Founded in 1886, GAF Materials Corporation is one of the largest and fastest-growing building products manufacturers in North America. Offering high quality products in roofing, decking, railings, decorative stone, ductwork and specialty fabrics. 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).


As the original stone coated steel roofing system, the DECRA® product line represents a perfect blending of 50 years of research and practical experience. Offering the ultimate in performance and engineering design is what DECRA Roofing Systems are all about.
Manufactured using the finest lightweight aluminum-zinc alloy coated steel, covered with 3M ceramic coated stone granules and sealed with our exclusive polymer coating, DECRA Roofing Systems are the most beautiful, durable and trouble free roofs available today.

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CertainTeed has earned a reputation as a premier building materials manufacturer for more than 100 years. For every part of the home, CertainTeed offers a quality line of Vinyl Siding, Fiber Cement Siding, Trim, Roofing, Vinyl Windows, Insulation, Fence, Railing, Deck, Pipe and Foundation products.


Atlas manufactures premium quality roofing systems products. Our products include everything from environmentally friendly commercial roof insulation to the finest in roofing products available, including our favorite, the StormMaster line. Enjoy the beauty of a slate-look shingle for your home without compromising on strength backed by a Lifetime Warranty. StormMaster® Slate is available in a sophisticated palette of designer color blends that will complement any home design.


DaVinci Products Meet or Exceed Building Industry Standards

All DaVinci products are rigorously tested by outside testing agencies to ensure they comply (or exceed) building code and industry standards and certifications. Certifications relate to product performance features such as impact resistance (Class 4), fire retardance (class A) and the like, so that you have the confidence that our products will perform as we say. Recently, DaVinci Slate and Shake have received the highly-coveted acceptance of the ICC-ES, which is the United States' leader in evaluating building products for compliance to code.