Abstract: A sealing device including a waterproofing layer including at least one thermoplastic elastomer P1 and an outer layer of non-woven fabric directly adhered to at least portion of the second major surface of the waterproofing layer, wherein the outer layer of non-woven fabric including at least one polymer P2. Further, a method for producing a sealing device, to the use of a layer of non-woven fabric including or essentially consisting of polypropylene fibers for reducing blocking of a waterproofing layer including at least one propylene-based thermoplastic elastomer, and to a method for covering a roof substrate using the sealing devices of the present invention.

Abstract: A sealing device including a waterproofing membrane and a protective film including a backing layer, which is directly attached to at least part of the bottom surface of the waterproofing membrane. The invention is also directed to a method for producing a sealing device, to use of a protective film comprising a backing layer for reducing blocking of a polymeric membrane, and to a method for covering a roof substrate using the sealing devices of the present invention.

Abstract: The invention relates to a device for the heat sealing of plastic membranes that contain a nozzle attachment, with the nozzle attachment having an abrasive member and being held flexibly. Thus, the nozzle attachment is positioned with a defined force on the lower membrane that is to be heat sealed, resulting in a seam of consistently high quality.