Founded in 1886, GAF is the largest roofing manufacturer in North America. As the industry leader with over $3 billion in sales, GAF proudly offers a comprehensive portfolio of award-winning, innovative roofing products for both steep-slope and commercial properties. Supported by an extensive national network of factory-certified contractors, GAF has built its reputation — and its success — on its steadfast commitment to Advanced Quality, Industry Expertise, Simple Solutions, and helping commercial property owners and designers reduce energy consumption.