CD&R and any other alternative proposals or other strategic alternatives that may be available to the Company.

The CD&R Offer provides that CD&R reserves the right to withdraw or modify the CD&R Offer at any time and no legally binding obligation with respect to any transaction will exist unless and until mutually acceptable definitive documentation is executed and delivered by us and CD&R. There can be no assurance that the transaction proposed by CD&R or any related transaction will be completed or as to the terms of any such potential transaction, including with respect to pricing or timing.

Basis of Presentation

Our consolidated financial statements include the accounts of the Company and our majority-owned subsidiaries. All intercompany accounts, transactions and profits arising from consolidated entities have been eliminated in consolidation.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

(a) Use of Estimates. The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, revenues and expenses, and related disclosures of contingent assets and liabilities in the consolidated financial statements and accompanying notes. Estimates are used for, but not limited to, provisions for expected credit losses and inventory reserves, accounting for business combinations, valuation of reporting units for purposes of assessing goodwill for impairment, valuation of asset groups for impairment testing, accruals for employee benefits, general liability insurance, warranties and certain contingencies. We base our estimates on historical experience, market participant fair value considerations, projected future cash flows, and various other factors that are believed to be reasonable under the circumstances. Actual results could differ from those estimates. Given the uncertain economic climate and additional or unforeseen effects from the COVID-19 pandemic, these estimates have become more challenging, and actual results could differ materially from these estimates.

(b) Cash and Cash Equivalents. Cash equivalents are stated at cost plus accrued interest, which approximates fair value. Cash equivalents are highly liquid debt instruments with an original maturity of three months or less and may consist of time deposits with a number of commercial banks with high credit ratings, money market instruments, certificates of deposit and commercial paper. The Company’s policy allows it to also invest excess funds in no-load, open-end, management investment trusts (“mutual funds”) that invest exclusively in high quality money market instruments. As of December 31, 2021, the Company’s cash and cash equivalents were only invested in cash.

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The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the consolidated balance sheets that total the amounts shown in the consolidated statements of cash flows (in thousands):

	December 31, 2021		December 31, 2020
Cash and cash equivalents	$	394,447	$	674,255
Restricted cash(1)	2,211		6,223
Total cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows	$	396,658	$	680,478

(1)Restricted cash primarily relates to escrow balances held for an outstanding earn-out agreement as of December 31, 2020 and working capital and other indemnification agreements in both periods presented.

(c) Accounts Receivable and Related Allowance. The Company reports accounts receivable net of an allowance for expected credit losses. Trade accounts receivable are the result of sales of vinyl windows, aluminum windows, vinyl siding, metal siding, injection molded products, metal building products, metal coating, and other products and services to customers throughout the United States and Canada and affiliated territories, including international builders who resell to end users. Sales are primarily denominated in U.S. dollars. Credit sales do not normally require a pledge of collateral; however, various types of liens may be filed to enhance the collection process and we require payment prior to shipment for certain international shipments.

The Company establishes provisions for expected credit losses based on the Company’s assessment of the collectability of amounts owed to us by our customers. Such provisions are included in selling, general and administrative expenses. In establishing these reserves, the Company considers changes in the financial position of a customer, age of the accounts receivable balances, availability of security, unusual macroeconomic conditions, lien rights and bond rights as well as disputes, if any, with our customers. Our allowance for credit losses reflects reserves for customer receivables to reduce receivables to amounts expected to be collected. Interest on delinquent accounts receivable is included in the trade accounts receivable balance and recognized as interest income when earned and collectability is reasonably assured. Uncollectible accounts are written off when a settlement is reached for an amount that is less than the outstanding historical balance, all collection efforts have been exhausted and/or any legal action taken by the Company has concluded.

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The following table represents the rollforward of the allowance for credit losses for the periods indicated (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Ending balance, prior period	$	13,313	$	9,962	$	10,270
Cumulative effect of accounting change(1)	—		678		—
Provision for expected credit losses	3,604		5,390		2,035
Amounts charged against allowance for credit losses, net of recoveries	(1,729)		(3,579)		(2,807)
Allowance for credit losses of acquired company at date of acquisition	269		862		464
Divestitures	(4,158)		—		—
Ending balance	$	11,299	$	13,313	$	9,962

(1)Cumulative effect of accounting change reflects the modified retrospective effect of adopting Accounting Standards Update (“ASU”) 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments

(d) Inventories. Inventories are stated at the lower of cost or net realizable value less allowance for inventory obsolescence using the First-In, First-Out Method (“FIFO”).

The components of inventory are as follows (in thousands):

	December 31, 2021		December 31, 2020
Raw materials	$	485,642	$	241,353
Work in process and finished goods	263,090		190,584
	$	748,732	$	431,937

The following table represents the rollforward of reserve for obsolete materials and supplies activity for the periods indicated (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Beginning balance	$	22,172	$	18,712	$	19,227
Provisions	5,155		8,015		3,207
Dispositions	(6,029)		(4,555)		(4,082)
Reserve of acquired company at date of acquisition	705		—		360
Divestitures	(722)		—		—
Ending balance	$	21,281	$	22,172	$	18,712

The principal raw materials used in the Company’s manufacturing processes include PVC resin, glass, aluminum, and steel that we purchase from multiple producers.

(e) Assets Held for Sale.

The Company records assets held for sale at the lower of the carrying value or fair value less costs to sell. The following criteria are used to determine if property is held for sale: (i) management has the authority and commits to a plan to sell the property; (ii) the property is available for immediate sale in its present condition; (iii) there is an active program to locate a buyer and the plan to sell the property has been initiated; (iv) the sale of the property is probable within one year; (v) the property is being actively marketed at a reasonable sale price relative to its current fair value; and (vi) it is unlikely that the plan to sell will be withdrawn or that significant changes to the plan will be made.

In determining the fair value of the assets less costs to sell, the Company considers factors including current sales prices for comparable assets in the area, recent market analysis studies, appraisals and any recent legitimate offers. If the estimated fair value less costs to sell of an asset is less than its current carrying value, the asset is written down to its estimated fair value less costs to sell. Our assumptions about property sales prices require significant judgment because the current market is highly sensitive to changes in economic conditions. We determined the estimated fair values of real property assets held for sale based on current market conditions and assumptions made by management, which may differ from actual results and may result in impairments if market conditions deteriorate. The total carrying value of assets held for sale is $3.4 million and

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$4.6 million at December 31, 2021 and 2020, respectively. Assets held for sale at December 31, 2021 are actively marketed for sale or are under contract.

In addition to the divested businesses discussed in Note 5 — Divestitures, during fiscal 2021 and 2020, the Company completed the sale of certain real property and equipment that was previously classified as held for sale, resulting in net cash proceeds of approximately $5.1 million and $2.0 million, respectively, and a net loss that was immaterial for fiscal 2021 and a net gain of $1.4 million for fiscal 2020, which are included in restructuring and impairment charges, net, in the consolidated statement of operations. During fiscal 2020, the Company determined an alternative use for a facility in the Commercial segment that had previously been classified as held for sale and reclassified the net book value of $1.7 million to property, plant and equipment.

(f) Property, Plant and Equipment. Property, plant and equipment are stated at cost and depreciated using the straight-line method over their estimated useful lives. Leasehold improvements are capitalized and amortized using the straight-line method over the shorter of their estimated useful lives or the term of the underlying lease. Depreciation and amortization are recognized in cost of sales and selling, general and administrative expenses based on the nature and use of the underlying assets.

Depreciation expense for fiscal 2021, 2020 and 2019 was $103.0 million, $103.5 million, and $86.2 million, respectively.

Property, plant and equipment consists of the following (in thousands):

	December 31, 2021		December 31, 2020
Land	$	24,812	$	26,933
Buildings and improvements	253,637		279,113
Machinery and equipment	990,338		970,083
	1,268,787		1,276,129
Less: accumulated depreciation	(656,492)		(644,308)
Total property, plant and equipment, net	$	612,295	$	631,821

Estimated useful lives for depreciation are:

Buildings and improvements	15	–	39 years
Machinery and equipment	3	–	15 years

The Company capitalizes interest on capital invested in projects in accordance with Accounting Standards Codification (“ASC”) 835, Interest. For fiscal 2021, 2020 and 2019, the total amount of interest capitalized was $0.9 million, $1.1 million and $1.2 million, respectively. Upon commencement of operations, capitalized interest, as a component of the total cost of the asset, is amortized over the estimated useful life of the asset.

(g) Internally Developed Software. Internally developed software is stated at cost less accumulated amortization, is included within property, plant and equipment within our consolidated balance sheets, and is depreciated using the straight-line method over its estimated useful life ranging from 3 to 7 years. Software assets are reviewed for impairment when events or circumstances indicate the carrying value may not be recoverable over the remaining lives of the assets. During the software application development stage, capitalized costs include external consulting costs, costs of software licenses and internal payroll and payroll related costs for employees who are directly associated with a software project. Upgrades and enhancements are capitalized if they result in added functionality which enable the software to perform tasks it was previously incapable of performing. Software maintenance, training, data conversion and business process reengineering costs are expensed in the period in which they are incurred.

(h) Goodwill and Other Intangible Assets. The Company reviews the carrying values of goodwill and identifiable intangibles whenever events or changes in circumstances indicate that such carrying values may not be recoverable and annually for goodwill as required by ASC 350, Intangibles — Goodwill and Other. This guidance provides the option to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value. If, based on a review of qualitative factors, it is more likely than not that the fair value of a reporting unit is less than its carrying value, we perform a quantitative analysis. If the carrying value of a reporting unit exceeds its fair value, we measure any goodwill impairment loss as the amount by which the carrying amount of a reporting unit exceeds its fair value, not to exceed the total amount of goodwill allocated to that reporting unit.

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Unforeseen events, changes in circumstances, market conditions and material differences in the value of intangible assets due to changes in estimates of future cash flows could negatively affect the fair value of the Company’s assets and result in a non-cash impairment charge. Some factors considered important that could trigger an impairment review include the following: significant underperformance relative to expected historical or projected future operating results, significant changes in the manner of the Company’s use of acquired assets or the strategy for its overall business and significant negative industry or economic trends.

(i) Leases. The Company has leases for certain office, manufacturing, warehouse and distribution locations, and vehicles and equipment, including fleet vehicles. Many of these leases have options to terminate prior to or extend beyond the end of the term. The exercise of the majority of lease renewal options is at the Company’s sole discretion. Some lease agreements have variable payments, the majority of which are real estate agreements in which future increases in rent are based on an index. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants. The Company accounts for lease and non-lease components as a single lease component for all leases other than leases of durable tooling. The Company has elected to exclude leases with an initial term of 12 months or less from the consolidated balance sheets and recognizes related lease payments in the consolidated statements of operations on a straight-line basis over the lease term.

Operating lease liabilities are recognized based on the present value of the future minimum lease payments over the reasonably expected holding period at the commencement date of the leases. Few of the Company’s lease contracts provide a readily determinable implicit rate. As such, an estimated incremental borrowing rate (“IBR”) is utilized, based on information available at the inception of the lease. The incremental borrowing rate represents an estimate of the interest rate we would incur at lease commencement to borrow an amount equal to the lease payments on a collateralized basis over the term of the lease.

Accounting for leases requires judgment, including determining whether a contract contains a lease, the incremental borrowing rates to utilize for leases without a stated implicit rate, the reasonably certain holding period for a leased asset, and the allocation of consideration to lease and non-lease components. The allocation of the lease and non-lease components for durable tooling is based on the Company’s best estimate of standalone price.

(j) Revenue Recognition. The Company enters into contracts that pertain to products, which are accounted for as separate performance obligations and are typically one year or less in duration. Given the nature of the Company's sales arrangements, we are not required to exercise significant judgment in determining the timing for the satisfaction of performance obligations or the transaction price. Revenue is measured as the amount of consideration expected to be received in exchange for our products. Revenue is generally recognized when the product has shipped from the Company’s facility and control has transferred to the customer. For certain products, it is industry practice that customers take title to products upon delivery, at which time revenue is then recognized by the Company. For a portion of the Company's business, when the Company processes customer owned material, control is deemed to transfer to the customer as the processing is being completed. Allowances for cash discounts, volume rebates and other customer incentive programs, as well as gross customer returns, among others, are recorded as a reduction of sales at the time of sale based upon the estimated future outcome. Cash discounts, volume rebates and other customer incentive programs are based upon certain percentages agreed upon with the Company’s various customers, which are typically earned by the customer over an annual period.

The Company’s revenues are adjusted for variable consideration, which includes customer volume rebates and prompt payment discounts. The Company measures variable consideration by estimating expected outcomes using analysis and inputs based upon anticipated performance, historical data, and current and forecasted information. Customer returns are recorded as a reduction to sales on an actual basis throughout the year and also include an estimate at the end of each reporting period for future customer returns related to sales recorded prior to the end of the period. The Company generally estimates customer returns based upon the time lag that historically occurs between the sale date and the return date, while also factoring in any new business conditions that might impact the historical analysis such as new product introduction. Measurement of variable consideration is reviewed by management periodically and revenue is adjusted accordingly. The Company does not have significant financing components. The Company recognizes installation revenue, primarily within the stone veneer business, over the period for which the stone is installed, which is typically a very short duration.

Shipping and handling activities performed by the Company are considered activities to fulfill the sales of our products. Amounts billed for shipping and handling are included in net sales, while costs incurred for shipping and handling are included in cost of sales.

In accordance with certain contractual arrangements, the Company receives payment from our customers in advance related to performance obligations that are to be satisfied in the future and recognizes such payments as deferred revenue, primarily related to the Company’s weathertightness warranties (see Warranty accounting policies below).

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A portion of the Company’s revenue, exclusively within the Commercial segment, includes multiple-element revenue arrangements due to multiple deliverables. Each deliverable is generally determined based on customer-specific manufacturing and delivery requirements. Because the separate deliverables have value to the customer on a stand-alone basis, they are typically considered separate units of accounting. A portion of the entire job order value is allocated to each unit of accounting. Revenue allocated to each deliverable is recognized upon shipment. The Company uses estimated selling price (“ESP”) based on underlying cost plus a reasonable margin to determine how to separate multiple-element revenue arrangements into separate units of accounting, and how to allocate the arrangement consideration among those separate units of accounting. The Company determines ESP based on normal pricing and discounting practices.

The following table presents disaggregated revenue disclosure details of net sales by segment (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Windows Net Sales Disaggregation:
Vinyl windows	$	2,190,887	$	1,763,565	$	1,838,796
Aluminum windows	85,735		74,672		53,622
Other	45,655		51,388		38,029
Total	$	2,322,277	$	1,889,625	$	1,930,447
Siding Net Sales Disaggregation:
Vinyl siding	$	667,284	$	523,724	$	525,005
Metal	293,427		255,267		263,018
Injection molded	75,361		66,672		66,578
Stone	87,948		86,457		92,228
Other products & services(1)	240,060		209,826		164,578
Total	$	1,364,080	$	1,141,946	$	1,111,407
Commercial Net Sales Disaggregation:
Metal building products(2)	$	1,473,662	$	1,107,733	$	1,249,757
Insulated metal panels(3)	208,220		348,640		441,441
Metal coil coating	214,898		129,425		156,695
Total	$	1,896,780	$	1,585,798	$	1,847,893
Total Net Sales:	$	5,583,137	$	4,617,369	$	4,889,747

(1)Other products & services primarily consist of installation of stone veneer products.

(2)The Company’s roll-up sheet doors (“DBCI”) business is only included in the results of operations through August 17, 2021 as a result of divestiture. See Note 5 — Divestitures for more information. The net sales of UCC, which was acquired on December 3, 2021, are included from the date of acquisition. See Note 4 — Acquisitions for more information.

(3)The Company’s insulated metal panels (“IMP”) business is only included in the results of operations through August 8, 2021 as a result of divestiture. See Note 5 — Divestitures for more information.

(k) Deferred Financing Costs. Deferred financing costs generally comprising facility, agency, and certain legal fees associated with issuing new debt and debt restructuring, are amortized over the contractual term of the related agreement using the effective interest method. See Note 13 — Long-Term Debt.

(l) Cost of Sales. Cost of sales includes the cost of inventory sold during the period, including costs for manufacturing, inbound freight, receiving, inspection, warehousing, and internal transfers less vendor rebates. Costs associated with shipping and handling the Company’s products are also included in cost of sales. Purchasing costs and engineering and drafting costs are included in selling, general and administrative expense.

(m) Warranty. The Company offers a number of warranties associated with the products it sells. The specific terms and conditions of these warranties vary depending on the product sold. The Company’s warranty liabilities are undiscounted and adjusted for inflation based on third party actuarial estimates. Factors that affect the Company’s warranty liabilities include

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the number of units sold, historical and anticipated rates of warranty claims, cost per claim and new product introduction. Warranties are normally limited to replacement or service of defective components for the original customer. Some warranties are transferable to subsequent owners and are generally limited to ten years from the date of manufacture or require pro-rata payments from the customer. A provision for estimated warranty costs is recorded based on historical experience and the Company periodically adjusts these provisions to reflect actual experience. Warranty costs are included within cost of goods sold. The Company assesses the adequacy of the recorded warranty claims and adjusts the amounts as necessary. Separately, upon the sale of a weathertightness warranty in the Commercial segment, the Company records the resulting revenue as deferred revenue, which is included in other accrued expenses and other long-term liabilities on the consolidated balance sheets depending on when the revenues are expected to be recognized. See Note 12 — Warranty.

(n) Insurance. Group medical insurance is purchased through Blue Cross Blue Shield (“BCBS”). The plans include a Preferred Provider Organization Plan (“PPO”) and a Consumer Driven Health Plan (“CDHP”). These plans are managed-care plans utilizing networks to achieve discounts through negotiated rates with the providers within these networks. The claims incurred under these plans are self-funded for the first $500,000. The Company purchases individual stop loss reinsurance to limit the claims liability to $500,000 per covered individual per year. BCBS administers all claims, including claims processing, utilization review and network access charges.

Insurance is purchased for workers compensation and employer liability, general liability, property and auto liability. The Company utilizes either deductibles or self-insurance retentions (“SIR”) to limit the exposure to catastrophic loss. The workers compensation insurance has a $1,000,000 per-occurrence deductible. The property and auto liability insurances have per-occurrence deductibles of $500,000 each. The general liability insurance has a $1,000,000 SIR. Umbrella insurance coverage is purchased to protect us against claims that exceed the Company’s per-occurrence or aggregate limits set forth in the Company’s respective policies. All claims are adjusted utilizing a third-party claims administrator and insurance carrier claims adjusters.

Each reporting period, the Company records the costs of its health insurance plan, including paid claims, an estimate of the change in incurred but not reported (“IBNR”) claims, and administrative fees, when applicable, (collectively the “Plan Costs”) as general and administrative expenses on the consolidated statements of operations. The estimated IBNR claims are based upon (i) the level of paid claims under the plan over the prior 36 months, (ii) an estimated lag factor and (iii) an estimate of incurred and reported but not yet paid claims. The Company uses an actuary to determine the claims lag and estimated liability for IBNR claims.

For workers’ compensation costs, the Company monitors the number of accidents and the severity of such accidents to develop appropriate estimates for expected costs to provide both medical care and indemnity benefits, when applicable, for the period of time that an employee is incapacitated and unable to work. These accruals are developed using independent third-party actuarial estimates of the expected cost for similar disabilities. For general liability and automobile claims, accruals are developed based on independent third-party actuarial estimates of the expected cost to resolve each claim, including damages and defense costs, based on legal and industry trends and the nature and severity of the claim. Accruals also include estimates for IBNR claims, and taxes and administrative fees, when applicable. Each reporting period, the Company records the costs of our workers’ compensation, general liability and automobile claims, including paid claims, an estimate of the change in IBNR claims, taxes and administrative fees as general and administrative expenses on the consolidated statements of operations.

(o) Advertising Costs. Advertising costs are expensed as incurred. Advertising expense was $16.9 million, $15.1 million and $28.6 million in fiscal 2021, 2020 and 2019, respectively.

(p) Impairment of Long-Lived Assets. The Company assesses impairment of property, plant and equipment at an asset group level in accordance with the provisions of ASC 360, Property, Plant and Equipment. The Company assesses the recoverability of the carrying amount of property, plant and equipment if certain events or changes in circumstances indicate that the carrying value of such asset groups may not be recoverable, such as a significant decrease in market value of the asset groups or a significant change in our business conditions. If it is determined that the carrying value of an asset group is not recoverable based on expected undiscounted future cash flows, excluding interest charges, an impairment loss equal to the excess of the carrying amount of the asset group over its fair value is recorded. The fair value of an asset group is determined based on prices of similar assets adjusted for their remaining useful life.

(q) Share-Based Compensation. Compensation expense is recorded for restricted stock awards under the fair value method. Compensation expense for performance stock units (“PSUs”) is recorded based on the probable outcome of the performance conditions associated with the respective shares, as determined by management. See Note 9 — Share-Based Compensation.

(r) Foreign Currency Remeasurement and Translation. The functional currency for the Company’s Canadian operations is the Canadian dollar. Translation adjustments resulting from translating the functional currency financial

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statements into U.S. dollar equivalents are reported separately in accumulated other comprehensive income (loss) in stockholders’ equity. The net foreign currency gains (losses) included in net income (loss) for fiscal 2021, 2020 and 2019 were $(3.1) million, $1.1 million and $1.2 million, respectively. Net foreign currency translation adjustments, net of tax, and included in other comprehensive income (loss) were $6.6 million, $17.3 million and $3.2 million for the fiscal 2021, 2020 and 2019, respectively.

The functional currency for the Company’s Mexico operations is the U.S. dollar. Adjustments resulting from the remeasurement of the local currency financial statements into the U.S. dollar functional currency, which uses a combination of current and historical exchange rates, are included in net income (loss) in the current period. Net foreign currency remeasurement gains (losses) were $(0.6) million, $0.2 million and $0.9 million for fiscal 2021, 2020 and 2019, respectively.

(s) Contingencies. The Company establishes reserves for estimated loss contingencies and unasserted claims when it believes a loss is probable and the amount of the loss can be reasonably estimated. The Company’s contingent liability reserves are related primarily to litigation and environmental matters. Revisions to contingent liability reserves are reflected in income in the period in which there are changes in facts and circumstances that affect our previous assumptions with respect to the likelihood or amount of loss. Reserves for contingent liabilities are based upon assumptions and estimates regarding the probable outcome of the matter. The Company estimates the probability by evaluating historical precedent as well as the specific facts relating to each particular contingency (including the opinion of outside advisors, professionals and experts). Should the outcome differ from the assumptions and estimates or other events result in a material adjustment to the accrued estimated reserves, revisions to the estimated reserves for contingent liabilities would be required and would be recognized in the period the new information becomes known.

(t) Income taxes. The determination of the Company’s provision for income taxes requires significant judgment, the use of estimates and the interpretation and application of complex tax laws. The amounts recorded in our consolidated financial statements reflect estimates of final amounts due to timing of completion and filing of actual income tax returns. Estimates are required with respect to, among other things, the appropriate state income tax rates used in the various states in which we and our subsidiaries are required to file, the potential utilization of operating and capital loss carry-forwards for federal, state, and foreign income tax purposes and valuation allowances required, if any, for tax assets that may not be realized in the future. The Company establishes reserves when, despite our belief that our tax return positions are fully supportable, certain positions could be challenged, and the positions may not be fully sustained. The Company’s provision for income taxes reflects a combination of income earned and taxed in the various U.S. federal and state, Canadian federal and provincial, Mexican federal and other jurisdictions. Jurisdictional tax law changes, increases or decreases in permanent differences between book and tax items, accruals or adjustments of accruals for tax contingencies or valuation allowances, and the change in the mix of earnings from these taxing jurisdictions all affect the overall effective tax rate.

In assessing the realizability of deferred tax assets, the Company considers whether it is more likely than not that some portion, or all, of the deferred tax assets will not be realized. The Company considers all available evidence, both positive and negative, in determining whether a valuation allowance is required. Such evidence includes the scheduled reversal of deferred tax liabilities, projected future taxable income and tax planning strategies in making this assessment, and judgment is required in considering the relative weight of negative and positive evidence.

(u) Acquisitions. The Company records acquisitions resulting in the consolidation of a business using the acquisition method of accounting. Under this method, we record the assets acquired, including intangible assets that can be identified and named, and liabilities assumed based on their estimated fair values at the date of acquisition. Various fair value assumptions are used in the determination of these estimated fair values, including items such as sales growth rates, cost synergies, discount rates and other prospective financial information. The purchase price in excess of the fair value of the assets acquired and liabilities assumed is recorded as goodwill. We believe these estimates are based upon reasonable assumptions; however, they are inherently uncertain and unpredictable, and actual results may differ. Estimates associated with the accounting for acquisitions may change during the measurement period, which may be up to one year from the acquisition date. As a result, material adjustments during the measurement period are reflected in the comparative consolidated financial statements in the period in which the adjustment amount is determined. Upon the conclusion of the measurement period or final determination of the values of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded in our consolidated statements of operations. Newly acquired entities are included in our results from the date of their respective acquisitions. See Note 4 — Acquisitions.

3. ACCOUNTING PRONOUNCEMENTS

Adopted Accounting Pronouncements

In December 2019, the Financial Accounting Standards Board ("FASB") issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which simplifies the accounting for income taxes by removing certain exceptions to the general principles in Topic 740 and also improves consistent application of and simplifies U.S. GAAP for

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other areas of Topic 740 by clarifying and amending existing guidance. Effective January 1, 2021, the Company adopted this guidance. The application of ASU 2019-12 did not have a material effect on the consolidated financial statements.

Recent Accounting Pronouncements

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides optional guidance to ease the potential burden in accounting for reference rate reform on financial reporting. In January 2021, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848): Scope, which clarifies that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivatives that are affected by the reference rate transition. The amendments in these ASUs are elective, apply to all entities that have contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of rate reform, and may be adopted as of March 12, 2020 through December 31, 2022. The Company is evaluating the impact of electing to apply the amendments.

In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, which requires the recognition and measurement of contract assets and contract liabilities acquired in a business combination in accordance with ASC 606, Revenue from Contracts with Customers. This creates an exception to the general recognition and measurement principles in ASC 805. The Company will be required to adopt this guidance in the annual and interim periods for the fiscal year ending December 31, 2023, with early adoption permitted. The amendments in this ASU should be applied prospectively to business combinations occurring on or after the effective date of the amendments. The Company does not anticipate that the adoption of this guidance will have a material impact on the consolidated financial statements.

4. ACQUISITIONS

Union Corrugating Company Holdings, Inc.

On December 3, 2021, the Company completed its acquisition of 100% of the issued and outstanding common stock of Union Corrugating Company Holdings, Inc. (“UCC”) for a purchase price of $216.8 million, subject to customary adjustments that have not been finalized as of December 31, 2021. UCC is a leading provider of residential metal roofing, metal buildings, and roofing components. The addition of UCC advances our growth strategy by expanding our offering to customers in the high growth metal roofing market. This acquisition was funded through cash available on the balance sheet. The Company reports UCC results within the Commercial segment.

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The Company preliminarily determined the fair value of the tangible and intangible assets and the liabilities acquired, and recorded goodwill based on the excess of the fair value of the acquisition consideration over such fair values, as follows (in thousands):

Assets acquired:
Cash	$	19,594
Accounts receivable	20,821
Other receivables	16
Inventories	68,727
Prepaid expenses and other current assets	1,356
Property, plant and equipment	24,184
Lease right of use assets	37,964
Goodwill	140,342
Other assets	94
Total assets acquired	313,098
Liabilities assumed:
Accounts payable	32,732
Accrued expenses	22,427
Deferred income taxes	1,289
Current portion of lease liability	3,859
Other current liabilities	1,852
Non-current portion of lease liabilities	34,105
Total liabilities assumed	96,264
Net assets acquired	$	216,834

The $140.3 million of preliminary goodwill was allocated to the Commercial segment. Goodwill from this acquisition is not deductible for tax purposes. The goodwill is primarily attributable to the synergies expected to be realized.

During the year ended December 31, 2021, UCC contributed net sales of $21.9 million and net income of $1.8 million, which have been included within the Company’s consolidated statements of operations. During the year ended December 31, 2021, the Company incurred $1.0 million of acquisition-related costs for UCC, all of which are recorded in strategic development and acquisition related costs in the Company’s consolidated statements of operations.

Due to the recent closing of the UCC transaction, the purchase price allocation is preliminary and will be finalized when valuations are complete and final assessment of the fair value of acquired assets and assumed liabilities are completed. There can be no assurance that such finalization will not result in material changes from the preliminary purchase price allocation. The Company’s estimates and assumptions are subject to change during the measurement period (up to one year from the acquisition date) as the Company finalizes the valuations of accounts receivable, other receivables, inventories, prepaid expenses and other current assets, property, plant and equipment, lease right of use assets, goodwill, intangible assets, other assets, accounts payable, accrued expenses, other current liabilities, other long-term liabilities, lease liabilities, and deferred income taxes.

Cascade Windows

On August 20, 2021, the Company completed its acquisition of Cascade Windows, Inc. (“Cascade Windows”) for $239.5 million in cash and a working capital adjustment that has not been finalized as of December 31, 2021. Cascade Windows serves the residential new construction and repair and remodel markets with energy efficient vinyl window and door products from various manufacturing facilities in the United States, expanding our manufacturing capabilities and creating new opportunities for us in the Western United States. This acquisition was funded through cash available on the balance sheet. The Company reports Cascade Windows’ results within the Windows segment.

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The Company preliminarily determined the fair value of the tangible and intangible assets and the liabilities acquired, and recorded goodwill based on the excess of the fair value of the acquisition consideration over such fair values, as follows (in thousands):

Assets acquired:
Cash	$	2,838
Accounts receivable	17,398
Other receivables	409
Inventories	16,278
Prepaid expenses and other current assets	1,538
Property, plant and equipment	18,300
Lease right of use assets	21,849
Intangible assets (trade names/customer relationships)	137,660
Goodwill	110,816
Other assets	500
Total assets acquired	327,586
Liabilities assumed:
Accounts payable	17,680
Accrued expenses	7,488
Deferred income taxes	33,221
Current portion of lease liability	247
Other current liabilities	2,349
Non-current portion of lease liabilities	19,926
Other long-term liabilities	7,211
Total liabilities assumed	88,122
Net assets acquired	$	239,464

The $110.8 million of preliminary goodwill was allocated to the Windows segment. Goodwill from this acquisition is not deductible for tax purposes. The goodwill is primarily attributable to the synergies expected to be realized.

During the year ended December 31, 2021, Cascade Windows contributed net sales of $57.4 million and a net loss of $6.2 million, which have been included within the Company’s consolidated statements of operations. During the year ended December 31, 2021, the Company incurred $1.9 million of acquisition-related costs for Cascade Windows, $1.2 million of which are recorded in strategic development and acquisition related costs in the Company’s consolidated statements of operations.

The purchase price allocation for the acquisition of Cascade Windows remains subject to further adjustments, primarily associated with the finalization of the working capital adjustment, therefore the measurement period remained open as of December 31, 2021. The Company anticipates completing the acquisition accounting adjustments during the first half of fiscal 2022.

Prime Windows

On April 30, 2021, the Company acquired Prime Windows LLC (“Prime Windows”) for total consideration of $93.0 million, exclusive of a $2.0 million working capital adjustment that was finalized as of December 31, 2021. Prime Windows serves residential new construction and repair and remodel markets with energy efficient vinyl window and door products from two manufacturing facilities in the United States, expanding our manufacturing capabilities and creating new opportunities for us in the Western United States. This acquisition was funded through borrowings under the Company’s existing credit facilities. Prime Windows’ results are reported within the Windows segment.

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The Company preliminarily determined the fair value of the tangible and intangible assets and the liabilities acquired, and recorded goodwill based on the excess of the fair value of the acquisition consideration over such fair values, as follows (in thousands):

Assets acquired:
Cash	$	997
Accounts receivable	5,500
Inventories	4,446
Prepaid expenses and other current assets	823
Property, plant and equipment	2,500
Lease right of use assets	2,787
Intangible assets (trade names/customer relationships)	51,600
Goodwill	33,148
Other assets	50
Total assets acquired	101,851
Liabilities assumed:
Accounts payable	1,676
Other accrued expenses	1,679
Lease liabilities	2,637
Other long-term liabilities	829
Total liabilities assumed	6,821
Net assets acquired	$	95,030

The $33.1 million of goodwill was allocated to the Windows segment. Goodwill from this acquisition is expected to be deductible for tax purposes. The goodwill is primarily attributable to the synergies expected to be realized.

During the year ended December 31, 2021, Prime Windows contributed net sales of $55.8 million and net income of $5.3 million, which have been included within the Company’s consolidated statements of operations. The Company incurred $1.0 million of acquisition-related costs for Prime Windows during the year ended December 31, 2021, $0.7 million of which are recorded in strategic development and acquisition related costs in the Company’s consolidated statements of operations.

The fair value of all assets acquired and liabilities assumed was finalized during the fourth quarter of 2021.

Kleary

On March 2, 2020, the Company acquired 100% of the issued and outstanding shares of the common stock of Kleary Masonry, Inc. (“Kleary”) for total consideration of $40.0 million, exclusive of the $2.0 million working capital adjustment that was finalized during the three months ended July 4, 2020. The transaction was financed with cash on hand and through borrowings under the Company’s asset-based revolving credit facility. Kleary’s results are reported within the Siding segment.

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The Company determined the fair value of the tangible and intangible assets and the liabilities acquired, and recorded goodwill based on the excess of the fair value of the acquisition consideration over such fair values, as follows (in thousands):

Assets acquired:
Cash	$	143
Accounts receivable	7,135
Inventories	670
Prepaid expenses and other current assets	277
Property, plant and equipment	1,042
Lease right of use assets	445
Intangible assets (trade names/customer relationships)	22,350
Goodwill	12,539
Total assets acquired	44,601
Liabilities assumed:
Accounts payable	1,149
Other accrued expenses	1,020
Lease liabilities	339
Other long-term liabilities	109
Total liabilities assumed	2,617
Net assets acquired	$	41,984

The $12.5 million of goodwill was allocated to the Siding segment and will be deductible for tax purposes. The goodwill is attributable to the workforce of the acquired business and the synergies expected to be realized. The fair value of all assets acquired and liabilities assumed was finalized during the first quarter of 2021.

During the year ended December 31, 2020, the Company incurred $10.2 million of acquisition-related costs for Kleary, primarily consisting of a contingent earnout, which are recorded in strategic development and acquisition related costs in the Company’s consolidated statements of operations. Strategic development and acquisition related costs for the year ended December 31, 2021 included a reduction of $4.2 million to the previously estimated accrual to reflect the final contingent earnout for the Kleary acquisition at approximately $5.4 million, which was paid as of October 2, 2021.

Environmental Stoneworks

On January 12, 2019, the Company entered into a Unit Purchase Agreement (the “Purchase Agreement”) with Environmental Materials, LLC, a Delaware limited liability company (“Environmental Stoneworks”), the Members of Environmental Materials, LLC (the “Sellers”) and Charles P. Gallagher and Wayne C. Kocourek, solely in their capacity as the Seller Representative (as defined in the Purchase Agreement), pursuant to which, on February 20, 2019, the Company’s wholly-owned subsidiary, Ply Gem Industries, Inc., purchased from the Sellers 100% of the outstanding limited liability company interests of Environmental Stoneworks for total consideration of $182.6 million, subject to certain post-closing adjustments. The transaction was financed through borrowings under the Company’s asset-based revolving credit facility. Environmental Stoneworks’ results are reported within the Siding segment.

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The Company determined the fair value of the tangible and intangible assets and the liabilities acquired, and recorded goodwill based on the excess of fair value of the acquisition consideration over such fair values, as follows (in thousands):

Assets acquired:
Restricted cash	$	3,379
Accounts receivable	16,825
Inventories	13,062
Prepaid expenses and other current assets	3,677
Property, plant and equipment	14,295
Lease right-of-use assets	11,372
Intangible assets (trade names/customer relationships)	91,170
Goodwill	63,543
Deferred taxes	474
Other assets	157
Total assets acquired	217,954
Liabilities assumed:
Accounts payable	5,910
Other accrued expenses	14,666
Lease liabilities	11,365
Other long-term liabilities	3,450
Total liabilities assumed	35,391
Net assets acquired	$	182,563

The $63.5 million of goodwill was allocated to the Siding segment and is expected to be deductible for tax purposes. The goodwill is attributable to the workforce of the acquired business and the synergies expected to be realized.

Unaudited Pro Forma Financial Information

The following table provides unaudited supplemental pro forma results for the Company for the years ended December 31, 2021, 2020 and 2019 as if the UCC, Cascade Windows, Prime Windows, Kleary and Environmental Stoneworks acquisitions had occurred on January 1, 2019 (in thousands except for per share data):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Net sales	$	5,977,230	$	5,056,390	$	5,387,135
Net income (loss) applicable to common shares	663,273		(480,289)		26,688
Net income (loss) per common share:
Basic	$	5.26	$	(3.83)	$	0.21
Diluted	$	5.23	$	(3.83)	$	0.21

The unaudited supplemental pro forma financial information was prepared based on the historical information of the Company, UCC, Cascade Windows, Prime Windows, Kleary and Environmental Stoneworks. The unaudited supplemental pro forma financial information does not give effect to the potential impact of current financial conditions, any anticipated synergies, operating efficiencies or cost savings that may result from the acquisitions or any integration costs. Unaudited pro forma balances are not necessarily indicative of operating results had the UCC, Cascade Windows, Prime Windows, Kleary and Environmental Stoneworks acquisitions occurred on January 1, 2019 or of future results.

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5. DIVESTITURES

On August 9, 2021, the Company completed the sale of its IMP business for cash proceeds of $1.0 billion. On August 18, 2021, the Company completed the sale of its DBCI business for cash proceeds of $168.9 million. The IMP and DBCI businesses were within the Company’s Commercial segment. For the year ended December 31, 2021, the Company recognized a pre-tax gain of $679.8 million for the IMP divestiture and $151.5 million for the DBCI divestiture, which are included in gain on divestitures in the consolidated statements of operations. As part of the consideration received for the sale of the IMP business, we entered into a short-term agreement with the purchaser to supply steel for the IMP business. We recognized approximately $15.5 million in net sales under the supply agreement, which ended in December 2021. For the year ended December 31, 2021, the Company incurred $21.3 million of divestiture-related costs, which are recorded in strategic development and acquisition related costs in the Company’s consolidated statements of operations. The divested businesses did not represent strategic shifts that have a major effect on our operations and financial results, so they were not presented as discontinued operations.

6. RESTRUCTURING AND IMPAIRMENT

The Company has various initiatives and programs in place within its business units to reduce SG&A, manufacturing costs and to optimize the Company’s combined manufacturing footprint. During the year ended December 31, 2021, the Company incurred restructuring charges of $1.3 million, $14.2 million and $10.1 million in the Windows, Siding and Commercial segments, respectively, and $0.6 million in corporate restructuring charges. Restructuring charges incurred to date since the current restructuring initiatives began in 2019 are $78.6 million. The following table summarizes the costs related to those restructuring initiatives and programs for periods indicated (in thousands):

	Year Ended		Cost Incurred To Date (since inception)
	December 31, 2021
Severance	$	3,696	$	39,927
Asset impairments	22,210		30,078
Gain on sale of facilities, net	—		(1,298)
Other restructuring costs	341		9,877
Total restructuring costs	$	26,247	$	78,584

For the year ended December 31, 2021, total restructuring costs are recorded within restructuring and impairment costs in the consolidated statement of operations. The asset impairments of $22.2 million for the year ended December 31, 2021 included right-of-use lease assets in the Windows segment of $0.3 million; certain product line assets in the Siding segment for which the fair value of the assets was below their carrying amounts by $14.0 million; assets in the Commercial segment that were recorded at fair value less cost to sell, which was less than the assets’ carrying amount by $6.4 million; and the write-off of previously capitalized software development costs in the Commercial segment of $1.5 million.

The following table summarizes our severance liability, included within other accrued expenses on the consolidated balance sheets, and cash payments made pursuant to the restructuring plans from inception through December 31, 2021 (in thousands):

	Windows		Siding		Commercial		Corporate		Total
Balance, December 31, 2018	$	—	$	85	$	—	$	2,333	$	2,418
Costs incurred	1,094		1,834		2,721		4,009		9,658
Cash payments	(676)		(1,437)		(2,721)		(4,579)		(9,413)
Balance, December 31, 2019	$	418	$	482	$	—	$	1,763	$	2,663
Costs incurred	4,294		2,705		16,561		3,013		26,573
Cash payments	(4,406)		(2,352)		(14,570)		(4,346)		(25,674)
Balance, December 31, 2020	$	306	$	835	$	1,991	$	430	$	3,562
Costs incurred	971		264		2,004		457		3,696
Cash payments	(1,262)		(904)		(2,473)		(587)		(5,226)
Balance, December 31, 2021	$	15	$	195	$	1,522	$	300	$	2,032

We expect to fully execute our restructuring initiatives and programs over the next 12 to 24 months and we may incur future additional restructuring charges associated with these plans. We are unable at this time to make a good faith

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determination of cost estimates, or ranges of cost estimates, associated with future phases of the plans or the total costs we may incur in connection with these plans.

7. GOODWILL AND OTHER INTANGIBLE ASSETS

The Company’s goodwill balance and changes in the carrying amount of goodwill by segment follows (in thousands):

	Windows		Siding		Commercial		Total
Balance, December 31, 2019	$	714,023	$	807,280	$	148,291	$	1,669,594
Goodwill recognized from acquisition	—		12,539		—		12,539
Impairment	(320,990)		(176,774)		(5,407)		(503,171)
Currency translation	3,991		10,000		—		13,991
Purchase accounting adjustments from prior year acquisitions	—		1,776		—		1,776
Balance, December 31, 2020	$	397,024	$	654,821	$	142,884	$	1,194,729
Goodwill recognized from acquisitions	143,964		122		140,342		284,428
Divestiture	—		—		(121,464)		(121,464)
Currency translation	208		155		—		363
Balance, December 31, 2021	$	541,196	$	655,098	$	161,762	$	1,358,056

As a result of the decline in the Company’s market valuation and near-term economic uncertainties related to the COVID-19 pandemic, during the first quarter of fiscal 2020, the Company determined that an interim goodwill impairment test was necessary. The Company determined that deterioration in discount rates and market multiples during the three months ended April 4, 2020 from the COVID-19 pandemic driven economic uncertainty when combined with lower forecasted discounted cash flows, decreased the fair values of the Company’s reporting units. The Company performed an impairment evaluation by comparing the fair market value of its reporting units, as determined using an equally weighted discounted cash flow model and a market approach, to its carrying value. It was determined that the Siding, Windows and Metal Coil Coating reporting units' carrying value each exceeded their fair value. As a result of this analysis, the Company recorded a goodwill impairment charge of approximately $321.0 million for the Windows reporting unit, $176.8 million for the Siding reporting unit, and $5.4 million for the Metal Coil Coating reporting unit (which is within the Commercial segment). This non-cash charge did not affect the Company’s cash position, liquidity or debt covenant compliance, nor did it have any impact on future operations.

In addition to interim impairment tests under ASC 350, Intangibles — Goodwill and Other, the Company evaluated its property and equipment and intangible assets for impairment during the first quarter of fiscal 2020 in accordance with ASC 360, Property, Plant and Equipment. This analysis was triggered by a decrease in projected cash flows due to the depressed construction market. The impairment test results did not indicate that an impairment existed other than the $3.1 million included in restructuring and impairment charges, net, in the Company’s consolidated statement of operations for the three months ended April 4, 2020.

The Company performed its annual impairment assessment of goodwill during the fourth quarter of fiscal 2021 and 2020. The Company performed the annual impairment testing on each of its reporting units that had goodwill balances. The fair value of the Company’s reporting units is based on a blend of estimated discounted cash flows and a market approach. The results from each of these models are then weighted and combined into a single estimate of fair value for the Company’s reporting units. Estimated discounted cash flows are based on projected sales and related cost of sales. Publicly traded company multiples and acquisition multiples are derived from information on traded shares and analysis of recent acquisitions in the marketplace, respectively, for companies with operations similar to ours. The primary assumptions used in these various models include earnings multiples of acquisitions in a comparable industry, future cash flow estimates of each of the reporting units, weighted average cost of capital, working capital and capital expenditure requirements.

As a result of the annual impairment tests, the Company concluded that the estimated fair value of each of its reporting units exceeded its carrying value. However, there can be no assurance that: 1) valuation multiples will not decline, 2) discount rates will not increase, or 3) the earnings, book values or projected earnings and cash flows of the Company’s reporting units will not decline. The Company will continue to analyze changes to these assumptions in future periods.

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The table that follows presents the major components of intangible assets as of December 31, 2021 and 2020 (in thousands). Intangible assets that are fully amortized are removed from the disclosures.

	Range of Life (Years)			Weighted Average Amortization Period (Years)	Cost		Accumulated Amortization		Net Carrying Value
As of December 31, 2021
Amortized intangible assets:
Trademarks/Trade names/other	3	–	15	7	$	241,727	$	(76,574)	$	165,153
Customer lists and relationships	7	–	20	9	1,845,511		(486,029)		1,359,482
Total intangible assets				8	$	2,087,238	$	(562,603)	$	1,524,635
	Range of Life (Years)			Weighted Average Amortization Period (Years)	Cost		Accumulated Amortization		Net Carrying Value
As of December 31, 2020
Amortized intangible assets:
Trademarks/Trade names	5	–	15	8	$	248,155	$	(51,722)	$	196,433
Customer lists and relationships	7	–	20	9	1,758,611		(370,440)		1,388,171
Total intangible assets				9	$	2,006,766	$	(422,162)	$	1,584,604

Intangible assets are amortized on a straight-line basis or a basis consistent with the expected future cash flows over their expected useful lives. Amortization expense of intangibles was $189.5 million, $181.0 million and $177.6 million in fiscal 2021, 2020 and 2019, respectively. The Company expects to recognize amortization expense over the next five fiscal years as follows (in thousands):

2022	$	196,157
2023	196,144
2024	195,487
2025	195,304
2026	195,120

In accordance with ASC 350, Intangibles — Goodwill and Other, the Company evaluates the remaining useful life of intangible assets on an annual basis. The Company reviews finite-lived intangible assets for impairment when events or changes in circumstances indicate the carrying values may not be recoverable in accordance with ASC 360, Property, Plant and Equipment.

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8. LEASES

Weighted average information about the Company’s lease portfolio as of December 31, 2021 was as follows:

Weighted-average remaining lease term	6.9 years
Weighted-average IBR	5.74	%

Operating lease costs were as follows (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020
Operating lease costs
Fixed lease costs	$	107,938	$	113,760
Variable lease costs(1)	102,646		70,795
(1) Includes short-term lease costs, which are immaterial.

Cash and non-cash activities were as follows (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	91,024	$	99,076
Right-of-use assets obtained in exchange for new operating lease liabilities	$	88,826	$	19,785

Future minimum lease payments under non-cancelable leases as of December 31, 2021 were as follows (in thousands):

	Operating Leases
2022	$	89,202
2023	65,893
2024	52,382
2025	43,976
2026	36,016
Thereafter	108,542
Total future minimum lease payments	396,011
Less: interest	71,800
Present value of future minimum lease payments	$	324,211
As of December 31, 2021
Current portion of lease liabilities	$	73,150
Long-term portion of lease liabilities	251,061
Total	$	324,211

9. SHARE-BASED COMPENSATION

Our 2003 Long-Term Stock Incentive Plan, as amended (the “2003 Incentive Plan”), is an equity-based compensation plan that allows us to grant a variety of types of awards, including stock options, restricted stock awards, stock appreciation rights, cash awards, phantom stock awards, restricted stock unit awards (“RSUs”) and long-term incentive awards with performance conditions (“performance share units” or “PSUs”). Awards are generally granted once per year, with the amounts and types of awards determined by the Compensation Committee of our Board of Directors (the “Committee”). In connection with the Merger (as defined herein) with Ply Gem Parent, LLC (“Ply Gem”) , on November 16, 2018, awards were granted to certain senior executives and key employees (the “Founders Awards”), which included stock options, RSUs, and PSUs. A portion of the Founders Awards was not granted under the 2003 Incentive Plan but was instead granted pursuant to a separate equity-based compensation plan, the Long-Term Incentive Plan. These Founders Awards were subject to award agreements with the same terms and provisions as awards of the same type granted under the 2003 Incentive Plan.

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As of December 31, 2021, and for all periods presented, the Founders Awards and our share-based awards granted under the 2003 Incentive Plan have consisted of RSUs, PSUs and stock options, none of which can be settled through cash payments. Both our stock options and restricted stock awards are subject only to vesting requirements based on continued employment through the end of a specified time period and typically vest in annual increments over three to five years or earlier upon death, disability or a change in control. As a general rule, stock option awards expire on the earlier of (i) 10 years from the date of grant, (ii) 60 days after termination of employment or service for a reason other than death, disability or retirement, or (iii) 180 days after death, disability or retirement. Awards are non-transferable except by disposition on death or to certain family members, trusts and other family entities as the Committee may approve.

Our time-based restricted stock awards are typically subject to graded vesting over a service period, which is three to five years. Our performance-based and market-based restricted stock awards are typically subject to cliff vesting at the end of the service period, which is typically three years. Our share-based compensation arrangements are equity classified and we recognize compensation cost for these awards on a straight-line basis over the requisite service period for each award grant. In the case of performance-based awards, expense is recognized based upon management’s assessment of the probability that such performance conditions will be achieved. Certain of our awards provide for accelerated vesting upon a change of control or upon termination without cause or for good reason.

A total of approximately 6,594,000 and 8,497,000 shares were available at December 31, 2021 and 2020, respectively, under the 2003 Incentive Plan for further grants of awards.

Vesting of the PSUs granted as part of the Founders Awards was contingent upon the achievement of synergies captured from the Merger and continued employment. Based on achieved synergies during the period comprising the two fiscal years ended December 31, 2020, the Founders Awards vested at 200% of target amounts in November 2021. Vesting of the PSUs granted under the 2003 Incentive Plan during the years ended December 31, 2021 and 2020 are contingent upon achievement of a cumulative three-year EBITDA growth target with an additional modifier based on total stockholders return. The grant-date fair values of the PSUs granted during the years ended December 31, 2021 and 2020 were determined by Monte Carlo simulations.

Stock Option Awards

The fair value of each option award is estimated as of the date of grant using a Black-Scholes-Merton option pricing formula. Expected volatility is based on normalized historical volatility of our stock over a preceding period commensurate with the expected term of the option. The risk-free rate for the expected term of the option is based on the U.S. Treasury yield curve in effect at the time of grant. Expected dividend yield was not considered in the option pricing formula since we do not currently pay dividends on our Common Stock and have no current plans to do so in the future.

During fiscal 2021, 2020 and 2019, we granted 815,258, 1,120,644 and 359,873 stock options, respectively, and the weighted average grant-date fair value of options granted during fiscal 2021, 2020 and 2019 was $7.38, $2.13 and $1.97, respectively.

The assumptions for the option awards granted in fiscal 2021, 2020 and 2019 were as follows:

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Volatility rate	49.03	%	47.52	%	39.87	%
Expected term (in years)	6.00		6.00		6.50
Risk-free interest rate	1.02	%	0.48	%	1.73	%

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The following is a summary of stock option transactions during fiscal 2021, 2020 and 2019 (in thousands, except weighted average exercise prices and weighted average remaining life):

	Number of Shares	Weighted Average Exercise Price		Weighted Average Remaining Life	Aggregate Intrinsic Value
Balance, December 31, 2018	3,297	12.08
Granted	360	4.67
Forfeited	(713)	12.16
Cancelled	(96)	9.17
Balance, December 31, 2019	2,848	11.22
Granted	1,121	4.86
Forfeited	(539)	11.26
Cancelled	(215)	11.85
Balance, December 31, 2020	3,215	8.95
Granted	815	15.01
Exercised	(301)	10.85
Forfeited	(647)	9.17
Cancelled	(37)	10.37
Balance, December 31, 2021	3,045	$	10.28	7.8	$	21,817
Exercisable at December 31, 2021	1,235	$	9.23	7.0	$	10,136

The following summarizes additional information concerning outstanding options at December 31, 2021 (in thousands, except weighted average remaining life and weighted average exercise prices):

Options Outstanding
Number of Options	Weighted Average Remaining Life	Weighted Average Exercise Price
1,119	8.0 years	$	4.91
1,926	7.8 years	13.40
3,045	7.8 years	$	10.28

The following summarizes additional information concerning options exercisable at December 31, 2021 (in thousands, except weighted average exercise prices):

Options Exercisable
Number of Options	Weighted Average Remaining Life	Weighted Average Exercise Price
507	7.8 years	$	4.83
728	6.5 years	12.30
1,235	7.0 years	$	9.23

There were 300,976 options exercised during fiscal 2021 and cash received from the option exercises was $3.3 million. The total intrinsic value of options exercised in fiscal 2021 was $1.5 million. The tax benefit realized for the tax deductions from options exercised totaled $0.6 million for fiscal 2021. No options were exercised during fiscal 2020 and 2019.

Restricted stock and performance awards

During fiscal 2021, 2020 and 2019, we granted time-based RSUs with a fair value of $18.7 million, $7.0 million and $3.3 million, respectively.

During the fiscal 2021, 2020 and 2019, we granted PSUs with fair values of approximately $28.0 million, $5.6 million and $0.4 million, respectively, to certain executives.

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Restricted stock and performance award transactions during fiscal 2021, 2020 and 2019 were as follows (in thousands, except weighted average grant prices):

	Restricted Stock and Performance Awards
	Time-Based			Performance-Based
	Number of Shares	Weighted Average Grant Price		Number of Shares(1)	Weighted Average Grant Price
Balance, December 31, 2018	2,245	$	12.57	1,037	$	14.63
Granted	703	5.40		76	4.67
Vested	(586)	12.42		(234)	16.30
Forfeited	(543)	11.00		(168)	13.09
Balance, December 31, 2019	1,819	$	10.32	711	$	13.38
Granted	1,399	5.04		1,068	5.25
Vested	(422)	11.77		(192)	19.65
Forfeited	(442)	9.76		(212)	8.49
Balance, December 31, 2020	2,354	$	7.02	1,375	$	6.93
Granted	1,248	14.97		1,525	24.48
Vested	(1,099)	6.23		(763)	10.67
Forfeited	(511)	9.64		(698)	11.38
Balance, December 31, 2021	1,992	$	11.76	1,439	$	17.73

(1)The number of restricted stock shown reflects the shares that would be granted if the target level of performance is achieved. The number of shares actually issued may vary.

Share-Based Compensation Expense

Share-based compensation expense is recorded over the requisite service or performance period. For awards with performance conditions, the amount of share-based compensation expense recognized is based upon the probable outcome of the performance conditions, as defined and determined by management. We account for forfeitures of outstanding but unvested grants in the period they occur.

Share-based compensation expense recognized during fiscal 2021, 2020 and 2019 was $29.0 million, $17.1 million and $14.1 million, respectively. The total income tax benefit recognized in results of operations for share-based compensation arrangements was $7.5 million, $4.4 million and $3.7 million in fiscal 2021, 2020 and 2019, respectively. Included in the share-based compensation expense during fiscal 2021 were accelerated awards of $1.0 million due to the retirement of the Company’s former CEO and modification of certain awards that included fully vesting certain restricted stock unit awards that would otherwise be forfeited at retirement, extending the post-retirement exercise period for stock options vesting at the retirement date, and allowing continued vesting of certain performance unit award that would otherwise be forfeited at the retirement date. As of December 31, 2021, we do not have any amounts capitalized for share-based compensation cost in inventory or similar assets.

