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CertainTeed Corporation is a leading North American manufacturer of building materials including roofing, siding, insulation, windows and patio doors, fence, decking, railing, foundations and pipe. The company is headquartered in Valley Forge, Pennsylvania, and has approximately 7,000 employees and more than 40 manufacturing facilities throughout the United States.
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Founded in 1886, GAF Materials Corporation has grown to become North America’s largest manufacturer of residential roofing (sold under the GAF-Elk brand) and commercial roofing (sold under the GAF brand). 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.
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Owens Corning, the company that invented glass fiber, boasts a fascinating history of innovation and entrepreneurship. This legacy has continued as the company grew into the world leader in advanced glass and building material systems, and expands globally through today's competitive, international markets.
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Hanson, a world leader in the production of aggregates, bricks, concrete and concrete products, added Pioneer Roofing Tile to the Hanson group of companies in late 2000 as a suitable partner with a well-established reputation for producing standard-setting, concrete roof tile.
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Elk is a manufacturer of premium laminated fiberglass asphalt shingles and a leader in quality, service, market share, pricing, product innovation, manufacturing technology, marketing, and sales.
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MonierLifetile was formed in 1997 as a joint venture between long-time industry leaders Monier Inc. and Boral Lifetile Inc. Monier was founded in 1965 and Lifetile in 1962. The company is the largest manufacturer of premium-quality roof tile in the United States. Customer service is the driving force behind a corporate culture committed to bringing a dramatic new standard of excellence to the roofing products industry.
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