Invention Application
WO2003059557A1 IMPROVED ROOFING MATERIALS 审中-公开
改进的屋面材料

IMPROVED ROOFING MATERIALS
Abstract:
A roofing or siding system (10) having an improved average resulting reflectivity. The roofing and/or siding system is at least partially coated with a plurality of granules (16). The granules have an average reflectivity of at least about 55% and an average hardness of over about 3 Moh's.
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