Unrecognized share-based compensation expense and weighted average period over which expense attributable to unvested awards will be recognized are as follows (in millions, except weighted average remaining years):

	Year Ended December 31, 2021
	Unrecognized Share-Based Compensation Expense		Weighted Average Remaining Years
Stock options	$	7.8	2.1
Time-based restricted stock	16.8		2.1
Performance-based restricted stock	19.7		1.6
Total unrecognized share-based compensation expense	$	44.3

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10. EARNINGS PER COMMON SHARE

Basic earnings per common share is computed by dividing net income allocated to common shares by the weighted average number of common shares outstanding. Diluted income per common share, if applicable, considers the dilutive effect of common stock equivalents. The reconciliation of the numerator and denominator used for the computation of basic and diluted income per common share is as follows (in thousands, except per share data):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Numerator for Basic and Diluted Earnings Per Common Share:
Net income (loss) applicable to common shares	$	658,044	$	(482,778)	$	(15,390)
Denominator for Basic and Diluted Earnings Per Common Share:
Weighted average basic number of common shares outstanding	126,058		125,562		125,576
Common stock equivalents:
Employee stock options	737		—		—
Weighted average diluted number of common shares outstanding	126,795		125,562		125,576
Basic earnings (loss) per common share	$	5.22	$	(3.84)	$	(0.12)
Diluted earnings (loss) per common share	$	5.19	$	(3.84)	$	(0.12)
Incentive Plan securities excluded from dilution(1)	275		2,559		4,480

(1)Represents securities not included in the computation of diluted earnings per common share because their effect would have been anti-dilutive.

We calculate earnings per share using the “two-class” method, whereby unvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents are “participating securities” and, therefore, these participating securities are treated as a separate class in computing earnings per share. The calculation of earnings per share presented here excludes the income attributable to unvested restricted stock units related to our Incentive Plan from the numerator and excludes the dilutive impact of those shares from the denominator. Awards subject to the achievement of performance conditions or market conditions for which such conditions had been met at the end of any of the fiscal periods presented are included in the computation of diluted earnings per common share if their effect was dilutive.

11. OTHER ACCRUED EXPENSES

Other accrued expenses are comprised of the following (in thousands):

	December 31, 2021		December 31, 2020
Sales and marketing	$	99,845	$	69,236
Accrued warranty obligation and deferred warranty revenue	30,181		26,094
Other accrued expenses	190,363		152,563
Total other accrued expenses	$	320,389	$	247,893

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12. WARRANTY

The following table represents the rollforward of our accrued warranty obligation and deferred warranty revenue activity for the years ended December 31, 2021 and 2020 (in thousands):

	December 31, 2021		December 31, 2020
Beginning balance	$	216,230	$	216,173
Acquisitions	10,518		109
Warranties sold	1,986		2,677
Revenue recognized	(2,650)		(2,746)
Expense	26,129		28,566
Settlements	(31,612)		(28,549)
Divestiture	(2,245)		—
Ending balance	218,356		216,230
Less: current portion	30,181		26,094
Total warranty, less current portion	$	188,175	$	190,136

The current portion of the warranty liabilities is recorded within other accrued expenses and the long-term portion of the warranty liabilities is recorded within other long-term liabilities on the Company’s consolidated balance sheets.

13. LONG-TERM DEBT

Debt is comprised of the following (in thousands):

	December 31, 2021		December 31, 2020
Term loan facility due April 2028	$	2,580,500	$	2,497,967
8.00% senior notes due April 2026	—		645,000
6.125% senior notes due January 2029	500,000		500,000
Less: unamortized discounts and unamortized deferred financing costs(1)	(43,657)		(53,938)
Total long-term debt, net of unamortized discounts and unamortized deferred financing costs	3,036,843		3,589,029
Less: current portion of long-term debt	26,000		25,600
Total long-term debt, less current portion	$	3,010,843	$	3,563,429

(1)Includes the unamortized discounts and unamortized deferred financing costs associated with the term loan facility, the 8.00% senior notes due April 2026 (included in the December 31, 2020 balance only as the notes were redeemed in full in April 2021), and the 6.125% senior notes due January 2029. The unamortized deferred financing costs associated with the asset-based and revolving credit facilities of $1.3 million and $1.7 million as of December 31, 2021 and 2020, respectively, are classified in other assets on the consolidated balance sheets.

The scheduled maturity of our debt is as follows (in thousands):

2022	$	26,000
2023	26,000
2024	26,000
2025	26,000
2026 and thereafter	2,976,500
	$	3,080,500

Term Loan Facility due April 2028 and Cash Flow Revolver

On April 12, 2018, Ply Gem Midco entered into a Cash Flow Agreement (the "Current Cash Flow Credit Agreement"), which provides for (i) a term loan facility (the “Existing Term Loan Facility”) in an original aggregate principal amount of $1,755.0 million, issued with a discount of 0.5%, and (ii) a cash flow-based revolving credit facility (the “Existing Cash Flow Revolver” and together with the Existing Term Loan Facility, the “Existing Cash Flow Facilities”) of up to $115.0 million.

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On November 16, 2018, the Company entered into an incremental term loan facility in connection with the Merger, which increased the aggregate principal amount of the Existing Term Loan Facility by $805.0 million. The proceeds of this incremental term loan facility were used to, among other things, (a) finance the Merger and to pay certain fees, premiums and expenses incurred in connection therewith, (b) repay in full amounts outstanding under the Pre-merger Term Loan Credit Agreement and the Pre-merger ABL Credit Agreement and (c) repay $325.0 million of borrowings outstanding under the ABL Facility. On November 16, 2018, in connection with the consummation of the Merger, NCI and Ply Gem Midco entered into a joinder agreement with respect to the Existing Cash Flow Facilities, and the Company became the Borrower (as defined in the Current Cash Flow Credit Agreement) under the Existing Cash Flow Facilities.

On April 15, 2021, the Company entered into a Second Amendment to the Current Cash Flow Credit Agreement (the “Second Amendment"), among the Company, the several banks and other financial institutions party thereto (the "Cash Flow Lenders") and JPMorgan Chase Bank, N.A., as administrative agent and collateral agent (the “Cash Flow Agent”), which amended the Current Cash Flow Credit Agreement to, among other things:

•Terminate $92.0 million of commitments by Cash Flow Lenders under the Company’s cash flow-based revolving credit facility of up to $115.0 million, maturing on April 12, 2023 (the “Existing Cash Flow Revolver”; and

•Replace such commitments with $92.0 million of extended cash flow-based revolving commitments, maturing on April 12, 2026 (the “Extended Cash Flow Revolver” and together with the Existing Cash Flow Revolver, the “Current Cash Flow Revolver”).

On April 15, 2021, the Company entered into (i) a Third Amendment to Current Cash Flow Credit Agreement (the “Third Amendment”), among the Company, the subsidiary guarantors parties thereto, the Cash Flow Lenders party thereto and the Cash Flow Agent and (ii) an Increase Supplement (the “Increase Supplement”), between the Company and JPMorgan Chase Bank, N.A., as the increasing lender. The Third Amendment amended the Current Cash Flow Credit Agreement to, among other things, refinance the Existing Term Loan Facility in an original aggregate principal amount of $1,755.0 million with Tranche B Term Loans in an aggregate principal amount of approximately $2,491.6 million, maturing on April 12, 2028. The Increase Supplement supplemented the Current Cash Flow Credit Agreement to, among other things, increase the aggregate principal amount of the Tranche B Term Loan Facility by approximately $108.4 million (the “Incremental Tranche B Term Loans”), for a total principal amount of $2,600.0 million (the “Current Term Loan Facility” and together with the Current Cash Flow Revolver, the “Current Cash Flow Facilities”). Proceeds of the Incremental Tranche B Term Loans were used, together with cash on hand, (i) for the redemption of all of the 8.00% Senior Notes (as defined below) (the “Senior Notes Redemption”) and (ii) to pay any fees and expenses incurred in connection with the extension and refinancing of the Company’s senior credit facilities and the Senior Notes Redemption.

In connection with the Third Amendment and the Increase Supplement to the Current Cash Flow Credit Agreement, the Company incurred $24.8 million in financing costs of which $13.2 million was deferred and are being amortized using the effective interest method.

The Current Term Loan Facility amortizes in nominal quarterly installments equal to one percent of the aggregate initial principal amount thereof per annum, with the remaining balance payable upon final maturity. The Current Term Loan Facility bears annual interest at a floating rate measured by reference to, at the Company’s option, either (i) an adjusted LIBOR rate (subject to a floor of 0.50%) plus an applicable margin of 3.25% per annum or (ii) an alternate base rate plus an applicable margin of 2.25% per annum. At December 31, 2021, the interest rates on the Current Term Loan Facility were as follows:

	December 31, 2021
Interest rate	3.75	%
Effective interest rate	4.02	%

The Company entered into certain interest rate swap agreements in 2019 and 2021 to effectively convert a portion of its variable rate debt to fixed. See Note 14 — Derivatives.

Loans outstanding under the Current Cash Flow Revolver bear annual interest at a floating rate measured by reference to, at the Company’s option, either (i) an adjusted LIBOR rate (subject to a floor of 0.00%) plus an applicable margin ranging from 2.50% to 3.00% per annum depending on the Company’s secured leverage ratio or (ii) an alternate base rate plus an applicable margin ranging from 1.50% to 2.00% per annum depending on the Company’s secured leverage ratio. There are no amortization payments under the Current Cash Flow Revolver. Additionally, unused commitments under the Current Cash Flow Revolver are subject to a fee ranging from 0.25% to 0.50% per annum depending on the Company’s secured leverage ratio.

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Both the Current Term Loan Facility and Current Cash Flow Revolver may be prepaid at the Company’s option at any time without premium or penalty (other than customary breakage costs), subject to minimum principal amount requirements.

Subject to certain exceptions, the Current Term Loan Facility is subject to mandatory prepayments in an amount equal to:

•the net cash proceeds of (1) certain asset sales, (2) certain debt offerings and (3) certain insurance recovery and condemnation events; and

•50% of annual excess cash flow (as defined in the Current Cash Flow Credit Agreement), subject to reduction to 25% and 0% if specified secured leverage ratio targets are met to the extent that the amount of such excess cash flow exceeds $10.0 million. No payments were required in 2021 under the fiscal year 2020 excess cash flow calculation.

The obligations under the Current Cash Flow Credit Agreement are guaranteed by each direct and indirect wholly-owned U.S. restricted subsidiary of the Company, subject to certain exceptions, and are secured by:

•a perfected security interest in substantially all tangible and intangible assets of the Company and each subsidiary guarantor (other than ABL Priority Collateral (as defined below)), including the capital stock of each direct material wholly-owned U.S. restricted subsidiary owned by the Company and each subsidiary guarantor, and 65% of the capital stock of any non-U.S. subsidiary held directly by the Company or any subsidiary guarantor, subject to certain exceptions (the “Cash Flow Priority Collateral”), which security interest will be senior to the security interest in the foregoing assets securing the Current ABL Facility; and

•a perfected security interest in the ABL Priority Collateral, which security interest will be junior to the security interest in the ABL Priority Collateral securing the Current ABL Facility.

The Current Cash Flow Revolver includes a financial covenant set at a maximum secured leverage ratio of 7.75:1.00, which will apply if the outstanding amount of loans and drawings under letters of credit which have not then been reimbursed exceeds a specified threshold at the end of any fiscal quarter.

ABL Facility due April 2026

On April 12, 2018, Ply Gem Midco entered into an ABL Credit Agreement (the “Current ABL Credit Agreement”), which provides for an asset-based revolving credit facility (the “Existing ABL Facility”) of up to $360.0 million, consisting of (i) $285.0 million available to U.S. borrowers (subject to U.S. borrowing base availability) (the “ABL U.S. Facility”) and (ii) $75.0 million available to both U.S. borrowers and Canadian borrowers (subject to U.S. borrowing base and Canadian borrowing base availability) (the “ABL Canadian Facility”). The Company and, at their option, certain of their subsidiaries are the borrowers under the Existing ABL Facility.

On October 15, 2018, Ply Gem Midco entered into an incremental asset-based revolving credit facility of $36.0 million, which upsized the Existing ABL Facility to $396.0 million in the aggregate, and with (x) the ABL U.S. Facility being increased from $285.0 million to $313.5 million and (y) the ABL Canadian Facility being increased from $75.0 million to $82.5 million.

On November 16, 2018, Ply Gem Midco entered into an incremental asset-based revolving credit facility of $215.0 million in connection with the Merger, which upsized the Existing ABL Facility to $611.0 million in the aggregate, and with (x) the ABL U.S. Facility being increased from $313.5 million to approximately $483.7 million and (y) the ABL Canadian Facility being increased from $82.5 million to approximately $127.3 million. On November 16, 2018, in connection with the consummation of the Merger, the Company and Ply Gem Midco entered into a joinder agreement with respect to the Existing ABL Facility, and the Company became the Parent Borrower (as defined in the ABL Credit Agreement) under the Existing ABL Facility.

On April 15, 2021, the Company entered into Amendment No. 6 to the Current ABL Credit Agreement, by and among the Company, the subsidiary borrowers party thereto, the several banks and financial institutions party thereto and UBS AG, Stamford Branch, as administrative agent and collateral agent, which amended the ABL Credit Agreement in order to, among other things:

•Terminate the existing revolving commitments of each of the Extending ABL Credit Lenders (as defined in therein), originally maturing on April 12, 2023 (the “Existing ABL Commitments”); and

•Replace the Existing ABL Commitments with an extended revolving commitment of $611.0 million, maturing on April 12, 2026 (the “Current ABL Facility”).

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Borrowing availability under the Current ABL Facility is determined by a monthly borrowing base collateral calculation that is based on specified percentages of the value of eligible inventory, eligible accounts receivable and eligible credit card receivables, less certain reserves and subject to certain other adjustments as set forth in the Current ABL Credit Agreement. Availability is reduced by issuance of letters of credit as well as any borrowings. As of December 31, 2021, the Company had the following in relation to the Current ABL Facility (in thousands):

	December 31, 2021
Excess availability	$	565,576
Revolving loans outstanding	0
Letters of credit outstanding	40,257

Loans outstanding under the Current ABL Facility bear interest at a floating rate measured by reference to, at the Company’s option, either (i) an adjusted LIBOR rate (subject to a LIBOR floor of 0.00%) plus an applicable margin ranging from 1.25% to 1.75% per annum depending on the average daily excess availability under the Current ABL Facility or (ii) an alternate base rate plus an applicable margin ranging from 0.25% to 0.75% per annum depending on the average daily excess availability under the ABL Facility. Additionally, unused commitments under the ABL Facility are subject to a 0.25% per annum fee.

The obligations under the Current ABL Credit Agreement are guaranteed by each direct and indirect wholly-owned U.S. restricted subsidiary of the Company, subject to certain exceptions, and are secured by:

•a perfected security interest in all present and after-acquired inventory, accounts receivable, deposit accounts, securities accounts, and any cash or other assets in such accounts and other related assets owned by the Company and the U.S. subsidiary guarantors and the proceeds of any of the foregoing, except to the extent such proceeds constitute Cash Flow Priority Collateral, and subject to certain exceptions (the “ABL Priority Collateral”), which security interest is senior to the security interest in the foregoing assets securing the Current Cash Flow Facilities; and

•a perfected security interest in the Cash Flow Priority Collateral, which security interest will be junior to the security interest in the Cash Flow Collateral securing the Current Cash Flow Facilities.

Additionally, the obligations of the Canadian borrowers under the Current ABL Credit Agreement are guaranteed by each direct and indirect wholly-owned Canadian restricted subsidiary of the Canadian borrowers, subject to certain exceptions, and are secured by substantially all assets of the Canadian borrowers and the Canadian subsidiary guarantors, subject to certain exceptions.

The Current ABL Credit Agreement includes a minimum fixed charge coverage ratio of 1.00:1.00, which is tested only when specified availability is less than 10.0% of the lesser of (x) the then applicable borrowing base and (y) the then aggregate effective commitments under the Current ABL Facility, and continuing until such time as specified availability has been in excess of such threshold for a period of 20 consecutive calendar days.

6.125% Senior Notes due January 2029

On September 24, 2020, the Company issued $500.0 million in aggregate principal amount of 6.125% Senior Notes due January 2029 (“the 6.125% Senior Notes”). Proceeds from the 6.125% Senior Notes were used to repay outstanding amounts under the Company’s Current ABL Facility and Current Cash Flow Revolver. The 6.125% Senior Notes bear interest at 6.125% per annum and will mature on January 15, 2029. Interest is payable semi-annually in arrears on January 15 and July 15 commencing on January 15, 2021. The effective interest rate for the 6.125% Senior Notes was 6.33% as of December 31, 2021, after considering each of the different interest expense components of this instrument, including the coupon payment and the deferred debt issuance costs.

The 6.125% Senior Notes are guaranteed on a senior unsecured basis by each of the Company’s existing and future wholly-owned domestic subsidiaries that guarantee the Company’s obligations under the Current Cash Flow Facilities or the Current ABL Facility (including by reason of being a borrower under the Current ABL Facility on a joint and several basis with the Company or a subsidiary guarantor). The 6.125% Senior Notes are unsecured senior indebtedness and are effectively subordinated to all of the Company’s existing and future senior secured indebtedness, including indebtedness under the Current Term Loan Facility, Current Cash Flow Revolver and Current ABL Facility, and are senior in right of payment to future subordinated indebtedness of the Company.

The Company may redeem the 6.125% Senior Notes in whole or in part at any time as set forth below:

•prior to September 15, 2023, at a price equal to 100% of the principal amount thereof, plus accrued and unpaid interest, if any, to but not including the redemption date, plus the applicable make-whole premium;

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•prior to September 15, 2023, up to 40% of the aggregate principal amount with the proceeds of certain equity offerings at a redemption price of 106.125% plus accrued and unpaid interest, if any, to but not including the redemption date;

•on or after September 15, 2023 and prior to September 15, 2024, at a price equal to 103.063% of the principal amount thereof, plus accrued and unpaid interest, if any, to but not including the redemption date;

•on or after September 15, 2024 and prior to September 15, 2025, at a price equal to 101.531% of the principal amount thereof, plus accrued and unpaid interest, if any, to but not including the redemption date; and

•on or after September 15, 2025, at a price equal to 100.000% of the principal amount thereof, plus accrued and unpaid interest, if any, to but not including the redemption date.

Redemption of 8.00% Senior Notes

On April 15, 2021, the Company redeemed the outstanding $645.0 million aggregate principal amount of the 8.00% Senior Notes due April 2026 (the “8.00% Senior Notes”) for $670.8 million using cash on hand and proceeds from the Incremental Tranche B Term Loans. The redemption resulted in a pre-tax loss on extinguishment of debt of $41.9 million during the year ended December 31, 2021, comprising a make-whole premium of $25.8 million and a write-off of $16.1 million in unamortized deferred financing costs.

Debt Covenants

The Company’s debt agreements contain a number of covenants that, among other things, limit or restrict the ability of the Company and its subsidiaries to incur additional indebtedness; make dividends and other restricted payments; incur additional liens; consolidate, merge, sell or otherwise dispose of all or substantially all assets; make investments; transfer or sell assets; enter into restrictive agreements; change the nature of the business; and enter into certain transactions with affiliates. As of December 31, 2021, the Company was in compliance with all covenants that were in effect on such date.

14. DERIVATIVES

We utilize derivative instruments, including interest rate swap agreements and foreign currency hedging contracts, to manage our exposure to interest rate risk and currency fluctuations. We only hold such instruments for economic hedging purposes, not for speculative or trading purposes. Our derivative instruments are transacted only with highly rated institutions, which reduces our exposure to credit risk in the event of nonperformance.

Interest Rate Swaps

We are exposed to interest rate risk associated with fluctuations in interest rates on our floating-rate Current Term Loan Facility. The objective in using interest rate derivatives is to manage our exposure to interest rate movements. To accomplish this objective, we have entered into interest rate swap agreements as part of our interest rate risk management strategy. Interest rate swaps involve the receipt of variable amounts from a counterparty in exchange for the company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount.

On a monthly basis, we net settle with our swap counterparties for the difference between the fixed rate specified in each swap agreement and the variable rate as applied to the notional amount of the swap.

In May 2019, the Company entered into four-year interest rate swaps to mitigate variability in forecasted interest payments on $1,500.0 million of the Company’s Current Term Loan Facility. The interest rate swaps effectively converted a portion of the floating rate interest payment into a fixed rate interest payment. Three interest rate swaps each covered a notional amount of $500.0 million. The Company designated the interest rate swaps as qualifying hedging instruments and accounted for these derivatives as cash flow hedges.

As discussed in Note 13 — Long-Term Debt, the Company refinanced its Term Loan Facility. Contemporaneously with the refinancing on April 15, 2021, we completed a series of transactions to modify our interest rate swap positions as follows: (i) we de-designated all existing interest rate swaps as cash flow hedges; (ii) we terminated two existing interest rate swaps with a notional value of $500.0 million each; (iii) we entered into two receive-fixed interest rate swaps with a notional amount of $250.0 million each, which are designed to offset the terms of an existing, active interest rate swap with a notional amount of $500.0 million; and (iv) we entered into two pay-fixed interest rate swaps with a notional amount of $750 million each, effectively blending the liability position of our existing interest rate swap agreements into the new swaps and extending the term of our hedged position to April 2026.

The amount remaining in accumulated other comprehensive loss for the de-designated and terminated swaps as of December 31, 2021 was approximately $44.7 million and is being amortized as an increase to interest expense over the effective period of the original swap agreements.

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The new receive-fixed interest rate swaps remain undesignated to economically offset the now undesignated existing, active swap. The new receive-fixed and the existing, active swaps mature on July 12, 2023. Cash settlements related to these receive-fixed interest rate swaps are classified as operating activities in the consolidated statements of cash flows.

The new pay-fixed interest rate swaps also qualify as hybrid instruments in accordance with ASC 815, Derivatives and Hedging, consisting of a financing component and an embedded at-market derivative that was designated as a cash flow hedge. The financing component is accounted for at amortized cost over the life of the swap while the embedded at-market derivative is accounted for at fair value. The new swaps are indexed to one-month LIBOR and are net settled on a monthly basis with the counterparty for the difference between the fixed rate of 2.0369% and 2.0340%, respectively, and the variable rate based upon one-month LIBOR (subject to a floor of 0.5%) as applied to the notional amount of the swaps. In connection with the transactions discussed above, no cash was exchanged between the Company and the counterparty. The liability of the terminated interest rate swaps as well as the inception value of the receive-fixed interest rate swap was blended into the new pay-fixed interest rate swap. The cash flows related to the portion treated as a financing component are classified as financing activities while the cash flows related to the portion treated as an at-market derivative are classified as operating activities in the consolidated statements of cash flows.

The key terms of interest rate swaps are as follows (amounts in thousands):

			December 31, 2021			December 31, 2020
Effective Date	Fixed Rate Paid (Received)		Notional Amount		Status	Notional Amount		Status	Maturity Date
Entered into May 2019:
July 12, 2019	2.1570	%	$	—	Terminated	$	500,000	Active	July 12, 2023
July 12, 2019	2.1560	%	—		Terminated	500,000		Active	July 12, 2023
July 12, 2019	2.1680	%	500,000		Active	500,000		Active	July 12, 2023
Entered into April 2021:
April 15, 2021	2.0369	%	750,000		Active				April 15, 2026
April 15, 2021	2.0340	%	750,000		Active				April 15, 2026
April 15, 2021	(2.1680)	%	(250,000)		Active				July 12, 2023
April 15, 2021	(2.1680)	%	(250,000)		Active				July 12, 2023
			$	1,500,000		$	1,500,000

The embedded at-market derivative portion of our interest rate swap agreements is recognized at fair value on the consolidated balance sheets. It is valued using pricing models that rely on market observable inputs such as yield curve data, which are classified as Level 2 inputs within the fair value hierarchy.

Foreign Currency Forward Contracts

In December 2020 and during 2021, the Company entered into forward contracts to hedge a portion of its non-functional currency inventory purchases. These forward contracts were established to protect the Company from variability in cash flows attributable to changes in the U.S. dollar relative to the Canadian dollar. The forward contracts are highly correlated to the changes in the U.S. dollar relative to the Canadian dollar. All of the Company’s foreign currency forward contracts are initially designated as qualifying hedging instruments and are accounted for as cash flow hedges in accordance with ASC 815, Derivatives and Hedging. Unrealized gains and losses on these contracts are designated as effective or ineffective. The effective portion of such gains or losses is recorded as a component of accumulated other comprehensive income or loss, while the ineffective portion of such gains or losses is recorded as a component of cost of goods sold. Future realized gains and losses in connection with each inventory purchase will be reclassified from accumulated other comprehensive income or loss to cost of goods sold. The gains and losses on the derivative contracts that are reclassified from accumulated other comprehensive income or loss to current period earnings are included in the line item in which the hedged item is recorded in the same period the forecasted transaction affects earnings.

During the year ended December 31, 2021, the Company realized a loss of approximately $1.1 million within cost of goods sold in the consolidated statements of operations based on the foreign currency forward contracts described above. The changes in fair values of derivatives that have been designated and qualify as cash flow hedges are recorded in accumulated other comprehensive income or loss and are reclassified into cost of goods sold in the same period the hedged item affects earnings. Due to the high degree of effectiveness between the hedging instruments and the underlying exposures being hedged, fluctuations in the value of the derivative instruments are generally offset by changes in the fair value or cash flows

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of the underlying exposures being hedged. The changes in the fair value of derivatives that do not qualify as effective are immediately recognized in earnings. As of December 31, 2021, the Company had a hedge asset of approximately $0.7 million and a gain of approximately $0.8 million in accumulated other comprehensive loss on the consolidated balance sheets. No hedge liability or asset or deferred gain or loss in accumulated other comprehensive loss existed as of December 31, 2020 related to the forward contracts.

Fair Values of Derivatives on the Consolidated Balance Sheets

The fair values of our derivatives and their presentation on the consolidated balance sheets as of December 31, 2021 and 2020 were as follows (in thousands):

		December 31, 2021				December 31, 2020
		Assets		Liabilities		Assets		Liabilities
Derivatives not designated as hedging instruments	Financial statement line item
Interest rate swaps	Other assets(1)	$	11,543	$	—	$	—	$	—
	Other long-term liabilities(2)	—		11,543		—		—
Total		$	11,543	$	11,543	$	—	$	—
Derivatives designated as hedging instruments	Financial statement line item
Interest rate swaps	Other accrued expenses(3)	$	—	$	13,127	$	—	$	—
	Other long-term liabilities(3)	—		28,279		—		75,770
Foreign currency forward contracts	Prepaid expenses and other	728		—		—		—
Total		$	728	$	41,406	$	—	$	75,770

(1)The balance as of December 31, 2021 is related to receive-fixed interest rate swaps for which the fair value option has been elected.

(2)The balance as of December 31, 2021 is related to a pay-fixed May 2019 active interest rate swap which has been de-designated as a cash flow hedge.

(3)The balances as of December 31, 2021 include the financing component of the pay-fixed interest rate swaps.

Effect of Derivatives on the Consolidated Statements of Operations

The effect of our derivatives and their presentation on the consolidated statements of operations for the years ended December 31, 2021 and 2020 were as follows (in thousands):

		Year Ended
		December 31, 2021		December 31, 2020
Derivatives not designated as hedging instruments	Financial statement line item
Interest rate swaps	Interest expense(1)	$	21,164	$	—
Foreign currency forward contracts	Cost of sales	1,083		—
Derivatives designated as hedging instruments
Interest rate swaps	Interest expense	15,998		24,198
		$	38,245	$	24,198

(1)For the year ended December 31, 2021, the entire balance related to the reclassification from accumulated other comprehensive loss to interest expense is due to de-designation from hedge accounting of all May 2019 interest rate swaps.

15. CD&R INVESTOR GROUP

On August 14, 2009, the Company entered into an Investment Agreement (as amended, the “Investment Agreement”), by and between the Company and Clayton, Dubilier & Rice Fund VIII, L.P., a Cayman Islands exempted limited partnership (“CD&R Fund VIII”). In connection with the Investment Agreement and the Stockholders Agreement dated October 20, 2009 (the “Old Stockholders Agreement”), CD&R Fund VIII and CD&R Friends & Family Fund VIII, L.P., a Cayman

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Islands exempted limited partnership (“CD&R FF Fund” and, together with CD&R Fund VIII, the “CD&R Fund VIII Investor Group”) purchased convertible preferred stock of the Company, which was converted into shares of our common stock on May 14, 2013.

In January 2014, the CD&R Fund VIII Investor Group completed a registered underwritten offering, in which the CD&R Fund VIII Investor Group offered 8.5 million shares of Common Stock at a price to the public of $18.00 per share (the “2014 Secondary Offering”). The underwriters also exercised their option to purchase 1.275 million additional shares of Common Stock. In addition, the Company entered into an agreement with the CD&R Fund VIII Investor Group to repurchase 1.15 million shares of its Common Stock at a price per share equal to the price per share paid by the underwriters to the CD&R Fund VIII Investor Group in the underwritten offering (the “2014 Stock Repurchase”). The 2014 Stock Repurchase, which was completed at the same time as the 2014 Secondary Offering, represented a private, non-underwritten transaction between NCI and the CD&R Fund VIII Investor Group that was approved and recommended by the Affiliate Transactions Committee of our Board of Directors.

On July 25, 2016, the CD&R Fund VIII Investor Group completed a registered underwritten offering, in which the CD&R Fund VIII Investor Group offered 9.0 million shares of our Common Stock at a price to the public of $16.15 per share (the “2016 Secondary Offering”). The underwriters also exercised their option to purchase 1.35 million additional shares of our Common Stock from the CD&R Fund VIII Investor Group. The aggregate offering price for the 10.35 million shares sold in the 2016 Secondary Offering was approximately $160.1 million, net of underwriting discounts and commissions. The CD&R Fund VIII Investor Group received all of the proceeds from the 2016 Secondary Offering and no shares in the 2016 Secondary Offering were sold by the Company or any of its officers or directors (although certain of our directors are affiliated with the CD&R Fund VIII Investor Group).

On July 18, 2016, the Company entered into an agreement with the CD&R Fund VIII Investor Group to repurchase approximately 2.9 million shares of our Common Stock at the price per share equal to the price per share paid by the underwriters to the CD&R Fund VIII Investor Group in the underwritten offering (the “2016 Stock Repurchase”). The 2016 Stock Repurchase, which was completed concurrently with the 2016 Secondary Offering, represented a private, non-underwritten transaction between the Company and the CD&R Fund VIII Investor Group that was approved and recommended by the Affiliate Transactions Committee of our Board of Directors. See Note 20 — Stock Repurchase Program.

On December 11, 2017, the CD&R Fund VIII Investor Group completed a registered underwritten offering of 7,150,000 shares of the Company’s Common Stock at a price to the public of $19.36 per share (the “2017 Secondary Offering”). Pursuant to the underwriting agreement, at the CD&R Fund VIII Investor Group request, the Company purchased 1.15 million of the 7.15 million shares of the Company’s Common Stock from the underwriters in the 2017 Secondary Offering at a price per share equal to the price at which the underwriters purchased the shares from the CD&R Fund VIII Investor Group. The total amount the Company spent on these repurchases was $22.3 million.

Ply Gem Holdings was acquired by CD&R Fund X and Atrium Intermediate Holdings, LLC, GGC BP Holdings, LLC and AIC Finance Partnership, L.P. (collectively, the “Golden Gate Investor Group”) and merged with Atrium on April 12, 2018 (the “Ply Gem-Atrium Merger”).

Pursuant to the terms of the Merger Agreement, on November 16, 2018, the Company entered into (i) a stockholders agreement (the “New Stockholders Agreement”) between the Company, and each of the CD&R Fund VIII Investor Group, CD&R Pisces Holdings, L.P., a Cayman Islands exempted limited partnership (“CD&R Pisces”, and together with the CD&R Fund VIII Investor Group, the “CD&R Investor Group”) and the Golden Gate Investor Group (together with the CD&R Investor Group, the “Investors”), pursuant to which the Company granted to the Investors certain governance, preemptive and subscription rights and (ii) a registration rights agreement (the “New Registration Rights Agreement”) between the Company and each of the Investors, pursuant to which the Company granted the Investors customary demand and piggyback registration rights, including rights to demand registrations and underwritten shelf registration statement offerings with respect to the shares of the Company’s Common Stock that are held by the Investors following the consummation of the Merger.

On August 25, 2020, the Company filed a shelf registration statement on Form S-3, declared effective by the SEC on September 2, 2020, registering the resale of shares of the Company’s Common Stock held by CD&R Pisces. The Company had previously registered the resale of shares of the Company’s Common Stock held by the CD&R Fund VIII Investor Group and the Golden Gate Investor Group.

Pursuant to the terms of the New Stockholders Agreement, the Company and the CD&R Fund VIII Investor Group terminated the Old Stockholders Agreement. Pursuant to the terms of the New Registration Rights Agreement, the Company and the CD&R Fund VIII Investor Group terminated the Registration Rights Agreement, dated as of October 20, 2009 (the “Old Registration Rights Agreement”), by and among the Company and the CD&R Fund VIII Investor Group.

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At December 31, 2021 and 2020, the CD&R Investor Group owned approximately 48.8% and 49.4%, respectively, of the outstanding shares of the Company’s Common Stock.

16. RELATED PARTIES

Pursuant to the Investment Agreement and the New Stockholders Agreement, the CD&R Investor Group had the right to designate a number of directors to the Company’s Board of Directors that was equivalent to the CD&R VIII Investor Group’s percentage interest in the Company. Among other directors appointed by the CD&R Investor Group, our Board of Directors appointed John Krenicki, Nathan K. Sleeper and Jonathan L. Zrebiec to the Board of Directors. Messrs. Krenicki, Sleeper and Zrebiec are partners of Clayton, Dubilier & Rice, LLC, (“CD&R, LLC”), an affiliate of the CD&R Investor Group.

As a result of their respective positions with CD&R, LLC and its affiliates, one or more of Messrs. Krenicki, Sleeper and Zrebiec may be deemed to have an indirect material interest in certain agreements executed in connection with the Equity Investment and the Merger.

17. FAIR VALUE OF FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS

Fair Value of Financial Instruments

The carrying amounts of cash and cash equivalents, restricted cash, trade accounts receivable and accounts payable approximate fair value as of December 31, 2021 and 2020 because of the relatively short maturities of these instruments. The carrying amounts of the indebtedness under the Current ABL Facility and Current Cash Flow Revolver approximate fair value as the interest rates are variable and reflective of market rates. At December 31, 2021, there were no borrowings outstanding under the Current ABL Facility and no outstanding indebtedness under the Current Cash Flow Revolver. The fair values of the remaining financial instruments not currently recognized at fair value on our consolidated balance sheets at the respective period ends were (in thousands): 

	December 31, 2021				December 31, 2020
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Term loan facility	$	2,580,500	$	2,570,823	$	2,497,967	$	2,485,477
8.00% Senior Notes	—		—		645,000		674,025
6.125% Senior Notes	500,000		531,900		500,000		530,000

The fair value of the term loan facility was based on recent trading activities of comparable market instruments, which are level 2 inputs and the fair values of the 8.00% and 6.125% senior notes were based on quoted prices in active markets for the identical liabilities, which are level 1 inputs.

Fair Value Measurements

ASC Subtopic 820-10, Fair Value Measurements and Disclosures, requires us to use valuation techniques to measure fair value that maximize the use of observable inputs and minimize the use of unobservable inputs. These inputs are prioritized as follows:

Level 1: Observable inputs such as quoted prices for identical assets or liabilities in active markets.

Level 2: Other inputs that are observable directly or indirectly, such as quoted prices for similar assets or liabilities or market-corroborated inputs.

Level 3: Unobservable inputs for which there is little or no market data and which require us to develop our own assumptions about how market participants would price the assets or liabilities.

The following is a description of the valuation methodologies used for assets and liabilities measured at fair value. There have been no changes in the methodologies used as of December 31, 2021 and 2020.

Money market: Money market funds have original maturities of three months or less. The original cost of these assets approximates fair value due to their short-term maturity.

Mutual funds: Mutual funds are valued at the closing price reported in the active market in which the mutual fund is traded.

Deferred compensation plan liability: Deferred compensation plan liability is comprised of phantom investments in the deferred compensation plan and is valued at the closing price reported in the active markets in which the money market and mutual funds are traded.

Interest rate swaps: Interest rate swaps are based on cash flow hedge contracts that have fixed rate structures and are measured against market-based LIBOR yield curves. These interest rate swaps are classified within Level 2 of the fair value

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hierarchy because they are valued using alternative pricing sources or models that utilized market observable inputs, including current and forward interest rates.

Foreign currency forward contracts: The fair value of the foreign currency forward contracts are classified within Level 2 of the fair value hierarchy because they are estimated using industry standard valuation models using market-based observable inputs, including spot rates, forward points, interest rates and volatility inputs.

The following tables summarize information regarding our financial assets and liabilities that are measured at fair value on a recurring basis as of December 31, 2021 and 2020, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value (in thousands):

	December 31, 2021
	Level 1		Level 2		Level 3		Total
Assets:
Short-term investments in deferred compensation plan:(1)
Money market	$	24	$	—	$	—	$	24
Mutual funds – Growth	557		—		—		557
Mutual funds – Blend	1,560		—		—		1,560
Mutual funds – Foreign blend	467		—		—		467
Mutual funds – Fixed income	—		151		—		151
Total short-term investments in deferred compensation plan(2)	2,608		151		—		2,759
Foreign currency forward contracts	—		728		—		728
Interest rate swap assets(3)	—		11,543		—		11,543
Total assets	$	2,608	$	12,422	$	—	$	15,030
Liabilities:
Deferred compensation plan liability(2)	$	—	$	2,759	$	—	$	2,759
Interest rate swap liabilities(4)	—		52,949		—		52,949
Total liabilities	$	—	$	55,708	$	—	$	55,708

	December 31, 2020
	Level 1		Level 2		Level 3		Total
Assets:
Short-term investments in deferred compensation plan:(1)
Money market	$	349	$	—	$	—	$	349
Mutual funds – Growth	487		—		—		487
Mutual funds – Blend	1,006		—		—		1,006
Mutual funds – Foreign blend	338		—		—		338
Mutual funds – Fixed income	—		153		—		153
Total short-term investments in deferred compensation plan(2)	2,180		153		—		2,333
Total assets	$	2,180	$	153	$	—	$	2,333
Liabilities:
Deferred compensation plan liability(2)	$	—	$	2,339	$	—	$	2,339
Interest rate swap liabilities	—		75,770		—		75,770
Total liabilities	$	—	$	78,109	$	—	$	78,109

(1)Unrealized holding gains (losses) were $0.2 million and $(0.5) million for the years ended December 31, 2021 and 2020, respectively.

(2)The Company records the short-term investments in deferred compensation plan within investments in debt and equity securities, at market, and the deferred compensation plan liability within accrued compensation and benefits on the consolidated balance sheets.

(3)The interest rate swap assets relate to receive-fixed interest rate swaps for which the fair value option has been elected.

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(4)The balance as of December 31, 2021 includes $41.4 million related to the financing component of pay-fixed interest rate swaps and $11.5 million related to pay-fixed May 2019 active interest rate swaps which have been de-designated as cash flow hedges.

18. INCOME TAXES

Income tax expense is based on pretax financial accounting income. Deferred income taxes are recognized for the temporary differences between the recorded amounts of assets and liabilities for financial reporting purposes and such amounts for income tax purposes.

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The following is a summary of the components of income (loss) before provision (benefit) for income taxes (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Domestic	$	818,635	$	(420,014)	$	(12,016)
Foreign	83,192		(57,201)		1,401
	$	901,827	$	(477,215)	$	(10,615)

The components of the provision for income taxes consisted of the following (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Current:
Federal	$	219,379	$	(1,343)	$	(311)
State	64,509		7,316		7,219
Foreign	11,590		3,909		3,952
Total current	295,478		9,882		10,860
Deferred:
Federal	(43,980)		82		205
State	(18,363)		1,462		1,875
Foreign	2,833		(5,863)		(8,165)
Total deferred	(59,510)		(4,319)		(6,085)
Total provision (benefit)	$	235,968	$	5,563	$	4,775

The reconciliation of income tax computed at the United States federal statutory tax rate to the effective income tax rate is as follows:

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Federal income tax at statutory rate	$	189,384	$	(100,215)	$	(2,229)
State income taxes	34,071		7,482		8,059
Non-deductible expenses	180		217		62
Gain on divestitures	9,725		—		—
Compensation related expenses	2,573		3,630		3,518
Meals and entertainment	552		465		1,265
Tax credits	(14,285)		(3,343)		(7,179)
Foreign income tax	3,413		(2,820)		(884)
Employee fringe benefits	480		443		474
Unrecognized tax benefits	5,686		(157)		(581)
Reversal of valuation allowance	—		—		(3,981)
Global intangible low-taxed income	8,248		4,317		4,398
Goodwill impairment	—		94,793		—
Transaction costs	—		—		1,903
Other	(4,059)		751		(50)
Total provision (benefit)	$	235,968	$	5,563	$	4,775

The increase in the effective tax rate for the year ended December 31, 2021 is primarily a result of higher pre-tax earnings relating to the gains on the Insulated Metal Panels and DBCI divestitures. The Company’s statutory federal

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corporate income tax rate for the year ended December 31, 2020 resulted from lower pre-tax earnings related to the goodwill impairment of $503.2 million, of which approximately $438.7 million had no tax basis, and the net impact of the Tax Cuts and Jobs Act (“U.S. Tax Reform”) that was enacted by the United States on December 22, 2017.

Deferred income taxes reflect the net impact of temporary differences between the amounts of assets and liabilities recognized for financial reporting purposes and such amounts recognized for income tax purposes. The tax effects of the temporary differences as December 31, 2021 and 2020 are as follows (in thousands):

	December 31, 2021		December 31, 2020
Deferred tax assets:
Inventory obsolescence	$	4,363	$	4,369
Bad debt reserve	2,511		2,302
Accrued and deferred compensation	13,136		7,522
Accrued insurance reserves	7,895		8,429
Net operating loss and tax credit carryover	41,732		61,169
Pension	1,148		4,576
Leases	72,812		68,589
Warranty	44,925		44,969
Other reserves	52,635		48,258
Total deferred tax assets	241,157		250,183
Less valuation allowance	(15,634)		(11,996)
Net deferred tax assets	225,523		238,187
Deferred tax liabilities:
Depreciation and amortization	(388,730)		(424,254)
Stock basis	(12,733)		(12,826)
Leases	(72,098)		(66,962)
Other	(2,296)		(2,070)
Total deferred tax liabilities	(475,857)		(506,112)
Total deferred tax liability, net	$	(250,334)	$	(267,925)

We carry out our business operations through legal entities in the U.S., Canada, Mexico and Costa Rica. These operations require that we file corporate income tax returns that are subject to U.S., state and foreign tax laws. We are subject to income tax audits in these multiple jurisdictions.

As of December 31, 2021, the $41.7 million net operating loss carryforward included $20.8 million for U.S federal losses, $13.3 million for U.S. state losses, and $7.6 million for foreign losses. Federal and foreign net operating losses will begin to expire in 2029, if unused, and state operating losses began to expire in 2021, if unused. There are limitations on the utilization of certain net operating losses.

Valuation allowance

As of December 31, 2021, the Company remains in a valuation allowance position, in the amount of $15.6 million, against its deferred tax assets for certain state jurisdictions as it is currently deemed “more likely than not” that the benefit of such net tax assets will not be utilized as the Company continues to be in a three-year cumulative loss position for these state jurisdictions. The Company will continue to monitor the positive and negative factors for these jurisdictions and make further changes to the valuation allowance as necessary.

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The rollforward of the valuation allowance on deferred taxes is as follows for the periods indicated (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Beginning balance	$	11,996	$	10,347	$	19,497
Additions (reductions)	3,638		1,649		(9,150)
Ending balance	$	15,634	$	11,996	$	10,347

Uncertain tax positions

Despite the Company’s belief that its tax return positions are consistent with applicable tax laws, the Company believes that certain positions could be challenged by taxing authorities. The Company’s tax reserves reflect the difference between the tax benefit claimed on tax returns and the amount recognized in the consolidated financial statements. These reserves have been established based on management’s assessment as to potential exposure attributable to permanent differences and interest and penalties applicable to both permanent and temporary differences. The tax reserves are reviewed periodically and adjusted in light of changing facts and circumstances, such as progress of tax audits, lapse of applicable statutes of limitations and changes in tax law. The Company is currently under examination by various taxing authorities.

As of December 31, 2021, the reserve was approximately $17.4 million, which includes interest and penalties of approximately $2.6 million and is recorded in other long-term liabilities in the accompanying consolidated balance sheets. Of this amount, approximately $14.8 million, if recognized would have an impact on the Company's effective tax rate. The Company has elected to treat interest and penalties on unrecognized tax benefits as income tax expense in its consolidated statement of operations. Interest and penalty charges have been recorded in the contingency reserve account within other long-term liabilities on the consolidated balance sheets.

The following is a rollforward of unrecognized tax benefits (excluding interest and penalties) for the years ended December 31, 2021 and 2020 (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020
Unrecognized tax benefits at beginning of year	$	9,403	$	10,107
Additions based on tax positions related to current year	6,037		194
Reductions for tax positions of prior years	15		(39)
Reductions resulting from expiration of statute of limitations	(610)		(859)
Unrecognized tax benefits at end of year	$	14,845	$	9,403

CARES Act

In response to the COVID-19 pandemic, the Coronavirus Aid, Relief and Economic Security Act ("CARES Act") was signed into law on March 27, 2020. The CARES Act, among other things, includes tax provisions relating to refundable payroll tax credits, deferment of employer side social security payments, net operating loss utilization and carryback periods, modifications to the net interest deduction limitations and technical corrections to tax depreciation methods for qualified improvement property (“QIP”). Specifically, the CARES Act amends IRC §163(j) for tax years 2019 and 2020. The CARES Act increases the 30% adjusted taxable income threshold to 50% and allows taxpayers to elect to use their 2019 adjusted taxable income as their adjusted taxable income in the 2020 §163(j) calculation. The combination of these two factors will allow the Company to deduct additional interest expense for income tax purposes that would have been previously disallowed. Additionally, the Company deferred employer side social security payments for approximately $19.9 million as of December 31, 2020. In December 2021, the Company paid approximately $10 million in related deferred employer side social security payments and approximately $10 million has been recorded in current liabilities on the consolidated balance sheet as of December 31, 2021. The Company continues to evaluate the impact of the CARES Act on our financial position, results of operations, and cash flows.

Other tax considerations

As of December 31, 2021, the Company has not established U.S. deferred taxes on unremitted earnings for the Company’s foreign subsidiaries. The Company continues to consider these amounts to be permanently invested with the exception of its Mexican subsidiary. The indefinite reinvestment assertion continues to apply for the remaining foreign subsidiaries for purposes of determining deferred tax liabilities for U.S. state and foreign withholding tax purposes.

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19. ACCUMULATED OTHER COMPREHENSIVE LOSS

Accumulated other comprehensive loss consists of the following (in thousands):

	December 31, 2021		December 31, 2020
Foreign exchange translation adjustments	$	22,741	$	16,147
Unrealized loss on derivative instruments, net of tax benefit of $5,549 and $17,612, respectively	(23,407)		(58,625)
Defined benefit pension plan actuarial losses, net of tax benefit of $1,854 and $5,049, respectively	(4,946)		(9,039)
Accumulated other comprehensive loss	$	(5,612)	$	(51,517)

20. STOCK REPURCHASE PROGRAM

On October 10, 2017 and March 7, 2018, the Company announced that its Board of Directors authorized new stock repurchase programs for up to an aggregate of $50.0 million and $50.0 million, respectively, of the Company’s Common Stock for a cumulative total of $100.0 million.

During fiscal 2021 and 2019, there were no stock repurchases under the stock repurchase programs. During fiscal 2020, the Company repurchased 1.1 million shares of its Common Stock for $6.4 million through open-market purchases under the authorized stock repurchase programs. As of December 31, 2021, approximately $49.1 million remains available for stock repurchases under the program authorized on March 7, 2018. The authorized programs have no time limit on their duration, but our Current Cash Flow Credit Agreement and Current ABL Credit Agreement apply certain limitations on our repurchase of shares of our Common Stock. The timing and method of any repurchases, which will depend on a variety of factors, including market conditions, are subject to results of operations, financial conditions, cash requirements and other factors, and may be suspended or discontinued at any time.

In addition to the Common Stock repurchases, the Company also withheld shares of restricted stock to satisfy minimum tax withholding obligations arising in connection with the vesting of restricted stock units, which are included in treasury stock purchases in the consolidated statements of stockholders’ equity.

During fiscal 2021, 2020 and 2019, the Company canceled 0.6 million, 1.3 million and 0.3 million shares, respectively, of which 1.1 million canceled shares, for fiscal 2020, related to repurchased shares under stock repurchase programs. The remainder of the canceled shares related to shares used to satisfy minimum tax withholding obligations in connection with the vesting of stock awards. The cancellations resulted in $9.7 million, $8.0 million and $2.4 million decreases in both additional paid-in capital and treasury stock during fiscal 2021, 2020 and 2019, respectively.

Changes in treasury stock, at cost, were as follows (in thousands):

	Number of Shares	Amount
Balance, December 31, 2018	111	$	1,678
Purchases	257	1,934
Retirements	(307)	(2,423)
Deferred compensation obligation	(6)	(86)
Balance, December 31, 2019	56	$	1,103
Purchases	1,298	7,994
Retirements	(1,299)	(7,995)
Deferred compensation obligation	(30)	(592)
Balance, December 31, 2020	25	$	510
Purchases	612	9,685
Retirements	(612)	(9,685)
Deferred compensation obligation	(4)	(86)
Balance, December 31, 2021	21	$	424

21. EMPLOYEE BENEFIT PLANS

Defined Contribution Plan — The Company has a 401(k) profit sharing plan (“Savings Plan”) that allows participation for all eligible employees. The Savings Plan allows the Company to match between 50% and 100% of the participant’s

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contributions up to 5% of a participant’s pre-tax deferrals. Contributions expense for fiscal 2021, 2020 and 2019 was $16.3 million, $16.2 million and $13.3 million, respectively, for matching contributions to the Savings Plan.

Deferred Compensation Plan — The Company has an Amended and Restated Deferred Compensation Plan (as amended and restated, the “Deferred Compensation Plan”) that allows its officers and key employees to defer up to 80% of their annual salary and up to 90% of their bonus on a pre-tax basis until a specified date in the future, including at or after retirement. Additionally, the Deferred Compensation Plan allows the Company’s directors to defer up to 100% of their annual fees and meeting attendance fees until a specified date in the future, including at or after retirement. The Deferred Compensation Plan also permits the Company to make contributions on behalf of its key employees who are impacted by the federal tax compensation limits under the Savings Plan, and to receive a restoration matching amount which, under the current Savings Plan terms, mirrors the Savings Plan matching levels based on the Company’s performance. The Deferred Compensation Plan provides for the Company to make discretionary contributions to employees who have elected to defer compensation under the plan. Deferred Compensation Plan participants will vest in the Company’s discretionary contributions ratably over three years from the date of each of the Company’s discretionary contributions.

As of December 31, 2021 and 2020, the liability balance of the Deferred Compensation Plan was $2.8 million and $2.3 million, respectively, and was included in accrued compensation and benefits on the consolidated balance sheets. The Company has not made any discretionary contributions to the Deferred Compensation Plan. A rabbi trust is used to fund the Deferred Compensation Plan and an administrative committee manages the Deferred Compensation Plan and its assets. The investments in the rabbi trust were $2.8 million and $2.3 million as of December 31, 2021 and 2020, respectively. The rabbi trust investments include debt and equity securities as well as cash equivalents and are accounted for as trading securities.

Defined Benefit Plans — With the acquisition of RCC on April 7, 2006, the Company assumed a defined benefit plan (the “RCC Pension Plan”). Benefits under the RCC Pension Plan are primarily based on years of service and the employee’s compensation. The RCC Pension Plan is frozen and, therefore, employees do not accrue additional service benefits. Plan assets of the RCC Pension Plan are invested in broadly diversified portfolios of government obligations, mutual funds, stocks, bonds and fixed income securities.

On January 16, 2015, the Company assumed noncontributory defined benefit plans covering certain hourly employees (the “Coil Coating Benefit Plans”) which are closed to new participants. Benefits under the Coil Coating Benefit Plans are calculated based on fixed amounts for each year of service rendered. The Company also sponsors postretirement medical and life insurance plans that cover certain of its employees and their spouses (the “OPEB Plans”). The contributions to the OPEB Plans by retirees vary from none to 25% of the total premiums paid. Plan assets of the Coil Coating Benefit Plans are invested in fixed income funds. Currently, the Company’s policy is to fund the Coil Coating Benefit Plans as required by minimum funding standards of the Internal Revenue Code.

As a result of the Merger on November 16, 2018, the Company assumed the Ply Gem Group Pension Plan (the “Ply Gem Plan”) and the MW Manufacturers, Inc. Retirement Plan (the “MW Plan”). The Ply Gem Plan was frozen during 1998, and no further increases in benefits for participants may occur as a result of increases in service years or compensation. The MW Plan was frozen for salaried participants during 2004 and non-salaried participants during 2005. No additional participants may enter the plan, but increases in benefits for participants as a result of increase in service years or compensation will occur.

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The Company refers to the RCC Pension Plan, the Coil Coating Benefit Plans, the Ply Gem Plan and the MW Plan collectively as the “Defined Benefit Plans” in this Note.

Assumptions—Weighted average actuarial assumptions used to determine benefit obligations were as follows:

	Defined Benefit Plans				OPEB Plans
	December 31, 2021		December 31, 2020		December 31, 2021		December 31, 2020
Discount rate	2.85	%	2.50	%	2.85	%	2.45	%

Weighted average actuarial assumptions used to determine net periodic benefit cost (income) were as follows:

	Defined Benefit Plans				OPEB Plans
	FY 2021		FY 2020		FY 2021		FY 2020
Discount rate	2.50	%	3.30	%	2.45	%	3.20	%
Expected return on plan assets	5.95	%	5.87	%	n/a		n/a

The basis used to determine the expected long-term rate of return on assets assumptions for the Defined Benefit Plans was recent market performance and historical returns. The assumptions for the plans are primarily long-term, prospective rates.

The health care cost trend rate assumed for 2022 is 6.00% and is assumed to decline each year to an ultimate trend rate of 4.00%, which is expected to be achieved in 2030.

Funded status—The changes in the projected benefit obligation, plan assets and funded status, and the amounts recognized on our consolidated balance sheets were as follows (in thousands):

	Defined Benefit Plans				OPEB Plans
	FY 2021		FY 2020		FY 2021		FY 2020
Change in benefit obligation
Benefit obligation at beginning of period	$	104,934	$	101,148	$	7,575	$	7,778
Service cost	54		46		17		17
Interest cost	2,542		3,231		178		237
Benefits paid	(6,641)		(6,883)		(985)		(661)
Actuarial (gains) losses	(3,755)		7,392		(283)		204
Benefit obligation at end of period	$	97,134	$	104,934	$	6,502	$	7,575
Accumulated benefit obligation at end of period	$	97,134	$	104,934
Change in plan assets
Fair value of assets at beginning of period	$	94,215	$	86,105	$	—	$	—
Actual return on plan assets	8,162		10,574		—		—
Company contributions	3,218		4,419		985		661
Benefits paid	(6,641)		(6,883)		(985)		(661)
Fair value of assets at end of period	$	98,954	$	94,215	$	—	$	—
Funded status at end of period	$	1,820	$	(10,719)	$	(6,502)	$	(7,575)
Amounts recognized on the consolidated balance sheets
Noncurrent assets	$	5,098	$	5,056	$	—	$	—
Current liabilities	—		—		(546)		(656)
Noncurrent liabilities	(3,278)		(15,775)		(5,956)		(6,919)
	$	1,820	$	(10,719)	$	(6,502)	$	(7,575)

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Certain of our defined pension plans have projected benefit obligations in excess of the fair value of plan assets. For these plans, the projected benefit obligations and the fair value of plan assets were as follows (in thousands):

	December 31, 2021		December 31, 2020
Projected benefit obligations	$	46,372	$	90,267
Fair value of plan assets	43,093		74,491
Funded status	$	(3,279)	$	(15,776)

Plan assets—The investment policy is to maximize the expected return for an acceptable level of risk. Our expected long-term rate of return on plan assets is based on a target allocation of assets, which is based on our goal of earning the highest rate of return while maintaining risk at acceptable levels.

As of December 31, 2021 and 2020, the weighted average asset allocations by asset category for the Defined Benefit Plans were as follows (in thousands):

Investment type	December 31, 2021		December 31, 2020
Equity securities	31	%	60	%
Debt securities	67	%	34	%
Real estate	2	%	6	%
Total	100	%	100	%

The principal investment objectives are to ensure the availability of funds to pay pension and postretirement benefits as they become due under a broad range of future economic scenarios, to maximize long-term investment return with an acceptable level of risk based on our pension and postretirement obligations, and to be sufficiently diversified across and within the capital markets to mitigate the risk of adverse or unexpected results from one security class having an unduly detrimental impact on the entire portfolio. Each asset class has broadly diversified characteristics. Decisions regarding investment policy are made with an understanding of the effect of asset allocation on funded status, future contributions and projected expenses.

