Laminated bituminous roofing membrane

Details Laminated bituminous roofing membrane Laminated bituminous roofing membrane

1984-08-31

1987-01-13

Thibodeau, Paul J.

Stock material or miscellaneous articles

Layer or component removable to expose adhesive

Halogen containing compound

428143, 428195, 428291, 428489, B32B 300, B32B 1100

Patent

active

046364145

ABSTRACT:
A laminated bituminous roofing membrane including: (i) a fibrous sheet; (ii) a first bituminous layer laminated on one surface of the fibrous sheet, the bituminous layer being composed of bitumen or a bituminous mixture; (iii) a synthetic resin sheet or film laminated on the other surface, opposite to the surface laminated to the fibrous sheet, of the first bituminous layer; (iv) a second bituminous layer laminated on the other surface of the fibrous sheet, the bituminous layer being composed of bitumen or a bituminous mixture; and (v) a mineral aggregate layer deposited on the opposite surface of the second bituminous layer.
This laminated bituminous roofing membrane can be readily and directly applied in a cold-application process on a substrate to form a waterproofing layer in which the joint portions of adjacent roofing membranes are completely water-tightly bonded and the formation of blistering and deterioration due to the presence of moisture or water from the substrate is prevented.

REFERENCES:
patent: 3813280 (1974-05-01), Olszyk et al.
patent: 3903340 (1975-09-01), Shepherd
patent: 4091135 (1978-05-01), Tajima et al.

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