Exhibit 21.1

State or Other

Jurisdiction

Under the Laws of

Subsidiaries of Owens Corning (12/31/2014)    Which Organized

American Rockwool, Inc.                                        North Carolina

CDC Corporation                                            Wisconsin

Crown Mfg. Inc.                                            Ontario

Dutch OC Cooperatief Invest U.A.                                    The Netherlands

Engineered Pipe Systems, Inc.                                    Delaware

EPS Holding AS                                            Norway

Eric Company                                            Delaware

European Owens Corning Fiberglas SPRL                                Belgium

Instalaciones Especializadas en Confort Termoacustico y Ampliacion, S. de R.L. de C.V            Mexico

Inversiones Owens Corning Chile Holdings Limitada                         Chile

Insul-Trade, LLC                                            Indiana

IP Owens Corning I, S. de R.L. de C.V.                                 Mexico

IPM Inc.                                                Delaware

Norske EPS BOT AS                                        Norway

Northern Elastomeric, Inc.                                     New Hampshire

OC Canada Finance Inc.                                        Canada

OC Canada Holdings Company                                    Nova Scotia

OC Canada Holdings General Partnership                                Delaware

OC Celfortec Company                                        Nova Scotia

OC Fabrics (Changzhou) Co., Ltd.                                    China

OC Latin American Holdings GmbH                                 Austria

OC NL Invest Cooperatief U.A.                                    The Netherlands

OC PRO CV                                            The Netherlands

OCCV1, Inc.                                            Delaware

OCCV2, LLC                                            Delaware

OCV (Thailand) Company Limited                                    Thailand

OCV Chambéry France                                        France

OCV Chambéry International                                    France

OCV Distribution ANZ Pty-Limited                                Australia

OCV Fabrics UK Ltd.                                        United Kingdom

OCV Finance, LLC                                        Delaware

OCV Intellectual Capital, LLC                                    Delaware

OCV Italia Srl                                            Italy

OCV Mexico S. de R.L. de C.V.                                    Mexico

OCV Reinforcements (Hangzhou) Co., Ltd.                                China

OCV Reinforcements Alcala Spain, S.L.                                Spain

OCV Servicios Mexico, S.A. de C.V.                                Mexico

OCV Steklovolokno OAO                                        Russia

Owens Corning (China) Investment Company Limited                         China

Owens Corning (Guangzhou) Fiberglas Co., Ltd.                            China

Owens Corning (Nanjing) Building Materials Co., Ltd.                         China

Owens-Corning (Shanghai) Fiberglas Co., Ltd.                            China

Owens Corning (Singapore) Pte Ltd                                Singapore

Owens Corning (Tianjin) Building Materials Co., Ltd.                        China

Owens Corning (Xi’an) Building Materials Co., Ltd.                            China

Owens Corning Alloy Canada GP Inc.                                Canada

Owens Corning Alloy Canada LP                                    Manitoba

Owens Corning Argentina Sociedad de Responsabilidad Limitada                    Argentina

Owens Corning (Australia) Pty Limited                                Australia

Owens Corning Automotive (UK) Ltd.                                United Kingdom

Owens Corning Composites (Beijing) Co., Ltd.                            China

Owens Corning BM (Korea), Ltd                                    Korea

Owens-Corning Britinvest Limited                                    United Kingdom

Owens Corning Canada GP Inc.                                    Canada

Owens Corning Canada Holdings B.V.                                The Netherlands

Owens Corning Canada LP                                    Manitoba        

Owens Corning Cayman (China) Holdings                                Cayman Islands

Owens-Corning Cayman Limited                                    Cayman Islands

Owens Corning Celfortec Canada GP Inc.                                Canada

Owens Corning Celfortec LP                                    Manitoba

Owens Corning Composites (China) Co., Ltd.                            China

Owens Corning Composite Materials, LLC                                Delaware

Owens Corning Composite Materials Canada GP Inc.                            Nova Scotia

Owens Corning Composite Materials Canada LP                            Manitoba

Owens Corning DC Pension Plan Limited                                United Kingdom

Owens Corning Construction Services, LLC                                Delaware

Owens Corning Elaminator Insulation Systems, LLC                         Delaware

Owens Corning Enterprise (India) Pvt. Ltd.                                India

Owens Corning Fabwel, LLC                                    Delaware

Owens Corning Fiberglas A.S. Limitada                                Brazil

Owens Corning Fiberglas S.R.L.                                    Uruguay

Owens-Corning Fiberglas Deutschland GmbH                            Germany

Owens Corning Fiberglas Espana, SL                                Spain

Owens Corning Fiberglas France                                     France

Owens-Corning Fiberglas (U.K.) Pension Plan Ltd.                            United Kingdom

Owens Corning Financial Services ULC                                Nova Scotia

Owens Corning Foam Insulation, LLC                                Delaware

Owens Corning Franchising, LLC                                    Delaware

Owens-Corning Funding Corporation                                Delaware

Owens Corning GlassMetal Services (Suzhou) Co., Ltd.                        China

Owens Corning Holdings 1 CV                                    The Netherlands

Owens Corning Holdings 3 CV                                    The Netherlands

Owens Corning Holdings 4 CV                                    The Netherlands

Owens Corning Holdings 5 CV                                    The Netherlands

Owens Corning Holdings Holland B.V.                                 The Netherlands

Owens Corning HOMExperts, Inc.                                    Delaware

Owens Corning Hong Kong Limited                                Hong Kong

Owens Corning HT, Inc.                                        Delaware

Owens-Corning (India) Private Limited                                India

Owens Corning Industries (India) Private Limited                            India

Owens Corning Insulating Systems, LLC                                Delaware

Owens Corning Insulating Systems Canada GP Inc.                            Canada

Owens Corning Insulating Systems Canada LP                            Manitoba

Owens Corning Intellectual Capital, LLC                                Delaware    

Owens Corning International Holdings C.V.                                The Netherlands

Owens Corning Japan LLC                                     Japan

Owens Corning Japanhold B.V.                                    The Netherlands

Owens Corning Kohold B.V.                                    The Netherlands

Owens Corning Korea                                        Korea

Owens Corning Mexico, S. de R.L. de C.V.                                Mexico

Owens Corning Mineral Wool, LLC                                Delaware

Owens Corning Non-Woven Technology, LLC                            Delaware

Owens Corning Receivables LLC                                    Delaware

Owens Corning Remodeling Canada GP Inc.                                Canada

Owens Corning Remodeling Canada LP                                Manitoba

Owens Corning Remodeling Systems, LLC                                Delaware

Owens Corning Roofing and Asphalt, LLC                                Delaware

Owens Corning Sales, LLC                                    Delaware

Owens Corning Science and Technology, LLC                            Delaware

Owens Corning Sunrooms Franchising, LLC                                Delaware

Owens Corning Supplementary Pension Plan Limited                            United Kingdom

Owens-Corning Sweden AB                                    Sweden

Owens Corning Technical Fabrics, LLC                                Delaware

Owens Corning US Holdings, LLC                                    Delaware

Owens-Corning Veil Netherlands B.V.                                The Netherlands

Owens-Corning Veil U.K. Ltd.                                    United Kingdom

Servicios Transaco Limitada                                    Chile

Soltech, Inc.                                            Kentucky

Tecnologia Owens Corning I, S. de R.L. de C.V.                            Mexico

TF Holding Corp.                                            Delaware

Thermafiber, Inc.                                            Delaware

Transandina de Comercio S.A.                                     Chile