We have set the target asset allocations for the RCC Pension Plan and the Ply Gem Plan at 30% equity and 70% fixed income, and the MW Plan at 50% equity and 50% fixed income. The Coil Coating Benefit Plans have a target asset allocation of 100% fixed income.

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The fair values of the assets of the Defined Benefit Plans at December 31, 2021 and 2020, by asset category and by levels of fair value, as further defined in Note 17 — Fair Value of Financial Instruments and Fair Value Measurements were as follows (in thousands):

	December 31, 2021						December 31, 2020
Asset category	Level 1		Level 2		Total		Level 1		Level 2		Total
Cash and cash equivalents	$	20	$	—	$	20	$	48	$	—	$	48
Mutual funds:
Growth funds	6,649		—		6,649		11,677		—		11,677
Real estate funds	2,072		—		2,072		5,966		—		5,966
Equity income funds	6,197		—		6,197		9,031		—		9,031
Index funds	12,642		—		12,642		26,364		—		26,364
International equity funds	4,883		—		4,883		8,844		—		8,844
Fixed income funds	12,982		53,509		66,491		12,562		19,723		32,285
Total	$	45,445	$	53,509	$	98,954	$	74,492	$	19,723	$	94,215

Net periodic benefit cost (income) —The components of the net periodic benefit cost (income) were as follows (in thousands):

	Defined Benefit Plans
	FY 2021		FY 2020		FY 2019
Service cost	$	54	$	46	$	42
Interest cost	2,542		3,231		3,897
Expected return on assets	(5,439)		(4,958)		(4,935)
Amortization of prior service cost	65		62		58
Amortization of loss	416		433		1,313
Net periodic benefit cost (income)	$	(2,362)	$	(1,186)	$	375

	OPEB Plans
	FY 2021		FY 2020		FY 2019
Service cost	$	17	$	17	$	22
Interest cost	178		237		262
Amortization of loss	70		108		—
Net periodic benefit cost	$	265	$	362	$	284

The amounts in accumulated other comprehensive income that have not yet been recognized as components of net periodic benefit income are as follows (in thousands):

	Defined Benefit Plans				OPEB Plans
	December 31, 2021		December 31, 2020		December 31, 2021		December 31, 2020
Unrecognized actuarial loss	$	5,450	$	12,345	$	1,350	$	1,703
Unrecognized prior service cost	—		65		—		—
Total	$	5,450	$	12,410	$	1,350	$	1,703

Unrecognized actuarial gains (losses), net of tax, of $4.1 million and $(1.1) million during fiscal 2021 and 2020, respectively, are included in other comprehensive income (loss) in the consolidated statements of comprehensive income (loss).

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The changes in plan assets and benefit obligation recognized in other comprehensive income (loss) are as follows (in thousands):

	Defined Benefit Plans
	FY 2021		FY 2020		FY 2019
Net actuarial loss (gain)	$	(6,479)	$	1,777	$	(315)
Amortization of net actuarial loss	(416)		(433)		(1,313)
Amortization of prior service cost	(65)		(63)		(58)
Total recognized in other comprehensive income (loss)	$	(6,960)	$	1,281	$	(1,686)

	OPEB Plans
	FY 2021		FY 2020		FY 2019
Net actuarial loss (gain)	$	(283)	$	204	$	1,367
Amortization of net actuarial loss	(70)		(108)		—
Total recognized in other comprehensive income (loss)	$	(353)	$	96	$	1,367

We expect to contribute $0.5 million to the OPEB Plans in fiscal 2022. We expect the following benefit payments to be made (in thousands):

Fiscal years ending	Defined Benefit Plans		OPEB Plans
2022	$	6,554	$	554
2023	6,522		539
2024	6,417		485
2025	6,337		463
2026	6,268		391
2027 - 2031	29,529		1,923

22. SEGMENT INFORMATION

Operating segments are defined as components of an enterprise that engage in business activities for which discrete financial information is available and is evaluated on a regular basis by the chief operating decision maker to make decisions regarding the allocation of resources to the segment and assess the performance of the segment. The Company has three reportable segments: Windows, Siding and Commercial.

These operating segments follow the same accounting policies used for our consolidated financial statements. We evaluate a segment’s performance on a U.S. GAAP basis based primarily upon operating income before corporate expenses.

Corporate assets consist primarily of cash, investments, prepaid expenses, current and deferred taxes and property, plant and equipment associated with our headquarters in Cary, North Carolina and office in Houston, Texas. These items (and income and expenses related to these items) are not allocated to the operating segments. Corporate unallocated expenses primarily include share-based compensation expenses, restructuring charges, acquisition-related costs, and other expenses related to executive, legal, finance, tax, treasury, human resources, information technology and strategic sourcing, and corporate travel expenses. Additional unallocated amounts primarily include non-operating items such as interest income, interest expense, loss on extinguishment of debt and other income (expense).

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Summary financial data attributable to the segments for the periods indicated is as follows (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Net sales:
Windows	$	2,322,277	$	1,889,625	$	1,930,447
Siding	1,364,080		1,141,946		1,111,407
Commercial	1,896,780		1,585,798		1,847,893
Total net sales	$	5,583,137	$	4,617,369	$	4,889,747
Operating income (loss):
Windows	$	100,725	$	(223,646)	$	92,538
Siding	137,772		(61,930)		66,273
Commercial	1,104,335		159,586		201,073
Corporate	(205,587)		(140,516)		(145,148)
Total operating income (loss)	$	1,137,245	$	(266,506)	$	214,736
Unallocated other expense, net	(235,418)		(210,709)		(225,351)
Income (loss) before income taxes	$	901,827	$	(477,215)	$	(10,615)
Depreciation and amortization:
Windows	$	134,626	$	121,519	$	94,737
Siding	116,660		113,737		121,004
Commercial	36,282		45,213		44,550
Corporate	5,333		4,133		3,473
Total depreciation and amortization expense	$	292,901	$	284,602	$	263,764
Capital expenditures:
Windows	$	49,001	$	22,197	$	43,408
Siding	33,198		28,558		22,695
Commercial	16,934		26,833		51,144
Corporate	15,582		4,263		3,838
Total capital expenditures	$	114,715	$	81,851	$	121,085
			December 31, 2021		December 31, 2020
Property, plant and equipment, net:
Windows			$	251,627	$	223,206
Siding			155,346		159,761
Commercial			174,440		227,391
Corporate			30,882		21,463
Total property, plant and equipment, net			$	612,295	$	631,821
Total assets:
Windows			$	2,223,098	$	1,717,032
Siding			2,060,275		2,123,615
Commercial			1,073,264		890,380
Corporate			470,823		747,463
Total assets			$	5,827,460	$	5,478,490

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Summary financial data attributable to various geographic regions for the periods indicated is as follows (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Total sales:
United States of America	$	5,132,085	$	4,304,559	$	4,526,385
Canada	422,867		305,780		340,250
Mexico	9,417		3,093		3,381
All other	18,768		3,937		19,731
Total net sales	$	5,583,137	$	4,617,369	$	4,889,747
			December 31, 2021		December 31, 2020
Long-lived assets:
United States of America			$	3,213,052	$	3,107,027
Canada			270,752		292,503
Costa Rica			324		189
Mexico			10,858		11,435
Total long-lived assets			$	3,494,986	$	3,411,154

Sales are determined based on customers’ requested shipment location.

23. CONTINGENCIES

As a manufacturer of products primarily for use in building construction, the Company is inherently exposed to various types of contingent claims, both asserted and unasserted, in the ordinary course of business. As a result, from time to time, the Company and/or its subsidiaries become involved in various legal proceedings or other contingent matters arising from claims or potential claims arising out of its operations and businesses that cover a wide range of matters, including, among others, environmental, contract, employment, intellectual property, securities, personal injury, property damage, product liability, warranty, and modification, adjustment or replacement of component parts or units sold, which may include product recalls. The Company insures (or self-insures) against these risks to the extent deemed prudent by its management and to the extent insurance is available. The Company regularly reviews the status of ongoing proceedings and other contingent matters along with legal counsel. Liabilities for such items are recorded when it is probable that the liability has been incurred and when the amount of the liability can be reasonably estimated. Liabilities are adjusted when additional information becomes available. Management believes that the ultimate disposition of these matters will not have a material adverse effect on the Company’s results of operations, financial position or cash flows. However, such matters are subject to many uncertainties and outcomes and are not predictable with assurance.

Further, due to the lack of adequate information and the potential impact of present regulations and any future regulations, there are certain circumstances in which no range of potential exposure may be reasonably estimated. Also, it is not possible to ascertain the ultimate legal and financial liability with respect to certain contingent liabilities, including lawsuits, and therefore no such estimate has been made as of December 31, 2021.

Environmental

The Company’s operations are subject to various federal, state, local and foreign environmental, health and safety laws. Among other things, these laws regulate the emissions or discharge of materials into the environment; govern the use, storage, treatment, disposal and management of hazardous substances and wastes; protect the health and safety of its employees and the end-users of its products; regulate the materials used in its products; and impose liability for the costs of investigating and remediating (as well as other damages resulting from) present and past releases of hazardous substances. Violations of these laws or of any conditions contained in environmental permits could result in substantial fines or penalties, injunctive relief, consent orders, requirements to install pollution controls or other abatement equipment, or civil sanctions.

The Company could be held liable for costs to investigate, remediate or otherwise address contamination at any real property it has ever owned, operated or used as a disposal site, or at other sites where we or predecessors may have released hazardous materials. The Company could incur fines, penalties or sanctions or be subject to third-party claims, including indemnification claims, for property damage, personal injury or otherwise as a result of violations of (or liabilities under) environmental, health and safety laws, or in connection with releases of hazardous or other materials.

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MW Manufacturers, Inc. (“MW”), a subsidiary of Ply Gem Industries, Inc., entered into a September 2011 Administrative Order on Consent with the U.S. Environmental Protection Agency (“EPA”) under the Corrective Action Program to address known releases of hazardous substances at MW’s Rocky Mount, Virginia property. A Phase I RCRA Facility Investigation (“RFI”) was submitted to the Virginia Department of Environmental Quality (“VDEQ”) in December 2015, and a Phase II RFI and the Human Health Risk Assessment and Baseline Ecological Risk Assessment were submitted in October 2018. A Limited Corrective Measures Study based on the investigations was submitted to the VDEQ for review and approval in September 2019. Upon completion of a 30-day public comment period, the VDEQ issued its Final Decision and Response to Comments approving a final remedy in May 2021. The final remedy consists of continuing groundwater monitoring until the VDEQ’s corrective actions have been met; and implementing and complying with land use restrictions and institutional controls imposed by an environmental covenant. The Company has recorded a liability of $4.5 million for this MW site, of which $1.0 million is in other current liabilities and $3.5 million is in other long-term liabilities on the Company’s consolidated balance sheet as of December 31, 2021. 

The EPA is investigating groundwater contamination at a Superfund site in York, Nebraska, referred to as the PCE/TCE Northeast Contamination Site (“PCE/TCE Site”). Kroy Building Products, Inc. (“KBP”), a subsidiary of Ply Gem Industries, Inc., has been identified as a potentially responsible party at the site and has liability for investigation and remediation costs associated with the contamination. In May 2019, KBP and an unrelated respondent entered into an Administrative Settlement Agreement and Order on Consent with the EPA to conduct a Remedial Investigation/Feasibility Study (“RI/FS”) of the PCE/TCE Site. A final RI/FS Work Plan was approved by EPA in December 2019. Two phases of RI field sampling have been completed through May 2021 and a Monitoring Well Plan was approved by EPA in November 2021. The Company has recorded a liability of $4.4 million within other current liabilities on its consolidated balance sheet as of December 31, 2021. If necessary, the Company will adjust our remediation liability if the RI/FS scope materially changes or the EPA imposes additional investigative requirements. The Company may be able to recover a portion of costs incurred in connection with the PCE/TCE Site from other potentially responsible parties, though there is no assurance we would receive any funds.

Based on current information, the Company is not aware of any environmental compliance obligations, claims or investigations that will have a material adverse effect on its results of operations, cash flows or financial position except as otherwise disclosed in the Company’s consolidated financial statements. However, there can be no guarantee that previously known or newly discovered matters will not result in material costs or liabilities.

Litigation

The Company believes it has valid defenses to the outstanding claims discussed below and will vigorously defend all such claims; however, litigation is subject to many uncertainties and there cannot be any assurance that the Company will ultimately prevail or, in the event of an unfavorable outcome or settlement of litigation, that the ultimate liability would not be material and would not have a material adverse effect on the business, results of operations, cash flows or financial position of the Company.

In November 2018, Aurora Plastics, LLC (“Aurora”) initiated an arbitration demand against Atrium Windows and Doors, Inc., Atrium Extrusion Systems, Inc., and North Star Manufacturing (London) Ltd. (collectively, “Atrium”) pursuant to a Third Amended and Restated Vinyl Compound and Supply Agreement dated as of December 22, 2016. A settlement was reached in this case during the fourth quarter of 2019. The Company has a $3.9 million liability related to the settlement in other current liabilities on the Company’s consolidated balance sheet as of December 31, 2021.

On November 14, 2018, an individual stockholder, Gary D. Voigt, filed a putative class action Complaint in the Delaware Court of Chancery against Clayton Dubilier & Rice, LLC (“CD&R”), Clayton, Dubilier & Rice Fund VIII, L.P. (“CD&R Fund VIII”), and certain directors of the Company. Voigt purported to assert claims on behalf of himself, on behalf of a class of other similarly situated stockholders of the Company, and derivatively on behalf of the Company, the nominal defendant. An Amended Complaint was filed on April 11, 2019. The Amended Complaint asserted claims for breach of fiduciary duty and unjust enrichment against CD&R Fund VIII and CD&R, and for breach of fiduciary duty against twelve director defendants in connection with the Merger. Defendants moved to dismiss the Amended Complaint and, on February 10, 2020, the court denied the motions except as to four of the director defendants. Voigt sought damages in an amount to be determined at trial. On August 25, 2021, the parties to the case filed a Stipulation of Compromise and Settlement (“Stipulation”) setting forth their agreement to settle the litigation. The Stipulation provides for CD&R, CD&R Fund VIII, and the eight director defendants to cause their respective insurers to pay a total of $100 million into an escrow account that will be used to pay escrow expenses, satisfy any fee and incentive amounts awarded by the court in favor of plaintiff and plaintiff’s counsel, and distribute the remaining funds to the Company. The Stipulation further provided that plaintiff’s counsel would apply for an award of attorneys’ fees and litigation expenses in an amount of up to 23.5% of the $100 million payment by the insurers, and that an incentive award for the named plaintiff will be paid solely from the amount of plaintiff attorneys’ fees awarded. This Stipulation required court approval. On January 19, 2022, the Court held a hearing, verbally approved the Stipulation, and approved the plaintiff’s counsel’s application for a fee award of 23.5% of the $100 million

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settlement payment and the incentive award. On January 20, 2022, the Court entered an Order and Final Judgment approving the Stipulation. The Stipulation represents a gain contingency in accordance with ASC 450, Contingencies, that has not been recorded as the matter was not resolved as of December 31, 2021. The proceeds from the Stipulation will be recorded when received.

Other contingencies

The Company’s imports of fabricated structural steel (“FSS”) from its Mexican affiliate, Building Systems de Mexico S.A. de C.V. (“BSM”) were subject to antidumping (“AD”) and countervailing duty (“CVD”) tariff proceedings before the U.S. Department of Commerce (“DOC”) and the U.S. International Trade Commission (“USITC”). The proceedings were initiated in February 2019 by the American Institute of Steel Construction (“AISC”) against FSS being imported into the USA from Mexico, Canada, and China. In 2019, the DOC issued preliminary tariff rates and in 2020 finalized CVD and AD tariff rates of 0% and 8.47%, respectively, for the Company’s imports of FSS from BSM. However, in February 2020, in a 3 to 2 vote, the USITC concluded there was no injury or threat of injury to the domestic FSS industry. In March 2020 the USITC opinion was published in the Federal Register, ceasing the Company’s requirement to pay the AD and CVD tariffs. The Company received full reimbursement for the $4.1 million in tariffs previously deposited with United States Customs and Border Protection and recorded a reduction in costs of sales during the fiscal year ended December 31, 2020. This matter was appealed by the AISC and, on September 22, 2021, the U.S. Court of International Trade (“CIT”) issued an opinion upholding the USITC’s determination that there was no injury or threat of injury to the domestic FSS industry caused by the cumulated imports of FSS from Mexico, Canada, and China. The AISC has appealed the CIT decision to the U.S. Court of Appeals for the Federal Circuit (“CAFC”). The Company will continue to vigorously advocate its position, that its import of FSS from BSM should not be subject to any CVD or AD tariffs, in all tribunals including the CAFC as well as the tribunal established pursuant to the North American Free Trade Agreement (“NAFTA”). The Company’s position is in agreement with, and bolstered by, the USITC’s determination that FSS imports do not cause material injury or threaten material injury to the U.S. industry and the CIT’s sustaining of the USITC’s final negative injury determination. We have evaluated this matter in accordance with ASC 450, Contingencies, and concluded that no liability to the Company is probable and estimable as of December 31, 2021.

104

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure.

None.

Item 9A. Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our chief executive officer and chief financial officer, evaluated the effectiveness of our disclosure controls and procedures as of December 31, 2021. The term “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, means controls and other procedures of a company that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding the required disclosure. Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures. Management believes that our disclosure controls and procedures are designed to provide reasonable assurance of achieving their objectives. Based on the evaluation of our disclosure controls and procedures as of December 31, 2021, our chief executive officer and chief financial officer concluded that, as of such date, our disclosure controls and procedures were effective at such reasonable assurance level.

Management’s report on internal control over financial reporting is included in Item 8 and is incorporated herein by reference.

Internal Control over Financial Reporting

We are currently in the process of assessing the internal controls of Union Corrugating Company Holdings, Inc. (“UCC”), Cascade Windows Inc. (“Cascade Windows”) and Prime Windows LLC (“Prime Windows”) as part of the post-close acquisition integration process. UCC, Cascade Windows and Prime Windows have been excluded from our assessment of internal control over financial reporting as of December 31, 2021. The total assets and revenues excluded from management’s assessment represent 10.9% and 2.4%, respectively, of the consolidated financial statements as of and for the year ended December 31, 2021.

There has been no change in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the fiscal quarter ended December 31, 2021 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Item 9B. Other Information.

None.

105

PART III

Item 10. Directors, Executive Officers and Corporate Governance.

We have adopted a Code of Business Conduct and Ethics, a copy of which is available on our internet website at www.cornerstonebuildingbrands.com under the heading “Investors — Sustainability — Governance.” Any amendments to or waivers from the Code of Business Conduct and Ethics that apply to our executive officers and directors will be posted to our website in the same section as the Code of Business Conduct and Ethics as noted above. However, the information on our website is not incorporated by reference into this Form 10-K.

The information under the captions “Proposal 1: Election of Directors,” “Management,” “Delinquent Section 16(a) Reports,” “Board of Directors” and “Corporate Governance” in our definitive proxy statement for our annual meeting of stockholders to be held on May 19, 2022 is incorporated by reference herein.

Item 11. Executive Compensation.

The information under the captions “Compensation Discussion & Analysis,” “Compensation Committee Report” and “Executive Compensation” in our definitive proxy statement for our annual meeting of stockholders to be held on May 19, 2022 is incorporated by reference herein.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.

The information under the caption “Outstanding Capital Stock” in our definitive proxy statement for our annual meeting of stockholders to be held on May 19, 2022 is incorporated by reference herein.

Item 13. Certain Relationships and Related Transactions, and Director Independence.

The information under the captions “Board of Directors” and “Transactions with Related Persons” in our definitive proxy statement for our annual meeting of stockholders to be held on May 19, 2022 is incorporated by reference herein.

Item 14. Principal Accounting Fees and Services.

The information under the caption “Audit Committee and Auditors — Our Independent Registered Public Accounting Firm and Audit Fees” in our definitive proxy statement for our annual meeting of stockholders to be held on May 19, 2022 is incorporated by reference herein.

106

PART IV

Item 15. Exhibits, Financial Statement Schedules.

(a)The following documents are filed as a part of this report:

1.consolidated financial statements (see Item 8).

2.consolidated financial statement schedules.

All schedules have been omitted because they are inapplicable, not required, or the information is included elsewhere in the consolidated financial statements or notes thereto.

3.Exhibits.

Index to Exhibits

2.1	Indemnification Agreement, dated as of October 20, 2009, by and between the Company, NCI Group, Inc., Robertson-Ceco II Corporation, Clayton, Dubilier & Rice Fund VIII, L.P., CD&R Friends & Family Fund VIII, L.P. and Clayton, Dubilier & Rice, Inc. (filed as Exhibit 2.3 to the Company's Current Report on Form 8-K dated October 26, 2009 and incorporated by reference herein)
2.2	Securities Purchase Agreement by and among Nucor Insulated Panel Group Inc, Vulcraft Canada Inc., and Cornerstone Building Brands, Inc., dated as of June 5, 2021 (filed as Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended July 3, 2021 and incorporated by reference herein)
3.1	Third Amended and Restated Certificate of Incorporation of NCI Building Systems, Inc. (filed as Exhibit 3.2 to the Company's Current Report on Form 8-K dated May 28, 2019 and incorporated by reference herein)
3.2	Seventh Amended and Restated By-laws of Cornerstone Building Brands, Inc., effective as of May 23, 2019 (filed as Exhibit 3.1 to the Company's Current Report on Form 8-K dated May 28, 2019 and incorporated by reference herein)
4.1	Form of certificate representing shares of NCI’s common stock (filed as Exhibit 1 to the Company’s registration statement on Form 8-A filed with the SEC on July 20, 1998 and incorporated by reference herein)
4.2	Indenture, dated as of April 12, 2018, by and among Ply Gem Midco, Inc., as issuer, the subsidiary guarantors from time to time party thereto and Wilmington Trust, National Association, as trustee (filed as Exhibit 4.1 to the Company’s Current Report on Form 8-K dated November 20, 2018 and incorporated by reference herein)
4.3	First Supplemental Indenture, dated as of April 12, 2018, by and among Ply Gem Midco, Inc. and Wilmington Trust, National Association, as trustee (filed as Exhibit 4.2 to the Company’s Current Report on Form 8-K dated November 20, 2018 and incorporated by reference herein)
4.4	Second Supplemental Indenture, dated as of April 12, 2018, by and among Ply Gem Midco, Inc., the subsidiary guarantors party thereto and Wilmington Trust, National Association, as trustee (filed as Exhibit 4.3 to the Company’s Current Report on Form 8-K dated November 20, 2018 and incorporated by reference herein)
4.5	Third Supplemental Indenture, dated as of April 13, 2018, by and among Ply Gem Midco, Inc., the subsidiary guarantors party thereto and Wilmington Trust, National Association, as trustee (filed as Exhibit 4.4 to the Company’s Current Report on Form 8-K dated November 20, 2018 and incorporated by reference herein)
4.6	Fourth Supplemental Indenture, dated as of October 15, 2018, by and among Ply Gem Midco, Inc., the subsidiary guarantor party thereto and Wilmington Trust, National Association, as trustee (filed as Exhibit 4.5 to the Company’s Current Report on Form 8-K dated November 20, 2018 and incorporated by reference herein)
4.7	Fifth Supplemental Indenture, dated as of November 16, 2018, by and among the Company, the subsidiary guarantors party thereto and Wilmington Trust, National Association, as trustee (filed as Exhibit 4.6 to the Company’s Current Report on Form 8-K dated November 20, 2018 and incorporated by reference herein)
4.8	Sixth Supplemental Indenture, dated as of February 20, 2019, by and among the Company, the subsidiary guarantors party thereto and Wilmington Trust, National Association, as trustee (filed as Exhibit 4.1 to the Company’s Current Report on Form 8-K dated February 20,2019 and incorporated by reference herein)
4.9	Seventh Supplemental Indenture, dated as of May 29, 2020, by and among the Company, the subsidiary guarantors party thereto and Wilmington Trust, National Association, as trustee (filed as Exhibit 4.1 to the Company's Quarterly report on Form 10-Q for the quarter ended July 4, 2020 and incorporated by reference herein)
4.10	Eighth Supplemental Indenture, dated as of September 24, 2020, among the Company, the subsidiary guarantors listed on the signature pages thereto and Wilmington Trust, National Association, as trustee (filed as Exhibit 4.1 to the Company's Current report on Form 8-K dated September 24, 2020 and incorporated by reference herein)

107

*4.11	Ninth Supplemental Indenture, dated as of June 29, 2021, among the subsidiaries listed on Schedule 1 thereto, each a subsidiary guarantor, the Company, and each then-existing subsidiary guarantor under the indenture, and Wilmington Trust, National Association, as trustee
*4.12	Tenth Supplemental Indenture, dated as of January 6, 2022, among the subsidiaries listed on Schedule 1 thereto, each a subsidiary guarantor, the Company, and each then-existing subsidiary guarantor under the indenture, and Wilmington Trust, National Association, as trustee
4.13	Stockholders Agreement, dated November 16, 2018, by and among NCI Building Systems, Inc., Clayton, Dubilier & Rice Fund VIII, L.P., CD&R Friends & Family Fund VIII, L.P., CD&R Pisces Holdings, L.P., Atrium Intermediate Holdings, LLC, GGC BP Holdings, LLC and AIC Finance Partnership, L.P. (filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K dated November 20, 2018 and incorporated by reference herein)
4.14	Registration Rights Agreement, dated November 16, 2018, by and among NCI Building Systems, Inc., Clayton, Dubilier & Rice Fund VIII, L.P., CD&R Friends & Family Fund VIII, L.P., CD&R Pisces Holdings, L.P., Atrium Intermediate Holdings, LLC, GGC BP Holdings, LLC, AIC Finance Partnership, L.P. (filed as Exhibit 10.2 to the Company’s Current Report on Form 8-K dated November 20, 2018 and incorporated by reference herein)
4.15	Description of Cornerstone Building Brands, Inc. Securities (filed as Exhibit 4.13 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2020 and incorporated by reference herein)
†10.1	Form of Indemnification Agreement for Officers and Directors (filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K dated October 22, 2008 and incorporated by reference herein)
†10.2	Form of Director Indemnification Agreement (filed as Exhibit 10.7 to the Company’s Current Report on Form 8-K dated October 26, 2009 and incorporated by reference herein)
†10.3	NCI Senior Executive Bonus Plan (filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K dated February 26, 2014 and incorporated by reference herein)
†10.4	Form of Award Agreement for Director Stock Options (December 2015) (filed as Exhibit 10.6 to the Company’s Quarterly Report on Form 10-Q for the quarter ended January 31, 2016 and incorporated by reference herein)
†10.5	NCI Building Systems, Inc. Deferred Compensation Plan (as amended and restated effective January 31, 2016) (filed as Exhibit 10.7 to the Company’s Quarterly Report on Form 10-Q for the quarter ended January 31, 2016 and incorporated by reference herein)
†10.6	Form of Employment Agreement between NCI Building Systems, Inc. and named executive officers (filed as Exhibit 10.3 to the Company’s Quarterly Report on Form 10-Q for the quarter ended July 31, 2016 and incorporated by reference herein)
†10.7	Form of Employment Agreement between NCI Building Systems, Inc. and executive officers (filed as Exhibit 10.4 to the Company’s Quarterly Report on Form 10-Q for the quarter ended July 31, 2016 and incorporated by reference herein)
†10.8	Amended and Restated NCI Building Systems, Inc. 2003 Long-Term Stock Incentive Plan, effective as of January 27, 2018 (filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K dated March 02, 2018 and incorporated by reference herein)
10.9	Cash Flow Credit Agreement, dated as of April 12, 2018, by and among Ply Gem Midco, Inc., as borrower, the several banks and other financial institutions from time to time party thereto and JPMorgan Chase Bank, N.A., as administrative agent and collateral agent (filed as Exhibit 10.3 to the Company’s Current Report on Form 8-K dated November 20, 2018 and incorporated by reference herein)
10.10	First Amendment to Cash Flow Credit Agreement, dated as of November 14, 2018, by and among Ply Gem Midco, Inc., and JPMorgan Chase Bank, N.A., as administrative agent (filed as Exhibit 10.4 to the Company’s Current Report on Form 8-K dated November 20, 2018 and incorporated by reference herein)
10.11	Second Amendment to Cash Flow Credit Agreement, dated as of April 15, 2021, by and among the Company, the several banks and other financial institutions party thereto and JPMorgan Chase Bank, N.A., as administrative agent and collateral agent (filed as Exhibit 10.4 to the Company’s Current Report on Form 8-K dated April 21, 2021 and incorporated by reference herein)
10.12	Third Amendment to Cash Flow Credit Agreement, dated as of April 15, 2021, by and among the Company, the subsidiary guarantors party thereto, the several banks and other financial institutions party thereto and JPMorgan Chase Bank, N.A., as administrative agent and collateral agent (filed as Exhibit 10.5 to the Company’s Current Report on Form 8-K dated April 21, 2021 and incorporated by reference herein)
10.13	Increase Supplement to Cash Flow Credit Agreement, dated as of April 15, 2021, between the Company and the increasing lender party thereto (filed as Exhibit 10.6 to the Company’s Current Report on Form 8-K dated April 21, 2021 and incorporated by reference herein)

108

10.14	Lender Joinder Agreement, dated as of November 16, 2018, by and among Ply Gem Midco, Inc., the additional commitment lender party thereto and JPMorgan Chase Bank, N.A., as administrative agent (filed as Exhibit 10.5 to the Company’s Current Report on Form 8-K dated November 20, 2018 and incorporated by reference herein)
10.15	Cash Flow Guarantee and Collateral Agreement, dated as of April 12, 2018, by and among Ply Gem Midco, Inc., the guarantors from time to time party thereto and JPMorgan Chase Bank, N.A., as collateral agent and administrative agent (filed as Exhibit 10.6 to the Company’s Current Report on Form 8-K dated November 20, 2018 and incorporated by reference herein)
10.16	Cash Flow Joinder Agreement, dated as of November 16, 2018, by and among Ply Gem Midco, LLC, the Company, the subsidiary guarantors party thereto and JPMorgan Chase Bank, N.A., as administrative agent and collateral agent (filed as Exhibit 10.7 to the Company’s Current Report on Form 8-K dated November 20, 2018 and incorporated by reference herein)
10.17	ABL Credit Agreement, dated as of April 12, 2018, by and among Ply Gem Midco, Inc., as parent borrower, the subsidiary borrowers from time to time party thereto, the several banks and other financial institutions from time to time party thereto and UBS AG, Stamford Branch, as administrative agent and collateral agent (filed as Exhibit 10.8 to the Company’s Current Report on Form 8-K dated November 20, 2018 and incorporated by reference herein)
10.18	Amendment No. 1 to ABL Credit Agreement, dated as of August 7, 2018, by and among Ply Gem Midco, Inc., the subsidiary borrowers party thereto, the lenders and issuing lenders party thereto and UBS AG, Stamford Branch, as administrative agent and collateral agent (filed as Exhibit 10.9 to the Company’s Current Report on Form 8-K dated November 20, 2018 and incorporated by reference herein)
10.19	Amendment No. 2 to ABL Credit Agreement, dated as of October 15, 2018, by and among Ply Gem Midco, Inc., the subsidiary borrowers party thereto, the incremental lender party thereto and UBS AG, Stamford Branch, as administrative agent, collateral agent and swingline lender (filed as Exhibit 10.10 to the Company’s Current Report on Form 8-K dated November 20, 2018 and incorporated by reference herein)
10.20	Amendment No. 3 to ABL Credit Agreement, dated as of November 14, 2018, by and among Ply Gem Midco, Inc., the subsidiary borrowers party thereto, the lenders and issuing lenders party thereto and UBS AG, Stamford Branch, as administrative agent and collateral agent (filed as Exhibit 10.11 to the Company’s Current Report on Form 8-K dated November 20, 2018 and incorporated by reference herein)
10.21	Amendment No. 4 to ABL Credit Agreement, dated as of November 16, 2018, by and among Ply Gem Midco, Inc., the subsidiary borrowers party thereto, the incremental lenders party thereto and UBS AG, Stamford Branch, as administrative agent, collateral agent and swingline lender (filed as Exhibit 10.12 to the Company’s Current Report on Form 8-K dated November 20, 2018 and incorporated by reference herein)
10.22	Amendment No. 5 to ABL Credit Agreement, dated as of September 4, 2020, by and among the Company, the subsidiary borrowers party thereto, the lenders and issuing lenders party thereto and UBS AG, Stamford Branch, as administrative agent and collateral agent (filed as Exhibit 10.14 to the Company’s Current Report on Form 8-K dated April 21, 2021 and incorporated by reference herein)
10.23	Amendment No. 6 to ABL Credit Agreement, dated as of April 15, 2021, by and among Cornerstone Building Brands, Inc., the subsidiary borrowers party thereto, the several banks and other financial institutions party thereto party thereto and UBS AG, Stamford Branch, as administrative agent and collateral agent (filed as Exhibit 10.15 to the Company’s Current Report on Form 8-K dated April 21, 2021 and incorporated by reference herein)
10.24	ABL U.S. Guarantee and Collateral Agreement, dated as of April 12, 2018, by and among Ply Gem Midco, Inc., the U.S. subsidiary borrowers from time to time party thereto, the guarantors from time to time party thereto and UBS AG, Stamford Branch, as collateral agent and administrative agent (filed as Exhibit 10.13 to the Company’s Current Report on Form 8-K dated November 20, 2018 and incorporated by reference herein)
10.25	ABL Canadian Guarantee and Collateral Agreement, dated as of April 12, 2018, by and among the Canadian borrowers from time to time party thereto, the guarantors from time to time party thereto and UBS AG, Stamford Branch, as collateral agent and administrative agent (filed as Exhibit 10.14 to the Company’s Current Report on Form 8-K dated November 20, 2018 and incorporated by reference herein)
10.26	ABL Joinder Agreement, dated as of November 16, 2018, by and among Ply Gem Midco, LLC, the Company, the subsidiary guarantors party thereto and UBS AG, Stamford Branch, as administrative agent and collateral agent (filed as Exhibit 10.15 to the Company’s Current Report on Form 8-K dated November 20, 2018 and incorporated by reference herein)
†10.27	Form of Award Agreement for Restricted Stock Units, Performance Share Awards, and Stock Options for Key Employees (November 2018 awards) (filed as Exhibit 10.1 to the Company's Annual Report on Form 10-K/A for the year ended October 28, 2018 and incorporated by reference herein)
†10.28	Employment Agreement by and between NCI Building Systems, Inc. and James Metcalf, dated November 16, 2018 (filed as Exhibit 10.31 to the Company's Annual Report on Form 10-K for the year ended December 31, 2019 and incorporated by reference herein)

109

†10.29	Employment Agreement by and between Cornerstone Building Brands, Inc., its wholly-owned subsidiary, Ply Gem Industries, Inc., and Jeffrey S. Lee, dated June 17, 2019 (filed as Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended June 29, 2019 and incorporated by reference herein)
†10.30	First Amendment to the 2003 Long-Term Stock Incentive Plan, as amended (as included in the Company's Proxy Statement on Schedule 14A dated April 22, 2019 and incorporated by reference herein)
†10.31	Second Amendment to the 2003 Long-Term Stock Incentive Plan, as amended (as included in the Company’s Proxy Statement on Schedule 14A dated April 29, 2020 and incorporated by reference herein)
†10.32	Employment Agreement, effective September 21, 2020, between Cornerstone Building Brands, Inc., its wholly-owned subsidiary, Ply Gem Industries, Inc., and James F. Keppler (filed as Exhibit 10.1 to the Company's Quarterly Report on Form 10-Q for the quarter ended October 3, 2020 and incorporated by reference herein)
†10.33	Letter Agreement between Cornerstone Building Brands, Inc. and Mr. Todd Moore, dated December 21, 2020 (filed as Exhibit 10.35 to the Company's Annual Report on Form 10-K for the year ended December 31, 2020 and incorporated by reference herein)
†10.34	Employment Agreement entered into as of February 25, 2021, between Cornerstone Building Brands, Inc., its wholly-owned subsidiary, Ply Gem Industries, Inc., and Alena S. Brenner (filed as Exhibit 10.1 to the Company's Quarterly Report on Form 10-Q for the quarter ended April 3, 2021 and incorporated by reference herein)
†10.35	Retirement Agreement between Cornerstone Building Brands, Inc. and James S. Metcalf, dated September 20, 2021 (filed as Exhibit 10.1 to the Company's Quarterly Report on Form 10-Q for the quarter ended October 2, 2021 and incorporated by reference herein)
†10.36	Employment Agreement between Cornerstone Building Brands, Inc, and Rose Lee, dated August 3, 2021 (filed as Exhibit 10.2 to the Company's Quarterly Report on Form 10-Q for the quarter ended October 2, 2021 and incorporated by reference herein)
*21.1	List of Subsidiaries
*23.1	Consent of Independent Registered Public Accounting Firm - Grant Thornton LLP
*24.1	Powers of Attorney
*31.1	Rule 13a-14(a)/15d-14(a) Certifications (Section 302 of the Sarbanes-Oxley Act of 2002)
*31.2	Rule 13a-14(a)/15d-14(a) Certifications (Section 302 of the Sarbanes-Oxley Act of 2002)
**32.1	Certifications pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code (Section 906 of the Sarbanes-Oxley Act of 2002)
**32.2	Certifications pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code (Section 906 of the Sarbanes-Oxley Act of 2002)
*101.INS	Inline XBRL Instance Document
*101.SCH	Inline XBRL Taxonomy Extension Schema Document
*101.CAL	Inline XBRL Taxonomy Extension Calculation Linkbase Document
*101.DEF	Inline XBRL Taxonomy Extension Definition Linkbase Document
*101.LAB	Inline XBRL Taxonomy Extension Labels Linkbase Document
*101.PRE	Inline XBRL Taxonomy Extension Presentation Linkbase Document
104	Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

*	Filed herewith
**	Furnished herewith
†	Management contracts or compensatory plans or arrangements

Item 16. Form 10-K Summary.

None.

110

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

CORNERSTONE BUILDING BRANDS, INC.
By:	/s/ Rose Lee
	Rose Lee, Chief Executive Officer

Date: March 1, 2022

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated per Form 10-K.

Name	Title	Date
/s/ Rose Lee	Chief Executive Officer and Director (Principal Executive Officer)	March 1, 2022
Rose Lee
/s/ Jeffrey S. Lee	Executive Vice President, Chief Financial Officer and Chief Accounting Officer (Principal Financial Officer and Principal Accounting Officer)	March 1, 2022
Jeffrey S. Lee
*	Executive Chairman of the Board	March 1, 2022
James S. Metcalf
*	Director	March 1, 2022
Kathleen J. Affeldt
*	Director	March 1, 2022
George L. Ball
*	Director	March 1, 2022
Gary L. Forbes
*	Director	March 1, 2022
John J. Holland
*	Director	March 1, 2022
William E. Jackson
*	Director	March 1, 2022
Wilbert W. James, Jr.
*	Director	March 1, 2022
Daniel Janki
*	Director	March 1, 2022
John Krenicki
*	Director	March 1, 2022
Timothy O’Brien
*	Director	March 1, 2022
Judith Reinsdorf
*	Director	March 1, 2022
Nathan K. Sleeper
*	Director	March 1, 2022
Jonathan L. Zrebiec

*By:	/s/ Rose Lee
	Rose Lee, Attorney-in-Fact

111

EX-4.11

Exhibit 4.11

Ninth Supplemental Indenture

Ninth SUPPLEMENTAL INDENTURE, dated as of June 29, 2021 (this “Supplemental Indenture”), among the Subsidiaries listed on Schedule 1 hereto (the “Subsidiary Guarantors” and each, a “Subsidiary Guarantor”), Cornerstone Building Brands, Inc. (formerly known as NCI Building Systems, Inc., as successor by merger to Ply Gem Midco, LLC (formerly known as Ply Gem Midco, Inc., and formerly known as Pisces Midco, Inc.)), a Delaware corporation (the “Company”), and each other then-existing Subsidiary Guarantor under the Indenture referred to below (the “Existing Guarantors”), and Wilmington Trust, National Association, as Trustee under the Indenture referred to below (the “Trustee”).

W I T N E S S E T H:

WHEREAS, the Company, any Existing Guarantors and the Trustee have heretofore become parties to an Indenture, dated as of April 12, 2018 (as supplemented by the First Supplemental Indenture, dated as of April 12, 2018, the Second Supplemental Indenture, dated as of April 12, 2018, the Third Supplemental Indenture, dated as of April 13, 2018, the Fourth Supplemental Indenture, dated as of October 15, 2018, the Fifth Supplemental Indenture, dated as of November 16, 2018, the Sixth Supplemental Indenture, dated as of February 20, 2019, the Seventh Supplemental Indenture, dated as of March 29, 2020 and the Eighth Supplemental Indenture, dated as of September 24, 2020, and as further amended, supplemented, waived or otherwise modified, the “Indenture”), providing for the issuance of Notes in series;

WHEREAS, Section 1308 of the Indenture provides that the Company is required to cause the Subsidiary Guarantors to execute and deliver to the Trustee a supplemental indenture pursuant to which the Subsidiary Guarantors shall guarantee the Company’s Subsidiary Guaranteed Obligations under the Notes pursuant to a Subsidiary Guarantee on the terms and conditions set forth herein and in Article XIII of the Indenture;

WHEREAS, each Subsidiary Guarantor desires to enter into such supplemental indenture for good and valuable consideration, including substantial economic benefit in that the financial performance and condition of such Subsidiary Guarantor is dependent on the financial performance and condition of the Company, the obligations hereunder of which such Subsidiary Guarantor has guaranteed, and on such Subsidiary Guarantor’s access to working capital through the Company’s access to revolving credit borrowings and term borrowings under the Senior Credit Agreements; and

WHEREAS, pursuant to Section 901 of the Indenture, the parties hereto are authorized to execute and deliver this Supplemental Indenture to amend the Indenture, without the consent of any Holder.

NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the Subsidiary Guarantors, the Company, the Existing Guarantors and the Trustee mutually covenant and agree for the benefit of the Holders of the Notes as follows:

1. Defined Terms. As used in this Supplemental Indenture, terms defined in the Indenture or in the preamble or recital hereto are used herein as therein defined. The words “herein,” “hereof” and “hereby” and other words of similar import used in this Supplemental Indenture refer to this Supplemental Indenture as a whole and not to any particular section hereof.

2. Agreement to Guarantee. Each Subsidiary Guarantor hereby agrees, jointly and severally with the Existing Guarantors and fully and unconditionally, to guarantee the Subsidiary Guaranteed Obligations under the Indenture and the Notes on the terms and subject to the conditions set forth in Article XIII of the Indenture and to be bound by (and shall be entitled to the benefits of) all other applicable provisions of the Indenture as a Subsidiary Guarantor.

3. Termination, Release and Discharge. Each Subsidiary Guarantor’s Subsidiary Guarantee shall terminate and be of no further force or effect, and each Subsidiary Guarantor shall be released and discharged from all obligations in respect of such Subsidiary Guarantee, as and when provided in Section 1303 of the Indenture.

4. Parties. Nothing in this Supplemental Indenture is intended or shall be construed to give any Person, other than the Holders and the Trustee, any legal or equitable right, remedy or claim under or in respect of each Subsidiary Guarantor’s Subsidiary Guarantee or any provision contained herein or in Article XIII of the Indenture.

5. Governing Law. THIS SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. THE TRUSTEE, THE COMPANY, ANY OTHER OBLIGOR IN RESPECT OF THE NOTES AND (BY THEIR ACCEPTANCE OF THE NOTES) THE HOLDERS AGREE TO SUBMIT TO THE JURISDICTION OF ANY UNITED STATES FEDERAL OR STATE COURT LOCATED IN THE BOROUGH OF MANHATTAN, IN THE CITY OF NEW YORK IN ANY ACTION OR PROCEEDING ARISING OUT OF OR RELATING TO THIS SUPPLEMENTAL INDENTURE.

6. Ratification of Indenture; Supplemental Indentures Part of Indenture. Except as expressly amended hereby, the Indenture is in all respects ratified and confirmed and all the terms, conditions and provisions thereof shall remain in full force and effect. This Supplemental Indenture shall form a part of the Indenture for all purposes, and every Holder of Notes heretofore or hereafter authenticated and delivered shall be bound hereby. The Trustee makes no representation or warranty as to the validity or sufficiency of this Supplemental Indenture or as to the accuracy of the recitals to this Supplemental Indenture.

7. Counterparts. The parties hereto may sign one or more copies of this Supplemental Indenture in counterparts, all of which together shall constitute one and the same agreement.

8. Headings. The section headings herein are for convenience of reference only and shall not be deemed to alter or affect the meaning or interpretation of any provisions hereof.

IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed as of the date first above written.

CORNERSTONE BUILDING BRANDS, INC.
By:	/s/ Alena S. Brenner
	Name: Alena S. Brenner
	Title: Executive Vice President\, General
	Counsel and Corporate Secretary

SUBSIDIARY GUARANTORS:
DINGO NEWCO, LLC
By:	/s/ Alena S. Brenner
	Name: Alena S. Brenner
	Title: Executive Vice President\, General
	Counsel and Corporate Secretary
IGUANA NEWCO, LLC
By:	/s/ Alena S. Brenner
	Name: Alena S. Brenner
	Title: Executive Vice President\, General
	Counsel and Corporate Secretary
PRIME WINDOW, LLC
By:	/s/ Alena S. Brenner
	Name: Alena S. Brenner
	Title: Executive Vice President\, General
	Counsel and Corporate Secretary

	WILMINGTON TRUST, NATIONAL
	ASSOCIATION, as Trustee
By:	/s/ Barry D. Somrock
	Name: Barry D. Somrock
	Title: Vice President

.

SCHEDULE 1

	Subsidiary Guarantors	Jurisdiction or Organization
1.	Dingo NewCo, LLC	Delaware
2.	Iguana NewCo, LLC	Delaware
3.	Prime Window Systems, LLC	Delaware

EX-4.12

Exhibit 4.12

Tenth Supplemental Indenture

TENTH SUPPLEMENTAL INDENTURE, dated as of January 6, 2022 (this “Supplemental Indenture”), among the Subsidiaries listed on Schedule 1 hereto (the “Subsidiary Guarantors” and each, a “Subsidiary Guarantor”), Cornerstone Building Brands, Inc. (formerly known as NCI Building Systems, Inc., as successor by merger to Ply Gem Midco, LLC (formerly known as Ply Gem Midco, Inc., and formerly known as Pisces Midco, Inc.)), a Delaware corporation (the “Company”), and each other then-existing Subsidiary Guarantor under the Indenture referred to below (the “Existing Guarantors”), and Wilmington Trust, National Association, as Trustee under the Indenture referred to below (the “Trustee”).

W I T N E S S E T H:

WHEREAS, the Company, any Existing Guarantors and the Trustee have heretofore become parties to an Indenture, dated as of April 12, 2018 (as supplemented by the First Supplemental Indenture, dated as of April 12, 2018, the Second Supplemental Indenture, dated as of April 12, 2018, the Third Supplemental Indenture, dated as of April 13, 2018, the Fourth Supplemental Indenture, dated as of October 15, 2018, the Fifth Supplemental Indenture, dated as of November 16, 2018, the Sixth Supplemental Indenture, dated as of February 20, 2019, the Seventh Supplemental Indenture, dated as of March 29, 2020, the Eighth Supplemental Indenture, dated as of September 24, 2020, and the Ninth Supplemental Indenture, dated as of June 29, 2021, and as further amended, supplemented, waived or otherwise modified, the “Indenture”), providing for the issuance of Notes in series;

WHEREAS, Section 1308 of the Indenture provides that the Company is required to cause the Subsidiary Guarantors to execute and deliver to the Trustee a supplemental indenture pursuant to which the Subsidiary Guarantors shall guarantee the Company’s Subsidiary Guaranteed Obligations under the Notes pursuant to a Subsidiary Guarantee on the terms and conditions set forth herein and in Article XIII of the Indenture;

WHEREAS, each Subsidiary Guarantor desires to enter into such supplemental indenture for good and valuable consideration, including substantial economic benefit in that the financial performance and condition of such Subsidiary Guarantor is dependent on the financial performance and condition of the Company, the obligations hereunder of which such Subsidiary Guarantor has guaranteed, and on such Subsidiary Guarantor’s access to working capital through the Company’s access to revolving credit borrowings and term borrowings under the Senior Credit Agreements; and

WHEREAS, pursuant to Section 901 of the Indenture, the parties hereto are authorized to execute and deliver this Supplemental Indenture to amend the Indenture, without the consent of any Holder.

NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the Subsidiary Guarantors, the Company, the Existing Guarantors and the Trustee mutually covenant and agree for the benefit of the Holders of the Notes as follows:

1. Defined Terms. As used in this Supplemental Indenture, terms defined in the Indenture or in the preamble or recital hereto are used herein as therein defined. The words “herein,” “hereof” and “hereby” and other words of similar import used in this Supplemental Indenture refer to this Supplemental Indenture as a whole and not to any particular section hereof.

2. Agreement to Guarantee. Each Subsidiary Guarantor hereby agrees, jointly and severally with the Existing Guarantors and fully and unconditionally, to guarantee the Subsidiary Guaranteed Obligations under the Indenture and the Notes on the terms and subject to the conditions set forth in Article XIII of the Indenture and to be bound by (and shall be entitled to the benefits of) all other applicable provisions of the Indenture as a Subsidiary Guarantor.

3. Termination, Release and Discharge. Each Subsidiary Guarantor’s Subsidiary Guarantee shall terminate and be of no further force or effect, and each Subsidiary Guarantor shall be released and discharged from all obligations in respect of such Subsidiary Guarantee, as and when provided in Section 1303 of the Indenture.

4. Parties. Nothing in this Supplemental Indenture is intended or shall be construed to give any Person, other than the Holders and the Trustee, any legal or equitable right, remedy or claim under or in respect of each Subsidiary Guarantor’s Subsidiary Guarantee or any provision contained herein or in Article XIII of the Indenture.

5. Governing Law. THIS SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. THE TRUSTEE, THE COMPANY, ANY OTHER OBLIGOR IN RESPECT OF THE NOTES AND (BY THEIR ACCEPTANCE OF THE NOTES) THE HOLDERS AGREE TO SUBMIT TO THE JURISDICTION OF ANY UNITED STATES FEDERAL OR STATE COURT LOCATED IN THE BOROUGH OF MANHATTAN, IN THE CITY OF NEW YORK IN ANY ACTION OR PROCEEDING ARISING OUT OF OR RELATING TO THIS SUPPLEMENTAL INDENTURE.

6. Ratification of Indenture; Supplemental Indentures Part of Indenture. Except as expressly amended hereby, the Indenture is in all respects ratified and confirmed and all the terms, conditions and provisions thereof shall remain in full force and effect. This Supplemental Indenture shall form a part of the Indenture for all purposes, and every Holder of Notes heretofore or hereafter authenticated and delivered shall be bound hereby. The Trustee makes no representation or warranty as to the validity or sufficiency of this Supplemental Indenture or as to the accuracy of the recitals to this Supplemental Indenture.

7. Counterparts. The parties hereto may sign one or more copies of this Supplemental Indenture in counterparts, all of which together shall constitute one and the same agreement.

8. Headings. The section headings herein are for convenience of reference only and shall not be deemed to alter or affect the meaning or interpretation of any provisions hereof.

IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed as of the date first above written.

CORNERSTONE BUILDING BRANDS, INC.
By:	/s/ Alena S. Brenner
	Name: Alena S. Brenner
	Title: Executive Vice President\, General
	Counsel and Corporate Secretary

SUBSIDIARY GUARANTORS:
CASCADE WINDOWS, INC.
By:	/s/ Alena S. Brenner
	Name: Alena S. Brenner
	Title: Executive Vice President\, General
	Counsel and Corporate Secretary
KWPI HOLDINGS CORP.
By:	/s/ Alena S. Brenner
	Name: Alena S. Brenner
	Title: Executive Vice President\, General
	Counsel and Corporate Secretary
REED’S METALS OF ALABAMA, LLC
By:	/s/ Alena S. Brenner
	Name: Alena S. Brenner
	Title: Executive Vice President\, General
	Counsel and Corporate Secretary
REED’S METALS, LLC
By:	/s/ Alena S. Brenner
	Name: Alena S. Brenner
	Title: Executive Vice President\, General
	Counsel and Corporate Secretary

UCC INTERMEDIATE HOLDINGS, INC.
By:	/s/ Alena S. Brenner
	Name: Alena S. Brenner
	Title: Executive Vice President\, General
	Counsel and Corporate Secretary
UNION CORRUGATING COMPANY
By:	/s/ Alena S. Brenner
	Name: Alena S. Brenner
	Title: Executive Vice President\, General
	Counsel and Corporate Secretary
UNION CORRUGATING COMPANY
	HOLDINGS, INC.
By:	/s/ Alena S. Brenner
	Name: Alena S. Brenner
	Title: Executive Vice President\, General
	Counsel and Corporate Secretary
WINDOW PRODUCTS, INC.
By:	/s/ Alena S. Brenner
	Name: Alena S. Brenner
	Title: Executive Vice President\, General
	Counsel and Corporate Secretary

SCHEDULE 1

	Subsidiary Guarantors	Jurisdiction or Organization
1.	Cascade Windows, Inc.	Delaware
2.	KWPI Holdings Corp	Delaware
3.	Window Products, Inc.	Washington
4.	Union Corrugating Company Holdings, Inc.	Delaware
5.	UCC Intermediate Holdings, Inc.	Delaware
6.	Union Corrugating Company	North Carolina
7.	Reed's Metals, LLC	Delaware
8.	Reed's Metals of Alabama, LLC	Delaware

EX-21.1

Exhibit 21.1

Cornerstone Building Brands, Inc.

List of Subsidiaries

Alenco Building Products Management, L.L.C.	Delaware
Alenco Extrusion GA, L.L.C.	Delaware
Alenco Extrusion Management, L.L.C.	Delaware
Alenco Holding Corporation	Delaware
Alenco Interests, L.L.C.	Delaware
Alenco Trans, Inc.	Delaware
Alenco Window GA, L.L.C.	Delaware
Aluminum Scrap Recycle, L.L.C.	Delaware
American Screen Manufacturers, Inc.	Delaware
Atrium Corporation	Delaware
Atrium Extrusion Systems, Inc.	Delaware
Atrium Intermediate Holdings, Inc.	Delaware
Atrium Parent, Inc.	Delaware
Atrium Windows and Doors, Inc.	Delaware
AWC Arizona, Inc.	Delaware
AWC Holding Company	Delaware
Briden Acquisition, LLC	Delaware
Brock Doors & Windows Ltd.	Ontario, Canada
Brockmeyer Acquisition, LLC	Delaware
Building Systems de Mexico, S.A. de C.V.	Mexico
Canyon Acquisition, LLC	Delaware
Cascade Windows, Inc.	Delaware
CENTRIA	Pennsylvania General Partnership
CENTRIA, Inc.	Delaware
CENTRIA Services Group, LLC	Pennsylvania
Champion Window, Inc.	Delaware
Cornerstone Latin American Services, S.R.L.	Costa Rica
Environmental Materials, Inc.	Delaware
Environmental Materials, LLC	Delaware
Environmental Materials L.P.	Delaware
Environmental Stoneworks, LLC	Delaware
Environmental Stucco LLC	Delaware
Foundation Labs by Ply Gem, LLC	Delaware
Gienow Canada Inc.	Alberta, Canada
Glazing Industries Management, L.L.C.	Delaware
Great Lakes Window, Inc.	Ohio
Kleary Masonry, Inc.	California
Kroy Building Products, Inc.	Delaware
KWPI Holdings Corp.	Delaware
Mastic Home Exteriors, Inc.	Ohio
Mitten Inc.	Ontario, Canada
MW Manufacturers Inc.	Delaware
MWM Holding, Inc.	Delaware

Napco, Inc.	Delaware
NCI Group, Inc.	Nevada
New Alenco Extrusion, Ltd.	Texas
New Alenco Window, Ltd.	Texas
New Glazing Industries, Ltd.	Texas
PBCS Acquisition, LLC	Delaware
Prime Window Systems, LLC	Delaware
Ply Gem Holdings, Inc.	Delaware
Ply Gem Industries, Inc.	Delaware
Ply Gem Pacific Windows Corporation	Delaware
Ply Gem Specialty Products, LLC	Delaware
Reed's Metals, LLC	Delaware
Reed's Metals of Alabama, LLC	Delaware
Robertson-Ceco II Corporation	Delaware
Schuylkill Stone, LLC	Delaware
Silver Line Building Products LLC	Delaware
SimEx, Inc.	West Virginia
Simonton Building Products LLC	Delaware
Simonton Industries, Inc.	California
Simonton Windows & Doors, Inc.	Delaware
Simonton Windows, Inc.	West Virginia
St. Croix Acquisition, LLC	Delaware
Steelbuilding.com, LLC	Delaware
Talus Systems, LLC	Delaware
Thermal Industries, Inc.	Delaware
UCC Intermediate Holdings, Inc.	Delaware
Union Corrugating Company	North Carolina
Union Corrugating Company Holdings, Inc.	Delaware
Van Well Acquisition, LLC	Delaware
Variform, Inc.	Missouri
Window Products, Inc.	Washington

EX-23.1

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We have issued our reports dated March 1, 2022, with respect to the consolidated financial statements and internal control over financial reporting included in the Annual Report of Cornerstone Building Brands, Inc. on Form 10-K for the year ended December 31, 2021. We consent to the incorporation by reference of said reports in the Registration Statements of Cornerstone Building Brands, Inc. on Forms S-8 (File No. 333-186467, File No. 333-176737, File No. 333-193057, File No. 333-173417, File No. 333-172822, File No. 333-166279, File No. 333-162568, File No. 333-139983, File No. 333-124266, File No. 333-111142, File No. 333-111139, File No. 333-34899, File No. 333-14957, File No. 333-12921, File No. 333-225973, File No. 333-225974, File No. 333-224001, File No. 333-228456, File No. 333-233257, File No. 333-248408 and File No. 333-259380) and on Forms S-3 (File No. 333-210467, File No. 333-229743 and File No. 333-248409).

