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US 2017/0321424 A1Published application
Highly reflective roofing system
AssigneeU.S. Silica Company
InventorsEric L. Sexauer, Matthew W. Kolb
Life of this patent
Estimating the term…
Abstract
A cool roofing system includes highly reflective calcined kaolin particles having a solar reflectance of 80% to 92%. When applied to a roofing substrate, the highly reflective kaolin particles produce a roofing system having a solar reflectance greater than or equal to 70%.
Claims20
A cool roofing system comprising:
- at least one asphalt layer and at least one granular layer comprising a plurality of highly reflective calcined kaolin particles having a reflectance ranging from about 80% to about 92% adhered to the asphalt layer, wherein the cool roofing system has minimum solar reflectance of 70% or more.
A cool roofing system comprising:
- a roofing substrate, at least one layer of spray polyurethane foam applied to the roofing substrate, an elastomeric coating layer applied over and adhered to the spray polyurethane foam layer, and a granular layer comprising plurality of highly reflective calcined kaolin particles having a reflectance ranging from about 80% to about 92% adhered to a top surface of the elastomeric coating layer, wherein the cool roofing system has a minimum reflectance of at least 70%.
Dependencies are inferred from the claim text.