As the largest roofing manufacturer in North America, GAF (originally known as General Aniline & Film) leads the industry with its state-of-the-art products, superior construction, and trade expertise. Founded in 1886, GAF has endured and thrived as a company, adapting to shifting industries and economies. The company stands today as the largest of its kind, with 26 manufacturing plants, 3,300 employees, and sales approaching $3 billion.Featuring its flagship brand, the Timberline architectural shingle, GAF's extensive line of products include a variety of steep-slope and commercial roofing systems. Some Timberline products are so rugged that they come with a limited lifetime warranty. GAF's residential roofing products include asphalt roofing shingles, slate roofing, roof leak barriers, roof ventilation, low-slope membrane roofing, as well as cements, coatings, and adhesives. In addition, GAF offers metal ductwork, fiber-cement siding, and specialty fabrics, among other building materials. GAF is focused on providing products that not only exceed industry standards, but also reduce the consumption of energy and scarce natural resources. GAF strives to maintain environmentally responsible practices. GAF's Certified Green Roofer Program assists distributors and contractors in doing business with qualified shingle recyclers in the United States and Canada. GAF has also developed products that include single-ply and asphaltic membranes, which help commercial property owners minimize energy consumption. GAF places the utmost importance on sound roofing practices. The company introduced CARE, the Center for the Advancement of Roofing Excellence, an educational industry support program that provides sales and management education to more than 125,000 professionals. The program also offers installation and product training to industry personnel such as property owners, architects, distributors, and contractors.