/s/ GRANT THORNTON LLP

Raleigh, North Carolina

March 1, 2022

EX-24.1

Exhibit 24.1

CORNERSTONE BUILDING BRANDS, INC.

Power of Attorney

WHEREAS, CORNERSTONE BUILDING BRANDS, INC., a Delaware corporation (the “Company”), intends to file with the Securities and Exchange Commission (the “Commission”) pursuant to the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission promulgated thereunder, its Annual Report on Form 10-K, together with any and all exhibits, documents and other instruments and documents necessary, advisable or appropriate in connection therewith, including any amendments thereto (the “Form 10-K”);

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Rose Lee, Jeffrey S. Lee and Alena S. Brenner, and each of them severally, his or her true and lawful attorney or attorneys-in-fact and agents, with full power to act with or without the others and with full power of substitution and resubstitution, to execute in his or her name, place and stead, in any and all capacities, this Form 10-K and any or all amendments to this Form 10-K and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Commission, granting unto said attorneys-in-fact and agents and each of them full power and authority, to do and perform in the name and on behalf of the undersigned, in any and all capacities, each and every act and thing necessary or desirable to be done in and about the premises, to all intents and purposes and as fully as they might or could do in person, hereby ratifying, approving and confirming all that said attorneys-in-fact and agents or their substitutes may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities indicated as of the 1st day of March, 2022.

Signature	Title
/s/ James S. Metcalf	Executive Chairman of the Board
James S. Metcalf
/s/ Kathleen J. Affeldt	Director
Kathleen J. Affeldt
/s/ George L. Ball	Director
George L. Ball
/s/ Gary L. Forbes	Director
Gary L. Forbes
/s/ John J. Holland	Director
John J. Holland
/s/ William E. Jackson	Director
William E. Jackson
/s/ Wilbert W. James, Jr	Director
Wilbert W. James, Jr
/s/ Daniel Janki	Director
Daniel Janki
/s/ John Krenicki	Director
John Krenicki
/s/ Timothy O’Brien	Director
Timothy O’Brien
/s/ Judith Reinsdorf	Director
Judith Reinsdorf
/s/ Nathan K. Sleeper	Director
Nathan K. Sleeper
/s/ Jonathan L. Zrebiec	Director
Jonathan L. Zrebiec

EX-31.1

Exhibit 31.1

RULE 13a-14(a)/15d-14(a) CERTIFICATIONS

I, Rose Lee, certify that

1.I have reviewed this annual report on Form 10-K of Cornerstone Building Brands, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: March 1, 2022

/s/ Rose Lee

Rose Lee

President and Chief Executive Officer

EX-31.2

Exhibit 31.2

RULE 13a-14(a)/15d-14(a) CERTIFICATIONS

I, Jeffrey S. Lee, certify that:

1.I have reviewed this annual report on Form 10-K of Cornerstone Building Brands, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: March 1, 2022

/s/ Jeffrey S. Lee

Jeffrey S. Lee

Executive Vice President, Chief Financial Officer and Chief Accounting Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the annual report on Form 10-K of Cornerstone Building Brands, Inc. (the “Company”) for the period ended December 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Rose Lee, Chief Executive Officer of the Company, hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.I have reviewed this Report of Cornerstone Building Brands, Inc.;

2.This Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

3.The information contained in this Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: March 1, 2022

/s/ Rose Lee

Rose Lee

President and Chief Executive Officer

A signed original of this written statement required by Section 906 has been provided to Cornerstone Building Brands, Inc. and will be retained by Cornerstone Building Brands, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

These Certifications shall not be deemed to be “filed” or part of the Report or incorporated by reference into any of the registrant’s filings with the Securities and Exchange Commission by implication or by any reference in any such filing to the Report.

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the annual report on Form 10-K of Cornerstone Building Brands, Inc. (the “Company”) for the period ended December 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Jeffrey S. Lee, Chief Financial Officer of the Company, hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.I have reviewed this Report of Cornerstone Building Brands, Inc.;

2.This Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

3.The information contained in this Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: March 1, 2022

/s/ Jeffrey S. Lee

Jeffrey S. Lee

Executive Vice President, Chief Financial Officer and Chief Accounting Officer

A signed original of this written statement required by Section 906 has been provided to Cornerstone Building Brands, Inc. and will be retained by Cornerstone Building Brands, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

These Certifications shall not be deemed to be “filed” or part of the Report or incorporated by reference into any of the registrant’s filings with the Securities and Exchange Commission by implication or by any reference in any such filing to the Report.

XML

Cover Page - USD ($)	12 Months Ended
	Dec. 31, 2021	Feb. 22, 2022	Jul. 03, 2021
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	1-14315
Entity Registrant Name	Cornerstone Building Brands, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	76-0127701
Entity Address, Address Line One	5020 Weston Parkway
Entity Address, Address Line Two	Suite 400
Entity Address, City or Town	Cary
Entity Address, State or Province	NC
Entity Address, Postal Zip Code	27513
City Area Code	866
Local Phone Number	419-0042
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	CNR
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 966,794,672
Entity Common Stock, Shares Outstanding		127,001,002
Documents Incorporated by Reference	Certain information required by Part III of this Annual Report is incorporated by reference from the registrant’s definitive proxy statement for its 2022 annual meeting of stockholders to be filed with the Securities and Exchange Commission within 120 days of December 31, 2021.
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Entity Central Index Key	0000883902

XML

Audit Information	12 Months Ended
	Dec. 31, 2021
Audit Information [Abstract]
Auditor Firm ID	248
Auditor Name	GRANT THORNTON LLP
Auditor Location	Raleigh, North Carolina

XML

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Sales	$ 5,583,137	$ 4,617,369	$ 4,889,747
Cost of sales	4,384,062	3,567,049	3,801,328
Gross profit	1,199,075	1,050,320	1,088,419
Selling, general and administrative expenses	649,472	579,200	627,861
Intangible asset amortization	189,488	180,994	177,577
Restructuring and impairment charges, net	26,247	34,120	18,060
Strategic development and acquisition related costs	27,875	19,341	50,185
Gain on divestitures	(831,252)	0	0
Goodwill impairment	0	503,171	0
Income (loss) from operations	1,137,245	(266,506)	214,736
Interest income	205	1,364	674
Interest expense	(191,301)	(213,610)	(229,262)
Foreign exchange gain (loss)	(3,749)	1,068	2,054
Loss on extinguishment of debt	(42,234)	0	0
Other income, net	1,661	469	1,183
Income (loss) before income taxes	901,827	(477,215)	(10,615)
Provision for income taxes	235,968	5,563	4,775
Net income (loss)	665,859	(482,778)	(15,390)
Net income allocated to participating securities	(7,815)	0	0
Net income (loss) applicable to common shares	$ 658,044	$ (482,778)	$ (15,390)
Income (loss) per common share:
Basic (in dollars per share)	$ 5.22	$ (3.84)	$ (0.12)
Diluted (in dollars per share)	$ 5.19	$ (3.84)	$ (0.12)
Weighted average number of common shares outstanding:
Basic (in shares)	126,058	125,562	125,576
Diluted (in shares)	126,795	125,562	125,576

XML

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Comprehensive income (loss):
Net income (loss)	$ 665,859	$ (482,778)	$ (15,390)
Other comprehensive income (loss), net of tax:
Foreign exchange translation gains (losses)	6,594	17,254	3,211
Unrealized gain (loss) on derivative instruments, net of income tax of $(12,063), $10,985, and $7,176, respectively	14,054	(35,281)	(22,812)
Unrecognized actuarial gains (losses) on pension obligation, net of income tax of $(3,195), $231, and $513, respectively	4,093	(1,092)	(1,984)
Amount reclassified from Accumulated other comprehensive income (loss) into earnings	21,164	0	0
Other comprehensive income (loss)	45,905	(19,119)	(21,585)
Comprehensive income (loss)	$ 711,764	$ (501,897)	$ (36,975)

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) [Parenthetical] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Unrealized gain (loss) on derivative instruments, tax	$ (12,063)	$ 10,985	$ 7,176
Unrecognized actuarial gains (loss) on pension obligation, tax	$ (3,195)	$ 231	$ 513

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CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 394,447	$ 674,255
Restricted cash	2,211	6,223
Accounts receivable, net	685,316	554,649
Inventories, net	748,732	431,937
Income taxes receivable	14,514	39,379
Investments in debt and equity securities, at market	2,759	2,333
Prepaid expenses and other	135,701	77,751
Assets held for sale	3,400	4,644
Total current assets	1,987,080	1,791,171
Property, plant and equipment, net	612,295	631,821
Lease right-of-use assets	322,608	264,107
Goodwill	1,358,056	1,194,729
Intangible assets, net	1,524,635	1,584,604
Deferred income taxes	1,839	1,867
Other assets, net	20,947	10,191
Total assets	5,827,460	5,478,490
Current liabilities:
Current portion of long-term debt	26,000	25,600
Accounts payable	311,737	211,441
Accrued compensation and benefits	101,164	81,548
Accrued interest	19,775	25,485
Accrued income taxes	3,220	5,060
Current portion of lease liabilities	73,150	70,125
Other accrued expenses	320,389	247,893
Total current liabilities	855,435	667,152
Long-term debt	3,010,843	3,563,429
Deferred income taxes	252,173	269,792
Long-term lease liabilities	251,061	198,875
Other long-term liabilities	281,609	337,437
Total long-term liabilities	3,795,686	4,369,533
Stockholders’ equity:
Common stock, $0.01 par value, 200,000,000 shares authorized; 126,992,107 and 125,425,931 shares issued at December 31, 2021 and 2020, respectively; and 126,971,036 and 125,400,599 shares outstanding at December 31, 2021 and 2020, respectively	1,270	1,255
Additional paid-in capital	1,279,931	1,257,262
Accumulated deficit	(98,826)	(764,685)
Accumulated other comprehensive loss, net	(5,612)	(51,517)
Treasury stock, at cost; 21,071 and 25,332 shares at December 31, 2021 and 2020, respectively	(424)	(510)
Total stockholders’ equity	1,176,339	441,805
Total liabilities and stockholders’ equity	$ 5,827,460	$ 5,478,490

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CONSOLIDATED BALANCE SHEETS [Parenthetical] - $ / shares	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	126,992,107	125,425,931
Common stock, shares outstanding (in shares)	126,971,036	125,400,599
Treasury stock, shares (in shares)	21,071	25,332

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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net income (loss)	$ 665,859	$ (482,778)	$ (15,390)
Adjustments to reconcile net income (loss) to net cash from operating activities:
Depreciation and amortization	292,901	284,602	263,764
Non-cash interest expense	28,722	9,589	8,504
Share-based compensation expense	29,003	17,056	14,078
Loss on extinguishment of debt	42,234	0	0
Non-cash fair value premium on purchased inventory	0	0	16,249
Goodwill impairment	0	503,171	0
Asset impairment	22,210	4,905	0
Gain on divestitures	(831,252)	0	0
Loss (gain) on asset sales, net	0	(1,252)	321
Provision for credit losses	3,604	5,390	2,035
Deferred income taxes	(59,510)	(4,319)	(6,085)
Changes in operating assets and liabilities, net of effect of acquisitions and divestitures:
Accounts receivable	(156,066)	(61,976)	(38,242)
Inventories	(311,242)	7,927	91,822
Income taxes	24,865	14,146	(32,719)
Prepaid expenses and other	(56,768)	3,415	(10,279)
Accounts payable	72,260	4,663	(21,141)
Accrued expenses	36,944	8,276	(40,403)
Other, net	(19,651)	(4,398)	(2,906)
Net cash provided by (used in) operating activities	(215,887)	308,417	229,608
Cash flows from investing activities:
Acquisitions, net of cash acquired	(528,250)	(41,841)	(179,184)
Capital expenditures	(114,715)	(81,851)	(121,085)
Proceeds from divestitures, net of cash divested	1,187,307	0	0
Proceeds from sale of property, plant and equipment	5,124	3,569	5,511
Net cash provided by (used in) investing activities	549,466	(120,123)	(294,758)
Cash flows from financing activities:
Proceeds from ABL facility	190,000	345,000	290,000
Payments on ABL facility	(190,000)	(415,000)	(220,000)
Proceeds from cash flow revolver	0	115,000	0
Payments on cash flow revolver	0	(115,000)	0
Proceeds from term loan	108,438	0	0
Payments on term loan	(25,905)	(25,620)	(25,620)
Proceeds from senior notes	0	500,000	0
Payments on senior notes	(670,800)	0	0
Payments of financing costs	(13,187)	(6,731)	0
Purchases of treasury stock	0	(6,428)	0
Payments on tax receivable agreement	0	0	(24,906)
Payments on derivative financing obligations	(9,377)	0	0
Other	(6,418)	(1,566)	(1,934)
Net cash provided by (used in) financing activities	(617,249)	389,655	17,540
Effect of exchange rate changes on cash and cash equivalents	(150)	222	2,310
Net increase (decrease) in cash, cash equivalents and restricted cash	(283,820)	578,171	(45,300)
Cash, cash equivalents and restricted cash at beginning of period	680,478	102,307	147,607
Cash, cash equivalents and restricted cash at end of period	396,658	680,478	102,307
Supplemental disclosure of cash flow information:
Interest paid, net of amounts capitalized	178,330	196,770	240,063
Taxes paid (refunded), net (excluding tax receivable agreement payments)	$ 267,399	$ (3,316)	$ 51,001

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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Additional Paid-In Capital	Retained Earnings (Deficit)	Retained Earnings (Deficit) Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Stockholders' equity beginning balance (in shares) at Dec. 31, 2018			125,583,159					110,899
Stockholders' equity beginning balance at Dec. 31, 2018	$ 959,982		$ 1,256	$ 1,237,056	$ (265,839)		$ (10,813)	$ (1,678)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock purchases (in shares)								(256,857)
Treasury stock purchases	$ (1,934)							$ (1,934)
Retirement of treasury (in shares)	300,000		306,531					306,531
Retirement of treasury shares	$ 0		$ (3)	(2,420)				$ 2,423
Issuance of restricted stock (in shares)			819,641
Issuance of restricted stock	0		$ 8	(8)
Issuance of common stock for the Ply Gem merger (in shares)			13,731
Issuance of common stock for the Ply Gem merger	$ 167			167
Stock options exercised (in shares)	0
Other comprehensive loss	$ (21,585)						(21,585)
Deferred compensation obligation (in shares)								5,712
Deferred compensation obligation	0			(86)				$ 86
Share-based compensation	14,078			14,078
Net income (loss)	(15,390)				(15,390)
Stockholders' equity ending balance (in shares) at Dec. 31, 2019			126,110,000					55,513
Stockholders' equity ending balance at Dec. 31, 2019	935,318	$ (678)	$ 1,261	1,248,787	(281,229)	$ (678)	(32,398)	$ (1,103)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock purchases (in shares)								(1,298,253)
Treasury stock purchases	$ (7,994)							$ (7,994)
Retirement of treasury (in shares)	1,300,000		1,298,665					1,298,665
Retirement of treasury shares	$ 0		$ (13)	(7,982)				$ 7,995
Issuance of restricted stock (in shares)			614,596
Issuance of restricted stock	$ 0		$ 6	(6)
Stock options exercised (in shares)	0
Other comprehensive loss	$ (19,119)						(19,119)
Deferred compensation obligation (in shares)								29,769
Deferred compensation obligation	0		$ 1	(593)				$ 592
Share-based compensation	17,056			17,056
Net income (loss)	(482,778)				(482,778)
Stockholders' equity ending balance (in shares) at Dec. 31, 2020			125,425,931					25,332
Stockholders' equity ending balance at Dec. 31, 2020	441,805		$ 1,255	1,257,262	(764,685)		(51,517)	$ (510)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock purchases (in shares)								(612,011)
Treasury stock purchases	$ (9,685)							$ (9,685)
Retirement of treasury (in shares)	600,000		612,011					612,011
Retirement of treasury shares	$ 0		$ (6)	(9,679)				$ 9,685
Issuance of restricted stock (in shares)			1,861,991
Issuance of restricted stock	0		$ 18	(18)
Issuance of common stock for the Ply Gem merger (in shares)			15,220
Issuance of common stock for the Ply Gem merger	$ 185			185
Stock options exercised (in shares)	300,976		300,976
Stock options exercised	$ 3,267		$ 3	3,264
Other comprehensive loss	45,905						45,905
Deferred compensation obligation (in shares)								4,261
Deferred compensation obligation	0		$ 0	(86)				$ 86
Share-based compensation	29,003			29,003
Net income (loss)	665,859				665,859
Stockholders' equity ending balance (in shares) at Dec. 31, 2021			126,992,107					21,071
Stockholders' equity ending balance at Dec. 31, 2021	$ 1,176,339		$ 1,270	$ 1,279,931	$ (98,826)		$ (5,612)	$ (424)

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NATURE OF BUSINESS, RECENT DEVELOPMENTS, AND BASIS OF PRESENTATION

12 Months Ended

Dec. 31, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

NATURE OF BUSINESS, RECENT DEVELOPMENTS, AND BASIS OF PRESENTATION

NATURE OF BUSINESS, RECENT DEVELOPMENTS, AND BASIS OF PRESENTATION

Nature of Business

Cornerstone Building Brands, Inc. (together with its subsidiaries, unless otherwise indicated, the “Company,” “Cornerstone,” “we,” “us” or “our”) is the largest manufacturer of external building products in North America. Headquartered in Cary, North Carolina, the Company serves residential and commercial customers across new construction and the repair and remodel markets. The Company reports results under three reportable segments: Windows, Siding, and Commercial.

Recent Developments

On February 13, 2022, funds affiliated with Clayton Dubilier & Rice, LLC (“CD&R”) submitted a non-binding proposal to acquire all of the Company’s outstanding shares of common stock that CD&R does not already own for a purchase price of $24.65 in cash per share (the “CD&R Offer”).

The CD&R Offer stated that any transaction would be subject to (i) approval by a special committee (“Special Committee”) of our independent directors; and (ii) a vote in favor of the transaction by a majority of the voting power represented by the shares of our common stock owned by stockholders not affiliated with CD&R.

The board of directors of the Company (the “Board”) previously formed a Special Committee to evaluate and consider any potential or actual proposal from CD&R and any other alternative proposals or other strategic alternatives that may be available to the Company.

The CD&R Offer provides that CD&R reserves the right to withdraw or modify the CD&R Offer at any time and no legally binding obligation with respect to any transaction will exist unless and until mutually acceptable definitive documentation is executed and delivered by us and CD&R. There can be no assurance that the transaction proposed by CD&R or any related transaction will be completed or as to the terms of any such potential transaction, including with respect to pricing or timing.

Basis of Presentation

Our consolidated financial statements include the accounts of the Company and our majority-owned subsidiaries. All intercompany accounts, transactions and profits arising from consolidated entities have been eliminated in consolidation.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

(a) Use of Estimates. The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, revenues and expenses, and related disclosures of contingent assets and liabilities in the consolidated financial statements and accompanying notes. Estimates are used for, but not limited to, provisions for expected credit losses and inventory reserves, accounting for business combinations, valuation of reporting units for purposes of assessing goodwill for impairment, valuation of asset groups for impairment testing, accruals for employee benefits, general liability insurance, warranties and certain contingencies. We base our estimates on historical experience, market participant fair value considerations, projected future cash flows, and various other factors that are believed to be reasonable under the circumstances. Actual results could differ from those estimates. Given the uncertain economic climate and additional or unforeseen effects from the COVID-19 pandemic, these estimates have become more challenging, and actual results could differ materially from these estimates.

(b) Cash and Cash Equivalents. Cash equivalents are stated at cost plus accrued interest, which approximates fair value. Cash equivalents are highly liquid debt instruments with an original maturity of three months or less and may consist of time deposits with a number of commercial banks with high credit ratings, money market instruments, certificates of deposit and commercial paper. The Company’s policy allows it to also invest excess funds in no-load, open-end, management investment trusts (“mutual funds”) that invest exclusively in high quality money market instruments. As of December 31, 2021, the Company’s cash and cash equivalents were only invested in cash.

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the consolidated balance sheets that total the amounts shown in the consolidated statements of cash flows (in thousands):

	December 31, 2021		December 31, 2020
Cash and cash equivalents	$	394,447	$	674,255
Restricted cash(1)	2,211		6,223
Total cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows	$	396,658	$	680,478

(1)Restricted cash primarily relates to escrow balances held for an outstanding earn-out agreement as of December 31, 2020 and working capital and other indemnification agreements in both periods presented.

(c) Accounts Receivable and Related Allowance. The Company reports accounts receivable net of an allowance for expected credit losses. Trade accounts receivable are the result of sales of vinyl windows, aluminum windows, vinyl siding, metal siding, injection molded products, metal building products, metal coating, and other products and services to customers throughout the United States and Canada and affiliated territories, including international builders who resell to end users. Sales are primarily denominated in U.S. dollars. Credit sales do not normally require a pledge of collateral; however, various types of liens may be filed to enhance the collection process and we require payment prior to shipment for certain international shipments.

The Company establishes provisions for expected credit losses based on the Company’s assessment of the collectability of amounts owed to us by our customers. Such provisions are included in selling, general and administrative expenses. In establishing these reserves, the Company considers changes in the financial position of a customer, age of the accounts receivable balances, availability of security, unusual macroeconomic conditions, lien rights and bond rights as well as disputes, if any, with our customers. Our allowance for credit losses reflects reserves for customer receivables to reduce receivables to amounts expected to be collected. Interest on delinquent accounts receivable is included in the trade accounts receivable balance and recognized as interest income when earned and collectability is reasonably assured. Uncollectible accounts are written off when a settlement is reached for an amount that is less than the outstanding historical balance, all collection efforts have been exhausted and/or any legal action taken by the Company has concluded.

The following table represents the rollforward of the allowance for credit losses for the periods indicated (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Ending balance, prior period	$	13,313	$	9,962	$	10,270
Cumulative effect of accounting change(1)	—		678		—
Provision for expected credit losses	3,604		5,390		2,035
Amounts charged against allowance for credit losses, net of recoveries	(1,729)		(3,579)		(2,807)
Allowance for credit losses of acquired company at date of acquisition	269		862		464
Divestitures	(4,158)		—		—
Ending balance	$	11,299	$	13,313	$	9,962

(1)Cumulative effect of accounting change reflects the modified retrospective effect of adopting Accounting Standards Update (“ASU”) 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments

(d) Inventories. Inventories are stated at the lower of cost or net realizable value less allowance for inventory obsolescence using the First-In, First-Out Method (“FIFO”).

The components of inventory are as follows (in thousands):

	December 31, 2021		December 31, 2020
Raw materials	$	485,642	$	241,353
Work in process and finished goods	263,090		190,584
	$	748,732	$	431,937

The following table represents the rollforward of reserve for obsolete materials and supplies activity for the periods indicated (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Beginning balance	$	22,172	$	18,712	$	19,227
Provisions	5,155		8,015		3,207
Dispositions	(6,029)		(4,555)		(4,082)
Reserve of acquired company at date of acquisition	705		—		360
Divestitures	(722)		—		—
Ending balance	$	21,281	$	22,172	$	18,712

The principal raw materials used in the Company’s manufacturing processes include PVC resin, glass, aluminum, and steel that we purchase from multiple producers.

(e) Assets Held for Sale.

The Company records assets held for sale at the lower of the carrying value or fair value less costs to sell. The following criteria are used to determine if property is held for sale: (i) management has the authority and commits to a plan to sell the property; (ii) the property is available for immediate sale in its present condition; (iii) there is an active program to locate a buyer and the plan to sell the property has been initiated; (iv) the sale of the property is probable within one year; (v) the property is being actively marketed at a reasonable sale price relative to its current fair value; and (vi) it is unlikely that the plan to sell will be withdrawn or that significant changes to the plan will be made.

In determining the fair value of the assets less costs to sell, the Company considers factors including current sales prices for comparable assets in the area, recent market analysis studies, appraisals and any recent legitimate offers. If the estimated fair value less costs to sell of an asset is less than its current carrying value, the asset is written down to its estimated fair value less costs to sell. Our assumptions about property sales prices require significant judgment because the current market is highly sensitive to changes in economic conditions. We determined the estimated fair values of real property assets held for sale based on current market conditions and assumptions made by management, which may differ from actual results and may result in impairments if market conditions deteriorate. The total carrying value of assets held for sale is $3.4 million and

$4.6 million at December 31, 2021 and 2020, respectively. Assets held for sale at December 31, 2021 are actively marketed for sale or are under contract.

In addition to the divested businesses discussed in Note 5 — Divestitures, during fiscal 2021 and 2020, the Company completed the sale of certain real property and equipment that was previously classified as held for sale, resulting in net cash proceeds of approximately $5.1 million and $2.0 million, respectively, and a net loss that was immaterial for fiscal 2021 and a net gain of $1.4 million for fiscal 2020, which are included in restructuring and impairment charges, net, in the consolidated statement of operations. During fiscal 2020, the Company determined an alternative use for a facility in the Commercial segment that had previously been classified as held for sale and reclassified the net book value of $1.7 million to property, plant and equipment.

(f) Property, Plant and Equipment. Property, plant and equipment are stated at cost and depreciated using the straight-line method over their estimated useful lives. Leasehold improvements are capitalized and amortized using the straight-line method over the shorter of their estimated useful lives or the term of the underlying lease. Depreciation and amortization are recognized in cost of sales and selling, general and administrative expenses based on the nature and use of the underlying assets.

Depreciation expense for fiscal 2021, 2020 and 2019 was $103.0 million, $103.5 million, and $86.2 million, respectively.

Property, plant and equipment consists of the following (in thousands):

	December 31, 2021		December 31, 2020
Land	$	24,812	$	26,933
Buildings and improvements	253,637		279,113
Machinery and equipment	990,338		970,083
	1,268,787		1,276,129
Less: accumulated depreciation	(656,492)		(644,308)
Total property, plant and equipment, net	$	612,295	$	631,821

Estimated useful lives for depreciation are:

Buildings and improvements	15	–	39 years
Machinery and equipment	3	–	15 years

The Company capitalizes interest on capital invested in projects in accordance with Accounting Standards Codification (“ASC”) 835, Interest. For fiscal 2021, 2020 and 2019, the total amount of interest capitalized was $0.9 million, $1.1 million and $1.2 million, respectively. Upon commencement of operations, capitalized interest, as a component of the total cost of the asset, is amortized over the estimated useful life of the asset.

(g) Internally Developed Software. Internally developed software is stated at cost less accumulated amortization, is included within property, plant and equipment within our consolidated balance sheets, and is depreciated using the straight-line method over its estimated useful life ranging from 3 to 7 years. Software assets are reviewed for impairment when events or circumstances indicate the carrying value may not be recoverable over the remaining lives of the assets. During the software application development stage, capitalized costs include external consulting costs, costs of software licenses and internal payroll and payroll related costs for employees who are directly associated with a software project. Upgrades and enhancements are capitalized if they result in added functionality which enable the software to perform tasks it was previously incapable of performing. Software maintenance, training, data conversion and business process reengineering costs are expensed in the period in which they are incurred.

(h) Goodwill and Other Intangible Assets. The Company reviews the carrying values of goodwill and identifiable intangibles whenever events or changes in circumstances indicate that such carrying values may not be recoverable and annually for goodwill as required by ASC 350, Intangibles — Goodwill and Other. This guidance provides the option to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value. If, based on a review of qualitative factors, it is more likely than not that the fair value of a reporting unit is less than its carrying value, we perform a quantitative analysis. If the carrying value of a reporting unit exceeds its fair value, we measure any goodwill impairment loss as the amount by which the carrying amount of a reporting unit exceeds its fair value, not to exceed the total amount of goodwill allocated to that reporting unit.

Unforeseen events, changes in circumstances, market conditions and material differences in the value of intangible assets due to changes in estimates of future cash flows could negatively affect the fair value of the Company’s assets and result in a non-cash impairment charge. Some factors considered important that could trigger an impairment review include the following: significant underperformance relative to expected historical or projected future operating results, significant changes in the manner of the Company’s use of acquired assets or the strategy for its overall business and significant negative industry or economic trends.

(i) Leases. The Company has leases for certain office, manufacturing, warehouse and distribution locations, and vehicles and equipment, including fleet vehicles. Many of these leases have options to terminate prior to or extend beyond the end of the term. The exercise of the majority of lease renewal options is at the Company’s sole discretion. Some lease agreements have variable payments, the majority of which are real estate agreements in which future increases in rent are based on an index. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants. The Company accounts for lease and non-lease components as a single lease component for all leases other than leases of durable tooling. The Company has elected to exclude leases with an initial term of 12 months or less from the consolidated balance sheets and recognizes related lease payments in the consolidated statements of operations on a straight-line basis over the lease term.

Operating lease liabilities are recognized based on the present value of the future minimum lease payments over the reasonably expected holding period at the commencement date of the leases. Few of the Company’s lease contracts provide a readily determinable implicit rate. As such, an estimated incremental borrowing rate (“IBR”) is utilized, based on information available at the inception of the lease. The incremental borrowing rate represents an estimate of the interest rate we would incur at lease commencement to borrow an amount equal to the lease payments on a collateralized basis over the term of the lease.

Accounting for leases requires judgment, including determining whether a contract contains a lease, the incremental borrowing rates to utilize for leases without a stated implicit rate, the reasonably certain holding period for a leased asset, and the allocation of consideration to lease and non-lease components. The allocation of the lease and non-lease components for durable tooling is based on the Company’s best estimate of standalone price.

(j) Revenue Recognition. The Company enters into contracts that pertain to products, which are accounted for as separate performance obligations and are typically one year or less in duration. Given the nature of the Company's sales arrangements, we are not required to exercise significant judgment in determining the timing for the satisfaction of performance obligations or the transaction price. Revenue is measured as the amount of consideration expected to be received in exchange for our products. Revenue is generally recognized when the product has shipped from the Company’s facility and control has transferred to the customer. For certain products, it is industry practice that customers take title to products upon delivery, at which time revenue is then recognized by the Company. For a portion of the Company's business, when the Company processes customer owned material, control is deemed to transfer to the customer as the processing is being completed. Allowances for cash discounts, volume rebates and other customer incentive programs, as well as gross customer returns, among others, are recorded as a reduction of sales at the time of sale based upon the estimated future outcome. Cash discounts, volume rebates and other customer incentive programs are based upon certain percentages agreed upon with the Company’s various customers, which are typically earned by the customer over an annual period.

The Company’s revenues are adjusted for variable consideration, which includes customer volume rebates and prompt payment discounts. The Company measures variable consideration by estimating expected outcomes using analysis and inputs based upon anticipated performance, historical data, and current and forecasted information. Customer returns are recorded as a reduction to sales on an actual basis throughout the year and also include an estimate at the end of each reporting period for future customer returns related to sales recorded prior to the end of the period. The Company generally estimates customer returns based upon the time lag that historically occurs between the sale date and the return date, while also factoring in any new business conditions that might impact the historical analysis such as new product introduction. Measurement of variable consideration is reviewed by management periodically and revenue is adjusted accordingly. The Company does not have significant financing components. The Company recognizes installation revenue, primarily within the stone veneer business, over the period for which the stone is installed, which is typically a very short duration.

Shipping and handling activities performed by the Company are considered activities to fulfill the sales of our products. Amounts billed for shipping and handling are included in net sales, while costs incurred for shipping and handling are included in cost of sales.

In accordance with certain contractual arrangements, the Company receives payment from our customers in advance related to performance obligations that are to be satisfied in the future and recognizes such payments as deferred revenue, primarily related to the Company’s weathertightness warranties (see Warranty accounting policies below).

A portion of the Company’s revenue, exclusively within the Commercial segment, includes multiple-element revenue arrangements due to multiple deliverables. Each deliverable is generally determined based on customer-specific manufacturing and delivery requirements. Because the separate deliverables have value to the customer on a stand-alone basis, they are typically considered separate units of accounting. A portion of the entire job order value is allocated to each unit of accounting. Revenue allocated to each deliverable is recognized upon shipment. The Company uses estimated selling price (“ESP”) based on underlying cost plus a reasonable margin to determine how to separate multiple-element revenue arrangements into separate units of accounting, and how to allocate the arrangement consideration among those separate units of accounting. The Company determines ESP based on normal pricing and discounting practices.

The following table presents disaggregated revenue disclosure details of net sales by segment (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Windows Net Sales Disaggregation:
Vinyl windows	$	2,190,887	$	1,763,565	$	1,838,796
Aluminum windows	85,735		74,672		53,622
Other	45,655		51,388		38,029
Total	$	2,322,277	$	1,889,625	$	1,930,447
Siding Net Sales Disaggregation:
Vinyl siding	$	667,284	$	523,724	$	525,005
Metal	293,427		255,267		263,018
Injection molded	75,361		66,672		66,578
Stone	87,948		86,457		92,228
Other products & services(1)	240,060		209,826		164,578
Total	$	1,364,080	$	1,141,946	$	1,111,407
Commercial Net Sales Disaggregation:
Metal building products(2)	$	1,473,662	$	1,107,733	$	1,249,757
Insulated metal panels(3)	208,220		348,640		441,441
Metal coil coating	214,898		129,425		156,695
Total	$	1,896,780	$	1,585,798	$	1,847,893
Total Net Sales:	$	5,583,137	$	4,617,369	$	4,889,747

(1)Other products & services primarily consist of installation of stone veneer products.

(2)The Company’s roll-up sheet doors (“DBCI”) business is only included in the results of operations through August 17, 2021 as a result of divestiture. See Note 5 — Divestitures for more information. The net sales of UCC, which was acquired on December 3, 2021, are included from the date of acquisition. See Note 4 — Acquisitions for more information.

(3)The Company’s insulated metal panels (“IMP”) business is only included in the results of operations through August 8, 2021 as a result of divestiture. See Note 5 — Divestitures for more information.

(k) Deferred Financing Costs. Deferred financing costs generally comprising facility, agency, and certain legal fees associated with issuing new debt and debt restructuring, are amortized over the contractual term of the related agreement using the effective interest method. See Note 13 — Long-Term Debt.

(l) Cost of Sales. Cost of sales includes the cost of inventory sold during the period, including costs for manufacturing, inbound freight, receiving, inspection, warehousing, and internal transfers less vendor rebates. Costs associated with shipping and handling the Company’s products are also included in cost of sales. Purchasing costs and engineering and drafting costs are included in selling, general and administrative expense.

(m) Warranty. The Company offers a number of warranties associated with the products it sells. The specific terms and conditions of these warranties vary depending on the product sold. The Company’s warranty liabilities are undiscounted and adjusted for inflation based on third party actuarial estimates. Factors that affect the Company’s warranty liabilities include

the number of units sold, historical and anticipated rates of warranty claims, cost per claim and new product introduction. Warranties are normally limited to replacement or service of defective components for the original customer. Some warranties are transferable to subsequent owners and are generally limited to ten years from the date of manufacture or require pro-rata payments from the customer. A provision for estimated warranty costs is recorded based on historical experience and the Company periodically adjusts these provisions to reflect actual experience. Warranty costs are included within cost of goods sold. The Company assesses the adequacy of the recorded warranty claims and adjusts the amounts as necessary. Separately, upon the sale of a weathertightness warranty in the Commercial segment, the Company records the resulting revenue as deferred revenue, which is included in other accrued expenses and other long-term liabilities on the consolidated balance sheets depending on when the revenues are expected to be recognized. See Note 12 — Warranty.

(n) Insurance. Group medical insurance is purchased through Blue Cross Blue Shield (“BCBS”). The plans include a Preferred Provider Organization Plan (“PPO”) and a Consumer Driven Health Plan (“CDHP”). These plans are managed-care plans utilizing networks to achieve discounts through negotiated rates with the providers within these networks. The claims incurred under these plans are self-funded for the first $500,000. The Company purchases individual stop loss reinsurance to limit the claims liability to $500,000 per covered individual per year. BCBS administers all claims, including claims processing, utilization review and network access charges.

Insurance is purchased for workers compensation and employer liability, general liability, property and auto liability. The Company utilizes either deductibles or self-insurance retentions (“SIR”) to limit the exposure to catastrophic loss. The workers compensation insurance has a $1,000,000 per-occurrence deductible. The property and auto liability insurances have per-occurrence deductibles of $500,000 each. The general liability insurance has a $1,000,000 SIR. Umbrella insurance coverage is purchased to protect us against claims that exceed the Company’s per-occurrence or aggregate limits set forth in the Company’s respective policies. All claims are adjusted utilizing a third-party claims administrator and insurance carrier claims adjusters.

Each reporting period, the Company records the costs of its health insurance plan, including paid claims, an estimate of the change in incurred but not reported (“IBNR”) claims, and administrative fees, when applicable, (collectively the “Plan Costs”) as general and administrative expenses on the consolidated statements of operations. The estimated IBNR claims are based upon (i) the level of paid claims under the plan over the prior 36 months, (ii) an estimated lag factor and (iii) an estimate of incurred and reported but not yet paid claims. The Company uses an actuary to determine the claims lag and estimated liability for IBNR claims.

For workers’ compensation costs, the Company monitors the number of accidents and the severity of such accidents to develop appropriate estimates for expected costs to provide both medical care and indemnity benefits, when applicable, for the period of time that an employee is incapacitated and unable to work. These accruals are developed using independent third-party actuarial estimates of the expected cost for similar disabilities. For general liability and automobile claims, accruals are developed based on independent third-party actuarial estimates of the expected cost to resolve each claim, including damages and defense costs, based on legal and industry trends and the nature and severity of the claim. Accruals also include estimates for IBNR claims, and taxes and administrative fees, when applicable. Each reporting period, the Company records the costs of our workers’ compensation, general liability and automobile claims, including paid claims, an estimate of the change in IBNR claims, taxes and administrative fees as general and administrative expenses on the consolidated statements of operations.

(o) Advertising Costs. Advertising costs are expensed as incurred. Advertising expense was $16.9 million, $15.1 million and $28.6 million in fiscal 2021, 2020 and 2019, respectively.

(p) Impairment of Long-Lived Assets. The Company assesses impairment of property, plant and equipment at an asset group level in accordance with the provisions of ASC 360, Property, Plant and Equipment. The Company assesses the recoverability of the carrying amount of property, plant and equipment if certain events or changes in circumstances indicate that the carrying value of such asset groups may not be recoverable, such as a significant decrease in market value of the asset groups or a significant change in our business conditions. If it is determined that the carrying value of an asset group is not recoverable based on expected undiscounted future cash flows, excluding interest charges, an impairment loss equal to the excess of the carrying amount of the asset group over its fair value is recorded. The fair value of an asset group is determined based on prices of similar assets adjusted for their remaining useful life.

(q) Share-Based Compensation. Compensation expense is recorded for restricted stock awards under the fair value method. Compensation expense for performance stock units (“PSUs”) is recorded based on the probable outcome of the performance conditions associated with the respective shares, as determined by management. See Note 9 — Share-Based Compensation.

(r) Foreign Currency Remeasurement and Translation. The functional currency for the Company’s Canadian operations is the Canadian dollar. Translation adjustments resulting from translating the functional currency financial

statements into U.S. dollar equivalents are reported separately in accumulated other comprehensive income (loss) in stockholders’ equity. The net foreign currency gains (losses) included in net income (loss) for fiscal 2021, 2020 and 2019 were $(3.1) million, $1.1 million and $1.2 million, respectively. Net foreign currency translation adjustments, net of tax, and included in other comprehensive income (loss) were $6.6 million, $17.3 million and $3.2 million for the fiscal 2021, 2020 and 2019, respectively.

The functional currency for the Company’s Mexico operations is the U.S. dollar. Adjustments resulting from the remeasurement of the local currency financial statements into the U.S. dollar functional currency, which uses a combination of current and historical exchange rates, are included in net income (loss) in the current period. Net foreign currency remeasurement gains (losses) were $(0.6) million, $0.2 million and $0.9 million for fiscal 2021, 2020 and 2019, respectively.

(s) Contingencies. The Company establishes reserves for estimated loss contingencies and unasserted claims when it believes a loss is probable and the amount of the loss can be reasonably estimated. The Company’s contingent liability reserves are related primarily to litigation and environmental matters. Revisions to contingent liability reserves are reflected in income in the period in which there are changes in facts and circumstances that affect our previous assumptions with respect to the likelihood or amount of loss. Reserves for contingent liabilities are based upon assumptions and estimates regarding the probable outcome of the matter. The Company estimates the probability by evaluating historical precedent as well as the specific facts relating to each particular contingency (including the opinion of outside advisors, professionals and experts). Should the outcome differ from the assumptions and estimates or other events result in a material adjustment to the accrued estimated reserves, revisions to the estimated reserves for contingent liabilities would be required and would be recognized in the period the new information becomes known.

(t) Income taxes. The determination of the Company’s provision for income taxes requires significant judgment, the use of estimates and the interpretation and application of complex tax laws. The amounts recorded in our consolidated financial statements reflect estimates of final amounts due to timing of completion and filing of actual income tax returns. Estimates are required with respect to, among other things, the appropriate state income tax rates used in the various states in which we and our subsidiaries are required to file, the potential utilization of operating and capital loss carry-forwards for federal, state, and foreign income tax purposes and valuation allowances required, if any, for tax assets that may not be realized in the future. The Company establishes reserves when, despite our belief that our tax return positions are fully supportable, certain positions could be challenged, and the positions may not be fully sustained. The Company’s provision for income taxes reflects a combination of income earned and taxed in the various U.S. federal and state, Canadian federal and provincial, Mexican federal and other jurisdictions. Jurisdictional tax law changes, increases or decreases in permanent differences between book and tax items, accruals or adjustments of accruals for tax contingencies or valuation allowances, and the change in the mix of earnings from these taxing jurisdictions all affect the overall effective tax rate.

In assessing the realizability of deferred tax assets, the Company considers whether it is more likely than not that some portion, or all, of the deferred tax assets will not be realized. The Company considers all available evidence, both positive and negative, in determining whether a valuation allowance is required. Such evidence includes the scheduled reversal of deferred tax liabilities, projected future taxable income and tax planning strategies in making this assessment, and judgment is required in considering the relative weight of negative and positive evidence.

(u) Acquisitions. The Company records acquisitions resulting in the consolidation of a business using the acquisition method of accounting. Under this method, we record the assets acquired, including intangible assets that can be identified and named, and liabilities assumed based on their estimated fair values at the date of acquisition. Various fair value assumptions are used in the determination of these estimated fair values, including items such as sales growth rates, cost synergies, discount rates and other prospective financial information. The purchase price in excess of the fair value of the assets acquired and liabilities assumed is recorded as goodwill. We believe these estimates are based upon reasonable assumptions; however, they are inherently uncertain and unpredictable, and actual results may differ. Estimates associated with the accounting for acquisitions may change during the measurement period, which may be up to one year from the acquisition date. As a result, material adjustments during the measurement period are reflected in the comparative consolidated financial statements in the period in which the adjustment amount is determined. Upon the conclusion of the measurement period or final determination of the values of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded in our consolidated statements of operations. Newly acquired entities are included in our results from the date of their respective acquisitions. See Note 4 — Acquisitions.

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ACCOUNTING PRONOUNCEMENTS

12 Months Ended

Dec. 31, 2021

Accounting Changes and Error Corrections [Abstract]

Accounting Pronouncements

ACCOUNTING PRONOUNCEMENTS

Adopted Accounting Pronouncements

In December 2019, the Financial Accounting Standards Board ("FASB") issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which simplifies the accounting for income taxes by removing certain exceptions to the general principles in Topic 740 and also improves consistent application of and simplifies U.S. GAAP for

other areas of Topic 740 by clarifying and amending existing guidance. Effective January 1, 2021, the Company adopted this guidance. The application of ASU 2019-12 did not have a material effect on the consolidated financial statements.

Recent Accounting Pronouncements

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides optional guidance to ease the potential burden in accounting for reference rate reform on financial reporting. In January 2021, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848): Scope, which clarifies that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivatives that are affected by the reference rate transition. The amendments in these ASUs are elective, apply to all entities that have contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of rate reform, and may be adopted as of March 12, 2020 through December 31, 2022. The Company is evaluating the impact of electing to apply the amendments.

In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, which requires the recognition and measurement of contract assets and contract liabilities acquired in a business combination in accordance with ASC 606, Revenue from Contracts with Customers. This creates an exception to the general recognition and measurement principles in ASC 805. The Company will be required to adopt this guidance in the annual and interim periods for the fiscal year ending December 31, 2023, with early adoption permitted. The amendments in this ASU should be applied prospectively to business combinations occurring on or after the effective date of the amendments. The Company does not anticipate that the adoption of this guidance will have a material impact on the consolidated financial statements.

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ACQUISITIONS

12 Months Ended

Dec. 31, 2021

Business Combination and Asset Acquisition [Abstract]

ACQUISITIONS

ACQUISITIONS

Union Corrugating Company Holdings, Inc.

On December 3, 2021, the Company completed its acquisition of 100% of the issued and outstanding common stock of Union Corrugating Company Holdings, Inc. (“UCC”) for a purchase price of $216.8 million, subject to customary adjustments that have not been finalized as of December 31, 2021. UCC is a leading provider of residential metal roofing, metal buildings, and roofing components. The addition of UCC advances our growth strategy by expanding our offering to customers in the high growth metal roofing market. This acquisition was funded through cash available on the balance sheet. The Company reports UCC results within the Commercial segment.

The Company preliminarily determined the fair value of the tangible and intangible assets and the liabilities acquired, and recorded goodwill based on the excess of the fair value of the acquisition consideration over such fair values, as follows (in thousands):

Assets acquired:
Cash	$	19,594
Accounts receivable	20,821
Other receivables	16
Inventories	68,727
Prepaid expenses and other current assets	1,356
Property, plant and equipment	24,184
Lease right of use assets	37,964
Goodwill	140,342
Other assets	94
Total assets acquired	313,098
Liabilities assumed:
Accounts payable	32,732
Accrued expenses	22,427
Deferred income taxes	1,289
Current portion of lease liability	3,859
Other current liabilities	1,852
Non-current portion of lease liabilities	34,105
Total liabilities assumed	96,264
Net assets acquired	$	216,834

The $140.3 million of preliminary goodwill was allocated to the Commercial segment. Goodwill from this acquisition is not deductible for tax purposes. The goodwill is primarily attributable to the synergies expected to be realized.

During the year ended December 31, 2021, UCC contributed net sales of $21.9 million and net income of $1.8 million, which have been included within the Company’s consolidated statements of operations. During the year ended December 31, 2021, the Company incurred $1.0 million of acquisition-related costs for UCC, all of which are recorded in strategic development and acquisition related costs in the Company’s consolidated statements of operations.

Due to the recent closing of the UCC transaction, the purchase price allocation is preliminary and will be finalized when valuations are complete and final assessment of the fair value of acquired assets and assumed liabilities are completed. There can be no assurance that such finalization will not result in material changes from the preliminary purchase price allocation. The Company’s estimates and assumptions are subject to change during the measurement period (up to one year from the acquisition date) as the Company finalizes the valuations of accounts receivable, other receivables, inventories, prepaid expenses and other current assets, property, plant and equipment, lease right of use assets, goodwill, intangible assets, other assets, accounts payable, accrued expenses, other current liabilities, other long-term liabilities, lease liabilities, and deferred income taxes.

Cascade Windows

On August 20, 2021, the Company completed its acquisition of Cascade Windows, Inc. (“Cascade Windows”) for $239.5 million in cash and a working capital adjustment that has not been finalized as of December 31, 2021. Cascade Windows serves the residential new construction and repair and remodel markets with energy efficient vinyl window and door products from various manufacturing facilities in the United States, expanding our manufacturing capabilities and creating new opportunities for us in the Western United States. This acquisition was funded through cash available on the balance sheet. The Company reports Cascade Windows’ results within the Windows segment.

The Company preliminarily determined the fair value of the tangible and intangible assets and the liabilities acquired, and recorded goodwill based on the excess of the fair value of the acquisition consideration over such fair values, as follows (in thousands):

Assets acquired:
Cash	$	2,838
Accounts receivable	17,398
Other receivables	409
Inventories	16,278
Prepaid expenses and other current assets	1,538
Property, plant and equipment	18,300
Lease right of use assets	21,849
Intangible assets (trade names/customer relationships)	137,660
Goodwill	110,816
Other assets	500
Total assets acquired	327,586
Liabilities assumed:
Accounts payable	17,680
Accrued expenses	7,488
Deferred income taxes	33,221
Current portion of lease liability	247
Other current liabilities	2,349
Non-current portion of lease liabilities	19,926
Other long-term liabilities	7,211
Total liabilities assumed	88,122
Net assets acquired	$	239,464

The $110.8 million of preliminary goodwill was allocated to the Windows segment. Goodwill from this acquisition is not deductible for tax purposes. The goodwill is primarily attributable to the synergies expected to be realized.

During the year ended December 31, 2021, Cascade Windows contributed net sales of $57.4 million and a net loss of $6.2 million, which have been included within the Company’s consolidated statements of operations. During the year ended December 31, 2021, the Company incurred $1.9 million of acquisition-related costs for Cascade Windows, $1.2 million of which are recorded in strategic development and acquisition related costs in the Company’s consolidated statements of operations.

The purchase price allocation for the acquisition of Cascade Windows remains subject to further adjustments, primarily associated with the finalization of the working capital adjustment, therefore the measurement period remained open as of December 31, 2021. The Company anticipates completing the acquisition accounting adjustments during the first half of fiscal 2022.

Prime Windows

On April 30, 2021, the Company acquired Prime Windows LLC (“Prime Windows”) for total consideration of $93.0 million, exclusive of a $2.0 million working capital adjustment that was finalized as of December 31, 2021. Prime Windows serves residential new construction and repair and remodel markets with energy efficient vinyl window and door products from two manufacturing facilities in the United States, expanding our manufacturing capabilities and creating new opportunities for us in the Western United States. This acquisition was funded through borrowings under the Company’s existing credit facilities. Prime Windows’ results are reported within the Windows segment.

The Company preliminarily determined the fair value of the tangible and intangible assets and the liabilities acquired, and recorded goodwill based on the excess of the fair value of the acquisition consideration over such fair values, as follows (in thousands):

Assets acquired:
Cash	$	997
Accounts receivable	5,500
Inventories	4,446
Prepaid expenses and other current assets	823
Property, plant and equipment	2,500
Lease right of use assets	2,787
Intangible assets (trade names/customer relationships)	51,600
Goodwill	33,148
Other assets	50
Total assets acquired	101,851
Liabilities assumed:
Accounts payable	1,676
Other accrued expenses	1,679
Lease liabilities	2,637
Other long-term liabilities	829
Total liabilities assumed	6,821
Net assets acquired	$	95,030

The $33.1 million of goodwill was allocated to the Windows segment. Goodwill from this acquisition is expected to be deductible for tax purposes. The goodwill is primarily attributable to the synergies expected to be realized.

During the year ended December 31, 2021, Prime Windows contributed net sales of $55.8 million and net income of $5.3 million, which have been included within the Company’s consolidated statements of operations. The Company incurred $1.0 million of acquisition-related costs for Prime Windows during the year ended December 31, 2021, $0.7 million of which are recorded in strategic development and acquisition related costs in the Company’s consolidated statements of operations.

The fair value of all assets acquired and liabilities assumed was finalized during the fourth quarter of 2021.

Kleary

On March 2, 2020, the Company acquired 100% of the issued and outstanding shares of the common stock of Kleary Masonry, Inc. (“Kleary”) for total consideration of $40.0 million, exclusive of the $2.0 million working capital adjustment that was finalized during the three months ended July 4, 2020. The transaction was financed with cash on hand and through borrowings under the Company’s asset-based revolving credit facility. Kleary’s results are reported within the Siding segment.

The Company determined the fair value of the tangible and intangible assets and the liabilities acquired, and recorded goodwill based on the excess of the fair value of the acquisition consideration over such fair values, as follows (in thousands):

Assets acquired:
Cash	$	143
Accounts receivable	7,135
Inventories	670
Prepaid expenses and other current assets	277
Property, plant and equipment	1,042
Lease right of use assets	445
Intangible assets (trade names/customer relationships)	22,350
Goodwill	12,539
Total assets acquired	44,601
Liabilities assumed:
Accounts payable	1,149
Other accrued expenses	1,020
Lease liabilities	339
Other long-term liabilities	109
Total liabilities assumed	2,617
Net assets acquired	$	41,984

The $12.5 million of goodwill was allocated to the Siding segment and will be deductible for tax purposes. The goodwill is attributable to the workforce of the acquired business and the synergies expected to be realized. The fair value of all assets acquired and liabilities assumed was finalized during the first quarter of 2021.

During the year ended December 31, 2020, the Company incurred $10.2 million of acquisition-related costs for Kleary, primarily consisting of a contingent earnout, which are recorded in strategic development and acquisition related costs in the Company’s consolidated statements of operations. Strategic development and acquisition related costs for the year ended December 31, 2021 included a reduction of $4.2 million to the previously estimated accrual to reflect the final contingent earnout for the Kleary acquisition at approximately $5.4 million, which was paid as of October 2, 2021.

Environmental Stoneworks

On January 12, 2019, the Company entered into a Unit Purchase Agreement (the “Purchase Agreement”) with Environmental Materials, LLC, a Delaware limited liability company (“Environmental Stoneworks”), the Members of Environmental Materials, LLC (the “Sellers”) and Charles P. Gallagher and Wayne C. Kocourek, solely in their capacity as the Seller Representative (as defined in the Purchase Agreement), pursuant to which, on February 20, 2019, the Company’s wholly-owned subsidiary, Ply Gem Industries, Inc., purchased from the Sellers 100% of the outstanding limited liability company interests of Environmental Stoneworks for total consideration of $182.6 million, subject to certain post-closing adjustments. The transaction was financed through borrowings under the Company’s asset-based revolving credit facility. Environmental Stoneworks’ results are reported within the Siding segment.

