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GAF Timberline® Cool Series
Thanks to modern reflective technology, you can join the green revolution with products like GAF's Timberline® Cool Series. The shingles use specially-designed roofing granules that have greater reflectance than traditional shingles. The result—less heat to the space below to keep you cooler in the summer. Timberline® Cool Series shingles are also made with the patented StainGuard® algae protection to assure the beauty of your roof against unsightly blue-green algae.