PL419945A1 - Roof membrane, at least two-ply membrane - Google Patents

Abstract

The subject of the application is a roofing membrane (1) with at least two layers. The solution is used when sealing the space below the top layer of the roof, as a rule, inclined at an angle to the horizontal. The roofing membrane (1) is at least double-layered and occurs in the form of a flat surface (1 '), intended for laying on a roof truss using at least one adhesive strip (2) with peeled protection (3). The membrane contains layers (4, 5) of different basis weight, where a flexible additional layer (5) is attached to the excess surface layer (4) of the functional film, thermally insulating and at the same time or alternatively accumulating excess moisture. The additional layer (5) has a thickness per unit area of the membrane (1) at least twice as thick as the layer (4) of the functional film belonging to the additional layer (5). The additional layer (5) has surface contact with the layer (4) of the functional film, also through an additional adhesive layer (2 '). The excess layer (4) of the functional film is enveloped around the flexible additional layer (5) so that it covers one side (7) completely and through the thin both its edges (8) overlaps the other side (9) of the additional layer (5), forming the overlap (10) at least along the long edges (11 ') of the slope (1'), where at least one longitudinal edge (11 ') of the slope (1') is covered with an excess adhesive strip (2 '), which has a surface from below contact with both the layer (4) of the functional film as an overlap (10) and simultaneously with the additional layer (5) protruding from under the plant (10).