CERTIFICATE OF AMENDMENT

TO THE

CERTIFICATE OF INCORPORATION

OF

GIBRALTAR INDUSTRIES, INC.

Gibraltar Industries, Inc., a corporation organized and existing under the General Corporation Law of the State of Delaware (the “Corporation”), does hereby certify:

FIRST: That at a meeting of the Board of Directors of the Corporation, resolutions were duly adopted setting forth a proposed amendment of the Certificate of Incorporation of the Corporation, declaring said amendment to be advisable. The resolution setting forth the proposed amendment is as follows:

RESOLVED, that the Certificate of Incorporation of the Corporation is hereby amended by adding a new Article FIFTEENTH to read as follows:

“FIFTEENTH: Unless the Corporation consents in writing to the selection of an alternative forum, the Court of Chancery of the State of Delaware (or, if the Court of Chancery does not have jurisdiction, a state court located within the State of Delaware or, if no state court located within the State of Delaware has jurisdiction, the federal district court for the District of Delaware) shall, to the fullest extent permitted by law, be the sole and exclusive forum for: (a) any derivative action or proceeding brought on behalf of the Corporation; (b) any action asserting a claim for breach of a fiduciary duty owed by any director, officer, employee, agent or stockholder of the Corporation to the Corporation or the Corporation’s stockholders; (c) any action asserting a claim arising pursuant to any provision of the General Corporation Law of the State of Delaware, this Certificate of Incorporation or the Corporation’s By-Laws (as either may be amended re restated) or as to which the General Corporation Law of the State of Delaware confers jurisdiction on the Court of Chancery of the State of Delaware; or (d) any action asserting a claim governed by the internal affairs doctrine; in each case, subject to said court having personal jurisdiction over the indispensable parties named as defendants therein. Unless the Corporation consents in writing to the selection of an alternative forum, the federal district courts of the United States of America shall be the exclusive forum for the resolution of any complaint asserting a cause of action arising under the Securities Act of 1933, as amended. If any action the subject matter of which is within the scope of this Article FIFTEENTH is filed in a court other than a court located within the State of Delaware (a “Foreign Action”) in the name of any stockholder, such stockholder shall be deemed to have consented to: (x) the personal jurisdiction of the state and federal courts located within the State of Delaware in connection with any action brought in any such court to enforce this Article FIFTEENTH (an “Enforcement Action”), and (y) having service of process made upon such stockholder in any such Enforcement Action by service upon such stockholder’s counsel in the Foreign Action as agent for such stockholder.”

SECOND: That thereafter, an annual meeting of the stockholders of the Corporation was held, at which meeting said amendment was approved.

THIRD: That the aforesaid amendment was duly adopted in accordance with the provisions of Section 242 of the General Corporation Law of the State of Delaware.

FOURTH: That this Certificate of Amendment of the Certificate of Incorporation shall be effective upon filing.

IN WITNESS WHEREOF, Gibraltar Industries, Inc. has caused this certificate to be executed and attested this 3rd day of May, 2023.

GIBRALTAR INDUSTRIES, INC.

By: /s/ Timothy F. Murphy

Timothy F. Murphy

Senior Vice President and

Chief Financial Officer