• Garden State Brickface and Siding

• ABC Supply Co., Inc.

• ABCO-American Inc.

• ABT Building Products Corp.

• ADVANTAGE Buildings & Exteriors

• ALSCO Metals Corporation

• Allsco Building Products Ltd

• Allsco Building Products Ltd.

• American Vinyl

• Amerimax Building Products, Inc.

• Architectural Roofing & Siding, Inc.

• Atlanta Metal Products, Inc.

• Atlantis Plastics, Inc.

• Atlas Fence Company, Inc.

• BHP Steel Building Products USA

• Barkhurst Construction

• Bartile Roofs

• Beach Sheet Metal Co., Inc.

• Benchmark Architectural Systems, Inc.

• Berger Brothers Company

• Bethlehem Steel Corporation

• Bhoruka Aluminium Ltd.

• Bird Vinyl Products Ltd.

• Bloomsburg Metal Co.

• COASTAL METAL SERVICE

• CRA, California Redwood Association

• California Cedar Products Company

• Cameron Ashley Building Products

• Cameron Ashley Building Products

• Cape Cod Finished Wood Siding

• Capital City Sheet Metal

• Cedar Shake & Shingle Bureau

• Cedar Valley Shingle Systems, Inc.

• Cement Board Fabricators

• Cemplank

• CertainTeed Corporation

• CopperCraft

• Corrugated Metals Inc.

• Crane Performance Siding

• Crissey Fowler Lumber Co.

• Custom Metal Industries

• Custom Panel Industries

• Daymond Aluminum

• DuPont Elastomers L.L.C.

• DuPont Packaging and Industrial Poly

• Duchesne et Fils Ltee.

• Dynamic Log Applications

• Eastern Industries, Inc.

• Edco Products, Inc.

• Elkem Materials Inc.

• Elward Systems Corp. - Denver Office

• EnergySmart - Coast Energy Management

• Exterior Technologies Group, Inc.

• Fairchance Construction

• Global Steel Building, Inc.

• Graham FRP Composites

• Granite City Building Products

• Granville Manufacturing Company, Inc.

• Gresham Design Services, Inc.

• H & F Manufacturing Corp.

• Hall Visual Systems Ltd.

• Harvey Building Products

• Heartland Building Products

• Henkel Surface Technologies

• HexaBlock

• Homasote Company

• Hoover Treated Wood Products

• International Paper

• James Hardie Building Products, Inc.

• James River Steel

• Jordan Panel Systems Corp.

• K Ply

• KWP Inc.

• Kool Metal Awning Co.

• LaHabra

• Lamboo® Incorporated

• Langfang Joyo Wood Industry Co, Ltd

• Loomis Metals Inc.

• Louisiana Pacific Corporation

• Makoa Mill, Inc.

• Masonite International Corporation

• Masonite U.S. Holdings, Inc.

• Mastic Premium Siding

• Maxitile, Inc.

• NICHIHA Fiber Cement

• Napco Building Specialties

• Napco, Inc.

• National Mfg.

• Nemiroff Corp.

• Norandex/Reynolds Distribution

• Nuline Industries, Inc.

• Ondura Corporation

• Oregon Anodizing Inc. DBA Becker Co. (The)

• Owen Marble Shop, Inc.

• Plastiglas Industries Ltd.

• Ply Gem

• Pride Industries, Inc.

• Rayonier

• Resolite FRP Composites

• Richwood Building Products

• RockCast - a div. of Reading Rock, inc.

• Rollex Corporation

• SealGuard USA

• Shakertown 1992, Inc.

• Shenango Steel Buildings

• Shiner Roofing, Inc.

• Southard Corporation

• Structural Slate Company

• Stuc-O-Flex International, Inc.

• Surebond

• Temple-Inland Forest Products Corporation

• The Pacific Lumber Company

• Tousignant Incorporated

• Ultra Seam

• Variform, Inc.

• Vermont Structural Slate Company, Inc.

• Vinyl Siding Institute, Inc. (VSI)

• WF Norman Corporation

• Werzalit of America, Inc.

• Western Red Cedar Lumber Association