초록 ▼

A laminate composition useful as a roofing membrane comprising a top and a bottom layer of plastic film bonded together by a modified bitumen material, the top layer of said laminate either containing or being surface coated with an ultraviolet light resistant and absorbing agent. The inventive lami

A laminate composition useful as a roofing membrane comprising a top and a bottom layer of plastic film bonded together by a modified bitumen material, the top layer of said laminate either containing or being surface coated with an ultraviolet light resistant and absorbing agent. The inventive laminate has superior elongation and flexibility properties compared to prior art roofing membranes. Additionally, the inventive laminate is light weight and has good aesthetic qualities. Also provided are a novel embossed laminate, also useful as a roofing membrane, and a novel roofing system comprising a plurality of partially overlapping inventive roof membranes suitably attached to a roof deck.

대표청구항 ▼

An embossed laminate suitable for use as a roofing membrane, said corrugated laminate comprising a top and a bottom layer of plastic film bonded together by a modified bitumen material, wherein (i) the modifier for said bitumen is one selected from the group consisting of thermoplastic elastomers, t

An embossed laminate suitable for use as a roofing membrane, said corrugated laminate comprising a top and a bottom layer of plastic film bonded together by a modified bitumen material, wherein (i) the modifier for said bitumen is one selected from the group consisting of thermoplastic elastomers, thermoplastic rubbers, and polyurethanes; (ii) the top layer of said corrugated laminate contains or is surface coated with an ultraviolet light resistant and absorbing agent and, (iii) the corrugating of said laminate assists in the elongation and flexibility of said laminate in the lengthwise direction of the laminate to avoid buckling and cracking of said laminate and assists in the stiffness and rigidity of said laminate in the width direction of said laminate to resist wind uplift of said laminate.