GAF-Elk has the reputation as a premier manufacturer of building products for more than 100 years. For every part of the building, GAF-Elk offers a quality line of roofing, vinyl and fiber cement siding, pvc trim, sheathing, fence, railing, deck, foundation, insulation, gypsum, ceilings, and pipe products for both residential and commercial building applications.

GAF Corp. Residential Roofing
Roofing from North America’s largest roofing and roof system manufacturer. Residential and commercial roofing, roof ventilation, roof moisture barrier, slate and TPO roofing. Professional installers have long preferred the rugged, dependable performance that only a GAF roof can offer, and have made it the #1-selling brand in North America. But our recent and rapid success in growing the company to nearly $3 billion in sales has been based on our unique philosophy.
Owens Corning Residential Roofing
Since Owens Corning was founded in 1938, the company has continued to grow as a market-leading innovator of glass fiber technology. A Fortune 500 company for more than 50 years, Owens Corning people redefine what is possible each day to deliver high-quality products and services to customers around the world.