Roofing granules with high solar reflectance, roofing...

Details Roofing granules with high solar reflectance, roofing... Roofing granules with high solar reflectance, roofing...

C - Chemistry, Metallurgy

09

D

C09D 5/33 (2006.01) E04D 5/12 (2006.01) E04D 7/00 (2006.01)

Patent

CA 2734534

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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