Founded in 1886, GAF has become North America’s largest manufacturer of commercial and residential roofing. Our success in growing the company to nearly $3 billion in sales has been a result of our relentless pursuit of quality, combined with industry-leading expertise and comprehensive roofing solutions. GAF is the most fully integrated roofing manufacturer in the United States, with more than 3,000 employees in 29 plants across the country.
We are proud to be a global leader in insulation, roofing, and fiberglass composite materials. Our insulation products conserve energy and improve acoustics, fire resistance, and air quality in the spaces where people live, work, and play. Our roofing products and systems enhance curb appeal and protect homes and commercial buildings alike. Our fiberglass composites make thousands of products lighter, stronger, and more durable. At Owens Corning, we provide innovative products and solutions that deliver a material difference to our customers and, ultimately, make the world a better place.