Static structures (e.g. – buildings) – Lapped multiplanar surfacing; e.g. – shingle type – Interfitted sections
Patent
1999-02-05
2000-10-24
Friedman, Carl D.
Static structures (e.g., buildings)
Lapped multiplanar surfacing; e.g., shingle type
Interfitted sections
52409, 52445, 52453, 52519, 5274611, 428152, 428489, 156337, E04D 110
Patent
active
061348562
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.
REFERENCES:
patent: 3937640 (1976-02-01), Tajima et al.
patent: 3967032 (1976-06-01), Plotz et al.
patent: 4610902 (1986-09-01), Eastman et al.
patent: 4825618 (1989-05-01), Blevins
patent: 5895536 (1999-04-01), Starr et al.
Bruns Joseph R.
Di Stefano Michael
Khan Amir G.
Rains Richard Darrell
Building Materials Corporation of America
Davis William J.
Friedman Carl D.
Horton Yvonne M.
Katz Walter
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