The Company determined the fair value of the tangible and intangible assets and the liabilities acquired, and recorded goodwill based on the excess of fair value of the acquisition consideration over such fair values, as follows (in thousands):

Assets acquired:
Restricted cash	$	3,379
Accounts receivable	16,825
Inventories	13,062
Prepaid expenses and other current assets	3,677
Property, plant and equipment	14,295
Lease right-of-use assets	11,372
Intangible assets (trade names/customer relationships)	91,170
Goodwill	63,543
Deferred taxes	474
Other assets	157
Total assets acquired	217,954
Liabilities assumed:
Accounts payable	5,910
Other accrued expenses	14,666
Lease liabilities	11,365
Other long-term liabilities	3,450
Total liabilities assumed	35,391
Net assets acquired	$	182,563

The $63.5 million of goodwill was allocated to the Siding segment and is expected to be deductible for tax purposes. The goodwill is attributable to the workforce of the acquired business and the synergies expected to be realized.

Unaudited Pro Forma Financial Information

The following table provides unaudited supplemental pro forma results for the Company for the years ended December 31, 2021, 2020 and 2019 as if the UCC, Cascade Windows, Prime Windows, Kleary and Environmental Stoneworks acquisitions had occurred on January 1, 2019 (in thousands except for per share data):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Net sales	$	5,977,230	$	5,056,390	$	5,387,135
Net income (loss) applicable to common shares	663,273		(480,289)		26,688
Net income (loss) per common share:
Basic	$	5.26	$	(3.83)	$	0.21
Diluted	$	5.23	$	(3.83)	$	0.21

The unaudited supplemental pro forma financial information was prepared based on the historical information of the Company, UCC, Cascade Windows, Prime Windows, Kleary and Environmental Stoneworks. The unaudited supplemental pro forma financial information does not give effect to the potential impact of current financial conditions, any anticipated synergies, operating efficiencies or cost savings that may result from the acquisitions or any integration costs. Unaudited pro forma balances are not necessarily indicative of operating results had the UCC, Cascade Windows, Prime Windows, Kleary and Environmental Stoneworks acquisitions occurred on January 1, 2019 or of future results.

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DIVESTITURES	12 Months Ended
	Dec. 31, 2021
Business Combination and Asset Acquisition [Abstract]
DIVESTITURES	DIVESTITURESOn August 9, 2021, the Company completed the sale of its IMP business for cash proceeds of $1.0 billion. On August 18, 2021, the Company completed the sale of its DBCI business for cash proceeds of $168.9 million. The IMP and DBCI businesses were within the Company’s Commercial segment. For the year ended December 31, 2021, the Company recognized a pre-tax gain of $679.8 million for the IMP divestiture and $151.5 million for the DBCI divestiture, which are included in gain on divestitures in the consolidated statements of operations. As part of the consideration received for the sale of the IMP business, we entered into a short-term agreement with the purchaser to supply steel for the IMP business. We recognized approximately $15.5 million in net sales under the supply agreement, which ended in December 2021. For the year ended December 31, 2021, the Company incurred $21.3 million of divestiture-related costs, which are recorded in strategic development and acquisition related costs in the Company’s consolidated statements of operations. The divested businesses did not represent strategic shifts that have a major effect on our operations and financial results, so they were not presented as discontinued operations.

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RESTRUCTURING AND IMPAIRMENT

12 Months Ended

Dec. 31, 2021

Restructuring and Related Activities [Abstract]

RESTRUCTURING AND IMPAIRMENT

RESTRUCTURING AND IMPAIRMENT

The Company has various initiatives and programs in place within its business units to reduce SG&A, manufacturing costs and to optimize the Company’s combined manufacturing footprint. During the year ended December 31, 2021, the Company incurred restructuring charges of $1.3 million, $14.2 million and $10.1 million in the Windows, Siding and Commercial segments, respectively, and $0.6 million in corporate restructuring charges. Restructuring charges incurred to date since the current restructuring initiatives began in 2019 are $78.6 million. The following table summarizes the costs related to those restructuring initiatives and programs for periods indicated (in thousands):

	Year Ended		Cost Incurred To Date (since inception)
	December 31, 2021
Severance	$	3,696	$	39,927
Asset impairments	22,210		30,078
Gain on sale of facilities, net	—		(1,298)
Other restructuring costs	341		9,877
Total restructuring costs	$	26,247	$	78,584

For the year ended December 31, 2021, total restructuring costs are recorded within restructuring and impairment costs in the consolidated statement of operations. The asset impairments of $22.2 million for the year ended December 31, 2021 included right-of-use lease assets in the Windows segment of $0.3 million; certain product line assets in the Siding segment for which the fair value of the assets was below their carrying amounts by $14.0 million; assets in the Commercial segment that were recorded at fair value less cost to sell, which was less than the assets’ carrying amount by $6.4 million; and the write-off of previously capitalized software development costs in the Commercial segment of $1.5 million.

The following table summarizes our severance liability, included within other accrued expenses on the consolidated balance sheets, and cash payments made pursuant to the restructuring plans from inception through December 31, 2021 (in thousands):

	Windows		Siding		Commercial		Corporate		Total
Balance, December 31, 2018	$	—	$	85	$	—	$	2,333	$	2,418
Costs incurred	1,094		1,834		2,721		4,009		9,658
Cash payments	(676)		(1,437)		(2,721)		(4,579)		(9,413)
Balance, December 31, 2019	$	418	$	482	$	—	$	1,763	$	2,663
Costs incurred	4,294		2,705		16,561		3,013		26,573
Cash payments	(4,406)		(2,352)		(14,570)		(4,346)		(25,674)
Balance, December 31, 2020	$	306	$	835	$	1,991	$	430	$	3,562
Costs incurred	971		264		2,004		457		3,696
Cash payments	(1,262)		(904)		(2,473)		(587)		(5,226)
Balance, December 31, 2021	$	15	$	195	$	1,522	$	300	$	2,032

We expect to fully execute our restructuring initiatives and programs over the next 12 to 24 months and we may incur future additional restructuring charges associated with these plans. We are unable at this time to make a good faith

determination of cost estimates, or ranges of cost estimates, associated with future phases of the plans or the total costs we may incur in connection with these plans.

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GOODWILL AND OTHER INTANGIBLE ASSETS

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

GOODWILL AND OTHER INTANGIBLE ASSETS

GOODWILL AND OTHER INTANGIBLE ASSETS

The Company’s goodwill balance and changes in the carrying amount of goodwill by segment follows (in thousands):

	Windows		Siding		Commercial		Total
Balance, December 31, 2019	$	714,023	$	807,280	$	148,291	$	1,669,594
Goodwill recognized from acquisition	—		12,539		—		12,539
Impairment	(320,990)		(176,774)		(5,407)		(503,171)
Currency translation	3,991		10,000		—		13,991
Purchase accounting adjustments from prior year acquisitions	—		1,776		—		1,776
Balance, December 31, 2020	$	397,024	$	654,821	$	142,884	$	1,194,729
Goodwill recognized from acquisitions	143,964		122		140,342		284,428
Divestiture	—		—		(121,464)		(121,464)
Currency translation	208		155		—		363
Balance, December 31, 2021	$	541,196	$	655,098	$	161,762	$	1,358,056

As a result of the decline in the Company’s market valuation and near-term economic uncertainties related to the COVID-19 pandemic, during the first quarter of fiscal 2020, the Company determined that an interim goodwill impairment test was necessary. The Company determined that deterioration in discount rates and market multiples during the three months ended April 4, 2020 from the COVID-19 pandemic driven economic uncertainty when combined with lower forecasted discounted cash flows, decreased the fair values of the Company’s reporting units. The Company performed an impairment evaluation by comparing the fair market value of its reporting units, as determined using an equally weighted discounted cash flow model and a market approach, to its carrying value. It was determined that the Siding, Windows and Metal Coil Coating reporting units' carrying value each exceeded their fair value. As a result of this analysis, the Company recorded a goodwill impairment charge of approximately $321.0 million for the Windows reporting unit, $176.8 million for the Siding reporting unit, and $5.4 million for the Metal Coil Coating reporting unit (which is within the Commercial segment). This non-cash charge did not affect the Company’s cash position, liquidity or debt covenant compliance, nor did it have any impact on future operations.

In addition to interim impairment tests under ASC 350, Intangibles — Goodwill and Other, the Company evaluated its property and equipment and intangible assets for impairment during the first quarter of fiscal 2020 in accordance with ASC 360, Property, Plant and Equipment. This analysis was triggered by a decrease in projected cash flows due to the depressed construction market. The impairment test results did not indicate that an impairment existed other than the $3.1 million included in restructuring and impairment charges, net, in the Company’s consolidated statement of operations for the three months ended April 4, 2020.

The Company performed its annual impairment assessment of goodwill during the fourth quarter of fiscal 2021 and 2020. The Company performed the annual impairment testing on each of its reporting units that had goodwill balances. The fair value of the Company’s reporting units is based on a blend of estimated discounted cash flows and a market approach. The results from each of these models are then weighted and combined into a single estimate of fair value for the Company’s reporting units. Estimated discounted cash flows are based on projected sales and related cost of sales. Publicly traded company multiples and acquisition multiples are derived from information on traded shares and analysis of recent acquisitions in the marketplace, respectively, for companies with operations similar to ours. The primary assumptions used in these various models include earnings multiples of acquisitions in a comparable industry, future cash flow estimates of each of the reporting units, weighted average cost of capital, working capital and capital expenditure requirements.

As a result of the annual impairment tests, the Company concluded that the estimated fair value of each of its reporting units exceeded its carrying value. However, there can be no assurance that: 1) valuation multiples will not decline, 2) discount rates will not increase, or 3) the earnings, book values or projected earnings and cash flows of the Company’s reporting units will not decline. The Company will continue to analyze changes to these assumptions in future periods.

The table that follows presents the major components of intangible assets as of December 31, 2021 and 2020 (in thousands). Intangible assets that are fully amortized are removed from the disclosures.

	Range of Life (Years)			Weighted Average Amortization Period (Years)	Cost		Accumulated Amortization		Net Carrying Value
As of December 31, 2021
Amortized intangible assets:
Trademarks/Trade names/other	3	–	15	7	$	241,727	$	(76,574)	$	165,153
Customer lists and relationships	7	–	20	9	1,845,511		(486,029)		1,359,482
Total intangible assets				8	$	2,087,238	$	(562,603)	$	1,524,635
	Range of Life (Years)			Weighted Average Amortization Period (Years)	Cost		Accumulated Amortization		Net Carrying Value
As of December 31, 2020
Amortized intangible assets:
Trademarks/Trade names	5	–	15	8	$	248,155	$	(51,722)	$	196,433
Customer lists and relationships	7	–	20	9	1,758,611		(370,440)		1,388,171
Total intangible assets				9	$	2,006,766	$	(422,162)	$	1,584,604

Intangible assets are amortized on a straight-line basis or a basis consistent with the expected future cash flows over their expected useful lives. Amortization expense of intangibles was $189.5 million, $181.0 million and $177.6 million in fiscal 2021, 2020 and 2019, respectively. The Company expects to recognize amortization expense over the next five fiscal years as follows (in thousands):

2022	$	196,157
2023	196,144
2024	195,487
2025	195,304
2026	195,120

In accordance with ASC 350, Intangibles — Goodwill and Other, the Company evaluates the remaining useful life of intangible assets on an annual basis. The Company reviews finite-lived intangible assets for impairment when events or changes in circumstances indicate the carrying values may not be recoverable in accordance with ASC 360, Property, Plant and Equipment.

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LEASES

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

LEASES

LEASES

Weighted average information about the Company’s lease portfolio as of December 31, 2021 was as follows:

Weighted-average remaining lease term	6.9 years
Weighted-average IBR	5.74	%

Operating lease costs were as follows (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020
Operating lease costs
Fixed lease costs	$	107,938	$	113,760
Variable lease costs(1)	102,646		70,795
(1) Includes short-term lease costs, which are immaterial.

Cash and non-cash activities were as follows (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	91,024	$	99,076
Right-of-use assets obtained in exchange for new operating lease liabilities	$	88,826	$	19,785

Future minimum lease payments under non-cancelable leases as of December 31, 2021 were as follows (in thousands):

	Operating Leases
2022	$	89,202
2023	65,893
2024	52,382
2025	43,976
2026	36,016
Thereafter	108,542
Total future minimum lease payments	396,011
Less: interest	71,800
Present value of future minimum lease payments	$	324,211
As of December 31, 2021
Current portion of lease liabilities	$	73,150
Long-term portion of lease liabilities	251,061
Total	$	324,211

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SHARE-BASED COMPENSATION

12 Months Ended

Dec. 31, 2021

Share-based Payment Arrangement [Abstract]

SHARE-BASED COMPENSATION

SHARE-BASED COMPENSATIONOur 2003 Long-Term Stock Incentive Plan, as amended (the “2003 Incentive Plan”), is an equity-based compensation plan that allows us to grant a variety of types of awards, including stock options, restricted stock awards, stock appreciation rights, cash awards, phantom stock awards, restricted stock unit awards (“RSUs”) and long-term incentive awards with performance conditions (“performance share units” or “PSUs”). Awards are generally granted once per year, with the amounts and types of awards determined by the Compensation Committee of our Board of Directors (the “Committee”). In connection with the Merger (as defined herein) with Ply Gem Parent, LLC (“Ply Gem”) , on November 16, 2018, awards were granted to certain senior executives and key employees (the “Founders Awards”), which included stock options, RSUs, and PSUs. A portion of the Founders Awards was not granted under the 2003 Incentive Plan but was instead granted pursuant to a separate equity-based compensation plan, the Long-Term Incentive Plan. These Founders Awards were subject to award agreements with the same terms and provisions as awards of the same type granted under the 2003 Incentive Plan.

As of December 31, 2021, and for all periods presented, the Founders Awards and our share-based awards granted under the 2003 Incentive Plan have consisted of RSUs, PSUs and stock options, none of which can be settled through cash payments. Both our stock options and restricted stock awards are subject only to vesting requirements based on continued employment through the end of a specified time period and typically vest in annual increments over three to five years or earlier upon death, disability or a change in control. As a general rule, stock option awards expire on the earlier of (i) 10 years from the date of grant, (ii) 60 days after termination of employment or service for a reason other than death, disability or retirement, or (iii) 180 days after death, disability or retirement. Awards are non-transferable except by disposition on death or to certain family members, trusts and other family entities as the Committee may approve.

Our time-based restricted stock awards are typically subject to graded vesting over a service period, which is three to five years. Our performance-based and market-based restricted stock awards are typically subject to cliff vesting at the end of the service period, which is typically three years. Our share-based compensation arrangements are equity classified and we recognize compensation cost for these awards on a straight-line basis over the requisite service period for each award grant. In the case of performance-based awards, expense is recognized based upon management’s assessment of the probability that such performance conditions will be achieved. Certain of our awards provide for accelerated vesting upon a change of control or upon termination without cause or for good reason.

A total of approximately 6,594,000 and 8,497,000 shares were available at December 31, 2021 and 2020, respectively, under the 2003 Incentive Plan for further grants of awards.

Vesting of the PSUs granted as part of the Founders Awards was contingent upon the achievement of synergies captured from the Merger and continued employment. Based on achieved synergies during the period comprising the two fiscal years ended December 31, 2020, the Founders Awards vested at 200% of target amounts in November 2021. Vesting of the PSUs granted under the 2003 Incentive Plan during the years ended December 31, 2021 and 2020 are contingent upon achievement of a cumulative three-year EBITDA growth target with an additional modifier based on total stockholders return. The grant-date fair values of the PSUs granted during the years ended December 31, 2021 and 2020 were determined by Monte Carlo simulations.

Stock Option Awards

The fair value of each option award is estimated as of the date of grant using a Black-Scholes-Merton option pricing formula. Expected volatility is based on normalized historical volatility of our stock over a preceding period commensurate with the expected term of the option. The risk-free rate for the expected term of the option is based on the U.S. Treasury yield curve in effect at the time of grant. Expected dividend yield was not considered in the option pricing formula since we do not currently pay dividends on our Common Stock and have no current plans to do so in the future.

During fiscal 2021, 2020 and 2019, we granted 815,258, 1,120,644 and 359,873 stock options, respectively, and the weighted average grant-date fair value of options granted during fiscal 2021, 2020 and 2019 was $7.38, $2.13 and $1.97, respectively.

The assumptions for the option awards granted in fiscal 2021, 2020 and 2019 were as follows:

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Volatility rate	49.03	%	47.52	%	39.87	%
Expected term (in years)	6.00		6.00		6.50
Risk-free interest rate	1.02	%	0.48	%	1.73	%

The following is a summary of stock option transactions during fiscal 2021, 2020 and 2019 (in thousands, except weighted average exercise prices and weighted average remaining life):

	Number of Shares	Weighted Average Exercise Price		Weighted Average Remaining Life	Aggregate Intrinsic Value
Balance, December 31, 2018	3,297	12.08
Granted	360	4.67
Forfeited	(713)	12.16
Cancelled	(96)	9.17
Balance, December 31, 2019	2,848	11.22
Granted	1,121	4.86
Forfeited	(539)	11.26
Cancelled	(215)	11.85
Balance, December 31, 2020	3,215	8.95
Granted	815	15.01
Exercised	(301)	10.85
Forfeited	(647)	9.17
Cancelled	(37)	10.37
Balance, December 31, 2021	3,045	$	10.28	7.8	$	21,817
Exercisable at December 31, 2021	1,235	$	9.23	7.0	$	10,136

The following summarizes additional information concerning outstanding options at December 31, 2021 (in thousands, except weighted average remaining life and weighted average exercise prices):

Options Outstanding
Number of Options	Weighted Average Remaining Life	Weighted Average Exercise Price
1,119	8.0 years	$	4.91
1,926	7.8 years	13.40
3,045	7.8 years	$	10.28

The following summarizes additional information concerning options exercisable at December 31, 2021 (in thousands, except weighted average exercise prices):

Options Exercisable
Number of Options	Weighted Average Remaining Life	Weighted Average Exercise Price
507	7.8 years	$	4.83
728	6.5 years	12.30
1,235	7.0 years	$	9.23

There were 300,976 options exercised during fiscal 2021 and cash received from the option exercises was $3.3 million. The total intrinsic value of options exercised in fiscal 2021 was $1.5 million. The tax benefit realized for the tax deductions from options exercised totaled $0.6 million for fiscal 2021. No options were exercised during fiscal 2020 and 2019.

Restricted stock and performance awards

During fiscal 2021, 2020 and 2019, we granted time-based RSUs with a fair value of $18.7 million, $7.0 million and $3.3 million, respectively.

During the fiscal 2021, 2020 and 2019, we granted PSUs with fair values of approximately $28.0 million, $5.6 million and $0.4 million, respectively, to certain executives.

Restricted stock and performance award transactions during fiscal 2021, 2020 and 2019 were as follows (in thousands, except weighted average grant prices):

	Restricted Stock and Performance Awards
	Time-Based			Performance-Based
	Number of Shares	Weighted Average Grant Price		Number of Shares(1)	Weighted Average Grant Price
Balance, December 31, 2018	2,245	$	12.57	1,037	$	14.63
Granted	703	5.40		76	4.67
Vested	(586)	12.42		(234)	16.30
Forfeited	(543)	11.00		(168)	13.09
Balance, December 31, 2019	1,819	$	10.32	711	$	13.38
Granted	1,399	5.04		1,068	5.25
Vested	(422)	11.77		(192)	19.65
Forfeited	(442)	9.76		(212)	8.49
Balance, December 31, 2020	2,354	$	7.02	1,375	$	6.93
Granted	1,248	14.97		1,525	24.48
Vested	(1,099)	6.23		(763)	10.67
Forfeited	(511)	9.64		(698)	11.38
Balance, December 31, 2021	1,992	$	11.76	1,439	$	17.73

(1)The number of restricted stock shown reflects the shares that would be granted if the target level of performance is achieved. The number of shares actually issued may vary.

Share-Based Compensation Expense

Share-based compensation expense is recorded over the requisite service or performance period. For awards with performance conditions, the amount of share-based compensation expense recognized is based upon the probable outcome of the performance conditions, as defined and determined by management. We account for forfeitures of outstanding but unvested grants in the period they occur.

Share-based compensation expense recognized during fiscal 2021, 2020 and 2019 was $29.0 million, $17.1 million and $14.1 million, respectively. The total income tax benefit recognized in results of operations for share-based compensation arrangements was $7.5 million, $4.4 million and $3.7 million in fiscal 2021, 2020 and 2019, respectively. Included in the share-based compensation expense during fiscal 2021 were accelerated awards of $1.0 million due to the retirement of the Company’s former CEO and modification of certain awards that included fully vesting certain restricted stock unit awards that would otherwise be forfeited at retirement, extending the post-retirement exercise period for stock options vesting at the retirement date, and allowing continued vesting of certain performance unit award that would otherwise be forfeited at the retirement date. As of December 31, 2021, we do not have any amounts capitalized for share-based compensation cost in inventory or similar assets.

Unrecognized share-based compensation expense and weighted average period over which expense attributable to unvested awards will be recognized are as follows (in millions, except weighted average remaining years):

	Year Ended December 31, 2021
	Unrecognized Share-Based Compensation Expense		Weighted Average Remaining Years
Stock options	$	7.8	2.1
Time-based restricted stock	16.8		2.1
Performance-based restricted stock	19.7		1.6
Total unrecognized share-based compensation expense	$	44.3

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EARNINGS PER COMMON SHARE

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

EARNINGS PER COMMON SHARE

EARNINGS PER COMMON SHARE

Basic earnings per common share is computed by dividing net income allocated to common shares by the weighted average number of common shares outstanding. Diluted income per common share, if applicable, considers the dilutive effect of common stock equivalents. The reconciliation of the numerator and denominator used for the computation of basic and diluted income per common share is as follows (in thousands, except per share data):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Numerator for Basic and Diluted Earnings Per Common Share:
Net income (loss) applicable to common shares	$	658,044	$	(482,778)	$	(15,390)
Denominator for Basic and Diluted Earnings Per Common Share:
Weighted average basic number of common shares outstanding	126,058		125,562		125,576
Common stock equivalents:
Employee stock options	737		—		—
Weighted average diluted number of common shares outstanding	126,795		125,562		125,576
Basic earnings (loss) per common share	$	5.22	$	(3.84)	$	(0.12)
Diluted earnings (loss) per common share	$	5.19	$	(3.84)	$	(0.12)
Incentive Plan securities excluded from dilution(1)	275		2,559		4,480

(1)Represents securities not included in the computation of diluted earnings per common share because their effect would have been anti-dilutive.

We calculate earnings per share using the “two-class” method, whereby unvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents are “participating securities” and, therefore, these participating securities are treated as a separate class in computing earnings per share. The calculation of earnings per share presented here excludes the income attributable to unvested restricted stock units related to our Incentive Plan from the numerator and excludes the dilutive impact of those shares from the denominator. Awards subject to the achievement of performance conditions or market conditions for which such conditions had been met at the end of any of the fiscal periods presented are included in the computation of diluted earnings per common share if their effect was dilutive.

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OTHER ACCRUED EXPENSES

12 Months Ended

Dec. 31, 2021

Payables and Accruals [Abstract]

OTHER ACCRUED EXPENSES

OTHER ACCRUED EXPENSESOther accrued expenses are comprised of the following (in thousands):

	December 31, 2021		December 31, 2020
Sales and marketing	$	99,845	$	69,236
Accrued warranty obligation and deferred warranty revenue	30,181		26,094
Other accrued expenses	190,363		152,563
Total other accrued expenses	$	320,389	$	247,893

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WARRANTY

12 Months Ended

Dec. 31, 2021

Product Warranties Disclosures [Abstract]

WARRANTY

WARRANTY

The following table represents the rollforward of our accrued warranty obligation and deferred warranty revenue activity for the years ended December 31, 2021 and 2020 (in thousands):

	December 31, 2021		December 31, 2020
Beginning balance	$	216,230	$	216,173
Acquisitions	10,518		109
Warranties sold	1,986		2,677
Revenue recognized	(2,650)		(2,746)
Expense	26,129		28,566
Settlements	(31,612)		(28,549)
Divestiture	(2,245)		—
Ending balance	218,356		216,230
Less: current portion	30,181		26,094
Total warranty, less current portion	$	188,175	$	190,136

The current portion of the warranty liabilities is recorded within other accrued expenses and the long-term portion of the warranty liabilities is recorded within other long-term liabilities on the Company’s consolidated balance sheets.

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LONG-TERM DEBT

12 Months Ended

Dec. 31, 2021

Debt Disclosure [Abstract]

LONG-TERM DEBT

LONG-TERM DEBT

Debt is comprised of the following (in thousands):

	December 31, 2021		December 31, 2020
Term loan facility due April 2028	$	2,580,500	$	2,497,967
8.00% senior notes due April 2026	—		645,000
6.125% senior notes due January 2029	500,000		500,000
Less: unamortized discounts and unamortized deferred financing costs(1)	(43,657)		(53,938)
Total long-term debt, net of unamortized discounts and unamortized deferred financing costs	3,036,843		3,589,029
Less: current portion of long-term debt	26,000		25,600
Total long-term debt, less current portion	$	3,010,843	$	3,563,429

(1)Includes the unamortized discounts and unamortized deferred financing costs associated with the term loan facility, the 8.00% senior notes due April 2026 (included in the December 31, 2020 balance only as the notes were redeemed in full in April 2021), and the 6.125% senior notes due January 2029. The unamortized deferred financing costs associated with the asset-based and revolving credit facilities of $1.3 million and $1.7 million as of December 31, 2021 and 2020, respectively, are classified in other assets on the consolidated balance sheets.

The scheduled maturity of our debt is as follows (in thousands):

2022	$	26,000
2023	26,000
2024	26,000
2025	26,000
2026 and thereafter	2,976,500
	$	3,080,500

Term Loan Facility due April 2028 and Cash Flow Revolver

On April 12, 2018, Ply Gem Midco entered into a Cash Flow Agreement (the "Current Cash Flow Credit Agreement"), which provides for (i) a term loan facility (the “Existing Term Loan Facility”) in an original aggregate principal amount of $1,755.0 million, issued with a discount of 0.5%, and (ii) a cash flow-based revolving credit facility (the “Existing Cash Flow Revolver” and together with the Existing Term Loan Facility, the “Existing Cash Flow Facilities”) of up to $115.0 million.

On November 16, 2018, the Company entered into an incremental term loan facility in connection with the Merger, which increased the aggregate principal amount of the Existing Term Loan Facility by $805.0 million. The proceeds of this incremental term loan facility were used to, among other things, (a) finance the Merger and to pay certain fees, premiums and expenses incurred in connection therewith, (b) repay in full amounts outstanding under the Pre-merger Term Loan Credit Agreement and the Pre-merger ABL Credit Agreement and (c) repay $325.0 million of borrowings outstanding under the ABL Facility. On November 16, 2018, in connection with the consummation of the Merger, NCI and Ply Gem Midco entered into a joinder agreement with respect to the Existing Cash Flow Facilities, and the Company became the Borrower (as defined in the Current Cash Flow Credit Agreement) under the Existing Cash Flow Facilities.

On April 15, 2021, the Company entered into a Second Amendment to the Current Cash Flow Credit Agreement (the “Second Amendment"), among the Company, the several banks and other financial institutions party thereto (the "Cash Flow Lenders") and JPMorgan Chase Bank, N.A., as administrative agent and collateral agent (the “Cash Flow Agent”), which amended the Current Cash Flow Credit Agreement to, among other things:

•Terminate $92.0 million of commitments by Cash Flow Lenders under the Company’s cash flow-based revolving credit facility of up to $115.0 million, maturing on April 12, 2023 (the “Existing Cash Flow Revolver”; and

•Replace such commitments with $92.0 million of extended cash flow-based revolving commitments, maturing on April 12, 2026 (the “Extended Cash Flow Revolver” and together with the Existing Cash Flow Revolver, the “Current Cash Flow Revolver”).

On April 15, 2021, the Company entered into (i) a Third Amendment to Current Cash Flow Credit Agreement (the “Third Amendment”), among the Company, the subsidiary guarantors parties thereto, the Cash Flow Lenders party thereto and the Cash Flow Agent and (ii) an Increase Supplement (the “Increase Supplement”), between the Company and JPMorgan Chase Bank, N.A., as the increasing lender. The Third Amendment amended the Current Cash Flow Credit Agreement to, among other things, refinance the Existing Term Loan Facility in an original aggregate principal amount of $1,755.0 million with Tranche B Term Loans in an aggregate principal amount of approximately $2,491.6 million, maturing on April 12, 2028. The Increase Supplement supplemented the Current Cash Flow Credit Agreement to, among other things, increase the aggregate principal amount of the Tranche B Term Loan Facility by approximately $108.4 million (the “Incremental Tranche B Term Loans”), for a total principal amount of $2,600.0 million (the “Current Term Loan Facility” and together with the Current Cash Flow Revolver, the “Current Cash Flow Facilities”). Proceeds of the Incremental Tranche B Term Loans were used, together with cash on hand, (i) for the redemption of all of the 8.00% Senior Notes (as defined below) (the “Senior Notes Redemption”) and (ii) to pay any fees and expenses incurred in connection with the extension and refinancing of the Company’s senior credit facilities and the Senior Notes Redemption.

In connection with the Third Amendment and the Increase Supplement to the Current Cash Flow Credit Agreement, the Company incurred $24.8 million in financing costs of which $13.2 million was deferred and are being amortized using the effective interest method.

The Current Term Loan Facility amortizes in nominal quarterly installments equal to one percent of the aggregate initial principal amount thereof per annum, with the remaining balance payable upon final maturity. The Current Term Loan Facility bears annual interest at a floating rate measured by reference to, at the Company’s option, either (i) an adjusted LIBOR rate (subject to a floor of 0.50%) plus an applicable margin of 3.25% per annum or (ii) an alternate base rate plus an applicable margin of 2.25% per annum. At December 31, 2021, the interest rates on the Current Term Loan Facility were as follows:

	December 31, 2021
Interest rate	3.75	%
Effective interest rate	4.02	%

The Company entered into certain interest rate swap agreements in 2019 and 2021 to effectively convert a portion of its variable rate debt to fixed. See Note 14 — Derivatives.

Loans outstanding under the Current Cash Flow Revolver bear annual interest at a floating rate measured by reference to, at the Company’s option, either (i) an adjusted LIBOR rate (subject to a floor of 0.00%) plus an applicable margin ranging from 2.50% to 3.00% per annum depending on the Company’s secured leverage ratio or (ii) an alternate base rate plus an applicable margin ranging from 1.50% to 2.00% per annum depending on the Company’s secured leverage ratio. There are no amortization payments under the Current Cash Flow Revolver. Additionally, unused commitments under the Current Cash Flow Revolver are subject to a fee ranging from 0.25% to 0.50% per annum depending on the Company’s secured leverage ratio.

Both the Current Term Loan Facility and Current Cash Flow Revolver may be prepaid at the Company’s option at any time without premium or penalty (other than customary breakage costs), subject to minimum principal amount requirements.

Subject to certain exceptions, the Current Term Loan Facility is subject to mandatory prepayments in an amount equal to:

•the net cash proceeds of (1) certain asset sales, (2) certain debt offerings and (3) certain insurance recovery and condemnation events; and

•50% of annual excess cash flow (as defined in the Current Cash Flow Credit Agreement), subject to reduction to 25% and 0% if specified secured leverage ratio targets are met to the extent that the amount of such excess cash flow exceeds $10.0 million. No payments were required in 2021 under the fiscal year 2020 excess cash flow calculation.

The obligations under the Current Cash Flow Credit Agreement are guaranteed by each direct and indirect wholly-owned U.S. restricted subsidiary of the Company, subject to certain exceptions, and are secured by:

•a perfected security interest in substantially all tangible and intangible assets of the Company and each subsidiary guarantor (other than ABL Priority Collateral (as defined below)), including the capital stock of each direct material wholly-owned U.S. restricted subsidiary owned by the Company and each subsidiary guarantor, and 65% of the capital stock of any non-U.S. subsidiary held directly by the Company or any subsidiary guarantor, subject to certain exceptions (the “Cash Flow Priority Collateral”), which security interest will be senior to the security interest in the foregoing assets securing the Current ABL Facility; and

•a perfected security interest in the ABL Priority Collateral, which security interest will be junior to the security interest in the ABL Priority Collateral securing the Current ABL Facility.

The Current Cash Flow Revolver includes a financial covenant set at a maximum secured leverage ratio of 7.75:1.00, which will apply if the outstanding amount of loans and drawings under letters of credit which have not then been reimbursed exceeds a specified threshold at the end of any fiscal quarter.

ABL Facility due April 2026

On April 12, 2018, Ply Gem Midco entered into an ABL Credit Agreement (the “Current ABL Credit Agreement”), which provides for an asset-based revolving credit facility (the “Existing ABL Facility”) of up to $360.0 million, consisting of (i) $285.0 million available to U.S. borrowers (subject to U.S. borrowing base availability) (the “ABL U.S. Facility”) and (ii) $75.0 million available to both U.S. borrowers and Canadian borrowers (subject to U.S. borrowing base and Canadian borrowing base availability) (the “ABL Canadian Facility”). The Company and, at their option, certain of their subsidiaries are the borrowers under the Existing ABL Facility.

On October 15, 2018, Ply Gem Midco entered into an incremental asset-based revolving credit facility of $36.0 million, which upsized the Existing ABL Facility to $396.0 million in the aggregate, and with (x) the ABL U.S. Facility being increased from $285.0 million to $313.5 million and (y) the ABL Canadian Facility being increased from $75.0 million to $82.5 million.

On November 16, 2018, Ply Gem Midco entered into an incremental asset-based revolving credit facility of $215.0 million in connection with the Merger, which upsized the Existing ABL Facility to $611.0 million in the aggregate, and with (x) the ABL U.S. Facility being increased from $313.5 million to approximately $483.7 million and (y) the ABL Canadian Facility being increased from $82.5 million to approximately $127.3 million. On November 16, 2018, in connection with the consummation of the Merger, the Company and Ply Gem Midco entered into a joinder agreement with respect to the Existing ABL Facility, and the Company became the Parent Borrower (as defined in the ABL Credit Agreement) under the Existing ABL Facility.

On April 15, 2021, the Company entered into Amendment No. 6 to the Current ABL Credit Agreement, by and among the Company, the subsidiary borrowers party thereto, the several banks and financial institutions party thereto and UBS AG, Stamford Branch, as administrative agent and collateral agent, which amended the ABL Credit Agreement in order to, among other things:

•Terminate the existing revolving commitments of each of the Extending ABL Credit Lenders (as defined in therein), originally maturing on April 12, 2023 (the “Existing ABL Commitments”); and

•Replace the Existing ABL Commitments with an extended revolving commitment of $611.0 million, maturing on April 12, 2026 (the “Current ABL Facility”).

Borrowing availability under the Current ABL Facility is determined by a monthly borrowing base collateral calculation that is based on specified percentages of the value of eligible inventory, eligible accounts receivable and eligible credit card receivables, less certain reserves and subject to certain other adjustments as set forth in the Current ABL Credit Agreement. Availability is reduced by issuance of letters of credit as well as any borrowings. As of December 31, 2021, the Company had the following in relation to the Current ABL Facility (in thousands):

	December 31, 2021
Excess availability	$	565,576
Revolving loans outstanding	0
Letters of credit outstanding	40,257

Loans outstanding under the Current ABL Facility bear interest at a floating rate measured by reference to, at the Company’s option, either (i) an adjusted LIBOR rate (subject to a LIBOR floor of 0.00%) plus an applicable margin ranging from 1.25% to 1.75% per annum depending on the average daily excess availability under the Current ABL Facility or (ii) an alternate base rate plus an applicable margin ranging from 0.25% to 0.75% per annum depending on the average daily excess availability under the ABL Facility. Additionally, unused commitments under the ABL Facility are subject to a 0.25% per annum fee.

The obligations under the Current ABL Credit Agreement are guaranteed by each direct and indirect wholly-owned U.S. restricted subsidiary of the Company, subject to certain exceptions, and are secured by:

•a perfected security interest in all present and after-acquired inventory, accounts receivable, deposit accounts, securities accounts, and any cash or other assets in such accounts and other related assets owned by the Company and the U.S. subsidiary guarantors and the proceeds of any of the foregoing, except to the extent such proceeds constitute Cash Flow Priority Collateral, and subject to certain exceptions (the “ABL Priority Collateral”), which security interest is senior to the security interest in the foregoing assets securing the Current Cash Flow Facilities; and

•a perfected security interest in the Cash Flow Priority Collateral, which security interest will be junior to the security interest in the Cash Flow Collateral securing the Current Cash Flow Facilities.

Additionally, the obligations of the Canadian borrowers under the Current ABL Credit Agreement are guaranteed by each direct and indirect wholly-owned Canadian restricted subsidiary of the Canadian borrowers, subject to certain exceptions, and are secured by substantially all assets of the Canadian borrowers and the Canadian subsidiary guarantors, subject to certain exceptions.

The Current ABL Credit Agreement includes a minimum fixed charge coverage ratio of 1.00:1.00, which is tested only when specified availability is less than 10.0% of the lesser of (x) the then applicable borrowing base and (y) the then aggregate effective commitments under the Current ABL Facility, and continuing until such time as specified availability has been in excess of such threshold for a period of 20 consecutive calendar days.

6.125% Senior Notes due January 2029

On September 24, 2020, the Company issued $500.0 million in aggregate principal amount of 6.125% Senior Notes due January 2029 (“the 6.125% Senior Notes”). Proceeds from the 6.125% Senior Notes were used to repay outstanding amounts under the Company’s Current ABL Facility and Current Cash Flow Revolver. The 6.125% Senior Notes bear interest at 6.125% per annum and will mature on January 15, 2029. Interest is payable semi-annually in arrears on January 15 and July 15 commencing on January 15, 2021. The effective interest rate for the 6.125% Senior Notes was 6.33% as of December 31, 2021, after considering each of the different interest expense components of this instrument, including the coupon payment and the deferred debt issuance costs.

The 6.125% Senior Notes are guaranteed on a senior unsecured basis by each of the Company’s existing and future wholly-owned domestic subsidiaries that guarantee the Company’s obligations under the Current Cash Flow Facilities or the Current ABL Facility (including by reason of being a borrower under the Current ABL Facility on a joint and several basis with the Company or a subsidiary guarantor). The 6.125% Senior Notes are unsecured senior indebtedness and are effectively subordinated to all of the Company’s existing and future senior secured indebtedness, including indebtedness under the Current Term Loan Facility, Current Cash Flow Revolver and Current ABL Facility, and are senior in right of payment to future subordinated indebtedness of the Company.

The Company may redeem the 6.125% Senior Notes in whole or in part at any time as set forth below:

•prior to September 15, 2023, at a price equal to 100% of the principal amount thereof, plus accrued and unpaid interest, if any, to but not including the redemption date, plus the applicable make-whole premium;

•prior to September 15, 2023, up to 40% of the aggregate principal amount with the proceeds of certain equity offerings at a redemption price of 106.125% plus accrued and unpaid interest, if any, to but not including the redemption date;

•on or after September 15, 2023 and prior to September 15, 2024, at a price equal to 103.063% of the principal amount thereof, plus accrued and unpaid interest, if any, to but not including the redemption date;

•on or after September 15, 2024 and prior to September 15, 2025, at a price equal to 101.531% of the principal amount thereof, plus accrued and unpaid interest, if any, to but not including the redemption date; and

•on or after September 15, 2025, at a price equal to 100.000% of the principal amount thereof, plus accrued and unpaid interest, if any, to but not including the redemption date.

Redemption of 8.00% Senior Notes

On April 15, 2021, the Company redeemed the outstanding $645.0 million aggregate principal amount of the 8.00% Senior Notes due April 2026 (the “8.00% Senior Notes”) for $670.8 million using cash on hand and proceeds from the Incremental Tranche B Term Loans. The redemption resulted in a pre-tax loss on extinguishment of debt of $41.9 million during the year ended December 31, 2021, comprising a make-whole premium of $25.8 million and a write-off of $16.1 million in unamortized deferred financing costs.

Debt Covenants

The Company’s debt agreements contain a number of covenants that, among other things, limit or restrict the ability of the Company and its subsidiaries to incur additional indebtedness; make dividends and other restricted payments; incur additional liens; consolidate, merge, sell or otherwise dispose of all or substantially all assets; make investments; transfer or sell assets; enter into restrictive agreements; change the nature of the business; and enter into certain transactions with affiliates. As of December 31, 2021, the Company was in compliance with all covenants that were in effect on such date.

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DERIVATIVES

12 Months Ended

Dec. 31, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

DERIVATIVES

DERIVATIVES

We utilize derivative instruments, including interest rate swap agreements and foreign currency hedging contracts, to manage our exposure to interest rate risk and currency fluctuations. We only hold such instruments for economic hedging purposes, not for speculative or trading purposes. Our derivative instruments are transacted only with highly rated institutions, which reduces our exposure to credit risk in the event of nonperformance.

Interest Rate Swaps

We are exposed to interest rate risk associated with fluctuations in interest rates on our floating-rate Current Term Loan Facility. The objective in using interest rate derivatives is to manage our exposure to interest rate movements. To accomplish this objective, we have entered into interest rate swap agreements as part of our interest rate risk management strategy. Interest rate swaps involve the receipt of variable amounts from a counterparty in exchange for the company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount.

On a monthly basis, we net settle with our swap counterparties for the difference between the fixed rate specified in each swap agreement and the variable rate as applied to the notional amount of the swap.

In May 2019, the Company entered into four-year interest rate swaps to mitigate variability in forecasted interest payments on $1,500.0 million of the Company’s Current Term Loan Facility. The interest rate swaps effectively converted a portion of the floating rate interest payment into a fixed rate interest payment. Three interest rate swaps each covered a notional amount of $500.0 million. The Company designated the interest rate swaps as qualifying hedging instruments and accounted for these derivatives as cash flow hedges.

As discussed in Note 13 — Long-Term Debt, the Company refinanced its Term Loan Facility. Contemporaneously with the refinancing on April 15, 2021, we completed a series of transactions to modify our interest rate swap positions as follows: (i) we de-designated all existing interest rate swaps as cash flow hedges; (ii) we terminated two existing interest rate swaps with a notional value of $500.0 million each; (iii) we entered into two receive-fixed interest rate swaps with a notional amount of $250.0 million each, which are designed to offset the terms of an existing, active interest rate swap with a notional amount of $500.0 million; and (iv) we entered into two pay-fixed interest rate swaps with a notional amount of $750 million each, effectively blending the liability position of our existing interest rate swap agreements into the new swaps and extending the term of our hedged position to April 2026.

The amount remaining in accumulated other comprehensive loss for the de-designated and terminated swaps as of December 31, 2021 was approximately $44.7 million and is being amortized as an increase to interest expense over the effective period of the original swap agreements.

The new receive-fixed interest rate swaps remain undesignated to economically offset the now undesignated existing, active swap. The new receive-fixed and the existing, active swaps mature on July 12, 2023. Cash settlements related to these receive-fixed interest rate swaps are classified as operating activities in the consolidated statements of cash flows.

The new pay-fixed interest rate swaps also qualify as hybrid instruments in accordance with ASC 815, Derivatives and Hedging, consisting of a financing component and an embedded at-market derivative that was designated as a cash flow hedge. The financing component is accounted for at amortized cost over the life of the swap while the embedded at-market derivative is accounted for at fair value. The new swaps are indexed to one-month LIBOR and are net settled on a monthly basis with the counterparty for the difference between the fixed rate of 2.0369% and 2.0340%, respectively, and the variable rate based upon one-month LIBOR (subject to a floor of 0.5%) as applied to the notional amount of the swaps. In connection with the transactions discussed above, no cash was exchanged between the Company and the counterparty. The liability of the terminated interest rate swaps as well as the inception value of the receive-fixed interest rate swap was blended into the new pay-fixed interest rate swap. The cash flows related to the portion treated as a financing component are classified as financing activities while the cash flows related to the portion treated as an at-market derivative are classified as operating activities in the consolidated statements of cash flows.

The key terms of interest rate swaps are as follows (amounts in thousands):

			December 31, 2021			December 31, 2020
Effective Date	Fixed Rate Paid (Received)		Notional Amount		Status	Notional Amount		Status	Maturity Date
Entered into May 2019:
July 12, 2019	2.1570	%	$	—	Terminated	$	500,000	Active	July 12, 2023
July 12, 2019	2.1560	%	—		Terminated	500,000		Active	July 12, 2023
July 12, 2019	2.1680	%	500,000		Active	500,000		Active	July 12, 2023
Entered into April 2021:
April 15, 2021	2.0369	%	750,000		Active				April 15, 2026
April 15, 2021	2.0340	%	750,000		Active				April 15, 2026
April 15, 2021	(2.1680)	%	(250,000)		Active				July 12, 2023
April 15, 2021	(2.1680)	%	(250,000)		Active				July 12, 2023
			$	1,500,000		$	1,500,000

The embedded at-market derivative portion of our interest rate swap agreements is recognized at fair value on the consolidated balance sheets. It is valued using pricing models that rely on market observable inputs such as yield curve data, which are classified as Level 2 inputs within the fair value hierarchy.

Foreign Currency Forward Contracts

In December 2020 and during 2021, the Company entered into forward contracts to hedge a portion of its non-functional currency inventory purchases. These forward contracts were established to protect the Company from variability in cash flows attributable to changes in the U.S. dollar relative to the Canadian dollar. The forward contracts are highly correlated to the changes in the U.S. dollar relative to the Canadian dollar. All of the Company’s foreign currency forward contracts are initially designated as qualifying hedging instruments and are accounted for as cash flow hedges in accordance with ASC 815, Derivatives and Hedging. Unrealized gains and losses on these contracts are designated as effective or ineffective. The effective portion of such gains or losses is recorded as a component of accumulated other comprehensive income or loss, while the ineffective portion of such gains or losses is recorded as a component of cost of goods sold. Future realized gains and losses in connection with each inventory purchase will be reclassified from accumulated other comprehensive income or loss to cost of goods sold. The gains and losses on the derivative contracts that are reclassified from accumulated other comprehensive income or loss to current period earnings are included in the line item in which the hedged item is recorded in the same period the forecasted transaction affects earnings.

During the year ended December 31, 2021, the Company realized a loss of approximately $1.1 million within cost of goods sold in the consolidated statements of operations based on the foreign currency forward contracts described above. The changes in fair values of derivatives that have been designated and qualify as cash flow hedges are recorded in accumulated other comprehensive income or loss and are reclassified into cost of goods sold in the same period the hedged item affects earnings. Due to the high degree of effectiveness between the hedging instruments and the underlying exposures being hedged, fluctuations in the value of the derivative instruments are generally offset by changes in the fair value or cash flows

of the underlying exposures being hedged. The changes in the fair value of derivatives that do not qualify as effective are immediately recognized in earnings. As of December 31, 2021, the Company had a hedge asset of approximately $0.7 million and a gain of approximately $0.8 million in accumulated other comprehensive loss on the consolidated balance sheets. No hedge liability or asset or deferred gain or loss in accumulated other comprehensive loss existed as of December 31, 2020 related to the forward contracts.

Fair Values of Derivatives on the Consolidated Balance Sheets

The fair values of our derivatives and their presentation on the consolidated balance sheets as of December 31, 2021 and 2020 were as follows (in thousands):

		December 31, 2021				December 31, 2020
		Assets		Liabilities		Assets		Liabilities
Derivatives not designated as hedging instruments	Financial statement line item
Interest rate swaps	Other assets(1)	$	11,543	$	—	$	—	$	—
	Other long-term liabilities(2)	—		11,543		—		—
Total		$	11,543	$	11,543	$	—	$	—
Derivatives designated as hedging instruments	Financial statement line item
Interest rate swaps	Other accrued expenses(3)	$	—	$	13,127	$	—	$	—
	Other long-term liabilities(3)	—		28,279		—		75,770
Foreign currency forward contracts	Prepaid expenses and other	728		—		—		—
Total		$	728	$	41,406	$	—	$	75,770

(1)The balance as of December 31, 2021 is related to receive-fixed interest rate swaps for which the fair value option has been elected.

(2)The balance as of December 31, 2021 is related to a pay-fixed May 2019 active interest rate swap which has been de-designated as a cash flow hedge.

(3)The balances as of December 31, 2021 include the financing component of the pay-fixed interest rate swaps.

Effect of Derivatives on the Consolidated Statements of Operations

The effect of our derivatives and their presentation on the consolidated statements of operations for the years ended December 31, 2021 and 2020 were as follows (in thousands):

		Year Ended
		December 31, 2021		December 31, 2020
Derivatives not designated as hedging instruments	Financial statement line item
Interest rate swaps	Interest expense(1)	$	21,164	$	—
Foreign currency forward contracts	Cost of sales	1,083		—
Derivatives designated as hedging instruments
Interest rate swaps	Interest expense	15,998		24,198
		$	38,245	$	24,198

(1)For the year ended December 31, 2021, the entire balance related to the reclassification from accumulated other comprehensive loss to interest expense is due to de-designation from hedge accounting of all May 2019 interest rate swaps.

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CD&R INVESTOR GROUP

12 Months Ended

Dec. 31, 2021

Temporary Equity Disclosure [Abstract]

CD&R INVESTOR GROUP

CD&R INVESTOR GROUPOn August 14, 2009, the Company entered into an Investment Agreement (as amended, the “Investment Agreement”), by and between the Company and Clayton, Dubilier & Rice Fund VIII, L.P., a Cayman Islands exempted limited partnership (“CD&R Fund VIII”). In connection with the Investment Agreement and the Stockholders Agreement dated October 20, 2009 (the “Old Stockholders Agreement”), CD&R Fund VIII and CD&R Friends & Family Fund VIII, L.P., a Cayman

Islands exempted limited partnership (“CD&R FF Fund” and, together with CD&R Fund VIII, the “CD&R Fund VIII Investor Group”) purchased convertible preferred stock of the Company, which was converted into shares of our common stock on May 14, 2013.

In January 2014, the CD&R Fund VIII Investor Group completed a registered underwritten offering, in which the CD&R Fund VIII Investor Group offered 8.5 million shares of Common Stock at a price to the public of $18.00 per share (the “2014 Secondary Offering”). The underwriters also exercised their option to purchase 1.275 million additional shares of Common Stock. In addition, the Company entered into an agreement with the CD&R Fund VIII Investor Group to repurchase 1.15 million shares of its Common Stock at a price per share equal to the price per share paid by the underwriters to the CD&R Fund VIII Investor Group in the underwritten offering (the “2014 Stock Repurchase”). The 2014 Stock Repurchase, which was completed at the same time as the 2014 Secondary Offering, represented a private, non-underwritten transaction between NCI and the CD&R Fund VIII Investor Group that was approved and recommended by the Affiliate Transactions Committee of our Board of Directors.

On July 25, 2016, the CD&R Fund VIII Investor Group completed a registered underwritten offering, in which the CD&R Fund VIII Investor Group offered 9.0 million shares of our Common Stock at a price to the public of $16.15 per share (the “2016 Secondary Offering”). The underwriters also exercised their option to purchase 1.35 million additional shares of our Common Stock from the CD&R Fund VIII Investor Group. The aggregate offering price for the 10.35 million shares sold in the 2016 Secondary Offering was approximately $160.1 million, net of underwriting discounts and commissions. The CD&R Fund VIII Investor Group received all of the proceeds from the 2016 Secondary Offering and no shares in the 2016 Secondary Offering were sold by the Company or any of its officers or directors (although certain of our directors are affiliated with the CD&R Fund VIII Investor Group).

On July 18, 2016, the Company entered into an agreement with the CD&R Fund VIII Investor Group to repurchase approximately 2.9 million shares of our Common Stock at the price per share equal to the price per share paid by the underwriters to the CD&R Fund VIII Investor Group in the underwritten offering (the “2016 Stock Repurchase”). The 2016 Stock Repurchase, which was completed concurrently with the 2016 Secondary Offering, represented a private, non-underwritten transaction between the Company and the CD&R Fund VIII Investor Group that was approved and recommended by the Affiliate Transactions Committee of our Board of Directors. See Note 20 — Stock Repurchase Program.

On December 11, 2017, the CD&R Fund VIII Investor Group completed a registered underwritten offering of 7,150,000 shares of the Company’s Common Stock at a price to the public of $19.36 per share (the “2017 Secondary Offering”). Pursuant to the underwriting agreement, at the CD&R Fund VIII Investor Group request, the Company purchased 1.15 million of the 7.15 million shares of the Company’s Common Stock from the underwriters in the 2017 Secondary Offering at a price per share equal to the price at which the underwriters purchased the shares from the CD&R Fund VIII Investor Group. The total amount the Company spent on these repurchases was $22.3 million.

Ply Gem Holdings was acquired by CD&R Fund X and Atrium Intermediate Holdings, LLC, GGC BP Holdings, LLC and AIC Finance Partnership, L.P. (collectively, the “Golden Gate Investor Group”) and merged with Atrium on April 12, 2018 (the “Ply Gem-Atrium Merger”).

Pursuant to the terms of the Merger Agreement, on November 16, 2018, the Company entered into (i) a stockholders agreement (the “New Stockholders Agreement”) between the Company, and each of the CD&R Fund VIII Investor Group, CD&R Pisces Holdings, L.P., a Cayman Islands exempted limited partnership (“CD&R Pisces”, and together with the CD&R Fund VIII Investor Group, the “CD&R Investor Group”) and the Golden Gate Investor Group (together with the CD&R Investor Group, the “Investors”), pursuant to which the Company granted to the Investors certain governance, preemptive and subscription rights and (ii) a registration rights agreement (the “New Registration Rights Agreement”) between the Company and each of the Investors, pursuant to which the Company granted the Investors customary demand and piggyback registration rights, including rights to demand registrations and underwritten shelf registration statement offerings with respect to the shares of the Company’s Common Stock that are held by the Investors following the consummation of the Merger.

On August 25, 2020, the Company filed a shelf registration statement on Form S-3, declared effective by the SEC on September 2, 2020, registering the resale of shares of the Company’s Common Stock held by CD&R Pisces. The Company had previously registered the resale of shares of the Company’s Common Stock held by the CD&R Fund VIII Investor Group and the Golden Gate Investor Group.

Pursuant to the terms of the New Stockholders Agreement, the Company and the CD&R Fund VIII Investor Group terminated the Old Stockholders Agreement. Pursuant to the terms of the New Registration Rights Agreement, the Company and the CD&R Fund VIII Investor Group terminated the Registration Rights Agreement, dated as of October 20, 2009 (the “Old Registration Rights Agreement”), by and among the Company and the CD&R Fund VIII Investor Group.

At December 31, 2021 and 2020, the CD&R Investor Group owned approximately 48.8% and 49.4%, respectively, of the outstanding shares of the Company’s Common Stock.

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RELATED PARTIES	12 Months Ended
	Dec. 31, 2021
Related Party Transactions [Abstract]
RELATED PARTIES	RELATED PARTIESPursuant to the Investment Agreement and the New Stockholders Agreement, the CD&R Investor Group had the right to designate a number of directors to the Company’s Board of Directors that was equivalent to the CD&R VIII Investor Group’s percentage interest in the Company. Among other directors appointed by the CD&R Investor Group, our Board of Directors appointed John Krenicki, Nathan K. Sleeper and Jonathan L. Zrebiec to the Board of Directors. Messrs. Krenicki, Sleeper and Zrebiec are partners of Clayton, Dubilier & Rice, LLC, (“CD&R, LLC”), an affiliate of the CD&R Investor Group.As a result of their respective positions with CD&R, LLC and its affiliates, one or more of Messrs. Krenicki, Sleeper and Zrebiec may be deemed to have an indirect material interest in certain agreements executed in connection with the Equity Investment and the Merger.

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FAIR VALUE OF FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS

12 Months Ended

Dec. 31, 2021

Fair Value Disclosures [Abstract]

FAIR VALUE OF FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS

FAIR VALUE OF FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS

Fair Value of Financial Instruments

The carrying amounts of cash and cash equivalents, restricted cash, trade accounts receivable and accounts payable approximate fair value as of December 31, 2021 and 2020 because of the relatively short maturities of these instruments. The carrying amounts of the indebtedness under the Current ABL Facility and Current Cash Flow Revolver approximate fair value as the interest rates are variable and reflective of market rates. At December 31, 2021, there were no borrowings outstanding under the Current ABL Facility and no outstanding indebtedness under the Current Cash Flow Revolver. The fair values of the remaining financial instruments not currently recognized at fair value on our consolidated balance sheets at the respective period ends were (in thousands): 

	December 31, 2021				December 31, 2020
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Term loan facility	$	2,580,500	$	2,570,823	$	2,497,967	$	2,485,477
8.00% Senior Notes	—		—		645,000		674,025
6.125% Senior Notes	500,000		531,900		500,000		530,000

The fair value of the term loan facility was based on recent trading activities of comparable market instruments, which are level 2 inputs and the fair values of the 8.00% and 6.125% senior notes were based on quoted prices in active markets for the identical liabilities, which are level 1 inputs.

