# US 2019/0376293 A1 · Roof membranes with removable protective sheets > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0376293 A1 - Document ID: US20190376293A1 - Status: Published application - Kind: A1 - Application number: 16/550,554 - Filed: 2019-08-26 - Published: 2019-12-12 - Earliest claimed: 2018-05-08 - Assignees: Carlisle Intangible Company - Applicants: Carlisle Intangible, LLC - Inventors: David French; Anil Shenoy; Xuan Zhang - Web page: https://patentgrep.com/patent/US20190376293A1 ## CPC - E04D 5/12: specially modified, e.g. perforated, with granulated surface, with attached pads - B32B 7/06: permitting easy separation - B32B 7/12: using interposed adhesives or interposed materials with bonding properties - B32B 27/08: of synthetic resin - C09J 7/403: {characterised by the structure of the release feature} - D06N 5/00: {Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch (compositions of bituminous materials C08L95/00, roof covering E04D5/00, roofing underlays E04D12/002)} - D06N 5/006: {characterised by the means to apply it to a support or to another roofing membrane, e.g. self-adhesive layer or strip} - E04D 5/06: by making use of plastics - E04D 5/10: by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen - E04D 5/148: {fastening by gluing} - B32B 2037/268: {Release layers} - B32B 2250/02: 2 layers - B32B 2307/408: Matt, dull surface - B32B 2307/71: Resistive to light or to UV - B32B 2307/732: Dimensional properties - B32B 2307/744: Non-slip, anti-slip - B32B 2419/06: Roofs, roof membranes - E04D: ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS (coverings of outer walls by plaster or other porous material E04F13/00) - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H) - D06N: WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR ## Abstract During installation of a single-ply roofing membrane, the surface of the membrane can be protected from dirt, scratches and scrapes by a protective sheet which also provides other beneficial attributes that aid an installer. A roof laminate includes a roof membrane and a protective sheet is removably affixed thereto. The sheet includes at least a first layer directly secured to a second layer. The first layer provides at least one of UV protection, anti-slip, and anti-glare to the roof laminate and so aids the installer in at least one of those respects. The second layer is removably affixed to the roof membrane. ## Claims ### Claim 1 A roof laminate to be secured to a roof deck comprising: a roof membrane that has a first surface and a second surface and is configured to be secured to the roof deck; and a protective sheet that is removably affixed to the first surface and includes at least a first layer directly secured to a second layer, one of the first layer and the second layer includes text or other indicia and the second layer is removably affixed to the roof membrane. ### Claim 2 (depends on 1) The roof laminate of claim 1 wherein one of the first layer and the second layer is colored. ### Claim 3 (depends on 1) The roof laminate of claim 1 wherein the first layer includes a pattern of raised areas spaced apart by recessed areas. ### Claim 3 (depends on 1) The roof laminate of claim 1 wherein the first layer has a static, dry coefficient of friction greater than 0.45 and a static wet coefficient of friction greater than 0.6. ### Claim 4 (depends on 1) The roof laminate of claim 1 wherein the first layer includes a coating that produces less than 30 gloss units at 60°. ### Claim 5 (depends on 1) The roof laminate of claim 1 wherein the first layer includes at least one of an antioxidant, a light stabilizer additive, and a light reflective pigment and is configured to provide UV protection. ### Claim 6 (depends on 1) The roof laminate of claim 1 wherein the protective sheet is affixed to the roof membrane by a layer of water insoluble adhesive. ### Claim 7 (depends on 6) The roof laminate of claim 6 wherein the layer of water insoluble adhesive has a preferential adherence to the second layer as compared to the roof membrane so that as the protective sheet is removed from the roof membrane, the adhesive is removed from the roof membrane by the protective sheet. ### Claim 8 (depends on 1) The roof laminate of claim 1 wherein the roof membrane is formed of at least one of PVC, TPO, EPDM, and polyolefin. ### Claim 9 (depends on 1) The roof laminate of claim 1 wherein the roof membrane is formed from a polymer selected from the group consisting of at least one of PVC, TPO, and EPDM. ### Claim 10 (depends on 9) The roof laminate of claim 9 wherein the roof membrane has a thickness of 40-160 mils. ### Claim 11 (depends on 1) The roof laminate of claim 1 wherein the protective sheet includes first and second perforations along first and second edges of the protective sheet. ### Claim 12 (depends on 1) The roof laminate of claim 1 wherein the protective sheet does not cover first and second edge portions of the roof membrane. ### Claim 13 (depends on 1) The roof laminate of claim 1 wherein the protective sheet sticks to the roof membrane in the absence of a separate adhesive.