Patent ID: 6360506
Filing Date: 2002-03-26
Classification: D06N,E04D,Y10T

Abstract:
A roofing membrane, comprising:a bottom layer made of a material selected from the group consisting of meltable non-woven plastic and other meltable plastic layer; a first layer made of bitumen; a carrier sheet made of a material having tensile strength and selected from the group consisting of non-woven material and woven fabric; a second layer made of bitumen; a top separation layer intended for fusion to an overlapping region of a said bottom layer of a second said roofing membrane to be attached; a first bitumen strip exhibiting self-sticking properties in cold condition and positioned on a topside of the carrier sheet at a marginal area of the roofing membrane; a second bitumen strip exhibiting self-sticking properties in cold condition and placed on a bottom side of the carrier sheet inwardly from an opposite marginal area of the roofing membrane by a width of the overlapping region; and a peel-off film placed over each of the bitumen strips before laying of the roofing membrane.