Fair Value Measurements

ASC Subtopic 820-10, Fair Value Measurements and Disclosures, requires us to use valuation techniques to measure fair value that maximize the use of observable inputs and minimize the use of unobservable inputs. These inputs are prioritized as follows:

Level 1: Observable inputs such as quoted prices for identical assets or liabilities in active markets.

Level 2: Other inputs that are observable directly or indirectly, such as quoted prices for similar assets or liabilities or market-corroborated inputs.

Level 3: Unobservable inputs for which there is little or no market data and which require us to develop our own assumptions about how market participants would price the assets or liabilities.

The following is a description of the valuation methodologies used for assets and liabilities measured at fair value. There have been no changes in the methodologies used as of December 31, 2021 and 2020.

Money market: Money market funds have original maturities of three months or less. The original cost of these assets approximates fair value due to their short-term maturity.

Mutual funds: Mutual funds are valued at the closing price reported in the active market in which the mutual fund is traded.

Deferred compensation plan liability: Deferred compensation plan liability is comprised of phantom investments in the deferred compensation plan and is valued at the closing price reported in the active markets in which the money market and mutual funds are traded.

Interest rate swaps: Interest rate swaps are based on cash flow hedge contracts that have fixed rate structures and are measured against market-based LIBOR yield curves. These interest rate swaps are classified within Level 2 of the fair value

hierarchy because they are valued using alternative pricing sources or models that utilized market observable inputs, including current and forward interest rates.

Foreign currency forward contracts: The fair value of the foreign currency forward contracts are classified within Level 2 of the fair value hierarchy because they are estimated using industry standard valuation models using market-based observable inputs, including spot rates, forward points, interest rates and volatility inputs.

The following tables summarize information regarding our financial assets and liabilities that are measured at fair value on a recurring basis as of December 31, 2021 and 2020, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value (in thousands):

	December 31, 2021
	Level 1		Level 2		Level 3		Total
Assets:
Short-term investments in deferred compensation plan:(1)
Money market	$	24	$	—	$	—	$	24
Mutual funds – Growth	557		—		—		557
Mutual funds – Blend	1,560		—		—		1,560
Mutual funds – Foreign blend	467		—		—		467
Mutual funds – Fixed income	—		151		—		151
Total short-term investments in deferred compensation plan(2)	2,608		151		—		2,759
Foreign currency forward contracts	—		728		—		728
Interest rate swap assets(3)	—		11,543		—		11,543
Total assets	$	2,608	$	12,422	$	—	$	15,030
Liabilities:
Deferred compensation plan liability(2)	$	—	$	2,759	$	—	$	2,759
Interest rate swap liabilities(4)	—		52,949		—		52,949
Total liabilities	$	—	$	55,708	$	—	$	55,708

	December 31, 2020
	Level 1		Level 2		Level 3		Total
Assets:
Short-term investments in deferred compensation plan:(1)
Money market	$	349	$	—	$	—	$	349
Mutual funds – Growth	487		—		—		487
Mutual funds – Blend	1,006		—		—		1,006
Mutual funds – Foreign blend	338		—		—		338
Mutual funds – Fixed income	—		153		—		153
Total short-term investments in deferred compensation plan(2)	2,180		153		—		2,333
Total assets	$	2,180	$	153	$	—	$	2,333
Liabilities:
Deferred compensation plan liability(2)	$	—	$	2,339	$	—	$	2,339
Interest rate swap liabilities	—		75,770		—		75,770
Total liabilities	$	—	$	78,109	$	—	$	78,109

(1)Unrealized holding gains (losses) were $0.2 million and $(0.5) million for the years ended December 31, 2021 and 2020, respectively.

(2)The Company records the short-term investments in deferred compensation plan within investments in debt and equity securities, at market, and the deferred compensation plan liability within accrued compensation and benefits on the consolidated balance sheets.

(3)The interest rate swap assets relate to receive-fixed interest rate swaps for which the fair value option has been elected.

(4)The balance as of December 31, 2021 includes $41.4 million related to the financing component of pay-fixed interest rate swaps and $11.5 million related to pay-fixed May 2019 active interest rate swaps which have been de-designated as cash flow hedges.

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INCOME TAXES

12 Months Ended

Dec. 31, 2021

Income Tax Disclosure [Abstract]

INCOME TAXES

INCOME TAXESIncome tax expense is based on pretax financial accounting income. Deferred income taxes are recognized for the temporary differences between the recorded amounts of assets and liabilities for financial reporting purposes and such amounts for income tax purposes.

The following is a summary of the components of income (loss) before provision (benefit) for income taxes (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Domestic	$	818,635	$	(420,014)	$	(12,016)
Foreign	83,192		(57,201)		1,401
	$	901,827	$	(477,215)	$	(10,615)

The components of the provision for income taxes consisted of the following (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Current:
Federal	$	219,379	$	(1,343)	$	(311)
State	64,509		7,316		7,219
Foreign	11,590		3,909		3,952
Total current	295,478		9,882		10,860
Deferred:
Federal	(43,980)		82		205
State	(18,363)		1,462		1,875
Foreign	2,833		(5,863)		(8,165)
Total deferred	(59,510)		(4,319)		(6,085)
Total provision (benefit)	$	235,968	$	5,563	$	4,775

The reconciliation of income tax computed at the United States federal statutory tax rate to the effective income tax rate is as follows:

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Federal income tax at statutory rate	$	189,384	$	(100,215)	$	(2,229)
State income taxes	34,071		7,482		8,059
Non-deductible expenses	180		217		62
Gain on divestitures	9,725		—		—
Compensation related expenses	2,573		3,630		3,518
Meals and entertainment	552		465		1,265
Tax credits	(14,285)		(3,343)		(7,179)
Foreign income tax	3,413		(2,820)		(884)
Employee fringe benefits	480		443		474
Unrecognized tax benefits	5,686		(157)		(581)
Reversal of valuation allowance	—		—		(3,981)
Global intangible low-taxed income	8,248		4,317		4,398
Goodwill impairment	—		94,793		—
Transaction costs	—		—		1,903
Other	(4,059)		751		(50)
Total provision (benefit)	$	235,968	$	5,563	$	4,775

The increase in the effective tax rate for the year ended December 31, 2021 is primarily a result of higher pre-tax earnings relating to the gains on the Insulated Metal Panels and DBCI divestitures. The Company’s statutory federal

corporate income tax rate for the year ended December 31, 2020 resulted from lower pre-tax earnings related to the goodwill impairment of $503.2 million, of which approximately $438.7 million had no tax basis, and the net impact of the Tax Cuts and Jobs Act (“U.S. Tax Reform”) that was enacted by the United States on December 22, 2017.

Deferred income taxes reflect the net impact of temporary differences between the amounts of assets and liabilities recognized for financial reporting purposes and such amounts recognized for income tax purposes. The tax effects of the temporary differences as December 31, 2021 and 2020 are as follows (in thousands):

	December 31, 2021		December 31, 2020
Deferred tax assets:
Inventory obsolescence	$	4,363	$	4,369
Bad debt reserve	2,511		2,302
Accrued and deferred compensation	13,136		7,522
Accrued insurance reserves	7,895		8,429
Net operating loss and tax credit carryover	41,732		61,169
Pension	1,148		4,576
Leases	72,812		68,589
Warranty	44,925		44,969
Other reserves	52,635		48,258
Total deferred tax assets	241,157		250,183
Less valuation allowance	(15,634)		(11,996)
Net deferred tax assets	225,523		238,187
Deferred tax liabilities:
Depreciation and amortization	(388,730)		(424,254)
Stock basis	(12,733)		(12,826)
Leases	(72,098)		(66,962)
Other	(2,296)		(2,070)
Total deferred tax liabilities	(475,857)		(506,112)
Total deferred tax liability, net	$	(250,334)	$	(267,925)

We carry out our business operations through legal entities in the U.S., Canada, Mexico and Costa Rica. These operations require that we file corporate income tax returns that are subject to U.S., state and foreign tax laws. We are subject to income tax audits in these multiple jurisdictions.

As of December 31, 2021, the $41.7 million net operating loss carryforward included $20.8 million for U.S federal losses, $13.3 million for U.S. state losses, and $7.6 million for foreign losses. Federal and foreign net operating losses will begin to expire in 2029, if unused, and state operating losses began to expire in 2021, if unused. There are limitations on the utilization of certain net operating losses.

Valuation allowance

As of December 31, 2021, the Company remains in a valuation allowance position, in the amount of $15.6 million, against its deferred tax assets for certain state jurisdictions as it is currently deemed “more likely than not” that the benefit of such net tax assets will not be utilized as the Company continues to be in a three-year cumulative loss position for these state jurisdictions. The Company will continue to monitor the positive and negative factors for these jurisdictions and make further changes to the valuation allowance as necessary.

The rollforward of the valuation allowance on deferred taxes is as follows for the periods indicated (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Beginning balance	$	11,996	$	10,347	$	19,497
Additions (reductions)	3,638		1,649		(9,150)
Ending balance	$	15,634	$	11,996	$	10,347

Uncertain tax positions

Despite the Company’s belief that its tax return positions are consistent with applicable tax laws, the Company believes that certain positions could be challenged by taxing authorities. The Company’s tax reserves reflect the difference between the tax benefit claimed on tax returns and the amount recognized in the consolidated financial statements. These reserves have been established based on management’s assessment as to potential exposure attributable to permanent differences and interest and penalties applicable to both permanent and temporary differences. The tax reserves are reviewed periodically and adjusted in light of changing facts and circumstances, such as progress of tax audits, lapse of applicable statutes of limitations and changes in tax law. The Company is currently under examination by various taxing authorities.

As of December 31, 2021, the reserve was approximately $17.4 million, which includes interest and penalties of approximately $2.6 million and is recorded in other long-term liabilities in the accompanying consolidated balance sheets. Of this amount, approximately $14.8 million, if recognized would have an impact on the Company's effective tax rate. The Company has elected to treat interest and penalties on unrecognized tax benefits as income tax expense in its consolidated statement of operations. Interest and penalty charges have been recorded in the contingency reserve account within other long-term liabilities on the consolidated balance sheets.

The following is a rollforward of unrecognized tax benefits (excluding interest and penalties) for the years ended December 31, 2021 and 2020 (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020
Unrecognized tax benefits at beginning of year	$	9,403	$	10,107
Additions based on tax positions related to current year	6,037		194
Reductions for tax positions of prior years	15		(39)
Reductions resulting from expiration of statute of limitations	(610)		(859)
Unrecognized tax benefits at end of year	$	14,845	$	9,403

CARES Act

In response to the COVID-19 pandemic, the Coronavirus Aid, Relief and Economic Security Act ("CARES Act") was signed into law on March 27, 2020. The CARES Act, among other things, includes tax provisions relating to refundable payroll tax credits, deferment of employer side social security payments, net operating loss utilization and carryback periods, modifications to the net interest deduction limitations and technical corrections to tax depreciation methods for qualified improvement property (“QIP”). Specifically, the CARES Act amends IRC §163(j) for tax years 2019 and 2020. The CARES Act increases the 30% adjusted taxable income threshold to 50% and allows taxpayers to elect to use their 2019 adjusted taxable income as their adjusted taxable income in the 2020 §163(j) calculation. The combination of these two factors will allow the Company to deduct additional interest expense for income tax purposes that would have been previously disallowed. Additionally, the Company deferred employer side social security payments for approximately $19.9 million as of December 31, 2020. In December 2021, the Company paid approximately $10 million in related deferred employer side social security payments and approximately $10 million has been recorded in current liabilities on the consolidated balance sheet as of December 31, 2021. The Company continues to evaluate the impact of the CARES Act on our financial position, results of operations, and cash flows.

Other tax considerations

As of December 31, 2021, the Company has not established U.S. deferred taxes on unremitted earnings for the Company’s foreign subsidiaries. The Company continues to consider these amounts to be permanently invested with the exception of its Mexican subsidiary. The indefinite reinvestment assertion continues to apply for the remaining foreign subsidiaries for purposes of determining deferred tax liabilities for U.S. state and foreign withholding tax purposes.

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ACCUMULATED OTHER COMPREHENSIVE LOSS

12 Months Ended

Dec. 31, 2021

Equity [Abstract]

ACCUMULATED OTHER COMPREHENSIVE LOSS

ACCUMULATED OTHER COMPREHENSIVE LOSSAccumulated other comprehensive loss consists of the following (in thousands):

	December 31, 2021		December 31, 2020
Foreign exchange translation adjustments	$	22,741	$	16,147
Unrealized loss on derivative instruments, net of tax benefit of $5,549 and $17,612, respectively	(23,407)		(58,625)
Defined benefit pension plan actuarial losses, net of tax benefit of $1,854 and $5,049, respectively	(4,946)		(9,039)
Accumulated other comprehensive loss	$	(5,612)	$	(51,517)

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STOCK REPURCHASE PROGRAM

12 Months Ended

Dec. 31, 2021

Equity [Abstract]

STOCK REPURCHASE PROGRAM

STOCK REPURCHASE PROGRAM

On October 10, 2017 and March 7, 2018, the Company announced that its Board of Directors authorized new stock repurchase programs for up to an aggregate of $50.0 million and $50.0 million, respectively, of the Company’s Common Stock for a cumulative total of $100.0 million.

During fiscal 2021 and 2019, there were no stock repurchases under the stock repurchase programs. During fiscal 2020, the Company repurchased 1.1 million shares of its Common Stock for $6.4 million through open-market purchases under the authorized stock repurchase programs. As of December 31, 2021, approximately $49.1 million remains available for stock repurchases under the program authorized on March 7, 2018. The authorized programs have no time limit on their duration, but our Current Cash Flow Credit Agreement and Current ABL Credit Agreement apply certain limitations on our repurchase of shares of our Common Stock. The timing and method of any repurchases, which will depend on a variety of factors, including market conditions, are subject to results of operations, financial conditions, cash requirements and other factors, and may be suspended or discontinued at any time.

In addition to the Common Stock repurchases, the Company also withheld shares of restricted stock to satisfy minimum tax withholding obligations arising in connection with the vesting of restricted stock units, which are included in treasury stock purchases in the consolidated statements of stockholders’ equity.

During fiscal 2021, 2020 and 2019, the Company canceled 0.6 million, 1.3 million and 0.3 million shares, respectively, of which 1.1 million canceled shares, for fiscal 2020, related to repurchased shares under stock repurchase programs. The remainder of the canceled shares related to shares used to satisfy minimum tax withholding obligations in connection with the vesting of stock awards. The cancellations resulted in $9.7 million, $8.0 million and $2.4 million decreases in both additional paid-in capital and treasury stock during fiscal 2021, 2020 and 2019, respectively.

Changes in treasury stock, at cost, were as follows (in thousands):

	Number of Shares	Amount
Balance, December 31, 2018	111	$	1,678
Purchases	257	1,934
Retirements	(307)	(2,423)
Deferred compensation obligation	(6)	(86)
Balance, December 31, 2019	56	$	1,103
Purchases	1,298	7,994
Retirements	(1,299)	(7,995)
Deferred compensation obligation	(30)	(592)
Balance, December 31, 2020	25	$	510
Purchases	612	9,685
Retirements	(612)	(9,685)
Deferred compensation obligation	(4)	(86)
Balance, December 31, 2021	21	$	424

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EMPLOYEE BENEFIT PLANS

12 Months Ended

Dec. 31, 2021

Retirement Benefits [Abstract]

EMPLOYEE BENEFIT PLANS

EMPLOYEE BENEFIT PLANSDefined Contribution Plan — The Company has a 401(k) profit sharing plan (“Savings Plan”) that allows participation for all eligible employees. The Savings Plan allows the Company to match between 50% and 100% of the participant’s

contributions up to 5% of a participant’s pre-tax deferrals. Contributions expense for fiscal 2021, 2020 and 2019 was $16.3 million, $16.2 million and $13.3 million, respectively, for matching contributions to the Savings Plan.

Deferred Compensation Plan — The Company has an Amended and Restated Deferred Compensation Plan (as amended and restated, the “Deferred Compensation Plan”) that allows its officers and key employees to defer up to 80% of their annual salary and up to 90% of their bonus on a pre-tax basis until a specified date in the future, including at or after retirement. Additionally, the Deferred Compensation Plan allows the Company’s directors to defer up to 100% of their annual fees and meeting attendance fees until a specified date in the future, including at or after retirement. The Deferred Compensation Plan also permits the Company to make contributions on behalf of its key employees who are impacted by the federal tax compensation limits under the Savings Plan, and to receive a restoration matching amount which, under the current Savings Plan terms, mirrors the Savings Plan matching levels based on the Company’s performance. The Deferred Compensation Plan provides for the Company to make discretionary contributions to employees who have elected to defer compensation under the plan. Deferred Compensation Plan participants will vest in the Company’s discretionary contributions ratably over three years from the date of each of the Company’s discretionary contributions.

As of December 31, 2021 and 2020, the liability balance of the Deferred Compensation Plan was $2.8 million and $2.3 million, respectively, and was included in accrued compensation and benefits on the consolidated balance sheets. The Company has not made any discretionary contributions to the Deferred Compensation Plan. A rabbi trust is used to fund the Deferred Compensation Plan and an administrative committee manages the Deferred Compensation Plan and its assets. The investments in the rabbi trust were $2.8 million and $2.3 million as of December 31, 2021 and 2020, respectively. The rabbi trust investments include debt and equity securities as well as cash equivalents and are accounted for as trading securities.

Defined Benefit Plans — With the acquisition of RCC on April 7, 2006, the Company assumed a defined benefit plan (the “RCC Pension Plan”). Benefits under the RCC Pension Plan are primarily based on years of service and the employee’s compensation. The RCC Pension Plan is frozen and, therefore, employees do not accrue additional service benefits. Plan assets of the RCC Pension Plan are invested in broadly diversified portfolios of government obligations, mutual funds, stocks, bonds and fixed income securities.

On January 16, 2015, the Company assumed noncontributory defined benefit plans covering certain hourly employees (the “Coil Coating Benefit Plans”) which are closed to new participants. Benefits under the Coil Coating Benefit Plans are calculated based on fixed amounts for each year of service rendered. The Company also sponsors postretirement medical and life insurance plans that cover certain of its employees and their spouses (the “OPEB Plans”). The contributions to the OPEB Plans by retirees vary from none to 25% of the total premiums paid. Plan assets of the Coil Coating Benefit Plans are invested in fixed income funds. Currently, the Company’s policy is to fund the Coil Coating Benefit Plans as required by minimum funding standards of the Internal Revenue Code.

As a result of the Merger on November 16, 2018, the Company assumed the Ply Gem Group Pension Plan (the “Ply Gem Plan”) and the MW Manufacturers, Inc. Retirement Plan (the “MW Plan”). The Ply Gem Plan was frozen during 1998, and no further increases in benefits for participants may occur as a result of increases in service years or compensation. The MW Plan was frozen for salaried participants during 2004 and non-salaried participants during 2005. No additional participants may enter the plan, but increases in benefits for participants as a result of increase in service years or compensation will occur.

The Company refers to the RCC Pension Plan, the Coil Coating Benefit Plans, the Ply Gem Plan and the MW Plan collectively as the “Defined Benefit Plans” in this Note.

Assumptions—Weighted average actuarial assumptions used to determine benefit obligations were as follows:

	Defined Benefit Plans				OPEB Plans
	December 31, 2021		December 31, 2020		December 31, 2021		December 31, 2020
Discount rate	2.85	%	2.50	%	2.85	%	2.45	%

Weighted average actuarial assumptions used to determine net periodic benefit cost (income) were as follows:

	Defined Benefit Plans				OPEB Plans
	FY 2021		FY 2020		FY 2021		FY 2020
Discount rate	2.50	%	3.30	%	2.45	%	3.20	%
Expected return on plan assets	5.95	%	5.87	%	n/a		n/a

The basis used to determine the expected long-term rate of return on assets assumptions for the Defined Benefit Plans was recent market performance and historical returns. The assumptions for the plans are primarily long-term, prospective rates.

The health care cost trend rate assumed for 2022 is 6.00% and is assumed to decline each year to an ultimate trend rate of 4.00%, which is expected to be achieved in 2030.

Funded status—The changes in the projected benefit obligation, plan assets and funded status, and the amounts recognized on our consolidated balance sheets were as follows (in thousands):

	Defined Benefit Plans				OPEB Plans
	FY 2021		FY 2020		FY 2021		FY 2020
Change in benefit obligation
Benefit obligation at beginning of period	$	104,934	$	101,148	$	7,575	$	7,778
Service cost	54		46		17		17
Interest cost	2,542		3,231		178		237
Benefits paid	(6,641)		(6,883)		(985)		(661)
Actuarial (gains) losses	(3,755)		7,392		(283)		204
Benefit obligation at end of period	$	97,134	$	104,934	$	6,502	$	7,575
Accumulated benefit obligation at end of period	$	97,134	$	104,934
Change in plan assets
Fair value of assets at beginning of period	$	94,215	$	86,105	$	—	$	—
Actual return on plan assets	8,162		10,574		—		—
Company contributions	3,218		4,419		985		661
Benefits paid	(6,641)		(6,883)		(985)		(661)
Fair value of assets at end of period	$	98,954	$	94,215	$	—	$	—
Funded status at end of period	$	1,820	$	(10,719)	$	(6,502)	$	(7,575)
Amounts recognized on the consolidated balance sheets
Noncurrent assets	$	5,098	$	5,056	$	—	$	—
Current liabilities	—		—		(546)		(656)
Noncurrent liabilities	(3,278)		(15,775)		(5,956)		(6,919)
	$	1,820	$	(10,719)	$	(6,502)	$	(7,575)

Certain of our defined pension plans have projected benefit obligations in excess of the fair value of plan assets. For these plans, the projected benefit obligations and the fair value of plan assets were as follows (in thousands):

	December 31, 2021		December 31, 2020
Projected benefit obligations	$	46,372	$	90,267
Fair value of plan assets	43,093		74,491
Funded status	$	(3,279)	$	(15,776)

Plan assets—The investment policy is to maximize the expected return for an acceptable level of risk. Our expected long-term rate of return on plan assets is based on a target allocation of assets, which is based on our goal of earning the highest rate of return while maintaining risk at acceptable levels.

As of December 31, 2021 and 2020, the weighted average asset allocations by asset category for the Defined Benefit Plans were as follows (in thousands):

Investment type	December 31, 2021		December 31, 2020
Equity securities	31	%	60	%
Debt securities	67	%	34	%
Real estate	2	%	6	%
Total	100	%	100	%

The principal investment objectives are to ensure the availability of funds to pay pension and postretirement benefits as they become due under a broad range of future economic scenarios, to maximize long-term investment return with an acceptable level of risk based on our pension and postretirement obligations, and to be sufficiently diversified across and within the capital markets to mitigate the risk of adverse or unexpected results from one security class having an unduly detrimental impact on the entire portfolio. Each asset class has broadly diversified characteristics. Decisions regarding investment policy are made with an understanding of the effect of asset allocation on funded status, future contributions and projected expenses.

We have set the target asset allocations for the RCC Pension Plan and the Ply Gem Plan at 30% equity and 70% fixed income, and the MW Plan at 50% equity and 50% fixed income. The Coil Coating Benefit Plans have a target asset allocation of 100% fixed income.

The fair values of the assets of the Defined Benefit Plans at December 31, 2021 and 2020, by asset category and by levels of fair value, as further defined in Note 17 — Fair Value of Financial Instruments and Fair Value Measurements were as follows (in thousands):

	December 31, 2021						December 31, 2020
Asset category	Level 1		Level 2		Total		Level 1		Level 2		Total
Cash and cash equivalents	$	20	$	—	$	20	$	48	$	—	$	48
Mutual funds:
Growth funds	6,649		—		6,649		11,677		—		11,677
Real estate funds	2,072		—		2,072		5,966		—		5,966
Equity income funds	6,197		—		6,197		9,031		—		9,031
Index funds	12,642		—		12,642		26,364		—		26,364
International equity funds	4,883		—		4,883		8,844		—		8,844
Fixed income funds	12,982		53,509		66,491		12,562		19,723		32,285
Total	$	45,445	$	53,509	$	98,954	$	74,492	$	19,723	$	94,215

Net periodic benefit cost (income) —The components of the net periodic benefit cost (income) were as follows (in thousands):

	Defined Benefit Plans
	FY 2021		FY 2020		FY 2019
Service cost	$	54	$	46	$	42
Interest cost	2,542		3,231		3,897
Expected return on assets	(5,439)		(4,958)		(4,935)
Amortization of prior service cost	65		62		58
Amortization of loss	416		433		1,313
Net periodic benefit cost (income)	$	(2,362)	$	(1,186)	$	375

	OPEB Plans
	FY 2021		FY 2020		FY 2019
Service cost	$	17	$	17	$	22
Interest cost	178		237		262
Amortization of loss	70		108		—
Net periodic benefit cost	$	265	$	362	$	284

The amounts in accumulated other comprehensive income that have not yet been recognized as components of net periodic benefit income are as follows (in thousands):

	Defined Benefit Plans				OPEB Plans
	December 31, 2021		December 31, 2020		December 31, 2021		December 31, 2020
Unrecognized actuarial loss	$	5,450	$	12,345	$	1,350	$	1,703
Unrecognized prior service cost	—		65		—		—
Total	$	5,450	$	12,410	$	1,350	$	1,703

Unrecognized actuarial gains (losses), net of tax, of $4.1 million and $(1.1) million during fiscal 2021 and 2020, respectively, are included in other comprehensive income (loss) in the consolidated statements of comprehensive income (loss).

The changes in plan assets and benefit obligation recognized in other comprehensive income (loss) are as follows (in thousands):

	Defined Benefit Plans
	FY 2021		FY 2020		FY 2019
Net actuarial loss (gain)	$	(6,479)	$	1,777	$	(315)
Amortization of net actuarial loss	(416)		(433)		(1,313)
Amortization of prior service cost	(65)		(63)		(58)
Total recognized in other comprehensive income (loss)	$	(6,960)	$	1,281	$	(1,686)

	OPEB Plans
	FY 2021		FY 2020		FY 2019
Net actuarial loss (gain)	$	(283)	$	204	$	1,367
Amortization of net actuarial loss	(70)		(108)		—
Total recognized in other comprehensive income (loss)	$	(353)	$	96	$	1,367

We expect to contribute $0.5 million to the OPEB Plans in fiscal 2022. We expect the following benefit payments to be made (in thousands):

Fiscal years ending	Defined Benefit Plans		OPEB Plans
2022	$	6,554	$	554
2023	6,522		539
2024	6,417		485
2025	6,337		463
2026	6,268		391
2027 - 2031	29,529		1,923

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SEGMENT INFORMATION

12 Months Ended

Dec. 31, 2021

Segment Reporting [Abstract]

SEGMENT INFORMATION

SEGMENT INFORMATION

Operating segments are defined as components of an enterprise that engage in business activities for which discrete financial information is available and is evaluated on a regular basis by the chief operating decision maker to make decisions regarding the allocation of resources to the segment and assess the performance of the segment. The Company has three reportable segments: Windows, Siding and Commercial.

These operating segments follow the same accounting policies used for our consolidated financial statements. We evaluate a segment’s performance on a U.S. GAAP basis based primarily upon operating income before corporate expenses.

Corporate assets consist primarily of cash, investments, prepaid expenses, current and deferred taxes and property, plant and equipment associated with our headquarters in Cary, North Carolina and office in Houston, Texas. These items (and income and expenses related to these items) are not allocated to the operating segments. Corporate unallocated expenses primarily include share-based compensation expenses, restructuring charges, acquisition-related costs, and other expenses related to executive, legal, finance, tax, treasury, human resources, information technology and strategic sourcing, and corporate travel expenses. Additional unallocated amounts primarily include non-operating items such as interest income, interest expense, loss on extinguishment of debt and other income (expense).

Summary financial data attributable to the segments for the periods indicated is as follows (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Net sales:
Windows	$	2,322,277	$	1,889,625	$	1,930,447
Siding	1,364,080		1,141,946		1,111,407
Commercial	1,896,780		1,585,798		1,847,893
Total net sales	$	5,583,137	$	4,617,369	$	4,889,747
Operating income (loss):
Windows	$	100,725	$	(223,646)	$	92,538
Siding	137,772		(61,930)		66,273
Commercial	1,104,335		159,586		201,073
Corporate	(205,587)		(140,516)		(145,148)
Total operating income (loss)	$	1,137,245	$	(266,506)	$	214,736
Unallocated other expense, net	(235,418)		(210,709)		(225,351)
Income (loss) before income taxes	$	901,827	$	(477,215)	$	(10,615)
Depreciation and amortization:
Windows	$	134,626	$	121,519	$	94,737
Siding	116,660		113,737		121,004
Commercial	36,282		45,213		44,550
Corporate	5,333		4,133		3,473
Total depreciation and amortization expense	$	292,901	$	284,602	$	263,764
Capital expenditures:
Windows	$	49,001	$	22,197	$	43,408
Siding	33,198		28,558		22,695
Commercial	16,934		26,833		51,144
Corporate	15,582		4,263		3,838
Total capital expenditures	$	114,715	$	81,851	$	121,085
			December 31, 2021		December 31, 2020
Property, plant and equipment, net:
Windows			$	251,627	$	223,206
Siding			155,346		159,761
Commercial			174,440		227,391
Corporate			30,882		21,463
Total property, plant and equipment, net			$	612,295	$	631,821
Total assets:
Windows			$	2,223,098	$	1,717,032
Siding			2,060,275		2,123,615
Commercial			1,073,264		890,380
Corporate			470,823		747,463
Total assets			$	5,827,460	$	5,478,490

Summary financial data attributable to various geographic regions for the periods indicated is as follows (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Total sales:
United States of America	$	5,132,085	$	4,304,559	$	4,526,385
Canada	422,867		305,780		340,250
Mexico	9,417		3,093		3,381
All other	18,768		3,937		19,731
Total net sales	$	5,583,137	$	4,617,369	$	4,889,747
			December 31, 2021		December 31, 2020
Long-lived assets:
United States of America			$	3,213,052	$	3,107,027
Canada			270,752		292,503
Costa Rica			324		189
Mexico			10,858		11,435
Total long-lived assets			$	3,494,986	$	3,411,154

Sales are determined based on customers’ requested shipment location.

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CONTINGENCIES

12 Months Ended

Dec. 31, 2021

Commitments and Contingencies Disclosure [Abstract]

CONTINGENCIES

CONTINGENCIES

As a manufacturer of products primarily for use in building construction, the Company is inherently exposed to various types of contingent claims, both asserted and unasserted, in the ordinary course of business. As a result, from time to time, the Company and/or its subsidiaries become involved in various legal proceedings or other contingent matters arising from claims or potential claims arising out of its operations and businesses that cover a wide range of matters, including, among others, environmental, contract, employment, intellectual property, securities, personal injury, property damage, product liability, warranty, and modification, adjustment or replacement of component parts or units sold, which may include product recalls. The Company insures (or self-insures) against these risks to the extent deemed prudent by its management and to the extent insurance is available. The Company regularly reviews the status of ongoing proceedings and other contingent matters along with legal counsel. Liabilities for such items are recorded when it is probable that the liability has been incurred and when the amount of the liability can be reasonably estimated. Liabilities are adjusted when additional information becomes available. Management believes that the ultimate disposition of these matters will not have a material adverse effect on the Company’s results of operations, financial position or cash flows. However, such matters are subject to many uncertainties and outcomes and are not predictable with assurance.

Further, due to the lack of adequate information and the potential impact of present regulations and any future regulations, there are certain circumstances in which no range of potential exposure may be reasonably estimated. Also, it is not possible to ascertain the ultimate legal and financial liability with respect to certain contingent liabilities, including lawsuits, and therefore no such estimate has been made as of December 31, 2021.

Environmental

The Company’s operations are subject to various federal, state, local and foreign environmental, health and safety laws. Among other things, these laws regulate the emissions or discharge of materials into the environment; govern the use, storage, treatment, disposal and management of hazardous substances and wastes; protect the health and safety of its employees and the end-users of its products; regulate the materials used in its products; and impose liability for the costs of investigating and remediating (as well as other damages resulting from) present and past releases of hazardous substances. Violations of these laws or of any conditions contained in environmental permits could result in substantial fines or penalties, injunctive relief, consent orders, requirements to install pollution controls or other abatement equipment, or civil sanctions.

The Company could be held liable for costs to investigate, remediate or otherwise address contamination at any real property it has ever owned, operated or used as a disposal site, or at other sites where we or predecessors may have released hazardous materials. The Company could incur fines, penalties or sanctions or be subject to third-party claims, including indemnification claims, for property damage, personal injury or otherwise as a result of violations of (or liabilities under) environmental, health and safety laws, or in connection with releases of hazardous or other materials.

MW Manufacturers, Inc. (“MW”), a subsidiary of Ply Gem Industries, Inc., entered into a September 2011 Administrative Order on Consent with the U.S. Environmental Protection Agency (“EPA”) under the Corrective Action Program to address known releases of hazardous substances at MW’s Rocky Mount, Virginia property. A Phase I RCRA Facility Investigation (“RFI”) was submitted to the Virginia Department of Environmental Quality (“VDEQ”) in December 2015, and a Phase II RFI and the Human Health Risk Assessment and Baseline Ecological Risk Assessment were submitted in October 2018. A Limited Corrective Measures Study based on the investigations was submitted to the VDEQ for review and approval in September 2019. Upon completion of a 30-day public comment period, the VDEQ issued its Final Decision and Response to Comments approving a final remedy in May 2021. The final remedy consists of continuing groundwater monitoring until the VDEQ’s corrective actions have been met; and implementing and complying with land use restrictions and institutional controls imposed by an environmental covenant. The Company has recorded a liability of $4.5 million for this MW site, of which $1.0 million is in other current liabilities and $3.5 million is in other long-term liabilities on the Company’s consolidated balance sheet as of December 31, 2021. 

The EPA is investigating groundwater contamination at a Superfund site in York, Nebraska, referred to as the PCE/TCE Northeast Contamination Site (“PCE/TCE Site”). Kroy Building Products, Inc. (“KBP”), a subsidiary of Ply Gem Industries, Inc., has been identified as a potentially responsible party at the site and has liability for investigation and remediation costs associated with the contamination. In May 2019, KBP and an unrelated respondent entered into an Administrative Settlement Agreement and Order on Consent with the EPA to conduct a Remedial Investigation/Feasibility Study (“RI/FS”) of the PCE/TCE Site. A final RI/FS Work Plan was approved by EPA in December 2019. Two phases of RI field sampling have been completed through May 2021 and a Monitoring Well Plan was approved by EPA in November 2021. The Company has recorded a liability of $4.4 million within other current liabilities on its consolidated balance sheet as of December 31, 2021. If necessary, the Company will adjust our remediation liability if the RI/FS scope materially changes or the EPA imposes additional investigative requirements. The Company may be able to recover a portion of costs incurred in connection with the PCE/TCE Site from other potentially responsible parties, though there is no assurance we would receive any funds.

Based on current information, the Company is not aware of any environmental compliance obligations, claims or investigations that will have a material adverse effect on its results of operations, cash flows or financial position except as otherwise disclosed in the Company’s consolidated financial statements. However, there can be no guarantee that previously known or newly discovered matters will not result in material costs or liabilities.

Litigation

The Company believes it has valid defenses to the outstanding claims discussed below and will vigorously defend all such claims; however, litigation is subject to many uncertainties and there cannot be any assurance that the Company will ultimately prevail or, in the event of an unfavorable outcome or settlement of litigation, that the ultimate liability would not be material and would not have a material adverse effect on the business, results of operations, cash flows or financial position of the Company.

In November 2018, Aurora Plastics, LLC (“Aurora”) initiated an arbitration demand against Atrium Windows and Doors, Inc., Atrium Extrusion Systems, Inc., and North Star Manufacturing (London) Ltd. (collectively, “Atrium”) pursuant to a Third Amended and Restated Vinyl Compound and Supply Agreement dated as of December 22, 2016. A settlement was reached in this case during the fourth quarter of 2019. The Company has a $3.9 million liability related to the settlement in other current liabilities on the Company’s consolidated balance sheet as of December 31, 2021.

On November 14, 2018, an individual stockholder, Gary D. Voigt, filed a putative class action Complaint in the Delaware Court of Chancery against Clayton Dubilier & Rice, LLC (“CD&R”), Clayton, Dubilier & Rice Fund VIII, L.P. (“CD&R Fund VIII”), and certain directors of the Company. Voigt purported to assert claims on behalf of himself, on behalf of a class of other similarly situated stockholders of the Company, and derivatively on behalf of the Company, the nominal defendant. An Amended Complaint was filed on April 11, 2019. The Amended Complaint asserted claims for breach of fiduciary duty and unjust enrichment against CD&R Fund VIII and CD&R, and for breach of fiduciary duty against twelve director defendants in connection with the Merger. Defendants moved to dismiss the Amended Complaint and, on February 10, 2020, the court denied the motions except as to four of the director defendants. Voigt sought damages in an amount to be determined at trial. On August 25, 2021, the parties to the case filed a Stipulation of Compromise and Settlement (“Stipulation”) setting forth their agreement to settle the litigation. The Stipulation provides for CD&R, CD&R Fund VIII, and the eight director defendants to cause their respective insurers to pay a total of $100 million into an escrow account that will be used to pay escrow expenses, satisfy any fee and incentive amounts awarded by the court in favor of plaintiff and plaintiff’s counsel, and distribute the remaining funds to the Company. The Stipulation further provided that plaintiff’s counsel would apply for an award of attorneys’ fees and litigation expenses in an amount of up to 23.5% of the $100 million payment by the insurers, and that an incentive award for the named plaintiff will be paid solely from the amount of plaintiff attorneys’ fees awarded. This Stipulation required court approval. On January 19, 2022, the Court held a hearing, verbally approved the Stipulation, and approved the plaintiff’s counsel’s application for a fee award of 23.5% of the $100 million

settlement payment and the incentive award. On January 20, 2022, the Court entered an Order and Final Judgment approving the Stipulation. The Stipulation represents a gain contingency in accordance with ASC 450, Contingencies, that has not been recorded as the matter was not resolved as of December 31, 2021. The proceeds from the Stipulation will be recorded when received.

Other contingencies

The Company’s imports of fabricated structural steel (“FSS”) from its Mexican affiliate, Building Systems de Mexico S.A. de C.V. (“BSM”) were subject to antidumping (“AD”) and countervailing duty (“CVD”) tariff proceedings before the U.S. Department of Commerce (“DOC”) and the U.S. International Trade Commission (“USITC”). The proceedings were initiated in February 2019 by the American Institute of Steel Construction (“AISC”) against FSS being imported into the USA from Mexico, Canada, and China. In 2019, the DOC issued preliminary tariff rates and in 2020 finalized CVD and AD tariff rates of 0% and 8.47%, respectively, for the Company’s imports of FSS from BSM. However, in February 2020, in a 3 to 2 vote, the USITC concluded there was no injury or threat of injury to the domestic FSS industry. In March 2020 the USITC opinion was published in the Federal Register, ceasing the Company’s requirement to pay the AD and CVD tariffs. The Company received full reimbursement for the $4.1 million in tariffs previously deposited with United States Customs and Border Protection and recorded a reduction in costs of sales during the fiscal year ended December 31, 2020. This matter was appealed by the AISC and, on September 22, 2021, the U.S. Court of International Trade (“CIT”) issued an opinion upholding the USITC’s determination that there was no injury or threat of injury to the domestic FSS industry caused by the cumulated imports of FSS from Mexico, Canada, and China. The AISC has appealed the CIT decision to the U.S. Court of Appeals for the Federal Circuit (“CAFC”). The Company will continue to vigorously advocate its position, that its import of FSS from BSM should not be subject to any CVD or AD tariffs, in all tribunals including the CAFC as well as the tribunal established pursuant to the North American Free Trade Agreement (“NAFTA”). The Company’s position is in agreement with, and bolstered by, the USITC’s determination that FSS imports do not cause material injury or threaten material injury to the U.S. industry and the CIT’s sustaining of the USITC’s final negative injury determination. We have evaluated this matter in accordance with ASC 450, Contingencies, and concluded that no liability to the Company is probable and estimable as of December 31, 2021.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Use of Estimates

Use of Estimates. The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, revenues and expenses, and related disclosures of contingent assets and liabilities in the consolidated financial statements and accompanying notes. Estimates are used for, but not limited to, provisions for expected credit losses and inventory reserves, accounting for business combinations, valuation of reporting units for purposes of assessing goodwill for impairment, valuation of asset groups for impairment testing, accruals for employee benefits, general liability insurance, warranties and certain contingencies. We base our estimates on historical experience, market participant fair value considerations, projected future cash flows, and various other factors that are believed to be reasonable under the circumstances. Actual results could differ from those estimates. Given the uncertain economic climate and additional or unforeseen effects from the COVID-19 pandemic, these estimates have become more challenging, and actual results could differ materially from these estimates.

Cash and Cash Equivalents

Cash and Cash Equivalents. Cash equivalents are stated at cost plus accrued interest, which approximates fair value. Cash equivalents are highly liquid debt instruments with an original maturity of three months or less and may consist of time deposits with a number of commercial banks with high credit ratings, money market instruments, certificates of deposit and commercial paper. The Company’s policy allows it to also invest excess funds in no-load, open-end, management investment trusts (“mutual funds”) that invest exclusively in high quality money market instruments. As of December 31, 2021, the Company’s cash and cash equivalents were only invested in cash.

Accounts Receivable and Related Allowance

Accounts Receivable and Related Allowance. The Company reports accounts receivable net of an allowance for expected credit losses. Trade accounts receivable are the result of sales of vinyl windows, aluminum windows, vinyl siding, metal siding, injection molded products, metal building products, metal coating, and other products and services to customers throughout the United States and Canada and affiliated territories, including international builders who resell to end users. Sales are primarily denominated in U.S. dollars. Credit sales do not normally require a pledge of collateral; however, various types of liens may be filed to enhance the collection process and we require payment prior to shipment for certain international shipments.The Company establishes provisions for expected credit losses based on the Company’s assessment of the collectability of amounts owed to us by our customers. Such provisions are included in selling, general and administrative expenses. In establishing these reserves, the Company considers changes in the financial position of a customer, age of the accounts receivable balances, availability of security, unusual macroeconomic conditions, lien rights and bond rights as well as disputes, if any, with our customers. Our allowance for credit losses reflects reserves for customer receivables to reduce receivables to amounts expected to be collected. Interest on delinquent accounts receivable is included in the trade accounts receivable balance and recognized as interest income when earned and collectability is reasonably assured. Uncollectible accounts are written off when a settlement is reached for an amount that is less than the outstanding historical balance, all collection efforts have been exhausted and/or any legal action taken by the Company has concluded.

Inventories

Inventories. Inventories are stated at the lower of cost or net realizable value less allowance for inventory obsolescence using the First-In, First-Out Method (“FIFO”).

Assets and Liabilities Held for Sale and Divestitures

Assets Held for Sale. The Company records assets held for sale at the lower of the carrying value or fair value less costs to sell. The following criteria are used to determine if property is held for sale: (i) management has the authority and commits to a plan to sell the property; (ii) the property is available for immediate sale in its present condition; (iii) there is an active program to locate a buyer and the plan to sell the property has been initiated; (iv) the sale of the property is probable within one year; (v) the property is being actively marketed at a reasonable sale price relative to its current fair value; and (vi) it is unlikely that the plan to sell will be withdrawn or that significant changes to the plan will be made.In determining the fair value of the assets less costs to sell, the Company considers factors including current sales prices for comparable assets in the area, recent market analysis studies, appraisals and any recent legitimate offers. If the estimated fair value less costs to sell of an asset is less than its current carrying value, the asset is written down to its estimated fair value less costs to sell. Our assumptions about property sales prices require significant judgment because the current market is highly sensitive to changes in economic conditions. We determined the estimated fair values of real property assets held for sale based on current market conditions and assumptions made by management, which may differ from actual results and may result in impairments if market conditions deteriorate.

Property, Plant and Equipment

Property, Plant and Equipment. Property, plant and equipment are stated at cost and depreciated using the straight-line method over their estimated useful lives. Leasehold improvements are capitalized and amortized using the straight-line method over the shorter of their estimated useful lives or the term of the underlying lease. Depreciation and amortization are recognized in cost of sales and selling, general and administrative expenses based on the nature and use of the underlying assets.

Internally Developed Software

Internally Developed Software. Internally developed software is stated at cost less accumulated amortization, is included within property, plant and equipment within our consolidated balance sheets, and is depreciated using the straight-line method over its estimated useful life ranging from 3 to 7 years. Software assets are reviewed for impairment when events or circumstances indicate the carrying value may not be recoverable over the remaining lives of the assets. During the software application development stage, capitalized costs include external consulting costs, costs of software licenses and internal payroll and payroll related costs for employees who are directly associated with a software project. Upgrades and enhancements are capitalized if they result in added functionality which enable the software to perform tasks it was previously incapable of performing. Software maintenance, training, data conversion and business process reengineering costs are expensed in the period in which they are incurred.

Goodwill and Other Intangible Assets

Goodwill and Other Intangible Assets. The Company reviews the carrying values of goodwill and identifiable intangibles whenever events or changes in circumstances indicate that such carrying values may not be recoverable and annually for goodwill as required by ASC 350, Intangibles — Goodwill and Other. This guidance provides the option to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value. If, based on a review of qualitative factors, it is more likely than not that the fair value of a reporting unit is less than its carrying value, we perform a quantitative analysis. If the carrying value of a reporting unit exceeds its fair value, we measure any goodwill impairment loss as the amount by which the carrying amount of a reporting unit exceeds its fair value, not to exceed the total amount of goodwill allocated to that reporting unit. Unforeseen events, changes in circumstances, market conditions and material differences in the value of intangible assets due to changes in estimates of future cash flows could negatively affect the fair value of the Company’s assets and result in a non-cash impairment charge. Some factors considered important that could trigger an impairment review include the following: significant underperformance relative to expected historical or projected future operating results, significant changes in the manner of the Company’s use of acquired assets or the strategy for its overall business and significant negative industry or economic trends.

Leases

Leases. The Company has leases for certain office, manufacturing, warehouse and distribution locations, and vehicles and equipment, including fleet vehicles. Many of these leases have options to terminate prior to or extend beyond the end of the term. The exercise of the majority of lease renewal options is at the Company’s sole discretion. Some lease agreements have variable payments, the majority of which are real estate agreements in which future increases in rent are based on an index. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants. The Company accounts for lease and non-lease components as a single lease component for all leases other than leases of durable tooling. The Company has elected to exclude leases with an initial term of 12 months or less from the consolidated balance sheets and recognizes related lease payments in the consolidated statements of operations on a straight-line basis over the lease term.

Operating lease liabilities are recognized based on the present value of the future minimum lease payments over the reasonably expected holding period at the commencement date of the leases. Few of the Company’s lease contracts provide a readily determinable implicit rate. As such, an estimated incremental borrowing rate (“IBR”) is utilized, based on information available at the inception of the lease. The incremental borrowing rate represents an estimate of the interest rate we would incur at lease commencement to borrow an amount equal to the lease payments on a collateralized basis over the term of the lease.

Accounting for leases requires judgment, including determining whether a contract contains a lease, the incremental borrowing rates to utilize for leases without a stated implicit rate, the reasonably certain holding period for a leased asset, and the allocation of consideration to lease and non-lease components. The allocation of the lease and non-lease components for durable tooling is based on the Company’s best estimate of standalone price.

Revenue Recognition

Revenue Recognition. The Company enters into contracts that pertain to products, which are accounted for as separate performance obligations and are typically one year or less in duration. Given the nature of the Company's sales arrangements, we are not required to exercise significant judgment in determining the timing for the satisfaction of performance obligations or the transaction price. Revenue is measured as the amount of consideration expected to be received in exchange for our products. Revenue is generally recognized when the product has shipped from the Company’s facility and control has transferred to the customer. For certain products, it is industry practice that customers take title to products upon delivery, at which time revenue is then recognized by the Company. For a portion of the Company's business, when the Company processes customer owned material, control is deemed to transfer to the customer as the processing is being completed. Allowances for cash discounts, volume rebates and other customer incentive programs, as well as gross customer returns, among others, are recorded as a reduction of sales at the time of sale based upon the estimated future outcome. Cash discounts, volume rebates and other customer incentive programs are based upon certain percentages agreed upon with the Company’s various customers, which are typically earned by the customer over an annual period.

The Company’s revenues are adjusted for variable consideration, which includes customer volume rebates and prompt payment discounts. The Company measures variable consideration by estimating expected outcomes using analysis and inputs based upon anticipated performance, historical data, and current and forecasted information. Customer returns are recorded as a reduction to sales on an actual basis throughout the year and also include an estimate at the end of each reporting period for future customer returns related to sales recorded prior to the end of the period. The Company generally estimates customer returns based upon the time lag that historically occurs between the sale date and the return date, while also factoring in any new business conditions that might impact the historical analysis such as new product introduction. Measurement of variable consideration is reviewed by management periodically and revenue is adjusted accordingly. The Company does not have significant financing components. The Company recognizes installation revenue, primarily within the stone veneer business, over the period for which the stone is installed, which is typically a very short duration.

Shipping and handling activities performed by the Company are considered activities to fulfill the sales of our products. Amounts billed for shipping and handling are included in net sales, while costs incurred for shipping and handling are included in cost of sales.

In accordance with certain contractual arrangements, the Company receives payment from our customers in advance related to performance obligations that are to be satisfied in the future and recognizes such payments as deferred revenue, primarily related to the Company’s weathertightness warranties (see Warranty accounting policies below).

A portion of the Company’s revenue, exclusively within the Commercial segment, includes multiple-element revenue arrangements due to multiple deliverables. Each deliverable is generally determined based on customer-specific manufacturing and delivery requirements. Because the separate deliverables have value to the customer on a stand-alone basis, they are typically considered separate units of accounting. A portion of the entire job order value is allocated to each unit of accounting. Revenue allocated to each deliverable is recognized upon shipment. The Company uses estimated selling price (“ESP”) based on underlying cost plus a reasonable margin to determine how to separate multiple-element revenue arrangements into separate units of accounting, and how to allocate the arrangement consideration among those separate units of accounting. The Company determines ESP based on normal pricing and discounting practices.

Equity Raising and Deferred Financing Costs

Deferred Financing Costs. Deferred financing costs generally comprising facility, agency, and certain legal fees associated with issuing new debt and debt restructuring, are amortized over the contractual term of the related agreement using the effective interest method.

Cost of Sales

Cost of Sales. Cost of sales includes the cost of inventory sold during the period, including costs for manufacturing, inbound freight, receiving, inspection, warehousing, and internal transfers less vendor rebates. Costs associated with shipping and handling the Company’s products are also included in cost of sales. Purchasing costs and engineering and drafting costs are included in selling, general and administrative expense.

Warranty

Warranty. The Company offers a number of warranties associated with the products it sells. The specific terms and conditions of these warranties vary depending on the product sold. The Company’s warranty liabilities are undiscounted and adjusted for inflation based on third party actuarial estimates. Factors that affect the Company’s warranty liabilities include the number of units sold, historical and anticipated rates of warranty claims, cost per claim and new product introduction. Warranties are normally limited to replacement or service of defective components for the original customer. Some warranties are transferable to subsequent owners and are generally limited to ten years from the date of manufacture or require pro-rata payments from the customer. A provision for estimated warranty costs is recorded based on historical experience and the Company periodically adjusts these provisions to reflect actual experience. Warranty costs are included within cost of goods sold. The Company assesses the adequacy of the recorded warranty claims and adjusts the amounts as necessary. Separately, upon the sale of a weathertightness warranty in the Commercial segment, the Company records the resulting revenue as deferred revenue, which is included in other accrued expenses and other long-term liabilities on the consolidated balance sheets depending on when the revenues are expected to be recognized.

Insurance

Insurance. Group medical insurance is purchased through Blue Cross Blue Shield (“BCBS”). The plans include a Preferred Provider Organization Plan (“PPO”) and a Consumer Driven Health Plan (“CDHP”). These plans are managed-care plans utilizing networks to achieve discounts through negotiated rates with the providers within these networks. The claims incurred under these plans are self-funded for the first $500,000. The Company purchases individual stop loss reinsurance to limit the claims liability to $500,000 per covered individual per year. BCBS administers all claims, including claims processing, utilization review and network access charges.

Insurance is purchased for workers compensation and employer liability, general liability, property and auto liability. The Company utilizes either deductibles or self-insurance retentions (“SIR”) to limit the exposure to catastrophic loss. The workers compensation insurance has a $1,000,000 per-occurrence deductible. The property and auto liability insurances have per-occurrence deductibles of $500,000 each. The general liability insurance has a $1,000,000 SIR. Umbrella insurance coverage is purchased to protect us against claims that exceed the Company’s per-occurrence or aggregate limits set forth in the Company’s respective policies. All claims are adjusted utilizing a third-party claims administrator and insurance carrier claims adjusters.

Each reporting period, the Company records the costs of its health insurance plan, including paid claims, an estimate of the change in incurred but not reported (“IBNR”) claims, and administrative fees, when applicable, (collectively the “Plan Costs”) as general and administrative expenses on the consolidated statements of operations. The estimated IBNR claims are based upon (i) the level of paid claims under the plan over the prior 36 months, (ii) an estimated lag factor and (iii) an estimate of incurred and reported but not yet paid claims. The Company uses an actuary to determine the claims lag and estimated liability for IBNR claims.

For workers’ compensation costs, the Company monitors the number of accidents and the severity of such accidents to develop appropriate estimates for expected costs to provide both medical care and indemnity benefits, when applicable, for the period of time that an employee is incapacitated and unable to work. These accruals are developed using independent third-party actuarial estimates of the expected cost for similar disabilities. For general liability and automobile claims, accruals are developed based on independent third-party actuarial estimates of the expected cost to resolve each claim, including damages and defense costs, based on legal and industry trends and the nature and severity of the claim. Accruals also include estimates for IBNR claims, and taxes and administrative fees, when applicable. Each reporting period, the Company records the costs of our workers’ compensation, general liability and automobile claims, including paid claims, an estimate of the change in IBNR claims, taxes and administrative fees as general and administrative expenses on the consolidated statements of operations.

Advertising Costs

Advertising Costs. Advertising costs are expensed as incurred.

Impairment of Long-Lived Assets

Impairment of Long-Lived Assets. The Company assesses impairment of property, plant and equipment at an asset group level in accordance with the provisions of ASC 360, Property, Plant and Equipment. The Company assesses the recoverability of the carrying amount of property, plant and equipment if certain events or changes in circumstances indicate that the carrying value of such asset groups may not be recoverable, such as a significant decrease in market value of the asset groups or a significant change in our business conditions. If it is determined that the carrying value of an asset group is not recoverable based on expected undiscounted future cash flows, excluding interest charges, an impairment loss equal to the excess of the carrying amount of the asset group over its fair value is recorded. The fair value of an asset group is determined based on prices of similar assets adjusted for their remaining useful life.

Share-Based Compensation

Share-Based Compensation. Compensation expense is recorded for restricted stock awards under the fair value method. Compensation expense for performance stock units (“PSUs”) is recorded based on the probable outcome of the performance conditions associated with the respective shares, as determined by management.

Foreign Currency Re-measurement and Translation

Foreign Currency Remeasurement and Translation. The functional currency for the Company’s Canadian operations is the Canadian dollar. Translation adjustments resulting from translating the functional currency financial

statements into U.S. dollar equivalents are reported separately in accumulated other comprehensive income (loss) in stockholders’ equity. The net foreign currency gains (losses) included in net income (loss) for fiscal 2021, 2020 and 2019 were $(3.1) million, $1.1 million and $1.2 million, respectively. Net foreign currency translation adjustments, net of tax, and included in other comprehensive income (loss) were $6.6 million, $17.3 million and $3.2 million for the fiscal 2021, 2020 and 2019, respectively.

The functional currency for the Company’s Mexico operations is the U.S. dollar. Adjustments resulting from the remeasurement of the local currency financial statements into the U.S. dollar functional currency, which uses a combination of current and historical exchange rates, are included in net income (loss) in the current period. Net foreign currency remeasurement gains (losses) were $(0.6) million, $0.2 million and $0.9 million for fiscal 2021, 2020 and 2019, respectively.

