# US 10,245,816 B2 · Solar heat reflective roofing membrane and process for making the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,245,816 B2 - Document ID: US10245816B2 - Status: Granted - Kind: B2 - Application number: 14/705,403 - Filed: 2015-05-06 - Published: 2015-09-24 - Granted: 2019-04-02 - Earliest claimed: 2005-09-07 - Assignees: CertainTeed Corporation - Applicants: CertainTeed Corporation - Inventors: Husnu M. Kalkanoglu; Ming Liang Shiao; Gregory F. Jacobs - Web page: https://patentgrep.com/patent/US10245816B2 ## CPC - B32B 37/04: characterised by the partial melting of at least one layer - B32B 5/022: {Non-woven fabric} - B32B 11/10: next to a fibrous or filamentary layer - B32B 25/10: next to a fibrous or filamentary layer - B32B 25/20: comprising silicone rubber - B32B 27/00: Layered products comprising {a layer of} synthetic resin {(fibrous or filamentary layer made of a synthetic resin B32B5/02; particulate layer made of a synthetic resin B32B5/16; foamed layer made of a synthetic resin B32B5/18)} - B32B 27/12: next to a fibrous or filamentary layer - B32B 27/304: {comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF} - B32B 27/308: {comprising acrylic (co)polymers} - E04D 5/08: by making use of other materials - B32B 2255/02: on fibrous or filamentary layer - B32B 2255/26: Polymeric coating - B32B 2260/021: Fibrous or filamentary layer - B32B 2260/046: Synthetic resin - B32B 2262/02: Synthetic macromolecular fibres - B32B 2262/101: Glass fibres - B32B 2264/102: Oxide or hydroxide - B32B 2307/304: Insulating - B32B 2307/416: Reflective - B32B 2307/552: Fatigue strength - B32B 2307/554: Wear resistance - B32B 2307/712: Weather resistant - B32B 2419/06: Roofs, roof membranes - Y02A 30/254: Roof garden systems; Roof coverings with high solar reflectance - Y02B 80/00: Architectural or constructional elements improving the thermal performance of buildings - Y10T 428/31511: Of epoxy ether - Y10T 428/3154: Of fluorinated addition polymer from unsaturated monomers - Y10T 428/31725: Of polyamide - Y10T 428/31786: Of polyester [e.g., alkyd, etc.] - Y10T 428/31815: Of bituminous or tarry residue - Y10T 428/31935: Ester, halide or nitrile of addition polymer - Y10T 428/31938: Polymer of monoethylenically unsaturated hydrocarbon - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - E04D: ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS (coverings of outer walls by plaster or other porous material E04F13/00) - Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## 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. ## Claims ### Claim 1 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. ### Claim 2 (depends on 1) A process according to claim 1 wherein the solar heat-reflective polymeric coating composition is deposited by curtain coating. ### Claim 3 (depends on 1) A process according to claim 1 wherein the solar heat-reflective polymeric coating composition is deposited by electrostatic spray coating. ### Claim 4 (depends on 1) A process according to claim 1 wherein the upper coating composition is formulated to provide exterior durability. ### Claim 5 (depends on 4) A process according to claim 4 wherein the upper coating composition comprises at least one of a fluoropolymer, a UV-curable coating, an acrylic latex based coating, or a silicone emulsion. ### Claim 6 (depends on 1) A process according to claim 1 wherein the tie-layer is formed from a reinforcement material. ### Claim 7 (depends on 6) A process according to claim 6 wherein the reinforcement material is selected from the group consisting of non-woven glass fiber mats, non-woven polyester mats, composite non-woven mats of various fibers, composite woven fabrics of various fibers, industrial fabrics such as papermaker's forming fabrics and papermaker's canvasses, polymer netting, screen, and mineral particles. ### Claim 8 (depends on 1) A process according to claim 1 wherein the tie-layer has a thickness of from about 0.001 cm to about 0.1 cm. ### Claim 9 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. ### Claim 10 (depends on 9) A process according to claim 9 wherein the solar heat-reflective polymeric coating composition is deposited by curtain coating. ### Claim 11 (depends on 9) A process according to claim 9 wherein the upper polymeric coating composition is deposited by curtain coating. ### Claim 12 (depends on 9) A process according to claim 9 wherein the solar heat-reflective polymeric coating composition is deposited by electrostatic spray coating. ### Claim 13 (depends on 9) A process according to claim 9 wherein the upper polymeric coating comprises at least one of a fluoropolymer, a UV-curable coating, an acrylic latex based coating, or a silicone emulsion. ### Claim 14 (depends on 9) A process according to claim 9 wherein the tie-layer is formed from a reinforcement material selected from the group consisting of non-woven glass fiber mats, non-woven polyester mats, composite non-woven mats of various fibers, composite woven fabrics of various fibers, industrial fabrics such as papermaker's forming fabrics and papermaker's canvasses, polymer netting, screen, and mineral particles. ### Claim 15 (depends on 9) A process according to claim 9 wherein the tie-layer has a thickness of from about 0.001 cm to about 0.1 cm. ### Claim 16 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. ### Claim 17 (depends on 16) A process according to claim 16 wherein the solar-heat reflective layer is deposited by spray coating. ### Claim 18 (depends on 16) A process according to claim 16 wherein the solar-heat reflective layer is deposited by electrostatic spray coating. ### Claim 19 (depends on 16) A process according to claim 16 wherein the protective top coating comprises at least one of a fluoropolymer, a UV-curable coating, an acrylic latex based coating, or a silicone emulsion. ### Claim 20 (depends on 16) A process according to claim 16 wherein the tie-layer is formed from a reinforcement material selected from the group consisting of non-woven glass fiber mats, non-woven polyester mats, composite non-woven mats of various fibers, composite woven fabrics of various fibers, industrial fabrics such as papermaker's forming fabrics and papermaker's canvasses, polymer netting, screen, and mineral particles.