Abstract: A process for devulcanizing EPDM rubber comprising the step of introducing sulfur-cured EPDM to an extruder, introducing from about 0.5 to about 20 wt % scavenging agent, based upon the total weight of the EPDM and scavenging agent, and mixing and masticating the EPDM at a temperature sufficient to at least partially devulcanize the sulfur-cured EPDM.

Abstract: A method of installing a roofing membrane includes providing a membrane including a polymeric body having first and second opposed planar surfaces and a lap edge, a pressure-sensitive adhesive layer disposed on the first planar surface, and a release member removably affixed to the adhesive layer. Then, cutting the release liner while simultaneously scoring the adhesive layer along a line substantially parallel to the lap edge by use of a cutting and scoring tool and said step of cutting and scoring includes contacting the tool to the release liner. Finally, removing the release liner to expose the adhesive layer in the lap area; then applying a high-tensile member to the exposed adhesive layer in the lap area and forcibly removing the high-tensile member to thereby remove the adhesive layer within the lap area; and seaming the membrane composite to an adjacent membrane.

Abstract: A membrane composite comprising a polymeric membrane panel, an adhesive layer, and a release liner, where the adhesive layer is a pressure-sensitive adhesive that is at least partially cured, and includes at least two distinct regions with the at least two regions having distinct states of cure.

Abstract: A pressure-sensitive adhesive polymeric composition comprising: a butyl rubber; a polyurethane; an olefinic polymer component; and a filler that includes titanium dioxide, wherein said adhesive polymeric composition is pressure-sensitive, and where pressure-sensitive adhesive polymeric composition is a solids composition wherein said butyl rubber forms a matrix.

Abstract: A method of preparing a seamless membrane over a flat or low-sloped roof, the method comprising applying multiple layers of a liquid coating composition over a roof surface, where said step of applying includes applying at least one layer of a liquid coating composition that includes expandable graphite.

Abstract: An asphaltic sheet comprising an asphaltic component including an asphalt binder and expandable graphite.

Abstract: A construction board comprising (a) a foam core having a first planar surface and a second planar surface; (b) a facer, having first and second planar surfaces, including an inorganic fabric and a coating; and (c) an interfacial region between the foam core and said facer.

Abstract: A thermoplastic roofing membrane comprising a planar thermoplastic sheet, optionally having more than one layer, where at least one layer of the membrane includes an ethylene-based olefinic block copolymer.

Abstract: A method for producing an asphaltic sheet having expandable graphite dispersed in one or more asphaltic components thereof, the method comprising preparing a masterbatch by combining asphalt binder and polymeric modifier at a first temperature, cooling the masterbatch to a second temperature, where the second temperature is lower than the first temperature, adding, after said step of cooling, expandable graphite to the masterbatch to thereby form an asphaltic composition including expandable graphite, and fabricating a sheet with the asphaltic composition including expandable graphite.

Abstract: A phase-separated polymeric composition comprising a first phase including polyurethane domains; and a second phase including a butyl rubber matrix.

Abstract: A non-black roofing membrane comprises an EPDM rubber; a non-black filler; a UV light stabilizer selected from the group consisting of NOR-HALS of the formula wherein R* is C1-C20alkyl, OH-substituted C1-C20alkyl, optionally C1-C4 alkyl-substituted C5-C12cycloalkyl, C7-C9phenylalkyl or O- or S-interrupted C2-C20alkyl, preferably C1-C12alkyl, benzyl or C5-C8 cycloalkyl especially C6-C10alkyl or cyclohexyl; and a cure package. The resultant roofing membrane provides increased weathering resistance.

Abstract: A thermoplastic roofing membrane comprising a planar thermoplastic sheet, optionally having more than one layer, where at least one layer of the membrane includes an ethylene-based olefinic block copolymer, and where the sheet is characterized by a storage modulus of less than 450 MPa at 0° C.

Abstract: A roofing system includes a construction board positioned over a roof deck and a plurality of fastening plates positioned on a top surface of the construction board. At least one connector extends between two of the plurality of fastening plates and is positioned on the top surface of the construction board. The construction boards may be insulation or cover boards, and in certain embodiments may be polyisocyanurate boards. Fasteners are driven through the fastening plates and the construction boards and into an underlying roof deck to secure the construction boards in place.

Abstract: An insulation device comprising a first plurality of vacuum-insulated capsules connected along a first plane, where each vacuum-insulated capsule within said first plurality has a common first geometric shape extending from the first plane and a second plurality of vacuum-insulated capsules connected along a second plane, where each vacuum-insulated capsule within said second plurality has a common second geometric shape extending from the second plane, where said first and said second geometric shapes are complementary, and where said first plurality of vacuum-insulated capsules are intermeshed within said second plurality of vacuum-insulated capsules to form the insulation device.

Abstract: A flashing laminate includes a non-reinforced thermoplastic sheet having a bottom surface, a first longitudinal edge, and a second longitudinal edge. The flashing laminate also includes an adhesive layer on a longitudinally extending portion of the bottom surface adjacent to one of the longitudinal edges. In one or more embodiments, the laminate also includes a release liner positioned over the adhesive tape.

Abstract: A construction board comprising of a foam body, said foam body having first and second planar sides; and a facer affixed to said first or second planar surface, said facer including a cellulosic substrate and a water-resistant coating layer, said cellulosic layer having first and second planar sides, where said first planar side of said cellulosic substrate is affixed to said foam body and said second planar side carries said coating, where said cellulosic substrate is substantially devoid of fiberglass, where said water-resistant coating layer has a thickness of less than 1.5 mm, and where said water-resistant coating layer includes a polymeric binder and a filler dispersed throughout the binder.

Abstract: A roofing membrane comprising an olefinic rubber; and from about 20 to about 250 parts by weight of a silica filler per 100 parts by weight rubber; wherein the silica filler is chemically coupled to the olefinic rubber; and wherein the roofing membrane is non-black.

Abstract: A method for producing an asphaltic sheet, the method comprising of providing an asphaltic sheet; and applying expandable graphite particles to the asphaltic sheet.

Abstract: A method of covering a roof deck involves adhering a preformed, self adhering single ply roofing membrane which includes a water impermeable membrane, a pressure sensitive, hot melt adhesive adhered to one side of the water impermeable membrane, and a release liner on the side of the pressure sensitive, hot melt adhesive opposite of the water impermeable membrane.

Abstract: A construction board comprising a foam layer, an pressure-sensitive adhesive layer that is at least partially cured, and a release liner.