Combined application process of thermal insulation and built-up roofing or waterproofing
AssigneeTajima Roofing Co., Ltd.
InventorsEiichi Tajima, Kaname Yamamoto
Life of this patent
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Abstract
A novel combined application process of thermal insulation and built-up roofing or waterproofing is provided. In this application process, a foamed thermo-plastic thermal insulating material is bonded with a membrane having a tacky compound layer on one surface thereof so that the tacky compound layer is in close contact with the foamed thermoplastic material, without causing any damage due to heating, and a built-up roofing or waterproofing is formed on the other surface of the membrane according to the conventional application process.
Claims11
A combined application process for manufacturing a built-up bituminous roofing or waterproofing and thermal insulation assembly comprising the steps of:
- a. placing a base sheet having a compound layer on one surface thereof, onto one surface of a foamed thermoplastic resin board whose other surface is adhered to a substrate surface so that the compound layer is in close adhering contact with said one surface of the foamed thermoplastic resin board, said compound layer consisting essentially of a substantially pressure-sensitive self-adhesive composition, and;
- b. coating the other surface of the base sheet with hot molten bitumen.
A process for manufacturing a combined, built-up, bituminous roofing or waterproofing and thermal insulation assembly, utilizing a base sheet having the entirety of one surface thereof covered with a compound coating layer consisting essentially of a pressure-sensitive self-adhesive composition that possesses high tackiness at ambient temperature, said compound layer being covered by a release paper having a release surface in releasably adhering contact with the outer surface of said compound layer and the other surface of said base sheet being free of said compound layer, comprising the steps of:
- adhering, onto a wall of a building, foamed thermoplastic resin board means to form a thermal insulation layer on said wall, the outer surface of said board means being exposed;
- removing the release sheet from said compound layer of said base sheet to expose said compound layer and then placing said base sheet onto the exposed outer surface of said foamed thermoplastic resin board means with said compound layer being in direct face-to-face adhering contact with said outer surface of said board means to form a substantially waterproof joint therebetween;
- and
- then coating said outer surface of said base sheet with a layer of molten roofing bitumen.
Dependencies are inferred from the claim text.