Laminated bituminous roofing membrane

Details Laminated bituminous roofing membrane Laminated bituminous roofing membrane

E - Fixed Constructions

04

D

20/20.2

E04D 3/35 (2006.01) E04D 5/10 (2006.01) E04D 5/12 (2006.01)

Patent

CA 1230723

LAMINATED BITUMINOUS ROOFING MEMBRANE ABSTRACT OF THE DISCLOSURE 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 bitumi- nous 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.

461985

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