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CertainTeed Corporation is a leading North American manufacturer of building materials including roofing, vinyl and fiber cement siding, trim, fence, railing, decking, foundations, insulation, gypsum, ceilings, and pipe products.
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 56 years, Owens Corning people redefine what is possible each day to deliver high-quality products and services to customers around the world.
Founded in 1886, GAF has grown to become North America’s largest manufacturer of commercial and residential 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.*
Our success in growing the company to nearly $3 billion in sales has been based on our unique philosophy of helping: For property owners & architects:
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