Sheet of roofcovering material and method to apply this sheet in

Details Sheet of roofcovering material and method to apply this sheet in Sheet of roofcovering material and method to apply this sheet in

1984-11-30

1986-10-14

Thibodeau, Paul J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

427186, 428273, 428284, 428291, 428489, 428920, B32B 310, B32B 1706, B32B 1110

Patent

active

046172211

ABSTRACT:
Sheet of roofcovering material comprises a porous base-layer with apertures distributed over its surface. The base layer, at its upper side, is provided with a liquid- and/or vapor tight coating, onto which a bituminous adhering layer or a bituminous top layer has been applied.

REFERENCES:
patent: 1015919 (1912-01-01), Wardell
patent: 1278270 (1918-09-01), Wilber
patent: 1788121 (1931-01-01), Overbury
patent: 2392239 (1946-01-01), Fasold et al.
patent: 3135069 (1964-06-01), Schuller et al.
patent: 4343847 (1982-08-01), Meynard

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