Bituminous roofing membrane, and method of joining two roofing membranes

摘要

A roofing membrane, includes a bottom layer of meltable non-woven plastic or other meltable plastic layer, a first layer made of bitumen, in particular elastomeric bitumen, a carrier sheet made of non-woven or fabric having tensile strength, a second layer made of bitumen, in particular elastomeric bitumen, a top layer having a marginal area suitable for welding to an overlapping marginal area of a bottom layer of a following second such roofing membrane, a bitumen strip exhibiting self-sticking properties in cold condition and positioned at the marginal area of at least the bottom layer or the top layer, and a peel-off film placed over the bitumen strip before laying of the roofing membrane.