Roofing granules with high solar reflectance, roofing products with high solar reflectance, and processes for preparing same

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 co...

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Bibliographische Detailangaben
Hauptverfasser:	Shiao, Ming Liang, Kalkanoglu, Husnu M
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BUILDING CEILINGS CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE FIXED CONSTRUCTIONS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR FLOORS GENERAL BUILDING CONSTRUCTIONS GUTTERS INSULATION OR OTHER PROTECTION OF BUILDINGS LAUNDERING LIME, MAGNESIA METALLURGY REFRACTORIES ROOF COVERINGS ROOF-WORKING TOOLS ROOFS SKY-LIGHTS SLAG TEXTILES TREATMENT OF NATURAL STONE TREATMENT OF TEXTILES OR THE LIKE WALL, FLOOR OR LIKE COVERING MATERIALS, e.g. LINOLEUM,OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF AFIBROUS WEB COATED WITH A LAYER OF MACROMOLECULARMATERIAL WALLS, e.g. PARTITIONS
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Beschreibung
Zusammenfassung:	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.