Roll roofing membrane
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 24, 2000
Grant Date -
N/A
app pub date -
Feb 5, 1999
filing date -
Feb 5, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An improved roll roof membrane for use in commercial applications, i.e., flat and low pitch roof structures, and a method for the preparation thereof. The roof membrane comprises a support sheet, and top and bottom layers comprising APP modified bitumen, the top APP modified bitumen layer having a selvage edge disposed along one side of the membrane and the bottom APP modified bitumen layer having a second selvage edge disposed along the opposite side of the membrane. Each of the selvage edges have a series of embossed ridges and valleys adapted to accept adhesives, the valleys extending substantially through the APP modified bitumen layer to the support sheet. The membrane exhibits excellent peel strength with an adhesive, thereby eliminating the need to use a torch during installation in commercial roofing applications.
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Family
International Classification(s)
Cited Art Landscape
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