Contingencies

Contingencies. The Company establishes reserves for estimated loss contingencies and unasserted claims when it believes a loss is probable and the amount of the loss can be reasonably estimated. The Company’s contingent liability reserves are related primarily to litigation and environmental matters. Revisions to contingent liability reserves are reflected in income in the period in which there are changes in facts and circumstances that affect our previous assumptions with respect to the likelihood or amount of loss. Reserves for contingent liabilities are based upon assumptions and estimates regarding the probable outcome of the matter. The Company estimates the probability by evaluating historical precedent as well as the specific facts relating to each particular contingency (including the opinion of outside advisors, professionals and experts). Should the outcome differ from the assumptions and estimates or other events result in a material adjustment to the accrued estimated reserves, revisions to the estimated reserves for contingent liabilities would be required and would be recognized in the period the new information becomes known.

Income taxes

Income taxes. The determination of the Company’s provision for income taxes requires significant judgment, the use of estimates and the interpretation and application of complex tax laws. The amounts recorded in our consolidated financial statements reflect estimates of final amounts due to timing of completion and filing of actual income tax returns. Estimates are required with respect to, among other things, the appropriate state income tax rates used in the various states in which we and our subsidiaries are required to file, the potential utilization of operating and capital loss carry-forwards for federal, state, and foreign income tax purposes and valuation allowances required, if any, for tax assets that may not be realized in the future. The Company establishes reserves when, despite our belief that our tax return positions are fully supportable, certain positions could be challenged, and the positions may not be fully sustained. The Company’s provision for income taxes reflects a combination of income earned and taxed in the various U.S. federal and state, Canadian federal and provincial, Mexican federal and other jurisdictions. Jurisdictional tax law changes, increases or decreases in permanent differences between book and tax items, accruals or adjustments of accruals for tax contingencies or valuation allowances, and the change in the mix of earnings from these taxing jurisdictions all affect the overall effective tax rate.In assessing the realizability of deferred tax assets, the Company considers whether it is more likely than not that some portion, or all, of the deferred tax assets will not be realized. The Company considers all available evidence, both positive and negative, in determining whether a valuation allowance is required. Such evidence includes the scheduled reversal of deferred tax liabilities, projected future taxable income and tax planning strategies in making this assessment, and judgment is required in considering the relative weight of negative and positive evidence.

Acquisitions

Acquisitions. The Company records acquisitions resulting in the consolidation of a business using the acquisition method of accounting. Under this method, we record the assets acquired, including intangible assets that can be identified and named, and liabilities assumed based on their estimated fair values at the date of acquisition. Various fair value assumptions are used in the determination of these estimated fair values, including items such as sales growth rates, cost synergies, discount rates and other prospective financial information. The purchase price in excess of the fair value of the assets acquired and liabilities assumed is recorded as goodwill. We believe these estimates are based upon reasonable assumptions; however, they are inherently uncertain and unpredictable, and actual results may differ. Estimates associated with the accounting for acquisitions may change during the measurement period, which may be up to one year from the acquisition date. As a result, material adjustments during the measurement period are reflected in the comparative consolidated financial statements in the period in which the adjustment amount is determined. Upon the conclusion of the measurement period or final determination of the values of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded in our consolidated statements of operations. Newly acquired entities are included in our results from the date of their respective acquisitions. See Note 4 — Acquisitions.

Adopted Accounting Pronouncements and Recent Accounting Pronouncements

Adopted Accounting Pronouncements

In December 2019, the Financial Accounting Standards Board ("FASB") issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which simplifies the accounting for income taxes by removing certain exceptions to the general principles in Topic 740 and also improves consistent application of and simplifies U.S. GAAP for

other areas of Topic 740 by clarifying and amending existing guidance. Effective January 1, 2021, the Company adopted this guidance. The application of ASU 2019-12 did not have a material effect on the consolidated financial statements.

Recent Accounting Pronouncements

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides optional guidance to ease the potential burden in accounting for reference rate reform on financial reporting. In January 2021, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848): Scope, which clarifies that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivatives that are affected by the reference rate transition. The amendments in these ASUs are elective, apply to all entities that have contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of rate reform, and may be adopted as of March 12, 2020 through December 31, 2022. The Company is evaluating the impact of electing to apply the amendments.

In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, which requires the recognition and measurement of contract assets and contract liabilities acquired in a business combination in accordance with ASC 606, Revenue from Contracts with Customers. This creates an exception to the general recognition and measurement principles in ASC 805. The Company will be required to adopt this guidance in the annual and interim periods for the fiscal year ending December 31, 2023, with early adoption permitted. The amendments in this ASU should be applied prospectively to business combinations occurring on or after the effective date of the amendments. The Company does not anticipate that the adoption of this guidance will have a material impact on the consolidated financial statements.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Schedule of Cash and Cash Equivalents

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the consolidated balance sheets that total the amounts shown in the consolidated statements of cash flows (in thousands):

	December 31, 2021		December 31, 2020
Cash and cash equivalents	$	394,447	$	674,255
Restricted cash(1)	2,211		6,223
Total cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows	$	396,658	$	680,478

(1)Restricted cash primarily relates to escrow balances held for an outstanding earn-out agreement as of December 31, 2020 and working capital and other indemnification agreements in both periods presented.

Schedule of Restricted Cash and Cash Equivalents

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the consolidated balance sheets that total the amounts shown in the consolidated statements of cash flows (in thousands):

	December 31, 2021		December 31, 2020
Cash and cash equivalents	$	394,447	$	674,255
Restricted cash(1)	2,211		6,223
Total cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows	$	396,658	$	680,478

(1)Restricted cash primarily relates to escrow balances held for an outstanding earn-out agreement as of December 31, 2020 and working capital and other indemnification agreements in both periods presented.

Rollforward of Uncollectible Accounts

The following table represents the rollforward of the allowance for credit losses for the periods indicated (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Ending balance, prior period	$	13,313	$	9,962	$	10,270
Cumulative effect of accounting change(1)	—		678		—
Provision for expected credit losses	3,604		5,390		2,035
Amounts charged against allowance for credit losses, net of recoveries	(1,729)		(3,579)		(2,807)
Allowance for credit losses of acquired company at date of acquisition	269		862		464
Divestitures	(4,158)		—		—
Ending balance	$	11,299	$	13,313	$	9,962

(1)Cumulative effect of accounting change reflects the modified retrospective effect of adopting Accounting Standards Update (“ASU”) 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments

Schedule of Inventory Components

The components of inventory are as follows (in thousands):

	December 31, 2021		December 31, 2020
Raw materials	$	485,642	$	241,353
Work in process and finished goods	263,090		190,584
	$	748,732	$	431,937

Rollforward of Reserve For Obsolete Materials and Supplies

The following table represents the rollforward of reserve for obsolete materials and supplies activity for the periods indicated (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Beginning balance	$	22,172	$	18,712	$	19,227
Provisions	5,155		8,015		3,207
Dispositions	(6,029)		(4,555)		(4,082)
Reserve of acquired company at date of acquisition	705		—		360
Divestitures	(722)		—		—
Ending balance	$	21,281	$	22,172	$	18,712

Schedule of Property, Plant and Equipment

Property, plant and equipment consists of the following (in thousands):

	December 31, 2021		December 31, 2020
Land	$	24,812	$	26,933
Buildings and improvements	253,637		279,113
Machinery and equipment	990,338		970,083
	1,268,787		1,276,129
Less: accumulated depreciation	(656,492)		(644,308)
Total property, plant and equipment, net	$	612,295	$	631,821

Schedule of Estimated Useful Lives for Depreciation

Estimated useful lives for depreciation are:

Buildings and improvements	15	–	39 years
Machinery and equipment	3	–	15 years

Schedule of Disaggregation of Revenue

The following table presents disaggregated revenue disclosure details of net sales by segment (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Windows Net Sales Disaggregation:
Vinyl windows	$	2,190,887	$	1,763,565	$	1,838,796
Aluminum windows	85,735		74,672		53,622
Other	45,655		51,388		38,029
Total	$	2,322,277	$	1,889,625	$	1,930,447
Siding Net Sales Disaggregation:
Vinyl siding	$	667,284	$	523,724	$	525,005
Metal	293,427		255,267		263,018
Injection molded	75,361		66,672		66,578
Stone	87,948		86,457		92,228
Other products & services(1)	240,060		209,826		164,578
Total	$	1,364,080	$	1,141,946	$	1,111,407
Commercial Net Sales Disaggregation:
Metal building products(2)	$	1,473,662	$	1,107,733	$	1,249,757
Insulated metal panels(3)	208,220		348,640		441,441
Metal coil coating	214,898		129,425		156,695
Total	$	1,896,780	$	1,585,798	$	1,847,893
Total Net Sales:	$	5,583,137	$	4,617,369	$	4,889,747

(1)Other products & services primarily consist of installation of stone veneer products.

(2)The Company’s roll-up sheet doors (“DBCI”) business is only included in the results of operations through August 17, 2021 as a result of divestiture. See Note 5 — Divestitures for more information. The net sales of UCC, which was acquired on December 3, 2021, are included from the date of acquisition. See Note 4 — Acquisitions for more information.

(3)The Company’s insulated metal panels (“IMP”) business is only included in the results of operations through August 8, 2021 as a result of divestiture. See Note 5 — Divestitures for more information.

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ACQUISITIONS (Tables)

12 Months Ended

Dec. 31, 2021

Business Combination and Asset Acquisition [Abstract]

Schedule of Estimated Fair Value of Assets Acquired and Recorded

The Company preliminarily determined the fair value of the tangible and intangible assets and the liabilities acquired, and recorded goodwill based on the excess of the fair value of the acquisition consideration over such fair values, as follows (in thousands):

Assets acquired:
Cash	$	19,594
Accounts receivable	20,821
Other receivables	16
Inventories	68,727
Prepaid expenses and other current assets	1,356
Property, plant and equipment	24,184
Lease right of use assets	37,964
Goodwill	140,342
Other assets	94
Total assets acquired	313,098
Liabilities assumed:
Accounts payable	32,732
Accrued expenses	22,427
Deferred income taxes	1,289
Current portion of lease liability	3,859
Other current liabilities	1,852
Non-current portion of lease liabilities	34,105
Total liabilities assumed	96,264
Net assets acquired	$	216,834

The Company preliminarily determined the fair value of the tangible and intangible assets and the liabilities acquired, and recorded goodwill based on the excess of the fair value of the acquisition consideration over such fair values, as follows (in thousands):

Assets acquired:
Cash	$	2,838
Accounts receivable	17,398
Other receivables	409
Inventories	16,278
Prepaid expenses and other current assets	1,538
Property, plant and equipment	18,300
Lease right of use assets	21,849
Intangible assets (trade names/customer relationships)	137,660
Goodwill	110,816
Other assets	500
Total assets acquired	327,586
Liabilities assumed:
Accounts payable	17,680
Accrued expenses	7,488
Deferred income taxes	33,221
Current portion of lease liability	247
Other current liabilities	2,349
Non-current portion of lease liabilities	19,926
Other long-term liabilities	7,211
Total liabilities assumed	88,122
Net assets acquired	$	239,464

The Company preliminarily determined the fair value of the tangible and intangible assets and the liabilities acquired, and recorded goodwill based on the excess of the fair value of the acquisition consideration over such fair values, as follows (in thousands):

Assets acquired:
Cash	$	997
Accounts receivable	5,500
Inventories	4,446
Prepaid expenses and other current assets	823
Property, plant and equipment	2,500
Lease right of use assets	2,787
Intangible assets (trade names/customer relationships)	51,600
Goodwill	33,148
Other assets	50
Total assets acquired	101,851
Liabilities assumed:
Accounts payable	1,676
Other accrued expenses	1,679
Lease liabilities	2,637
Other long-term liabilities	829
Total liabilities assumed	6,821
Net assets acquired	$	95,030

The Company determined the fair value of the tangible and intangible assets and the liabilities acquired, and recorded goodwill based on the excess of the fair value of the acquisition consideration over such fair values, as follows (in thousands):

Assets acquired:
Cash	$	143
Accounts receivable	7,135
Inventories	670
Prepaid expenses and other current assets	277
Property, plant and equipment	1,042
Lease right of use assets	445
Intangible assets (trade names/customer relationships)	22,350
Goodwill	12,539
Total assets acquired	44,601
Liabilities assumed:
Accounts payable	1,149
Other accrued expenses	1,020
Lease liabilities	339
Other long-term liabilities	109
Total liabilities assumed	2,617
Net assets acquired	$	41,984

The Company determined the fair value of the tangible and intangible assets and the liabilities acquired, and recorded goodwill based on the excess of fair value of the acquisition consideration over such fair values, as follows (in thousands):

Assets acquired:
Restricted cash	$	3,379
Accounts receivable	16,825
Inventories	13,062
Prepaid expenses and other current assets	3,677
Property, plant and equipment	14,295
Lease right-of-use assets	11,372
Intangible assets (trade names/customer relationships)	91,170
Goodwill	63,543
Deferred taxes	474
Other assets	157
Total assets acquired	217,954
Liabilities assumed:
Accounts payable	5,910
Other accrued expenses	14,666
Lease liabilities	11,365
Other long-term liabilities	3,450
Total liabilities assumed	35,391
Net assets acquired	$	182,563

Business Acquisition, Pro Forma Information

The following table provides unaudited supplemental pro forma results for the Company for the years ended December 31, 2021, 2020 and 2019 as if the UCC, Cascade Windows, Prime Windows, Kleary and Environmental Stoneworks acquisitions had occurred on January 1, 2019 (in thousands except for per share data):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Net sales	$	5,977,230	$	5,056,390	$	5,387,135
Net income (loss) applicable to common shares	663,273		(480,289)		26,688
Net income (loss) per common share:
Basic	$	5.26	$	(3.83)	$	0.21
Diluted	$	5.23	$	(3.83)	$	0.21

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RESTRUCTURING AND IMPAIRMENT (Tables)

12 Months Ended

Dec. 31, 2021

Restructuring and Related Activities [Abstract]

Summary of Restructuring Plan Costs and Charges

The following table summarizes the costs related to those restructuring initiatives and programs for periods indicated (in thousands):

	Year Ended		Cost Incurred To Date (since inception)
	December 31, 2021
Severance	$	3,696	$	39,927
Asset impairments	22,210		30,078
Gain on sale of facilities, net	—		(1,298)
Other restructuring costs	341		9,877
Total restructuring costs	$	26,247	$	78,584

Summary of Restructuring Liability and Cash Payment

The following table summarizes our severance liability, included within other accrued expenses on the consolidated balance sheets, and cash payments made pursuant to the restructuring plans from inception through December 31, 2021 (in thousands):

	Windows		Siding		Commercial		Corporate		Total
Balance, December 31, 2018	$	—	$	85	$	—	$	2,333	$	2,418
Costs incurred	1,094		1,834		2,721		4,009		9,658
Cash payments	(676)		(1,437)		(2,721)		(4,579)		(9,413)
Balance, December 31, 2019	$	418	$	482	$	—	$	1,763	$	2,663
Costs incurred	4,294		2,705		16,561		3,013		26,573
Cash payments	(4,406)		(2,352)		(14,570)		(4,346)		(25,674)
Balance, December 31, 2020	$	306	$	835	$	1,991	$	430	$	3,562
Costs incurred	971		264		2,004		457		3,696
Cash payments	(1,262)		(904)		(2,473)		(587)		(5,226)
Balance, December 31, 2021	$	15	$	195	$	1,522	$	300	$	2,032

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GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Carrying Amount of Goodwill By Operating Segment

The Company’s goodwill balance and changes in the carrying amount of goodwill by segment follows (in thousands):

	Windows		Siding		Commercial		Total
Balance, December 31, 2019	$	714,023	$	807,280	$	148,291	$	1,669,594
Goodwill recognized from acquisition	—		12,539		—		12,539
Impairment	(320,990)		(176,774)		(5,407)		(503,171)
Currency translation	3,991		10,000		—		13,991
Purchase accounting adjustments from prior year acquisitions	—		1,776		—		1,776
Balance, December 31, 2020	$	397,024	$	654,821	$	142,884	$	1,194,729
Goodwill recognized from acquisitions	143,964		122		140,342		284,428
Divestiture	—		—		(121,464)		(121,464)
Currency translation	208		155		—		363
Balance, December 31, 2021	$	541,196	$	655,098	$	161,762	$	1,358,056

Schedule of Finite-Lived Intangible Activity

The table that follows presents the major components of intangible assets as of December 31, 2021 and 2020 (in thousands). Intangible assets that are fully amortized are removed from the disclosures.

	Range of Life (Years)			Weighted Average Amortization Period (Years)	Cost		Accumulated Amortization		Net Carrying Value
As of December 31, 2021
Amortized intangible assets:
Trademarks/Trade names/other	3	–	15	7	$	241,727	$	(76,574)	$	165,153
Customer lists and relationships	7	–	20	9	1,845,511		(486,029)		1,359,482
Total intangible assets				8	$	2,087,238	$	(562,603)	$	1,524,635
	Range of Life (Years)			Weighted Average Amortization Period (Years)	Cost		Accumulated Amortization		Net Carrying Value
As of December 31, 2020
Amortized intangible assets:
Trademarks/Trade names	5	–	15	8	$	248,155	$	(51,722)	$	196,433
Customer lists and relationships	7	–	20	9	1,758,611		(370,440)		1,388,171
Total intangible assets				9	$	2,006,766	$	(422,162)	$	1,584,604

Schedule of Amortization Expense Over Next Five Fiscal Years

The Company expects to recognize amortization expense over the next five fiscal years as follows (in thousands):

2022	$	196,157
2023	196,144
2024	195,487
2025	195,304
2026	195,120

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LEASES (Tables)

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Lease, Cost

Weighted average information about the Company’s lease portfolio as of December 31, 2021 was as follows:

Weighted-average remaining lease term	6.9 years
Weighted-average IBR	5.74	%

Operating lease costs were as follows (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020
Operating lease costs
Fixed lease costs	$	107,938	$	113,760
Variable lease costs(1)	102,646		70,795
(1) Includes short-term lease costs, which are immaterial.

Schedule of Cash Flow, Supplemental Disclosures

Cash and non-cash activities were as follows (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	91,024	$	99,076
Right-of-use assets obtained in exchange for new operating lease liabilities	$	88,826	$	19,785

Lessee, Operating Lease, Liability, Maturity

Future minimum lease payments under non-cancelable leases as of December 31, 2021 were as follows (in thousands):

	Operating Leases
2022	$	89,202
2023	65,893
2024	52,382
2025	43,976
2026	36,016
Thereafter	108,542
Total future minimum lease payments	396,011
Less: interest	71,800
Present value of future minimum lease payments	$	324,211
As of December 31, 2021
Current portion of lease liabilities	$	73,150
Long-term portion of lease liabilities	251,061
Total	$	324,211

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SHARE-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2021

Share-based Payment Arrangement [Abstract]

Schedule of Weighted Average Assumptions for Equity Awards Granted

The assumptions for the option awards granted in fiscal 2021, 2020 and 2019 were as follows:

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Volatility rate	49.03	%	47.52	%	39.87	%
Expected term (in years)	6.00		6.00		6.50
Risk-free interest rate	1.02	%	0.48	%	1.73	%

Summary of Stock Option Transactions

The following is a summary of stock option transactions during fiscal 2021, 2020 and 2019 (in thousands, except weighted average exercise prices and weighted average remaining life):

	Number of Shares	Weighted Average Exercise Price		Weighted Average Remaining Life	Aggregate Intrinsic Value
Balance, December 31, 2018	3,297	12.08
Granted	360	4.67
Forfeited	(713)	12.16
Cancelled	(96)	9.17
Balance, December 31, 2019	2,848	11.22
Granted	1,121	4.86
Forfeited	(539)	11.26
Cancelled	(215)	11.85
Balance, December 31, 2020	3,215	8.95
Granted	815	15.01
Exercised	(301)	10.85
Forfeited	(647)	9.17
Cancelled	(37)	10.37
Balance, December 31, 2021	3,045	$	10.28	7.8	$	21,817
Exercisable at December 31, 2021	1,235	$	9.23	7.0	$	10,136

Additional Information Concerning Outstanding Options

The following summarizes additional information concerning outstanding options at December 31, 2021 (in thousands, except weighted average remaining life and weighted average exercise prices):

Options Outstanding
Number of Options	Weighted Average Remaining Life	Weighted Average Exercise Price
1,119	8.0 years	$	4.91
1,926	7.8 years	13.40
3,045	7.8 years	$	10.28

The following summarizes additional information concerning options exercisable at December 31, 2021 (in thousands, except weighted average exercise prices):

Options Exercisable
Number of Options	Weighted Average Remaining Life	Weighted Average Exercise Price
507	7.8 years	$	4.83
728	6.5 years	12.30
1,235	7.0 years	$	9.23

Restricted Stock and Performance Award Transactions

Restricted stock and performance award transactions during fiscal 2021, 2020 and 2019 were as follows (in thousands, except weighted average grant prices):

	Restricted Stock and Performance Awards
	Time-Based			Performance-Based
	Number of Shares	Weighted Average Grant Price		Number of Shares(1)	Weighted Average Grant Price
Balance, December 31, 2018	2,245	$	12.57	1,037	$	14.63
Granted	703	5.40		76	4.67
Vested	(586)	12.42		(234)	16.30
Forfeited	(543)	11.00		(168)	13.09
Balance, December 31, 2019	1,819	$	10.32	711	$	13.38
Granted	1,399	5.04		1,068	5.25
Vested	(422)	11.77		(192)	19.65
Forfeited	(442)	9.76		(212)	8.49
Balance, December 31, 2020	2,354	$	7.02	1,375	$	6.93
Granted	1,248	14.97		1,525	24.48
Vested	(1,099)	6.23		(763)	10.67
Forfeited	(511)	9.64		(698)	11.38
Balance, December 31, 2021	1,992	$	11.76	1,439	$	17.73

(1)The number of restricted stock shown reflects the shares that would be granted if the target level of performance is achieved. The number of shares actually issued may vary.

Schedule of Employee Service Share-Based Compensation, Allocation of Recognized Period Costs

Unrecognized share-based compensation expense and weighted average period over which expense attributable to unvested awards will be recognized are as follows (in millions, except weighted average remaining years):

	Year Ended December 31, 2021
	Unrecognized Share-Based Compensation Expense		Weighted Average Remaining Years
Stock options	$	7.8	2.1
Time-based restricted stock	16.8		2.1
Performance-based restricted stock	19.7		1.6
Total unrecognized share-based compensation expense	$	44.3

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EARNINGS PER COMMON SHARE (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Reconciliation of Numerator and Denominator Used for Earnings Per Common Share

The reconciliation of the numerator and denominator used for the computation of basic and diluted income per common share is as follows (in thousands, except per share data):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Numerator for Basic and Diluted Earnings Per Common Share:
Net income (loss) applicable to common shares	$	658,044	$	(482,778)	$	(15,390)
Denominator for Basic and Diluted Earnings Per Common Share:
Weighted average basic number of common shares outstanding	126,058		125,562		125,576
Common stock equivalents:
Employee stock options	737		—		—
Weighted average diluted number of common shares outstanding	126,795		125,562		125,576
Basic earnings (loss) per common share	$	5.22	$	(3.84)	$	(0.12)
Diluted earnings (loss) per common share	$	5.19	$	(3.84)	$	(0.12)
Incentive Plan securities excluded from dilution(1)	275		2,559		4,480

(1)Represents securities not included in the computation of diluted earnings per common share because their effect would have been anti-dilutive.

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OTHER ACCRUED EXPENSES (Tables)

12 Months Ended

Dec. 31, 2021

Payables and Accruals [Abstract]

Other Accrued Expenses

Other accrued expenses are comprised of the following (in thousands):

	December 31, 2021		December 31, 2020
Sales and marketing	$	99,845	$	69,236
Accrued warranty obligation and deferred warranty revenue	30,181		26,094
Other accrued expenses	190,363		152,563
Total other accrued expenses	$	320,389	$	247,893

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WARRANTY (Tables)

12 Months Ended

Dec. 31, 2021

Product Warranties Disclosures [Abstract]

Rollforward of Accrued Warranty Obligation and Deferred Warranty Revenue

The following table represents the rollforward of our accrued warranty obligation and deferred warranty revenue activity for the years ended December 31, 2021 and 2020 (in thousands):

	December 31, 2021		December 31, 2020
Beginning balance	$	216,230	$	216,173
Acquisitions	10,518		109
Warranties sold	1,986		2,677
Revenue recognized	(2,650)		(2,746)
Expense	26,129		28,566
Settlements	(31,612)		(28,549)
Divestiture	(2,245)		—
Ending balance	218,356		216,230
Less: current portion	30,181		26,094
Total warranty, less current portion	$	188,175	$	190,136

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LONG-TERM DEBT (Tables)

12 Months Ended

Dec. 31, 2021

Debt Disclosure [Abstract]

Schedule of Debt

Debt is comprised of the following (in thousands):

	December 31, 2021		December 31, 2020
Term loan facility due April 2028	$	2,580,500	$	2,497,967
8.00% senior notes due April 2026	—		645,000
6.125% senior notes due January 2029	500,000		500,000
Less: unamortized discounts and unamortized deferred financing costs(1)	(43,657)		(53,938)
Total long-term debt, net of unamortized discounts and unamortized deferred financing costs	3,036,843		3,589,029
Less: current portion of long-term debt	26,000		25,600
Total long-term debt, less current portion	$	3,010,843	$	3,563,429

(1)Includes the unamortized discounts and unamortized deferred financing costs associated with the term loan facility, the 8.00% senior notes due April 2026 (included in the December 31, 2020 balance only as the notes were redeemed in full in April 2021), and the 6.125% senior notes due January 2029. The unamortized deferred financing costs associated with the asset-based and revolving credit facilities of $1.3 million and $1.7 million as of December 31, 2021 and 2020, respectively, are classified in other assets on the consolidated balance sheets.

Schedule of Debt Maturity

The scheduled maturity of our debt is as follows (in thousands):

2022	$	26,000
2023	26,000
2024	26,000
2025	26,000
2026 and thereafter	2,976,500
	$	3,080,500

Schedule of Long-term Debt Instruments

At December 31, 2021, the interest rates on the Current Term Loan Facility were as follows:

	December 31, 2021
Interest rate	3.75	%
Effective interest rate	4.02	%

As of December 31, 2021, the Company had the following in relation to the Current ABL Facility (in thousands):

	December 31, 2021
Excess availability	$	565,576
Revolving loans outstanding	0
Letters of credit outstanding	40,257

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DERIVATIVES (Tables)

12 Months Ended

Dec. 31, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Interest Rate Derivatives

The key terms of interest rate swaps are as follows (amounts in thousands):

			December 31, 2021			December 31, 2020
Effective Date	Fixed Rate Paid (Received)		Notional Amount		Status	Notional Amount		Status	Maturity Date
Entered into May 2019:
July 12, 2019	2.1570	%	$	—	Terminated	$	500,000	Active	July 12, 2023
July 12, 2019	2.1560	%	—		Terminated	500,000		Active	July 12, 2023
July 12, 2019	2.1680	%	500,000		Active	500,000		Active	July 12, 2023
Entered into April 2021:
April 15, 2021	2.0369	%	750,000		Active				April 15, 2026
April 15, 2021	2.0340	%	750,000		Active				April 15, 2026
April 15, 2021	(2.1680)	%	(250,000)		Active				July 12, 2023
April 15, 2021	(2.1680)	%	(250,000)		Active				July 12, 2023
			$	1,500,000		$	1,500,000

The embedded at-market derivative portion of our

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value

The fair values of our derivatives and their presentation on the consolidated balance sheets as of December 31, 2021 and 2020 were as follows (in thousands):

		December 31, 2021				December 31, 2020
		Assets		Liabilities		Assets		Liabilities
Derivatives not designated as hedging instruments	Financial statement line item
Interest rate swaps	Other assets(1)	$	11,543	$	—	$	—	$	—
	Other long-term liabilities(2)	—		11,543		—		—
Total		$	11,543	$	11,543	$	—	$	—
Derivatives designated as hedging instruments	Financial statement line item
Interest rate swaps	Other accrued expenses(3)	$	—	$	13,127	$	—	$	—
	Other long-term liabilities(3)	—		28,279		—		75,770
Foreign currency forward contracts	Prepaid expenses and other	728		—		—		—
Total		$	728	$	41,406	$	—	$	75,770

(1)The balance as of December 31, 2021 is related to receive-fixed interest rate swaps for which the fair value option has been elected.

(2)The balance as of December 31, 2021 is related to a pay-fixed May 2019 active interest rate swap which has been de-designated as a cash flow hedge.

(3)The balances as of December 31, 2021 include the financing component of the pay-fixed interest rate swaps.

Schedule of Derivative Instruments, Gain (Loss)

The effect of our derivatives and their presentation on the consolidated statements of operations for the years ended December 31, 2021 and 2020 were as follows (in thousands):

		Year Ended
		December 31, 2021		December 31, 2020
Derivatives not designated as hedging instruments	Financial statement line item
Interest rate swaps	Interest expense(1)	$	21,164	$	—
Foreign currency forward contracts	Cost of sales	1,083		—
Derivatives designated as hedging instruments
Interest rate swaps	Interest expense	15,998		24,198
		$	38,245	$	24,198

(1)For the year ended December 31, 2021, the entire balance related to the reclassification from accumulated other comprehensive loss to interest expense is due to de-designation from hedge accounting of all May 2019 interest rate swaps.

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FAIR VALUE OF FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Tables)

12 Months Ended

Dec. 31, 2021

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments Not Currently Recognized at Fair Value

The fair values of the remaining financial instruments not currently recognized at fair value on our consolidated balance sheets at the respective period ends were (in thousands): 

	December 31, 2021				December 31, 2020
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Term loan facility	$	2,580,500	$	2,570,823	$	2,497,967	$	2,485,477
8.00% Senior Notes	—		—		645,000		674,025
6.125% Senior Notes	500,000		531,900		500,000		530,000

Schedule of Fair Value of Assets and Liabilities, by Type

The following tables summarize information regarding our financial assets and liabilities that are measured at fair value on a recurring basis as of December 31, 2021 and 2020, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value (in thousands):

	December 31, 2021
	Level 1		Level 2		Level 3		Total
Assets:
Short-term investments in deferred compensation plan:(1)
Money market	$	24	$	—	$	—	$	24
Mutual funds – Growth	557		—		—		557
Mutual funds – Blend	1,560		—		—		1,560
Mutual funds – Foreign blend	467		—		—		467
Mutual funds – Fixed income	—		151		—		151
Total short-term investments in deferred compensation plan(2)	2,608		151		—		2,759
Foreign currency forward contracts	—		728		—		728
Interest rate swap assets(3)	—		11,543		—		11,543
Total assets	$	2,608	$	12,422	$	—	$	15,030
Liabilities:
Deferred compensation plan liability(2)	$	—	$	2,759	$	—	$	2,759
Interest rate swap liabilities(4)	—		52,949		—		52,949
Total liabilities	$	—	$	55,708	$	—	$	55,708

	December 31, 2020
	Level 1		Level 2		Level 3		Total
Assets:
Short-term investments in deferred compensation plan:(1)
Money market	$	349	$	—	$	—	$	349
Mutual funds – Growth	487		—		—		487
Mutual funds – Blend	1,006		—		—		1,006
Mutual funds – Foreign blend	338		—		—		338
Mutual funds – Fixed income	—		153		—		153
Total short-term investments in deferred compensation plan(2)	2,180		153		—		2,333
Total assets	$	2,180	$	153	$	—	$	2,333
Liabilities:
Deferred compensation plan liability(2)	$	—	$	2,339	$	—	$	2,339
Interest rate swap liabilities	—		75,770		—		75,770
Total liabilities	$	—	$	78,109	$	—	$	78,109

(1)Unrealized holding gains (losses) were $0.2 million and $(0.5) million for the years ended December 31, 2021 and 2020, respectively.

(2)The Company records the short-term investments in deferred compensation plan within investments in debt and equity securities, at market, and the deferred compensation plan liability within accrued compensation and benefits on the consolidated balance sheets.

(3)The interest rate swap assets relate to receive-fixed interest rate swaps for which the fair value option has been elected.

(4)The balance as of December 31, 2021 includes $41.4 million related to the financing component of pay-fixed interest rate swaps and $11.5 million related to pay-fixed May 2019 active interest rate swaps which have been de-designated as cash flow hedges.

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INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2021

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

The following is a summary of the components of income (loss) before provision (benefit) for income taxes (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Domestic	$	818,635	$	(420,014)	$	(12,016)
Foreign	83,192		(57,201)		1,401
	$	901,827	$	(477,215)	$	(10,615)

The components of the provision for income taxes consisted of the following (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Current:
Federal	$	219,379	$	(1,343)	$	(311)
State	64,509		7,316		7,219
Foreign	11,590		3,909		3,952
Total current	295,478		9,882		10,860
Deferred:
Federal	(43,980)		82		205
State	(18,363)		1,462		1,875
Foreign	2,833		(5,863)		(8,165)
Total deferred	(59,510)		(4,319)		(6,085)
Total provision (benefit)	$	235,968	$	5,563	$	4,775

Schedule of Effective Income Tax Rate Reconciliation

The reconciliation of income tax computed at the United States federal statutory tax rate to the effective income tax rate is as follows:

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Federal income tax at statutory rate	$	189,384	$	(100,215)	$	(2,229)
State income taxes	34,071		7,482		8,059
Non-deductible expenses	180		217		62
Gain on divestitures	9,725		—		—
Compensation related expenses	2,573		3,630		3,518
Meals and entertainment	552		465		1,265
Tax credits	(14,285)		(3,343)		(7,179)
Foreign income tax	3,413		(2,820)		(884)
Employee fringe benefits	480		443		474
Unrecognized tax benefits	5,686		(157)		(581)
Reversal of valuation allowance	—		—		(3,981)
Global intangible low-taxed income	8,248		4,317		4,398
Goodwill impairment	—		94,793		—
Transaction costs	—		—		1,903
Other	(4,059)		751		(50)
Total provision (benefit)	$	235,968	$	5,563	$	4,775

Tax Effect of Temporary Differences

The tax effects of the temporary differences as December 31, 2021 and 2020 are as follows (in thousands):

	December 31, 2021		December 31, 2020
Deferred tax assets:
Inventory obsolescence	$	4,363	$	4,369
Bad debt reserve	2,511		2,302
Accrued and deferred compensation	13,136		7,522
Accrued insurance reserves	7,895		8,429
Net operating loss and tax credit carryover	41,732		61,169
Pension	1,148		4,576
Leases	72,812		68,589
Warranty	44,925		44,969
Other reserves	52,635		48,258
Total deferred tax assets	241,157		250,183
Less valuation allowance	(15,634)		(11,996)
Net deferred tax assets	225,523		238,187
Deferred tax liabilities:
Depreciation and amortization	(388,730)		(424,254)
Stock basis	(12,733)		(12,826)
Leases	(72,098)		(66,962)
Other	(2,296)		(2,070)
Total deferred tax liabilities	(475,857)		(506,112)
Total deferred tax liability, net	$	(250,334)	$	(267,925)

Rollforward of Valuation Allowance on Deferred Tax Activity

The rollforward of the valuation allowance on deferred taxes is as follows for the periods indicated (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Beginning balance	$	11,996	$	10,347	$	19,497
Additions (reductions)	3,638		1,649		(9,150)
Ending balance	$	15,634	$	11,996	$	10,347

Schedule of Unrecognized Tax Benefits Roll Forward

The following is a rollforward of unrecognized tax benefits (excluding interest and penalties) for the years ended December 31, 2021 and 2020 (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020
Unrecognized tax benefits at beginning of year	$	9,403	$	10,107
Additions based on tax positions related to current year	6,037		194
Reductions for tax positions of prior years	15		(39)
Reductions resulting from expiration of statute of limitations	(610)		(859)
Unrecognized tax benefits at end of year	$	14,845	$	9,403

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ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)

12 Months Ended

Dec. 31, 2021

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Loss

Accumulated other comprehensive loss consists of the following (in thousands):

	December 31, 2021		December 31, 2020
Foreign exchange translation adjustments	$	22,741	$	16,147
Unrealized loss on derivative instruments, net of tax benefit of $5,549 and $17,612, respectively	(23,407)		(58,625)
Defined benefit pension plan actuarial losses, net of tax benefit of $1,854 and $5,049, respectively	(4,946)		(9,039)
Accumulated other comprehensive loss	$	(5,612)	$	(51,517)

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STOCK REPURCHASE PROGRAM (Tables)

12 Months Ended

Dec. 31, 2021

Equity [Abstract]

Changes In Treasury Common Stock, at Cost

Changes in treasury stock, at cost, were as follows (in thousands):

	Number of Shares	Amount
Balance, December 31, 2018	111	$	1,678
Purchases	257	1,934
Retirements	(307)	(2,423)
Deferred compensation obligation	(6)	(86)
Balance, December 31, 2019	56	$	1,103
Purchases	1,298	7,994
Retirements	(1,299)	(7,995)
Deferred compensation obligation	(30)	(592)
Balance, December 31, 2020	25	$	510
Purchases	612	9,685
Retirements	(612)	(9,685)
Deferred compensation obligation	(4)	(86)
Balance, December 31, 2021	21	$	424

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EMPLOYEE BENEFIT PLANS (Tables)

12 Months Ended

Dec. 31, 2021

Retirement Benefits [Abstract]

Schedule of Assumptions Used

Assumptions—Weighted average actuarial assumptions used to determine benefit obligations were as follows:

	Defined Benefit Plans				OPEB Plans
	December 31, 2021		December 31, 2020		December 31, 2021		December 31, 2020
Discount rate	2.85	%	2.50	%	2.85	%	2.45	%

Weighted average actuarial assumptions used to determine net periodic benefit cost (income) were as follows:

	Defined Benefit Plans				OPEB Plans
	FY 2021		FY 2020		FY 2021		FY 2020
Discount rate	2.50	%	3.30	%	2.45	%	3.20	%
Expected return on plan assets	5.95	%	5.87	%	n/a		n/a

Schedule of Change in Projected Benefit Obligation

The changes in the projected benefit obligation, plan assets and funded status, and the amounts recognized on our consolidated balance sheets were as follows (in thousands):

	Defined Benefit Plans				OPEB Plans
	FY 2021		FY 2020		FY 2021		FY 2020
Change in benefit obligation
Benefit obligation at beginning of period	$	104,934	$	101,148	$	7,575	$	7,778
Service cost	54		46		17		17
Interest cost	2,542		3,231		178		237
Benefits paid	(6,641)		(6,883)		(985)		(661)
Actuarial (gains) losses	(3,755)		7,392		(283)		204
Benefit obligation at end of period	$	97,134	$	104,934	$	6,502	$	7,575
Accumulated benefit obligation at end of period	$	97,134	$	104,934
Change in plan assets
Fair value of assets at beginning of period	$	94,215	$	86,105	$	—	$	—
Actual return on plan assets	8,162		10,574		—		—
Company contributions	3,218		4,419		985		661
Benefits paid	(6,641)		(6,883)		(985)		(661)
Fair value of assets at end of period	$	98,954	$	94,215	$	—	$	—
Funded status at end of period	$	1,820	$	(10,719)	$	(6,502)	$	(7,575)
Amounts recognized on the consolidated balance sheets
Noncurrent assets	$	5,098	$	5,056	$	—	$	—
Current liabilities	—		—		(546)		(656)
Noncurrent liabilities	(3,278)		(15,775)		(5,956)		(6,919)
	$	1,820	$	(10,719)	$	(6,502)	$	(7,575)

Schedule of Funded Status

For these plans, the projected benefit obligations and the fair value of plan assets were as follows (in thousands):

	December 31, 2021		December 31, 2020
Projected benefit obligations	$	46,372	$	90,267
Fair value of plan assets	43,093		74,491
Funded status	$	(3,279)	$	(15,776)

Schedule of Weighted Average Assets Allocation by Assets Category

As of December 31, 2021 and 2020, the weighted average asset allocations by asset category for the Defined Benefit Plans were as follows (in thousands):

Investment type	December 31, 2021		December 31, 2020
Equity securities	31	%	60	%
Debt securities	67	%	34	%
Real estate	2	%	6	%
Total	100	%	100	%

Schedule of Fair Value of Separate Accounts by Assets Category

The fair values of the assets of the Defined Benefit Plans at December 31, 2021 and 2020, by asset category and by levels of fair value, as further defined in Note 17 — Fair Value of Financial Instruments and Fair Value Measurements were as follows (in thousands):

	December 31, 2021						December 31, 2020
Asset category	Level 1		Level 2		Total		Level 1		Level 2		Total
Cash and cash equivalents	$	20	$	—	$	20	$	48	$	—	$	48
Mutual funds:
Growth funds	6,649		—		6,649		11,677		—		11,677
Real estate funds	2,072		—		2,072		5,966		—		5,966
Equity income funds	6,197		—		6,197		9,031		—		9,031
Index funds	12,642		—		12,642		26,364		—		26,364
International equity funds	4,883		—		4,883		8,844		—		8,844
Fixed income funds	12,982		53,509		66,491		12,562		19,723		32,285
Total	$	45,445	$	53,509	$	98,954	$	74,492	$	19,723	$	94,215

Schedule of Net Periodic Benefit Costs (Income)

Net periodic benefit cost (income) —The components of the net periodic benefit cost (income) were as follows (in thousands):

	Defined Benefit Plans
	FY 2021		FY 2020		FY 2019
Service cost	$	54	$	46	$	42
Interest cost	2,542		3,231		3,897
Expected return on assets	(5,439)		(4,958)		(4,935)
Amortization of prior service cost	65		62		58
Amortization of loss	416		433		1,313
Net periodic benefit cost (income)	$	(2,362)	$	(1,186)	$	375

	OPEB Plans
	FY 2021		FY 2020		FY 2019
Service cost	$	17	$	17	$	22
Interest cost	178		237		262
Amortization of loss	70		108		—
Net periodic benefit cost	$	265	$	362	$	284

Schedule of The Amounts in AOCI Net Not Yet Recognized

The amounts in accumulated other comprehensive income that have not yet been recognized as components of net periodic benefit income are as follows (in thousands):

	Defined Benefit Plans				OPEB Plans
	December 31, 2021		December 31, 2020		December 31, 2021		December 31, 2020
Unrecognized actuarial loss	$	5,450	$	12,345	$	1,350	$	1,703
Unrecognized prior service cost	—		65		—		—
Total	$	5,450	$	12,410	$	1,350	$	1,703

Schedule of Change in Plan Assets and Benefit Obligations Recognized in OCI

The changes in plan assets and benefit obligation recognized in other comprehensive income (loss) are as follows (in thousands):

	Defined Benefit Plans
	FY 2021		FY 2020		FY 2019
Net actuarial loss (gain)	$	(6,479)	$	1,777	$	(315)
Amortization of net actuarial loss	(416)		(433)		(1,313)
Amortization of prior service cost	(65)		(63)		(58)
Total recognized in other comprehensive income (loss)	$	(6,960)	$	1,281	$	(1,686)

	OPEB Plans
	FY 2021		FY 2020		FY 2019
Net actuarial loss (gain)	$	(283)	$	204	$	1,367
Amortization of net actuarial loss	(70)		(108)		—
Total recognized in other comprehensive income (loss)	$	(353)	$	96	$	1,367

Schedule of Expected Benefit Payments

We expect the following benefit payments to be made (in thousands):

Fiscal years ending	Defined Benefit Plans		OPEB Plans
2022	$	6,554	$	554
2023	6,522		539
2024	6,417		485
2025	6,337		463
2026	6,268		391
2027 - 2031	29,529		1,923

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SEGMENT INFORMATION (Tables)

12 Months Ended

Dec. 31, 2021

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

Summary financial data attributable to the segments for the periods indicated is as follows (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Net sales:
Windows	$	2,322,277	$	1,889,625	$	1,930,447
Siding	1,364,080		1,141,946		1,111,407
Commercial	1,896,780		1,585,798		1,847,893
Total net sales	$	5,583,137	$	4,617,369	$	4,889,747
Operating income (loss):
Windows	$	100,725	$	(223,646)	$	92,538
Siding	137,772		(61,930)		66,273
Commercial	1,104,335		159,586		201,073
Corporate	(205,587)		(140,516)		(145,148)
Total operating income (loss)	$	1,137,245	$	(266,506)	$	214,736
Unallocated other expense, net	(235,418)		(210,709)		(225,351)
Income (loss) before income taxes	$	901,827	$	(477,215)	$	(10,615)
Depreciation and amortization:
Windows	$	134,626	$	121,519	$	94,737
Siding	116,660		113,737		121,004
Commercial	36,282		45,213		44,550
Corporate	5,333		4,133		3,473
Total depreciation and amortization expense	$	292,901	$	284,602	$	263,764
Capital expenditures:
Windows	$	49,001	$	22,197	$	43,408
Siding	33,198		28,558		22,695
Commercial	16,934		26,833		51,144
Corporate	15,582		4,263		3,838
Total capital expenditures	$	114,715	$	81,851	$	121,085
			December 31, 2021		December 31, 2020
Property, plant and equipment, net:
Windows			$	251,627	$	223,206
Siding			155,346		159,761
Commercial			174,440		227,391
Corporate			30,882		21,463
Total property, plant and equipment, net			$	612,295	$	631,821
Total assets:
Windows			$	2,223,098	$	1,717,032
Siding			2,060,275		2,123,615
Commercial			1,073,264		890,380
Corporate			470,823		747,463
Total assets			$	5,827,460	$	5,478,490

Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country

Summary financial data attributable to various geographic regions for the periods indicated is as follows (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Total sales:
United States of America	$	5,132,085	$	4,304,559	$	4,526,385
Canada	422,867		305,780		340,250
Mexico	9,417		3,093		3,381
All other	18,768		3,937		19,731
Total net sales	$	5,583,137	$	4,617,369	$	4,889,747
			December 31, 2021		December 31, 2020
Long-lived assets:
United States of America			$	3,213,052	$	3,107,027
Canada			270,752		292,503
Costa Rica			324		189
Mexico			10,858		11,435
Total long-lived assets			$	3,494,986	$	3,411,154

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NATURE OF BUSINESS, RECENT DEVELOPMENTS, AND BASIS OF PRESENTATION (Details)	12 Months Ended
	Dec. 31, 2021 segment	Feb. 13, 2022 $ / shares
Subsequent Event [Line Items]
Number of reportable segments | segment	3
Subsequent Event
Subsequent Event [Line Items]
Sale of stock, proposed price (in dollars per share) | $ / shares		$ 24.65

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Restricted Cash (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Cash and cash equivalents	$ 394,447	$ 674,255
Restricted cash	2,211	6,223
Total cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows	$ 396,658	$ 680,478	$ 102,307	$ 147,607

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Rollforward of Uncollectible Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning balance	$ 13,313	$ 9,962	$ 10,270
Provision for expected credit losses	3,604	5,390	2,035
Amounts charged against allowance for credit losses, net of recoveries	(1,729)	(3,579)	(2,807)
Allowance for credit losses of acquired company at date of acquisition	269	862	464
Divestitures	(4,158)	0	0
Ending balance	11,299	13,313	9,962
Cumulative Effect, Period of Adoption, Adjustment
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning balance	$ 0	678	0
Ending balance		$ 0	$ 678

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Components of Inventory (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Raw materials	$ 485,642	$ 241,353
Work in process and finished goods	263,090	190,584
Inventory, net	$ 748,732	$ 431,937

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Rollforward of Reserve for Obsolete Materials and Supplies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Inventory Obsolescence
Beginning balance	$ 22,172	$ 18,712	$ 19,227
Provisions	5,155	8,015	3,207
Dispositions	(6,029)	(4,555)	(4,082)
Reserve of acquired company at date of acquisition	705	0	360
Divestitures	(722)	0	0
Ending balance	$ 21,281	$ 22,172	$ 18,712

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Summary Of Significant Accounting Policies [Line Items]
Carrying value of assets held for sale	$ 3,400,000	$ 4,600,000
Proceeds from sale of property, plant and equipment	5,124,000	3,569,000	$ 5,511,000
Proceeds from sale of property held-for-sale		2,000,000
Depreciation expense	103,000,000	103,500,000	86,200,000
Amount of interest capitalized	$ 900,000	1,100,000	1,200,000
Warranty, term	10 years
Reinsurance effect on claims and benefits incurred, amount assumed	$ 500,000
Workers compensation insurance, deductible amount	1,000,000
Property liability insurances, deductible amount	500,000
Auto liability insurance, deductible amount	500,000
General liability insurance	$ 1,000,000
IBNR claims value determination claim paid period	36 months
Advertising expense	$ 16,900,000	15,100,000	28,600,000
Foreign exchange gain (loss)	(3,749,000)	1,068,000	2,054,000
Other comprehensive income (loss), foreign currency transaction and translation adjustment, net of tax	6,600,000	17,300,000	3,200,000
Canada
Summary Of Significant Accounting Policies [Line Items]
Foreign exchange gain (loss)	(3,100,000)	1,100,000	1,200,000
Mexico
Summary Of Significant Accounting Policies [Line Items]
Foreign currency transaction remeasurement gains (losses)	$ (600,000)	200,000	$ 900,000
Computer software, intangible asset | Minimum
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	3 years
Computer software, intangible asset | Maximum
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	7 years
Commercial
Summary Of Significant Accounting Policies [Line Items]
Reclassification of property, pant and equipment to assets held for sale		1,700,000
Discontinued operations held-for-sale
Summary Of Significant Accounting Policies [Line Items]
Gain (loss) on sale of assets and asset recovery	$ 0	$ 1,400,000

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,268,787	$ 1,276,129
Less: accumulated depreciation	(656,492)	(644,308)
Property, plant and equipment, net	612,295	631,821
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	24,812	26,933
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	253,637	279,113
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 990,338	$ 970,083

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Estimated Useful Lives for Depreciation (Details)	12 Months Ended
	Dec. 31, 2021
Buildings and improvements | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	15 years
Buildings and improvements | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	39 years
Machinery and equipment | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Machinery and equipment | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	15 years

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Total net sales	$ 5,583,137	$ 4,617,369	$ 4,889,747
Windows
Disaggregation of Revenue [Line Items]
Total net sales	2,322,277	1,889,625	1,930,447
Windows | Vinyl windows
Disaggregation of Revenue [Line Items]
Total net sales	2,190,887	1,763,565	1,838,796
Windows | Aluminum windows
Disaggregation of Revenue [Line Items]
Total net sales	85,735	74,672	53,622
Windows | Other products & services
Disaggregation of Revenue [Line Items]
Total net sales	45,655	51,388	38,029
Siding
Disaggregation of Revenue [Line Items]
Total net sales	1,364,080	1,141,946	1,111,407
Siding | Other products & services
Disaggregation of Revenue [Line Items]
Total net sales	240,060	209,826	164,578
Siding | Vinyl siding
Disaggregation of Revenue [Line Items]
Total net sales	667,284	523,724	525,005
Siding | Metal
Disaggregation of Revenue [Line Items]
Total net sales	293,427	255,267	263,018
Siding | Injection molded
Disaggregation of Revenue [Line Items]
Total net sales	75,361	66,672	66,578
Siding | Stone
Disaggregation of Revenue [Line Items]
Total net sales	87,948	86,457	92,228
Commercial
Disaggregation of Revenue [Line Items]
Total net sales	1,896,780	1,585,798	1,847,893
Commercial | Metal Building Products
Disaggregation of Revenue [Line Items]
Total net sales	1,473,662	1,107,733	1,249,757
Commercial | Insulated Metal Panels
Disaggregation of Revenue [Line Items]
Total net sales	208,220	348,640	441,441
Commercial | Metal coil coating
Disaggregation of Revenue [Line Items]
Total net sales	$ 214,898	$ 129,425	$ 156,695

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ACQUISITION - Narrative (Details) $ in Thousands						3 Months Ended	12 Months Ended
	Dec. 03, 2021 USD ($)	Aug. 20, 2021 USD ($)	Apr. 30, 2021 USD ($) facility	Mar. 02, 2020 USD ($)	Feb. 20, 2019 USD ($)	Jul. 04, 2020 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Business Acquisition [Line Items]
Goodwill							$ 1,358,056	$ 1,194,729	$ 1,669,594
Strategic development and acquisition related costs							27,875	19,341	50,185
Windows
Business Acquisition [Line Items]
Goodwill							541,196	397,024	714,023
Commercial
Business Acquisition [Line Items]
Goodwill							161,762	142,884	$ 148,291
Union Corrugating Company Holdings, Inc.
Business Acquisition [Line Items]
Percentage of voting interest acquired	100.00%
Total consideration transferred	$ 216,800
Goodwill	140,342
Net sales contributed during year							21,900
Net income contributed during year							1,800
Acquisition expenses							1,000
Union Corrugating Company Holdings, Inc. | Commercial
Business Acquisition [Line Items]
Goodwill	$ 140,300
Cascade Windows LLC
Business Acquisition [Line Items]
Goodwill		$ 110,816
Net sales contributed during year							57,400
Net income contributed during year							(6,200)
Acquisition expenses							1,900
Strategic development and acquisition related costs							1,200
Cash payments		239,500
Cascade Windows LLC | Windows
Business Acquisition [Line Items]
Goodwill		$ 110,800
Prime Windows LLC
Business Acquisition [Line Items]
Total consideration transferred			$ 93,000
Consideration transferred, excluding working capital adjustment			2,000
Goodwill			$ 33,148
Net sales contributed during year							55,800
Net income contributed during year							5,300
Acquisition expenses							1,000
Strategic development and acquisition related costs							700
Prime Windows LLC | United States
Business Acquisition [Line Items]
Number of businesses acquired | facility			2
Prime Windows LLC | Windows
Business Acquisition [Line Items]
Goodwill			$ 33,100
Kleary Acquisition
Business Acquisition [Line Items]
Percentage of voting interest acquired				100.00%
Total consideration transferred				$ 40,000
Consideration transferred, excluding working capital adjustment						$ 2,000
Goodwill				$ 12,539
Acquisition expenses							5,400	$ 10,200
Strategic development and acquisition related costs							$ 4,200
Environmental Stoneworks
Business Acquisition [Line Items]
Percentage of voting interest acquired					100.00%
Total consideration transferred					$ 182,600
Goodwill					$ 63,543

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ACQUISITIONS - Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 03, 2021	Aug. 20, 2021	Apr. 30, 2021	Dec. 31, 2020	Mar. 02, 2020	Dec. 31, 2019	Feb. 20, 2019
Assets acquired:
Goodwill	$ 1,358,056				$ 1,194,729		$ 1,669,594
Union Corrugating Company Holdings, Inc.
Assets acquired:
Cash		$ 19,594
Accounts receivable		20,821
Other receivables		16
Inventories		68,727
Prepaid expenses and other current assets		1,356
Property, plant and equipment		24,184
Lease right-of-use assets		37,964
Goodwill		140,342
Other assets		94
Total assets acquired		313,098
Liabilities assumed:
Accounts payable		32,732
Accrued expenses		22,427
Deferred income taxes		1,289
Current portion of lease liability		3,859
Other current liabilities		1,852
Non-current portion of lease liabilities		34,105
Total liabilities assumed		96,264
Net assets acquired		$ 216,834
Cascade Windows LLC
Assets acquired:
Cash			$ 2,838
Accounts receivable			17,398
Other receivables			409
Inventories			16,278
Prepaid expenses and other current assets			1,538
Property, plant and equipment			18,300
Lease right-of-use assets			21,849
Intangible assets (trade names/customer relationships)			137,660
Goodwill			110,816
Other assets			500
Total assets acquired			327,586
Liabilities assumed:
Accounts payable			17,680
Accrued expenses			7,488
Deferred income taxes			33,221
Current portion of lease liability			247
Other current liabilities			2,349
Non-current portion of lease liabilities			19,926
Other long-term liabilities			7,211
Total liabilities assumed			88,122
Net assets acquired			$ 239,464
Prime Windows LLC
Assets acquired:
Cash				$ 997
Accounts receivable				5,500
Inventories				4,446
Prepaid expenses and other current assets				823
Property, plant and equipment				2,500
Lease right-of-use assets				2,787
Intangible assets (trade names/customer relationships)				51,600
Goodwill				33,148
Other assets				50
Total assets acquired				101,851
Liabilities assumed:
Accounts payable				1,676
Accrued expenses				1,679
Non-current portion of lease liabilities				2,637
Other long-term liabilities				829
Total liabilities assumed				6,821
Net assets acquired				$ 95,030
Kleary Acquisition
Assets acquired:
Cash						$ 143
Accounts receivable						7,135
Inventories						670
Prepaid expenses and other current assets						277
Property, plant and equipment						1,042
Lease right-of-use assets						445
Intangible assets (trade names/customer relationships)						22,350
Goodwill						12,539
Total assets acquired						44,601
Liabilities assumed:
Accounts payable						1,149
Other current liabilities						1,020
Non-current portion of lease liabilities						339
Other long-term liabilities						109
Total liabilities assumed						2,617
Net assets acquired						$ 41,984
Environmental Stoneworks
Assets acquired:
Restricted cash								$ 3,379
Accounts receivable								16,825
Inventories								13,062
Prepaid expenses and other current assets								3,677
Property, plant and equipment								14,295
Lease right-of-use assets								11,372
Intangible assets (trade names/customer relationships)								91,170
Goodwill								63,543
Deferred taxes								474
Other assets								157
Total assets acquired								217,954
Liabilities assumed:
Accounts payable								5,910
Accrued expenses								14,666
Non-current portion of lease liabilities								11,365
Other long-term liabilities								3,450
Total liabilities assumed								35,391
Net assets acquired								$ 182,563

