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US 10,245,816 B2Granted
Solar heat reflective roofing membrane and process for making the same
AssigneeCertainTeed Corporation
InventorsHusnu M. Kalkanoglu, Ming Liang Shiao, Gregory F. Jacobs
Life of this patent
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Abstract
A roofing membrane with high solar heat reflectance includes a bituminous base sheet, a tie-layer with a reinforcement material, and a solar heat-reflective upper layer.
Claims20
A process for preparing a roofing membrane with solar heat-reflectance, the process comprising:
- laminating a tie-layer to a bituminous base sheet to form an intermediate sheet, the bituminous base sheet comprising a continuous substrate sheet of fibrous material, the continuous substrate sheet being saturated with a bituminous material and coated on at least one side with a bituminous material;
- depositing a solar heat-reflective polymeric coating composition directly on the intermediate sheet;
- curing the solar heat-reflective polymeric coating composition to form a solar heat-reflective coating;
- and
- depositing an upper coating composition directly on the solar heat-reflective coating to form an upper coating layer;
- wherein the tie-layer is laminated to the bituminous base sheet by heating the surface of the base sheet to above the softening temperature of the bituminous material, and adhering the tie-layer to the base sheet by contacting the base sheet with the tie-layer and permitting the bituminous material to partially saturate the tie-layer.
3 more elements
A process for preparing a roofing membrane with solar heat-reflectance, the process comprising:
- depositing a solar heat-reflective polymeric coating composition directly on a tie-layer to form an intermediate sheet;
- curing the solar heat-reflective polymeric coating composition to form a solar heat-reflective coating on top of the tie-layer;
- laminating the tie-layer of the intermediate sheet directly to a bituminous base sheet, the bituminous base sheet comprising a continuous substrate sheet of fibrous material, the continuous substrate sheet being saturated with a bituminous material and coated on at least one side with a bituminous material;
- and
- depositing an upper polymeric coating composition directly on the solar heat-reflective coating to form an upper coating layer;
- wherein the tie-layer is laminated to the bituminous base sheet by heating the surface of the base sheet to above the softening temperature of the bituminous material, and adhering the tie-layer to the base sheet by contacting the base sheet with the tie-layer and permitting the bituminous material to partially saturate the tie-layer.
3 more elements
A method of constructing a roof having solar heat reflectance, the method comprising adhering to a roofing deck a roofing membrane with solar heat reflectance, the roofing membrane comprising:
- a bituminous base sheet comprising a continuous substrate sheet of fibrous material, the continuous substrate sheet being saturated with a bituminous material and coated on at least one side with a bituminous material;
- a tie-layer comprising a reinforcement material laminated directly to the bituminous base sheet;
- a solar heat-reflective layer deposited directly onto the tie-layer;
- and
- a protective top coating deposited directly onto the solar heat-reflective layer;
- wherein the tie-layer is laminated to the bituminous base sheet by heating the surface of the base sheet to above the softening temperature of the bituminous material, and adhering the tie-layer to the base sheet by contacting the base sheet with the tie-layer and permitting the bituminous material to partially saturate the tie-layer.
3 more elements
Dependencies are inferred from the claim text.