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Roofing granules with high solar reflectance, roofing products with high solar reflectance, and processes for preparing same
Roofing granules with high solar reflectance, roofing products with high solar reflectance, and processes for preparing same
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机译:具有高日光反射率的屋面颗粒,具有高日光反射率的屋面产品及其制备方法
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摘要
A solar heat-reflective roofing product includes a base sheet, and solar heat-reflective roofing granules on top of the base sheet. The granules have a base particle with a flake-like geometry covered by a uniform coating layer. The coating layer has a thickness of at least one mil and includes a coating binder and at least one solar heat-reflective pigment. The solar heat-reflective pigment provides a solar heat reflectance of greater than 70 percent to the granules and the roofing product. Roofing products including roofing shingles and roofing membranes are described.
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