# US 12,215,500 B2 · Composite roofing membrane and methods thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,215,500 B2 - Document ID: US12215500B2 - Status: Granted - Kind: B2 - Application number: 17/846,791 - Filed: 2022-06-22 - Published: 2022-12-22 - Granted: 2025-02-04 - Earliest claimed: 2021-06-22 - Assignees: Siplast, Inc. - Applicants: Siplast, Inc. - Inventors: Kirk Goodrum - Web page: https://patentgrep.com/patent/US12215500B2 ## CPC - E04D 5/10: by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen - E04D 11/02: Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition (gravelling of flat roofs E04D7/00; venting or ventilation E04D13/17) - E04D: ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS (coverings of outer walls by plaster or other porous material E04F13/00) ## Abstract Some embodiments of the present disclosure are directed to a composite roofing membrane. In some embodiments, the composite roofing membrane comprises a roofing membrane and a roofing composite. In some embodiments, the roofing composite comprises a cap layer and a reinforcing material. In some embodiments, composite roofing membrane comprises an adhesive positioned between the roofing composite and the roofing membrane. In some embodiments, the adhesive comprises a moisture-cure adhesive. In some embodiment, the adhesive comprises a silane-terminated polymer, a polymethylmethacrylate or combinations thereof. ## Claims ### Claim 1 A roofing product comprising: a roofing composite comprising: a cap layer, and a reinforcing material; an adhesive, wherein the adhesive comprises a moisture-cure adhesive, wherein the adhesive comprises a silane-terminated polymer, a polymethylmethacrylate or combinations thereof; and a roofing membrane with a coating, wherein the roofing membrane comprises a styrene-butadiene-styrene-modified bitumen membrane, a thermoplastic polyolefin membrane, or a polyvinyl chloride membrane; wherein the coating is positioned between the adhesive and the roofing membrane, and wherein the roofing membrane is configured to be formed as a roll good. ### Claim 2 (depends on 1) The roofing product according to claim 1, wherein the adhesive directly contacts the coating. ### Claim 3 (depends on 1) The roofing product according to claim 1, wherein the coating is selected so as to reduce oil migration from the roofing membrane to the roofing composite. ### Claim 4 (depends on 3) The roofing product according to claim 3, wherein the coating is an acrylic coating. ### Claim 5 (depends on 4) The roofing product according to claim 4, wherein the coating has a thickness from 1 mil to 10 mils. ### Claim 6 (depends on 1) The roofing product according to claim 1, wherein the adhesive excludes a foam adhesive. ### Claim 7 (depends on 1) The roofing product according to claim 1, wherein the adhesive has a thickness from 10 mils to 40 mils. ### Claim 8 (depends on 1) The composite reefing membrane roofing product according to claim 1, wherein the roofing composite has a thickness from 10 mils to 40 mils. ### Claim 9 A method of installation comprising: obtaining a roofing membrane, wherein the roofing membrane comprises: a styrene-butadiene-styrene-modified bitumen membrane, a thermoplastic polyolefin membrane, or a polyvinyl chloride membrane, and a coating, wherein the coating is on a top surface of the roofing membrane, installing a bottom surface of the roofing membrane to a roofing substrate, obtaining a roofing composite that is separate from the roofing membrane, wherein the roofing composite comprises: a cap layer, and a reinforcing material, obtaining an adhesive that is separate from the roofing membrane and the roofing composite, wherein the adhesive comprises a moisture-cure adhesive, wherein the adhesive is selected from at least one of: a silane-terminated polymer, a polymethylmethacrylate, or combinations thereof, applying the adhesive to the top surface of the roofing membrane that is attached to the roofing substrate, and adhering the roofing composite to the adhesive that is applied to the top surface of the roofing membrane so as to form a composite roofing membrane on the roofing substrate. ### Claim 10 (depends on 9) The method according to claim 9, wherein applying the adhesive to the top surface of the roofing membrane comprises directly applying the adhesive to the top surface without any intervening layer. ### Claim 11 (depends on 9) The method according to claim 9, wherein the coating is selected so as to reduce oil migration from the roofing membrane to the roofing composite. ### Claim 12 (depends on 11) The method according to claim 11, wherein the coating is an acrylic coating. ### Claim 13 (depends on 12) The method according to claim 12, wherein the coating has a thickness from 1 mil to 10 mils. ### Claim 14 (depends on 9) The method according to claim 9, wherein the adhesive excludes a foam adhesive. ### Claim 15 (depends on 9) The method according to claim 9, wherein the adhesive has a thickness from 10 mils to 40 mils. ### Claim 16 (depends on 9) The method according to claim 9, wherein the roofing composite has a thickness from 10 mils to 40 mils.