Roofing membranes and system
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United States of America Patent
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Sep 9, 1986
Grant Date -
N/A
app pub date -
Sep 10, 1985
filing date -
Sep 10, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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.
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