• GAF

  Founded in 1886, GAF is the largest roofing manufacturer in North America. The Company is an operating subsidiary of Standard Industries. GAF products include a comprehensive portfolio of roofing systems for residential and commercial properties, which are supported by an extensive national network of factory-certified contractors.

• SOPREMA, Inc.

  SOPREMA offers a comprehensive line of commercial roofing, waterproofing, wall protection, and civil engineering solutions combining superior products and systems with decades of proven performance. Our solutions include industry leading SBS-modified bitumen membranes, polymeric PMMA/PMA liquid applied membranes and synthetic single ply PVC membranes.

• GAF

• SOPREMA, Inc.

• MBTechnology

• ABC Supply Co., Inc.

• APOC/ Div. of Gardner-Gibson, Inc.

• Alco-NVC

• Atlas Minerals & Chemicals, Inc.

• Barrett Company

• Bray Sheet Metal Co.

• Building Systems Co.

• Cleasby Manufacturing Inc.

• Company 2001, Inc.

• Consolidated Fiber Glass Products Co. (Conglas)

• D E L Roofing Equipment & Supplies Ltd.

• EMCO Building Products

• Edward Sider and Co.

• Fields Company LLC

• Fixallroofs LLC

• GMX, Inc.

• Gardner-Gibson, Inc.

• Garland Canada Inc.

• Gemite Products Inc.

• Globe Building Materials

• Haag Engineering

• Hal Industries Inc.

• Harvey Building Products

• Honeywell Commercial Roofing Systems

• Hyload Roofing Systems

• ICA

• IKO

• ISG Resources, Inc.

• ISP Minerals Products, Inc.

• Iko Industries Ltd.

• International EPDM Rubber Roofing Systems, Inc.

• International Fibreboard

• Karnak Corporation

• Koch Materials Company

• Koppers Industries, Inc.

• Leatherback Industries

• Lime Crest Corp.

• Loadmaster Systems

• MacDermot Studio

• Malarkey Roofing Products

• Monsey Bakor Inc.

• Murray Sheet Metal Co.

• NEI Advanced Composite Technology (NEI, Inc.)

• Polyglass, USA

• Pro-Seal Products

• Reed Minerals/A Harsco Corp.

• Reichel & Drews Inc.

• Republic Powdered Metals, Inc.

• S&K Associates

• Schuller Mats & Reinforcements

• Shell Chemical Co.

• Smartroof

• Talbot Roofing

• Tamko Roofing Products

• Tarco

• Texas Refinery Corp.

• The Garland Company UK Ltd.

• The Garland Company, Inc.

• Thermo Manufacturing

• Thermo Manufacturing, Inc.

• Thermo Materials

• Thermoflo Equipment Company, Inc.

• US Intec, a divison of BMCA

• Urecoats Industries Inc.

• Wall Firma