Welcomes Roofing Underlayments Companies G.A.P. Roofing, Inc. and GMC Roofing & Building Paper Products, Inc.

The company makes premium roofing underlayments with fast delivery times and competitive pricing., the place where the industry meets for technology, information and everyday business is pleased to welcome G.A.P. Roofing, Inc and GMC Roofing & Building Paper Products, Inc. These two “sister” companies are leading manufacturers of premium roofing underlayments as well as other unique building envelope products.  The two companies have been family owned and operated for over 25 years.  G.A.P. Roofing’s primary markets run from the Rocky Mountains all the way to the east coast, while GMC Roofing’s territory operates west of the Rockies to the west coast.

By using raw materials from their own paper mills, G.A.P. and GMC Roofing ensure that they have full control over quality and product performance. They offer over 25 products including ASTM rated saturated felts, synthetic underlayments, roll roofing and a variety of specialty products.  The new peel and stick (SBS modified) WaterGuard line features a unique granular Rain and Ice (no Selvedge edge!), AMT (Architectural Metal and Tile) SBS Modified designed for high temperature applications, and SBS Modified Cap and Base sheets.

Both teams of experienced sales professionals understand the roofing industry and are always available to help customers. Whether it’s selecting the right products or answering technical questions, the G.A.P. and GMC Roofing teams provide great customer service while standing behind all of their North American made products. Contractors receive a quality product at a competitive price. is proud to welcome G.A.P. Roofing, Inc. and GMC Roofing & Building Paper Products, Inc.

About G.A.P. Roofing, Inc. and GMC Roofing & Building Paper Products, Inc.
G.A.P. Roofing, Inc. is a leading manufacturer of premium roofing underlayments. It was founded by the Passmore family in 1990 when they leveraged their roofing industry experience and started Great Asphalt Products in Pryor, Oklahoma. The company owns its own paper mills and processes, with the belief that utilizing unique raw material formulations and greater attention to product standards and consistency, achieves a better product, lessens lead times and allows for meeting demand when natural disasters arise. GAP Roofing’s headquarters and manufacturing site is located in Pryor, OK and they operate a manufacturing and distribution site in Jasper, FL.  GMC Roofing’s headquarters and manufacturing site is located in Shafter, CA.  For more information, visit  or

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Published at Mon, 31 Jul 2017 12:58:13 +0000