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ACQUISITIONS - Schedule of Pro Forma Information (Details) - Environmental Stoneworks - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Business Combination Segment Allocation [Line Items]
Net sales	$ 5,977,230	$ 5,056,390	$ 5,387,135
Net income (loss) applicable to common shares	$ 663,273	$ (480,289)	$ 26,688
Earnings Per Share, Pro Forma [Abstract]
Basic (in dollars per share)	$ 5.26	$ (3.83)	$ 0.21
Diluted (in dollars per share)	$ 5.23	$ (3.83)	$ 0.21

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DIVESTITURES (Details) - USD ($) $ in Millions			12 Months Ended
	Aug. 18, 2021	Aug. 09, 2021	Dec. 31, 2021
Asset Acquisition, Contingent Consideration [Line Items]
Contract with customer liability, current		$ 15.5
Divestiture related cost			$ 21.3
Insulated Metal Panels
Asset Acquisition, Contingent Consideration [Line Items]
Proceeds from divestitures, net of cash divested		$ 1,000.0
Gain on divestiture of business			679.8
DBCI
Asset Acquisition, Contingent Consideration [Line Items]
Proceeds from divestitures, net of cash divested	$ 168.9
Gain on divestiture of business			$ 151.5

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RESTRUCTURING AND IMPAIRMENT - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Apr. 04, 2020	Dec. 31, 2021
Business Combination Segment Allocation [Line Items]
Restructuring costs		$ 26,247
Restructuring charges at corporate headquarters		600
Restructuring incurred to date		78,584
Asset impairment	$ 3,100	$ 22,200
Minimum
Business Combination Segment Allocation [Line Items]
Estimate plan time		12 months
Maximum
Business Combination Segment Allocation [Line Items]
Estimate plan time		24 months
Windows
Business Combination Segment Allocation [Line Items]
Restructuring costs		$ 1,300
Windows | Right of use asset
Business Combination Segment Allocation [Line Items]
Asset impairment		300
Siding
Business Combination Segment Allocation [Line Items]
Restructuring costs		14,200
Siding | Product line asset
Business Combination Segment Allocation [Line Items]
Asset impairment		14,000
Commercial
Business Combination Segment Allocation [Line Items]
Restructuring costs		10,100
Asset impairment		6,400
Commercial | Software development costs
Business Combination Segment Allocation [Line Items]
Asset impairment		$ 1,500

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RESTRUCTURING AND IMPAIRMENT - Summary of Restructuring Plan Costs (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 26,247
Severance
Restructuring Cost and Reserve [Line Items]
Restructuring costs	3,696
Cost Incurred To Date (since inception)	39,927
Asset impairments
Restructuring Cost and Reserve [Line Items]
Restructuring costs	22,210
Cost Incurred To Date (since inception)	30,078
Gain on sale of facilities, net
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0
Cost Incurred To Date (since inception)	(1,298)
Other restructuring costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs	341
Cost Incurred To Date (since inception)	$ 9,877

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RESTRUCTURING AND IMPAIRMENT - Summary of Severance Liability and Cash Payments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring Reserve [Roll Forward]
Beginning Balance	$ 3,562	$ 2,663	$ 2,418
Costs incurred	3,696	26,573	9,658
Cash payments	(5,226)	(25,674)	(9,413)
Ending Balance	2,032	3,562	2,663
Corporate
Restructuring Reserve [Roll Forward]
Beginning Balance	430	1,763	2,333
Costs incurred	457	3,013	4,009
Cash payments	(587)	(4,346)	(4,579)
Ending Balance	300	430	1,763
Windows | Operating Segments
Restructuring Reserve [Roll Forward]
Beginning Balance	306	418	0
Costs incurred	971	4,294	1,094
Cash payments	(1,262)	(4,406)	(676)
Ending Balance	15	306	418
Siding | Operating Segments
Restructuring Reserve [Roll Forward]
Beginning Balance	835	482	85
Costs incurred	264	2,705	1,834
Cash payments	(904)	(2,352)	(1,437)
Ending Balance	195	835	482
Commercial | Operating Segments
Restructuring Reserve [Roll Forward]
Beginning Balance	1,991	0	0
Costs incurred	2,004	16,561	2,721
Cash payments	(2,473)	(14,570)	(2,721)
Ending Balance	$ 1,522	$ 1,991	$ 0

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GOODWILL AND OTHER INTANGIBLE ASSETS - Carrying Amount of Goodwill by Operating Segment (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Apr. 04, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Beginning balance	$ 1,669,594	$ 1,194,729	$ 1,669,594
Goodwill recognized from acquisition		284,428	12,539
Impairment		0	(503,171)	$ 0
Divestiture		(121,464)
Currency translation		363	13,991
Purchase accounting adjustments from prior year acquisitions			1,776
Ending balance		1,358,056	1,194,729	1,669,594
Windows
Goodwill [Roll Forward]
Beginning balance	714,023	397,024	714,023
Goodwill recognized from acquisition		143,964	0
Impairment	(321,000)		(320,990)
Divestiture		0
Currency translation		208	3,991
Purchase accounting adjustments from prior year acquisitions			0
Ending balance		541,196	397,024	714,023
Siding
Goodwill [Roll Forward]
Beginning balance	807,280	654,821	807,280
Goodwill recognized from acquisition		122	12,539
Impairment	(176,800)		(176,774)
Divestiture		0
Currency translation		155	10,000
Purchase accounting adjustments from prior year acquisitions			1,776
Ending balance		655,098	654,821	807,280
Commercial
Goodwill [Roll Forward]
Beginning balance	148,291	142,884	148,291
Goodwill recognized from acquisition		140,342	0
Impairment	$ (5,400)		(5,407)
Divestiture		(121,464)
Currency translation		0	0
Purchase accounting adjustments from prior year acquisitions			0
Ending balance		$ 161,762	$ 142,884	$ 148,291

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GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Apr. 04, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Line Items]
Goodwill impairment		$ 0	$ 503,171	$ 0
Asset impairment	$ 3,100	22,200
Intangible asset amortization		189,488	180,994	$ 177,577
Windows
Goodwill [Line Items]
Goodwill impairment	321,000		320,990
Siding
Goodwill [Line Items]
Goodwill impairment	176,800		176,774
Commercial
Goodwill [Line Items]
Goodwill impairment	$ 5,400		$ 5,407
Asset impairment		$ 6,400

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GOODWILL AND OTHER INTANGIBLE ASSETS - Intangible Asset Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Goodwill [Line Items]
Cost	$ 2,087,238	$ 2,006,766
Accumulated Amortization	(562,603)	(422,162)
Net Carrying Value	1,524,635	1,584,604
Trademarks, Trade Names, and Other
Goodwill [Line Items]
Cost	241,727	248,155
Accumulated Amortization	(76,574)	(51,722)
Net Carrying Value	165,153	196,433
Customer Lists and Relationships
Goodwill [Line Items]
Cost	1,845,511	1,758,611
Accumulated Amortization	(486,029)	(370,440)
Net Carrying Value	$ 1,359,482	$ 1,388,171
Minimum | Trademarks, Trade Names, and Other
Goodwill [Line Items]
Range of life (Years)	3 years	5 years
Minimum | Customer Lists and Relationships
Goodwill [Line Items]
Range of life (Years)	7 years	7 years
Maximum | Trademarks, Trade Names, and Other
Goodwill [Line Items]
Range of life (Years)	15 years	15 years
Maximum | Customer Lists and Relationships
Goodwill [Line Items]
Range of life (Years)	20 years	20 years
Weighted Average
Goodwill [Line Items]
Range of life (Years)	8 years	9 years
Weighted Average | Trademarks, Trade Names, and Other
Goodwill [Line Items]
Range of life (Years)	7 years	8 years
Weighted Average | Customer Lists and Relationships
Goodwill [Line Items]
Range of life (Years)	9 years	9 years

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GOODWILL AND OTHER INTANGIBLE ASSETS - Amortization Expense Over Next Five Fiscal Years (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2022	$ 196,157
2023	196,144
2024	195,487
2025	195,304
2026	$ 195,120

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LEASES - Summary of Lease Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Weighted-average remaining lease term	6 years 10 months 24 days
Weighted-average IBR	5.74%
Fixed lease costs	$ 107,938	$ 113,760
Variable lease costs	$ 102,646	$ 70,795

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LEASES - Summary of Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating cash flows for operating leases	$ 91,024	$ 99,076
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 88,826	$ 19,785

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LEASES - Schedule of Future Minimum Lease Payments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
2022	$ 89,202
2023	65,893
2024	52,382
2025	43,976
2026	36,016
Thereafter	108,542
Total future minimum lease payments	396,011
Less: interest	71,800
Present value of future minimum lease payments	324,211
Current portion of lease liabilities	73,150	$ 70,125
Long-term portion of lease liabilities	$ 251,061	$ 198,875

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SHARE-BASED COMPENSATION - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award termination period for incentive stock options	10 years
Award termination period after termination of employment or service	60 days
Award termination period after death	180 days
Stock options granted (in shares)	815,258	1,120,644	359,873
Average grant-date fair value of options (in dollars per share)	$ 7.38	$ 2.13	$ 1.97
Stock options exercises (in shares)	300,976	0	0
Cash received from option exercises	$ 3,300
Intrinsic value of options exercised	1,500
Tax benefit realized	600
Issuance of restricted stock	0	$ 0	$ 0
Allocated share-based compensation expense	29,000	17,100	14,100
Income tax benefits recognized	7,500	$ 4,400	3,700
Former CEO
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense	$ 1,000
Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available under incentive plan (in shares)	6,594,000	8,497,000
Performance Share Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage targeted number of shares		200.00%
Performance Share Awards | Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years	3 years
Performance Stock Units | Executive Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of PSUs granted	$ 28,000	$ 5,600	400
Time-Based
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of restricted stock	$ 18,700	$ 7,000	$ 3,300
Minimum | Employee stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Minimum | Restricted Stock Units (RSUs) | Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Minimum | Performance Share Awards | Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Maximum | Employee stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	5 years
Maximum | Restricted Stock Units (RSUs) | Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	5 years

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SHARE-BASED COMPENSATION - Weighted Average Assumptions for Equity Awards Granted (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Volatility rate	49.03%	47.52%	39.87%
Expected term (in years)	6 years	6 years	6 years 6 months
Risk-free interest rate	1.02%	0.48%	1.73%

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SHARE-BASED COMPENSATION - Summary of Stock Option Transactions (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Number of Shares
Beginning balance, number of shares (in shares)	3,215,000	2,848,000	3,297,000
Granted, number shares (in shares)	815,000	1,121,000	360,000
Exercised, number of shares (in shares)	(300,976)	0	0
Forfeited, number of shares (in shares)	(647,000)	(539,000)	(713,000)
Cancelled, number of shares (in shares)	(37,000)	(215,000)	(96,000)
Ending balance, number of shares (in shares)	3,045,000	3,215,000	2,848,000
Exercisable, end of period (in shares)	1,235,000
Weighted Average Exercise Price
Beginning balance, weighted-average exercise price (in dollars per share)	$ 8.95	$ 11.22	$ 12.08
Granted, weighted-average exercise price (in dollars per share)	15.01	4.86	4.67
Exercised, weighted-average exercise price (in dollars per share)	10.85
Forfeited, weighted-average exercise price (in dollars per share)	9.17	11.26	12.16
Cancelled, weighted-average exercise price (in dollars per share)	10.37	11.85	9.17
Ending balance, weighted-average exercise price (in dollars per share)	10.28	$ 8.95	$ 11.22
Exercise, weighted-average exercise price (in dollars per share)	$ 9.23
Stock Option Transactions
Weighted average remaining life	7 years 9 months 18 days
Exercisable, weighted average remaining life	7 years
Balance, aggregate intrinsic value	$ 21,817
Exercisable, aggregate intrinsic value	$ 10,136

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SHARE-BASED COMPENSATION - Additional Information Concerning Outstanding Options (Details) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding, number of options (in shares)	3,045	3,215	2,848	3,297
Options outstanding, weighted average remaining life	7 years 9 months 18 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 10.28	$ 8.95	$ 11.22	$ 12.08
Number of options (in shares)	1,235
Options exercisable, weighted average remaining life	7 years
Options exercisable, weighted average exercise price (in dollars per share)	$ 9.23
Stock Option 1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding, number of options (in shares)	1,119
Options outstanding, weighted average remaining life	8 years
Options outstanding, weighted average exercise price (in dollars per share)	$ 4.91
Number of options (in shares)	507
Options exercisable, weighted average remaining life	7 years 9 months 18 days
Options exercisable, weighted average exercise price (in dollars per share)	$ 4.83
Stock Option 2
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding, number of options (in shares)	1,926
Options outstanding, weighted average remaining life	7 years 9 months 18 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 13.40
Number of options (in shares)	728
Options exercisable, weighted average remaining life	6 years 6 months
Options exercisable, weighted average exercise price (in dollars per share)	$ 12.30

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SHARE-BASED COMPENSATION - Restricted Stock and Performance Award Transactions (Details) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Time-Based
Number of Shares
Number of shares, beginning balance (in shares)	2,354	1,819	2,245
Number of shares, granted (in shares)	1,248	1,399	703
Number of shares, vested (in shares)	(1,099)	(422)	(586)
Number of shares, forfeited (in shares)	(511)	(442)	(543)
Number of shares, ending balance (in shares)	1,992	2,354	1,819
Weighted Average Grant Price
Weighted average grant price, beginning balance (in dollars per share)	$ 7.02	$ 10.32	$ 12.57
Weighted average grant price, granted (in dollars per share)	14.97	5.04	5.40
Weighted average grant price, vested (in dollars per share)	6.23	11.77	12.42
Weighted average grant price, forfeited (in dollars per share)	9.64	9.76	11.00
Weighted average grant price, ending balance (in dollars per share)	$ 11.76	$ 7.02	$ 10.32
Performance-Based
Number of Shares
Number of shares, beginning balance (in shares)	1,375	711	1,037
Number of shares, granted (in shares)	1,525	1,068	76
Number of shares, vested (in shares)	(763)	(192)	(234)
Number of shares, forfeited (in shares)	(698)	(212)	(168)
Number of shares, ending balance (in shares)	1,439	1,375	711
Weighted Average Grant Price
Weighted average grant price, beginning balance (in dollars per share)	$ 6.93	$ 13.38	$ 14.63
Weighted average grant price, granted (in dollars per share)	24.48	5.25	4.67
Weighted average grant price, vested (in dollars per share)	10.67	19.65	16.30
Weighted average grant price, forfeited (in dollars per share)	11.38	8.49	13.09
Weighted average grant price, ending balance (in dollars per share)	$ 17.73	$ 6.93	$ 13.38

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SHARE-BASED COMPENSATION - Schedules of Employee Service Share-Based Compensation, Allocation of Recognized Period Costs (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total unrecognized share-based compensation expense	$ 44.3
Employee stock options
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock options	$ 7.8
Weighted Average Remaining Years	2 years 1 month 6 days
Time-based restricted stock
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Employee service share-based compensation, nonvested awards, compensation not yet recognized, share-based awards other than options	$ 16.8
Weighted Average Remaining Years	2 years 1 month 6 days
Performance-based restricted stock
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Employee service share-based compensation, nonvested awards, compensation not yet recognized, share-based awards other than options	$ 19.7
Weighted Average Remaining Years	1 year 7 months 6 days

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EARNINGS PER COMMON SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Numerator for Basic and Diluted Earnings Per Common Share:
Net income (loss) applicable to common shares	$ 658,044	$ (482,778)	$ (15,390)
Denominator for Basic and Diluted Earnings Per Common Share:
Weighted average basic number of common shares outstanding	126,058	125,562	125,576
Common stock equivalents:
Weighted average diluted number of common shares outstanding (in shares)	126,795	125,562	125,576
Basic earnings per common share (in usd per share)	$ 5.22	$ (3.84)	$ (0.12)
Diluted earnings per common share (in dollars per share)	$ 5.19	$ (3.84)	$ (0.12)
Incentive Plan securities excluded from dilution (in shares)	275	2,559	4,480
Employee stock options
Common stock equivalents:
Weighted average number diluted shares outstanding adjustment (in shares)	737	0	0

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OTHER ACCRUED EXPENSES (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Payables and Accruals [Abstract]
Sales and marketing	$ 99,845	$ 69,236
Accrued warranty obligation and deferred warranty revenue	30,181	26,094
Other accrued expenses	190,363	152,563
Total other accrued expenses	$ 320,389	$ 247,893

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WARRANTY (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Movement in Standard Product Warranty Accrual [Roll Forward]
Beginning balance	$ 216,230	$ 216,173
Acquisitions	10,518	109
Warranties sold	1,986	2,677
Revenue recognized	(2,650)	(2,746)
Expense	26,129	28,566
Settlements	(31,612)	(28,549)
Divestiture	(2,245)	0
Ending balance	218,356	216,230
Less: current portion	30,181	26,094
Total warranty, less current portion	$ 188,175	$ 190,136

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LONG-TERM DEBT- Schedule of debt (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Apr. 15, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long-term debt, gross	$ 3,080,500
Less: unamortized discounts and unamortized deferred financing costs	(43,657)		$ (53,938)
Total long-term debt, net of unamortized discounts and unamortized deferred financing costs	3,036,843		3,589,029
Current portion of long-term debt	26,000		25,600
Long-term debt	$ 3,010,843		3,563,429
Debt instrument stated rate	6.125%
Term loan facility due April 2028
Debt Instrument [Line Items]
Long-term debt, gross	$ 2,580,500		2,497,967
8.00% senior notes due April 2026
Debt Instrument [Line Items]
Long-term debt, gross	0		645,000
Total long-term debt, net of unamortized discounts and unamortized deferred financing costs	$ 0		645,000
Debt instrument stated rate	8.00%	8.00%
6.125% senior notes due January 2029
Debt Instrument [Line Items]
Long-term debt, gross	$ 500,000		500,000
Debt instrument stated rate	6.125%
ABL Credit Facility, Due 2023 | Other assets | ABL Facility
Debt Instrument [Line Items]
Unamortized deferred financing costs	$ 1,300		$ 1,700

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LONG-TERM DEBT- Schedule of debt maturity (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Debt Disclosure [Abstract]
2022	$ 26,000
2023	26,000
2024	26,000
2025	26,000
2026 and thereafter	2,976,500
Long-term debt	$ 3,080,500

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LONG-TERM DEBT- Narrative (Details) - USD ($)						12 Months Ended
	Apr. 15, 2021	Sep. 24, 2020	Nov. 16, 2018	Oct. 15, 2018	Apr. 12, 2018	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Nov. 15, 2018	Oct. 14, 2018
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 115,000,000
Payments on ABL facility						$ 190,000,000	$ 415,000,000	$ 220,000,000
Long-term debt, gross						$ 3,080,500,000
Debt instrument stated rate						6.125%
Revolving Credit Facility | ABL Facility
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity			$ 611,000,000	$ 396,000,000	$ 360,000,000
Line of credit facility, increase in borrowing capacity			215,000,000	36,000,000
Payments on ABL facility			325,000,000
Amended net debt to EBITDA leverage ratio					1.00
Covenant compliance, percentage of specified availability					10.00%
Covenant terms, specific availability in excess of threshold of calendar days					20 days
Term Loan Facility
Line of Credit Facility [Line Items]
Senior notes, aggregate principal amount	1,755,000,000
Discount rate (as a percent)					0.50%
Financing cost incurred	24,800,000
Deferred and amortized cost incurred	$ 13,200,000
Mandatory prepayment, percentage of annual excess cash flow	50.00%
Covenant compliance, excess cash flow, minimum	$ 10,000,000
Effective interest rate						4.02%
Term Loan Facility | Minimum | Leverage Ratio Target Achieve
Line of Credit Facility [Line Items]
Mandatory prepayment, percentage of annual excess cash flow	25.00%
Term Loan Facility | Maximum | Leverage Ratio Target Achieve
Line of Credit Facility [Line Items]
Mandatory prepayment, percentage of annual excess cash flow	0.00%
Term Loan Facility | London Interbank Offered Rate (LIBOR)
Line of Credit Facility [Line Items]
Spread on variable rate, floor	0.50%
Basis spread on variable rate	3.25%
Term Loan Facility | Base Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.25%
Term Loan Facility | Ply Gem
Line of Credit Facility [Line Items]
Senior notes, aggregate principal amount					$ 1,755,000,000
Line of credit facility, increase in borrowing capacity			805,000,000
Cash Flow Revolver
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 92,000,000
Secured debt, percentage of capital stock held by foreign subsidiary	65.00%
Covenant compliance, secured leverage ratio, maximum	7.75
Cash Flow Revolver | Minimum | Commitment Fee Percentage One
Line of Credit Facility [Line Items]
Unused commitment fee, as a percent	0.25%
Cash Flow Revolver | Maximum | Commitment Fee Percentage One
Line of Credit Facility [Line Items]
Unused commitment fee, as a percent	0.50%
Cash Flow Revolver | London Interbank Offered Rate (LIBOR)
Line of Credit Facility [Line Items]
Spread on variable rate, floor	0.00%
Cash Flow Revolver | London Interbank Offered Rate (LIBOR) | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.50%
Cash Flow Revolver | London Interbank Offered Rate (LIBOR) | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate	3.00%
Cash Flow Revolver | Base Rate | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.50%
Cash Flow Revolver | Base Rate | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.00%
Cash Flow Revolver | Ply Gem
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity					115,000,000
Extended Cash Flow Revolver
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 92,000,000
Tranche B Term Loan
Line of Credit Facility [Line Items]
Senior notes, aggregate principal amount	2,600,000,000
Line of credit facility, increase in borrowing capacity	108,400,000
Long-term debt, gross	2,491,600,000
8.00% senior notes due April 2026
Line of Credit Facility [Line Items]
Senior notes, aggregate principal amount	$ 645,000,000
Long-term debt, gross						$ 0	$ 645,000,000
Debt instrument stated rate	8.00%					8.00%
Redemption price	$ 670,800,000
Loss on extinguishment of debt						$ 41,900,000
Redemption premium						25,800,000
Write off of deferred debt issuance cost						$ 16,100,000
ABL U.S. Facility | Revolving Credit Facility | ABL Facility
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity			483,700,000	313,500,000	285,000,000				$ 313,500,000	$ 285,000,000
ABL Canadian Facility | Revolving Credit Facility | ABL Facility
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity			$ 127,300,000	$ 82,500,000	$ 75,000,000				$ 82,500,000	$ 75,000,000
Extended ABL Commitments | Revolving Credit Facility | Line of Credit
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 611,000,000
ABL Facility | Minimum | Commitment Fee Percentage One
Line of Credit Facility [Line Items]
Unused commitment fee, as a percent					0.25%
ABL Facility | London Interbank Offered Rate (LIBOR)
Line of Credit Facility [Line Items]
Spread on variable rate, floor					0.00%
ABL Facility | London Interbank Offered Rate (LIBOR) | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate					1.25%
ABL Facility | London Interbank Offered Rate (LIBOR) | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate					1.75%
ABL Facility | Base Rate | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate					0.25%
ABL Facility | Base Rate | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate					0.75%
6.125% Senior Notes due January 2029
Line of Credit Facility [Line Items]
Senior notes, aggregate principal amount		$ 500,000,000
Discount rate (as a percent)		6.125%
Debt instrument stated rate		6.125%				6.125%
Effective interest rate						6.33%
6.125% Senior Notes due January 2029 | Debt Instrument, Redemption, Period Five
Line of Credit Facility [Line Items]
Redemption price		100.00%
6.125% Senior Notes due January 2029 | Debt Instrument, Redemption, Period Six
Line of Credit Facility [Line Items]
Redemption price		106.125%
Redemption price, percentage of principal amount redeemed		40.00%
6.125% Senior Notes due January 2029 | Debt Instrument, Redemption, Period Seven
Line of Credit Facility [Line Items]
Redemption price		103.063%
6.125% Senior Notes due January 2029 | Debt Instrument, Redemption, Period Eight
Line of Credit Facility [Line Items]
Redemption price		101.531%
6.125% Senior Notes due January 2029 | Debt Instrument, Redemption, Period Nine
Line of Credit Facility [Line Items]
Redemption price		100.00%

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LONG-TERM DEBT -Schedule of long-term debt instruments (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)
Term Loan Facility
Debt Instrument [Line Items]
Interest rate	3.75%
Effective interest rate	4.02%
ABL Facility
Debt Instrument [Line Items]
Excess availability	$ 565,576
Revolving loans outstanding	0
Letters of credit outstanding	$ 40,257

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DERIVATIVES - Narrative (Details) $ in Thousands		12 Months Ended	25 Months Ended
	Apr. 15, 2021 USD ($) derivativeInstrument	Dec. 31, 2021 USD ($)	May 31, 2021	Dec. 31, 2020 USD ($)	May 31, 2019 USD ($)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of swap contracts terminated | derivativeInstrument	2
Number of swap contract entered | derivativeInstrument	2
Notional Amount		$ 1,500,000		$ 1,500,000
AOCI derivative gain		$ 800
Derivative, floor interest rate		0.50%
Fair value hedge assets		$ 700
Minimum
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, fixed interest rate		2.0369%
Maximum
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, fixed interest rate		2.034%
Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
AOCI derivative gain		$ 44,700
Forward Contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Loss on foreign currency fair value hedge derivatives		1,100
Interest rate swaps
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, term of contract			4 years
Derivative, notional amount					$ 1,500,000
Interest Rate Swap Three
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	$ 500,000				$ 500,000
Notional Amount		500,000		500,000
Interest Rate Swap One
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	500,000
Notional Amount		0		500,000
Interest Rate Swap Two
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Amount		0		$ 500,000
Interest Rate Swap Two | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	500,000
Interest Rate Swap Six
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Amount	250,000	(250,000)
Interest Rate Swap Seven
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Amount	250,000	(250,000)
Interest Rate Swap Four
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	750,000
Notional Amount		750,000
Interest Rate Swap Five
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	$ 750,000
Notional Amount		$ 750,000

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DERIVATIVES- Interest rate swaps (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Apr. 15, 2021	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Amount	$ 1,500,000		$ 1,500,000
Interest Rate Swap One
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fixed Rate Paid (Received)	2.157%
Notional Amount	$ 0		500,000
Interest Rate Swap Two
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fixed Rate Paid (Received)	2.156%
Notional Amount	$ 0		500,000
Interest Rate Swap Three
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fixed Rate Paid (Received)	2.168%
Notional Amount	$ 500,000		$ 500,000
Interest Rate Swap Four
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fixed Rate Paid (Received)	2.0369%
Notional Amount	$ 750,000
Interest Rate Swap Five
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fixed Rate Paid (Received)	2.034%
Notional Amount	$ 750,000
Interest Rate Swap Six
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fixed Rate Paid (Received)	(2.168%)
Notional Amount	$ (250,000)	$ 250,000
Interest Rate Swap Seven
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fixed Rate Paid (Received)	(2.168%)
Notional Amount	$ (250,000)	$ 250,000

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DERIVATIVES- Fair values of Derivatives on the Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative assets	$ 11,543	$ 0
Derivative liabilities	11,543	0
Not Designated as Hedging Instrument | Interest rate swaps | Other assets
Derivative [Line Items]
Derivative assets	11,543	0
Derivative liabilities	0	0
Not Designated as Hedging Instrument | Interest rate swaps | Other long-term liabilities
Derivative [Line Items]
Derivative assets	0	0
Derivative liabilities	11,543	0
Designated as Hedging Instrument
Derivative [Line Items]
Derivative assets	728	0
Derivative liabilities	41,406	75,770
Designated as Hedging Instrument | Interest rate swaps | Other long-term liabilities
Derivative [Line Items]
Derivative assets	0	0
Derivative liabilities	28,279	75,770
Designated as Hedging Instrument | Interest rate swaps | Other accrued expenses
Derivative [Line Items]
Derivative assets	0	0
Derivative liabilities	13,127	0
Designated as Hedging Instrument | Foreign currency hedges | Prepaid expenses and other
Derivative [Line Items]
Derivative assets	728	0
Derivative liabilities	$ 0	$ 0

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DERIVATIVES- Effect of derivatives on the consolidated statements of operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Derivative instruments, gain (loss)	$ 38,245	$ 24,198
Not Designated as Hedging Instrument | Interest rate swaps | Interest expense
Derivative [Line Items]
Derivative instruments, gain (loss)	21,164	0
Not Designated as Hedging Instrument | Foreign currency hedges | Cost of sales
Derivative [Line Items]
Derivative instruments, gain (loss)	1,083	0
Designated as Hedging Instrument | Interest rate swaps | Interest expense
Derivative [Line Items]
Derivative instruments, gain (loss)	$ 15,998	$ 24,198

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CD&R INVESTOR GROUP (Details) - USD ($) $ / shares in Units, $ in Thousands				1 Months Ended	12 Months Ended
	Dec. 11, 2017	Jul. 25, 2016	Jul. 18, 2016	Jan. 31, 2014	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule Of Cumulative Convertible Preferred Stock [Line Items]
Payments for repurchase of common stock					$ 0	$ 6,428	$ 0
Underwriter
Schedule Of Cumulative Convertible Preferred Stock [Line Items]
Stock issued during period, shares, new issues (in shares)		10,350,000
Stock issued during period, value, new issues		$ 160,100
CDR Fund VIII Investor Group
Schedule Of Cumulative Convertible Preferred Stock [Line Items]
Stock issued during period, shares, new issues (in shares)		9,000,000		8,500,000
Common stock, par value, new issues (in usd per share)		$ 16.15		$ 18.00
Additional number of shares issued (in shares)		1,350,000		1,275,000
Stock repurchased during period, shares (in shares)				1,150,000
Common stock repurchased (in shares)			2,900,000
Equity method investment, ownership percentage					48.80%	49.40%
CDR Fund VIII Investor Group | Secondary Offering
Schedule Of Cumulative Convertible Preferred Stock [Line Items]
Common stock repurchased (in shares)	1,150,000
Common stock offered (in shares)	7,150,000
Common stock price per share (in usd per share)	$ 19.36
Payments for repurchase of common stock	$ 22,300

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FAIR VALUE OF FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Fair Value of Financial Instruments Not Currently Recognized at Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Apr. 15, 2021	Dec. 31, 2020	Sep. 24, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated rate	6.125%
Long-term Debt	$ 3,036,843		$ 3,589,029
8.00% senior notes due April 2026
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated rate	8.00%	8.00%
Long-term Debt	$ 0		645,000
Long-term debt, fair value	$ 0		674,025
6.125% Senior Notes due January 2029
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated rate	6.125%			6.125%
Long-term Debt	$ 500,000		500,000
Long-term debt, fair value	531,900		530,000
ABL Facility
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term Debt	0
Cash Flow Revolver
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term Debt	0
Term Loan Facility
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term Debt	2,580,500		2,497,967
Long-term debt, fair value	$ 2,570,823		$ 2,485,477

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FAIR VALUE OF FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Schedule of Fair Value of Assets and Liabilities, By Type (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Assets:
Short-term investments in deferred compensation plan	$ 2,759	$ 2,333
Fair value hedge assets	700
Total assets	15,030	2,333
Liabilities:
Liabilities, recurring fair value measurements	55,708	78,109
Unrealized holding gain (loss)	200	(500)
Foreign currency hedges
Assets:
Fair value hedge assets	728
Not Designated as Hedging Instrument
Liabilities:
Derivative liability	11,543	0
Interest rate swaps
Assets:
Short-term investments in deferred compensation plan	11,543
Liabilities:
Liabilities, recurring fair value measurements	52,949	75,770
Interest rate swaps | Other noncurrent liabilities | Not Designated as Hedging Instrument
Liabilities:
Derivative liability	11,543	0
Pay Fixed Interest Rate Swap
Liabilities:
Derivative instrument, financing component, amount	41,400
Level 1
Assets:
Short-term investments in deferred compensation plan	2,608	2,180
Total assets	2,608	2,180
Liabilities:
Liabilities, recurring fair value measurements	0	0
Level 1 | Foreign currency hedges
Assets:
Fair value hedge assets	0
Level 1 | Interest rate swaps
Assets:
Short-term investments in deferred compensation plan	0
Liabilities:
Liabilities, recurring fair value measurements	0	0
Level 2
Assets:
Short-term investments in deferred compensation plan	151	153
Total assets	12,422	153
Liabilities:
Liabilities, recurring fair value measurements	55,708	78,109
Level 2 | Foreign currency hedges
Assets:
Fair value hedge assets	728
Level 2 | Interest rate swaps
Assets:
Short-term investments in deferred compensation plan	11,543
Liabilities:
Liabilities, recurring fair value measurements	52,949	75,770
Level 3
Assets:
Short-term investments in deferred compensation plan	0	0
Total assets	0	0
Liabilities:
Liabilities, recurring fair value measurements	0	0
Level 3 | Foreign currency hedges
Assets:
Fair value hedge assets	0
Level 3 | Interest rate swaps
Assets:
Short-term investments in deferred compensation plan	0
Liabilities:
Liabilities, recurring fair value measurements	0	0
Deferred Compensation Plan
Liabilities:
Liabilities, recurring fair value measurements	2,759	2,339
Deferred Compensation Plan | Level 1
Liabilities:
Liabilities, recurring fair value measurements	0	0
Deferred Compensation Plan | Level 2
Liabilities:
Liabilities, recurring fair value measurements	2,759	2,339
Deferred Compensation Plan | Level 3
Liabilities:
Liabilities, recurring fair value measurements	0	0
Money market
Assets:
Short-term investments in deferred compensation plan	24	349
Money market | Level 1
Assets:
Short-term investments in deferred compensation plan	24	349
Money market | Level 2
Assets:
Short-term investments in deferred compensation plan	0	0
Money market | Level 3
Assets:
Short-term investments in deferred compensation plan	0	0
Mutual funds – Growth
Assets:
Short-term investments in deferred compensation plan	557	487
Mutual funds – Growth | Level 1
Assets:
Short-term investments in deferred compensation plan	557	487
Mutual funds – Growth | Level 2
Assets:
Short-term investments in deferred compensation plan	0	0
Mutual funds – Growth | Level 3
Assets:
Short-term investments in deferred compensation plan	0	0
Mutual funds – Blend
Assets:
Short-term investments in deferred compensation plan	1,560	1,006
Mutual funds – Blend | Level 1
Assets:
Short-term investments in deferred compensation plan	1,560	1,006
Mutual funds – Blend | Level 2
Assets:
Short-term investments in deferred compensation plan	0	0
Mutual funds – Blend | Level 3
Assets:
Short-term investments in deferred compensation plan	0	0
Mutual funds – Foreign blend
Assets:
Short-term investments in deferred compensation plan	467	338
Mutual funds – Foreign blend | Level 1
Assets:
Short-term investments in deferred compensation plan	467	338
Mutual funds – Foreign blend | Level 2
Assets:
Short-term investments in deferred compensation plan	0	0
Mutual funds – Foreign blend | Level 3
Assets:
Short-term investments in deferred compensation plan	0	0
Mutual funds – Fixed income
Assets:
Short-term investments in deferred compensation plan	151	153
Mutual funds – Fixed income | Level 1
Assets:
Short-term investments in deferred compensation plan	0	0
Mutual funds – Fixed income | Level 2
Assets:
Short-term investments in deferred compensation plan	151	153
Mutual funds – Fixed income | Level 3
Assets:
Short-term investments in deferred compensation plan	$ 0	$ 0

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INCOME TAXES - Schedule of Income Before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Contingency [Line Items]
Income (loss) before income taxes	$ 901,827	$ (477,215)	$ (10,615)
Domestic
Income Tax Contingency [Line Items]
Domestic	818,635	(420,014)	(12,016)
Foreign
Income Tax Contingency [Line Items]
Foreign	$ 83,192	$ (57,201)	$ 1,401

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INCOME TAXES - Schedule of Components of Income Tax Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current:
Federal	$ 219,379	$ (1,343)	$ (311)
State	64,509	7,316	7,219
Foreign	11,590	3,909	3,952
Total current	295,478	9,882	10,860
Deferred:
Federal	(43,980)	82	205
State	(18,363)	1,462	1,875
Foreign	2,833	(5,863)	(8,165)
Total deferred	(59,510)	(4,319)	(6,085)
Total provision (benefit)	$ 235,968	$ 5,563	$ 4,775

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INCOME TAXES - Schedule of Effective Income Tax Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Federal income tax at statutory rate	$ 189,384	$ (100,215)	$ (2,229)
State income taxes	34,071	7,482	8,059
Non-deductible expenses	180	217	62
Gain on divestitures	9,725	0	0
Compensation related expenses	2,573	3,630	3,518
Meals and entertainment	552	465	1,265
Tax credits	(14,285)	(3,343)	(7,179)
Foreign income tax	3,413	(2,820)	(884)
Employee fringe benefits	480	443	474
Unrecognized tax benefits	5,686	(157)	(581)
Reversal of valuation allowance	0	0	(3,981)
Global intangible low-taxed income	8,248	4,317	4,398
Goodwill impairment	0	94,793	0
Transaction costs	0	0	1,903
Other	(4,059)	751	(50)
Total provision (benefit)	$ 235,968	$ 5,563	$ 4,775

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INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Schedule Of Income Tax [Line Items]
Goodwill impairment		$ 0	$ 503,171	$ 0
Goodwill impairment with no tax basis			438,700
Operating loss carryforwards	$ 41,700	41,700
Deferred tax assets, valuation allowance	15,634	15,634	11,996	$ 10,347	$ 19,497
Unrecognized tax benefits, including interest and penalties	17,400	17,400
Accrued interest and penalties related to uncertain tax positions	2,600	2,600
Unrecognized tax benefits that would impact effective tax rate	14,800	14,800
Amount of employer side social security payments deferred			$ 19,900
Payment of deferred social security taxes	10,000
Deferred social security payments recorded in current liabilities		10,000
Federal
Schedule Of Income Tax [Line Items]
Operating loss carryforwards	20,800	20,800
State
Schedule Of Income Tax [Line Items]
Operating loss carryforwards	13,300	13,300
Foreign tax authority
Schedule Of Income Tax [Line Items]
Operating loss carryforwards	$ 7,600	$ 7,600

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INCOME TAXES - Tax Effect of Temporary Differences (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Inventory obsolescence	$ 4,363	$ 4,369
Bad debt reserve	2,511	2,302
Accrued and deferred compensation	13,136	7,522
Accrued insurance reserves	7,895	8,429
Net operating loss and tax credit carryover	41,732	61,169
Pension	1,148	4,576
Leases	72,812	68,589
Warranty	44,925	44,969
Other reserves	52,635	48,258
Total deferred tax assets	241,157	250,183
Less valuation allowance	(15,634)	(11,996)	$ (10,347)	$ (19,497)
Net deferred tax assets	225,523	238,187
Deferred tax liabilities:
Depreciation and amortization	(388,730)	(424,254)
Stock basis	(12,733)	(12,826)
Leases	(72,098)	(66,962)
Other	(2,296)	(2,070)
Total deferred tax liabilities	(475,857)	(506,112)
Total deferred tax liability, net	$ (250,334)	$ (267,925)

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INCOME TAXES - Rollforward of Valuation Allowance on Deferred Taxes Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	$ 11,996	$ 10,347	$ 19,497
Additions (reductions)	3,638	1,649	(9,150)
Ending balance	$ 15,634	$ 11,996	$ 10,347

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INCOME TAXES - Rollforward of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits at beginning of year	$ 9,403	$ 10,107
Additions based on tax positions related to current year	6,037	194
Reductions for tax positions of prior years	15
Reductions for tax positions of prior years		(39)
Reductions resulting from expiration of statute of limitations	(610)	(859)
Unrecognized tax benefits at end of year	$ 14,845	$ 9,403

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ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	$ 1,176,339	$ 441,805	$ 935,318	$ 959,982
Foreign exchange translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	22,741	16,147
Unrealized loss on derivative instruments, net of tax benefit of $5,549 and $17,612, respectively
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(23,407)	(58,625)
Unrealized loss on derivative instruments, tax benefit	5,549	17,612
Defined benefit pension plan actuarial losses, net of tax benefit of $1,854 and $5,049, respectively
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(4,946)	(9,039)
Defined benefit pension plan actuarial losses, tax benefit	1,854	5,049
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	$ (5,612)	$ (51,517)	$ (32,398)	$ (10,813)

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STOCK REPURCHASE PROGRAM - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Mar. 07, 2018	Oct. 10, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase of treasury stock	$ 0	$ 6,428,000	$ 0
Stock repurchase program, remaining authorized repurchase amount	$ 49,100,000
Retirement of treasury (in shares)	600,000	1,300,000	300,000
Treasury Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Treasury stock purchases (in shares)	612,011	1,298,253	256,857
Retirement of treasury (in shares)	612,011	1,298,665	306,531
Treasury stock, retired shares previously withheld or repurchased, amount	$ 9,700,000	$ 8,000,000	$ 2,400,000
Additional Paid-In Capital
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Treasury stock, retired shares previously withheld or repurchased, amount	9,700,000	$ 8,000,000	$ 2,400,000
2017 Stock Repurchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase program, authorized amount					$ 50,000,000
2018 Stock Repurchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase program, authorized amount				$ 50,000,000
Stock Repurchase Programs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase program, authorized amount	$ 100,000,000
Treasury stock purchases (in shares)	0	1,100,000	0
Purchase of treasury stock		$ 6,400,000
Retirement of treasury (in shares)		1,100,000

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STOCK REPURCHASE PROGRAM - Change in Treasury Common Stock, At Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Treasury Stock, Shares [Abstract]
Beginning balance (in shares)	25,332
Retirements (in shares)	(600,000)	(1,300,000)	(300,000)
Ending balance (in shares)	21,071	25,332
Treasury Stock, Value [Abstract]
Beginning balance	$ 510
Purchases	9,685	$ 7,994	$ 1,934
Retirements	0	0	0
Deferred compensation obligation	0	0	$ 0
Ending balance	$ 424	$ 510
Treasury Stock
Treasury Stock, Shares [Abstract]
Beginning balance (in shares)	25,000	56,000	111,000
Treasury stock purchases (in shares)	612,011	1,298,253	256,857
Retirements (in shares)	(612,011)	(1,298,665)	(306,531)
Deferred compensation obligation (in shares)	(4,261)	(29,769)	(5,712)
Ending balance (in shares)	21,000	25,000	56,000
Treasury Stock, Value [Abstract]
Beginning balance	$ 510	$ 1,103	$ 1,678
Purchases	9,685	7,994	1,934
Retirements	(9,685)	(7,995)	(2,423)
Deferred compensation obligation	(86)	(592)	(86)
Ending balance	$ 424	$ 510	$ 1,103

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EMPLOYEE BENEFIT PLANS - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Percentage of employee contribution	5.00%
Allocated share-based compensation expense, net of tax	$ 16,300	$ 16,200	$ 13,300
Defer percentage to officers and key employees salary	80.00%
Defer percentage to officers and key employees bonus	90.00%
Defer percentage to directors	100.00%
Deferred compensation arrangement with individual, requisite service period	3 years
Deferred compensation liability, current and noncurrent	$ 2,800	2,300
Deferred compensation plan assets	2,800	2,300
Unrecognized actuarial gains (losses)	$ 4,093	$ (1,092)	$ (1,984)
Minimum
Defined Benefit Plan Disclosure [Line Items]
Matching contributions percentage	50.00%
Maximum
Defined Benefit Plan Disclosure [Line Items]
Matching contributions percentage	100.00%
OPEB Plans
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate (as a percent)	6.00%
Health care cost trend rate (as a percent)	4.00%
Defined benefit plan, expected future benefit payments, next rolling twelve months	$ 500
RCC Pension Plan | Equity income funds
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, target plan asset allocations (as a percent)	30.00%
RCC Pension Plan | Fixed Income
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, target plan asset allocations (as a percent)	70.00%
Ply Gem Plan | Equity income funds
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, target plan asset allocations (as a percent)	30.00%
Ply Gem Plan | Fixed Income
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, target plan asset allocations (as a percent)	70.00%
MW Plan | Equity income funds
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, target plan asset allocations (as a percent)	50.00%
MW Plan | Fixed Income
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, target plan asset allocations (as a percent)	50.00%
Coil Coating Benefit Plan | OPEB Plans
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, minimum annual employee contribution, percent	0.00%
Defined benefit plan, maximum annual contributions per retiree, percent	25.00%
Coil Coating Benefit Plan | Defined Benefit Plans | Fixed Income
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, target plan asset allocations (as a percent)	100.00%

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EMPLOYEE BENEFIT PLANS - Schedule of Assumptions Used to Determine Benefit Obligation (Details)	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.85%	2.50%
OPEB Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.85%	2.45%

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EMPLOYEE BENEFIT PLANS - Schedule of Assumptions Used to Determine Net Periodic Benefit Cost (Income) (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.50%	3.30%
Expected return on plan assets	5.95%	5.87%
OPEB Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.45%	3.20%

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EMPLOYEE BENEFIT PLANS - Schedule of Changes in Projected Benefit Obligation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plans
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation – beginning of fiscal year	$ 104,934	$ 101,148
Service cost	54	46	$ 42
Interest cost	2,542	3,231	3,897
Benefits paid	(6,641)	(6,883)
Actuarial (gains) losses	(3,755)	7,392
Benefit obligation at end of period	97,134	104,934	101,148
Accumulated benefit obligation at end of period	97,134	104,934
OPEB Plans
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation – beginning of fiscal year	7,575	7,778
Service cost	17	17	22
Interest cost	178	237	262
Benefits paid	(985)	(661)
Actuarial (gains) losses	(283)	204
Benefit obligation at end of period	$ 6,502	$ 7,575	$ 7,778

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EMPLOYEE BENEFIT PLANS - Schedule of Changes in Plan Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Funded status at end of period	$ (3,279)	$ (15,776)
Defined Benefit Plans
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of assets at beginning of period	94,215	86,105
Actual return on plan assets	8,162	10,574
Company contributions	3,218	4,419
Benefits paid	(6,641)	(6,883)
Fair value of assets at end of period	98,954	94,215
Funded status at end of period	1,820	(10,719)
Noncurrent assets	5,098	5,056
Current liabilities	0	0
Noncurrent liabilities	(3,278)	(15,775)
Assets (liabilities) recognized in consolidated balance sheets	1,820	(10,719)
OPEB Plans
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of assets at beginning of period	0
Actual return on plan assets	0	0
Company contributions	985	661
Benefits paid	(985)	(661)
Fair value of assets at end of period	0	0
Funded status at end of period	(6,502)	(7,575)
Noncurrent assets	0	0
Current liabilities	(546)	(656)
Noncurrent liabilities	(5,956)	(6,919)
Assets (liabilities) recognized in consolidated balance sheets	$ (6,502)	$ (7,575)

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EMPLOYEE BENEFIT PLANS - Schedule of Changes in Funded Status (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Retirement Benefits [Abstract]
Projected benefit obligations	$ 46,372	$ 90,267
Fair value of plan assets	43,093	74,491
Funded status	$ (3,279)	$ (15,776)

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EMPLOYEE BENEFIT PLANS - Schedule of Weighted Average Assets Allocation by Assets Category (Details) - Defined Benefit Plans	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, actual plan asset allocations	100.00%	100.00%
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, actual plan asset allocations	31.00%	60.00%
Debt securities
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, actual plan asset allocations	67.00%	34.00%
Real estate
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, actual plan asset allocations	2.00%	6.00%

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EMPLOYEE BENEFIT PLANS - Schedule of Fair Value of Separate Accounts by Assets Category (Details) - Defined Benefit Plans - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Plan assets	$ 98,954	$ 94,215	$ 86,105
Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets	45,445	74,492
Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets	53,509	19,723
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Plan assets	20	48
Cash and cash equivalents | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets	20	48
Cash and cash equivalents | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets	0	0
Growth funds
Defined Benefit Plan Disclosure [Line Items]
Plan assets	6,649	11,677
Growth funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets	6,649	11,677
Growth funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets	0	0
Real estate funds
Defined Benefit Plan Disclosure [Line Items]
Plan assets	2,072	5,966
Real estate funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets	2,072	5,966
Real estate funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets	0	0
Equity income funds
Defined Benefit Plan Disclosure [Line Items]
Plan assets	6,197	9,031
Equity income funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets	6,197	9,031
Equity income funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets	0	0
Index funds
Defined Benefit Plan Disclosure [Line Items]
Plan assets	12,642	26,364
Index funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets	12,642	26,364
Index funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets	0	0
International equity funds
Defined Benefit Plan Disclosure [Line Items]
Plan assets	4,883	8,844
International equity funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets	4,883	8,844
International equity funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets	0	0
Fixed income funds
Defined Benefit Plan Disclosure [Line Items]
Plan assets	66,491	32,285
Fixed income funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets	12,982	12,562
Fixed income funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets	$ 53,509	$ 19,723

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EMPLOYEE BENEFIT PLANS - Schedule of Net Periodic Benefit Cost (Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 54	$ 46	$ 42
Interest cost	2,542	3,231	3,897
Expected return on assets	(5,439)	(4,958)	(4,935)
Amortization of prior service cost	65	62	58
Amortization of loss	416	433	1,313
Net periodic benefit cost (income)	(2,362)	(1,186)	375
OPEB Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	17	17	22
Interest cost	178	237	262
Amortization of loss	70	108	0
Net periodic benefit cost (income)	$ 265	$ 362	$ 284

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EMPLOYEE BENEFIT PLANS - Schedule of Amounts in AOCI, Not Yet Recognized (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Unrecognized actuarial loss	$ 5,450	$ 12,345
Unrecognized prior service cost	0	65
Total	5,450	12,410
OPEB Plans
Defined Benefit Plan Disclosure [Line Items]
Unrecognized actuarial loss	1,350	1,703
Unrecognized prior service cost	0	0
Total	$ 1,350	$ 1,703

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EMPLOYEE BENEFIT PLANS - Schedule of Change in Plan Assets and Benefit Obligations Recognized in OCI (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	$ (6,479)	$ 1,777	$ (315)
Amortization of net actuarial loss	(416)	(433)	(1,313)
Amortization of prior service cost	(65)	(63)	(58)
Total recognized in other comprehensive income (loss)	(6,960)	1,281	(1,686)
OPEB Plans
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	(283)	204	1,367
Amortization of net actuarial loss	(70)	(108)	0
Total recognized in other comprehensive income (loss)	$ (353)	$ 96	$ 1,367

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EMPLOYEE BENEFIT PLANS - Schedule of Expected Benefit Payments (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
2022	$ 6,554
2023	6,522
2024	6,417
2025	6,337
2026	6,268
2027 - 2031	29,529
OPEB Plans
Defined Benefit Plan Disclosure [Line Items]
2022	554
2023	539
2024	485
2025	463
2026	391
2027 - 2031	$ 1,923

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SEGMENT INFORMATION - Schedule of Segment Reporting Information by Segment (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) segment	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment	3
Total net sales	$ 5,583,137	$ 4,617,369	$ 4,889,747
Income (loss) from operations	1,137,245	(266,506)	214,736
Unallocated other expense, net	(235,418)	(210,709)	(225,351)
Income (loss) before income taxes	901,827	(477,215)	(10,615)
Depreciation and amortization	292,901	284,602	263,764
Capital expenditures	114,715	81,851	121,085
Property, plant and equipment, net	612,295	631,821
Total assets	5,827,460	5,478,490
Operating Segments | Windows
Segment Reporting Information [Line Items]
Total net sales	2,322,277	1,889,625	1,930,447
Income (loss) from operations	100,725	(223,646)	92,538
Depreciation and amortization	134,626	121,519	94,737
Capital expenditures	49,001	22,197	43,408
Property, plant and equipment, net	251,627	223,206
Total assets	2,223,098	1,717,032
Operating Segments | Siding
Segment Reporting Information [Line Items]
Total net sales	1,364,080	1,141,946	1,111,407
Income (loss) from operations	137,772	(61,930)	66,273
Depreciation and amortization	116,660	113,737	121,004
Capital expenditures	33,198	28,558	22,695
Property, plant and equipment, net	155,346	159,761
Total assets	2,060,275	2,123,615
Operating Segments | Commercial
Segment Reporting Information [Line Items]
Total net sales	1,896,780	1,585,798	1,847,893
Income (loss) from operations	1,104,335	159,586	201,073
Depreciation and amortization	36,282	45,213	44,550
Capital expenditures	16,934	26,833	51,144
Property, plant and equipment, net	174,440	227,391
Total assets	1,073,264	890,380
Corporate
Segment Reporting Information [Line Items]
Income (loss) from operations	(205,587)	(140,516)	(145,148)
Depreciation and amortization	5,333	4,133	3,473
Capital expenditures	15,582	4,263	$ 3,838
Property, plant and equipment, net	30,882	21,463
Total assets	$ 470,823	$ 747,463

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SEGMENT INFORMATION - Schedule of Disclosure on Geographic Areas (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Total sales:
Total net sales	$ 5,583,137	$ 4,617,369	$ 4,889,747
Long-lived assets:
Total long-lived assets	3,494,986	3,411,154
United States of America
Total sales:
Total net sales	5,132,085	4,304,559	4,526,385
Long-lived assets:
Total long-lived assets	3,213,052	3,107,027
Canada
Total sales:
Total net sales	422,867	305,780	340,250
Long-lived assets:
Total long-lived assets	270,752	292,503
Costa Rica
Long-lived assets:
Total long-lived assets	324	189
Mexico
Total sales:
Total net sales	9,417	3,093	3,381
Long-lived assets:
Total long-lived assets	10,858	11,435
All other
Total sales:
Total net sales	$ 18,768	$ 3,937	$ 19,731

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CONTINGENCIES (Details) $ in Millions					12 Months Ended
	Aug. 25, 2021 USD ($) defendant	May 19, 2021	Feb. 10, 2020 defendant	Apr. 11, 2019 defendant	Dec. 31, 2020 USD ($)	Dec. 31, 2021 USD ($)	May 31, 2021 phase
Loss Contingencies [Line Items]
Public comment period duration		30 days
Number of field sampling phases completed | phase							2
Recovery From Countervailing Duty Tariff Proceedings
Loss Contingencies [Line Items]
Amount sought by company					$ 4.1
Countervailing Duty
Loss Contingencies [Line Items]
Tariff rate for imports					0.00%
Antidumping
Loss Contingencies [Line Items]
Tariff rate for imports					8.47%
RCRA Facility Investigation
Loss Contingencies [Line Items]
Liability accrual						$ 4.5
PCE/TCE Northeast Contamination Site
Loss Contingencies [Line Items]
Liability accrual						4.4
Aurora Plastics LLC vs. Atrium
Loss Contingencies [Line Items]
Liability accrual						3.9
Voigt vs. CD&R case
Loss Contingencies [Line Items]
Number of defendants | defendant	8			12
Number of defendants with charges dismissed | defendant			4
Litigation settlement amount awarded	$ 100.0
Percentage of settlement sought for legal expenses	23.50%
Current Liabilities | RCRA Facility Investigation
Loss Contingencies [Line Items]
Liability accrual						1.0
Other long-term liabilities | RCRA Facility Investigation
Loss Contingencies [Line Items]
Liability accrual						$ 3.5