Companies

• Duradek/Durarail

• ABC Supply Co., Inc.

• ADS Weatherdek Canada Ltd.

• AdVision Signs, Inc.

• American Permaquik, Inc.

• Barrett Company

• BondCote Corporation

• Centimark Corporation

• Company 2001, Inc.

• Conklin Company Inc., Building Products Division

• Dow Corning Inc.

• DuPont Elastomers L.L.C.

• DuPont Packaging and Industrial Poly

• ERSystems

• Flex Membrane International Corp.

• Foam Enterprises Inc.

• GenFlex Roofing Systems

• Harvey Building Products

• IB Roof Systems

• Ink Smith Inc.

• Monsey Bakor Inc.

• Mule-Hide Products Co.

• Permaquik Corporation

• Plastatech Engineering, Ltd.

• Sarnafil

• Sarnafil Ltd.

• Sarnafil Ltd.

• Smartroof

• Stevens Roofing Systems

• Tamko Roofing Products

• Urecoats Industries Inc.

• W. L. Gore & Associates, Inc.