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US 7,037,864 B2Granted
Integral waterproofing membrane
OwnerDenis Faucherinventor
Life of this patent
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Abstract
An integrated waterproofing membrane is provided which comprises a performed waterproofing material layer covered on one major face with a adherent impervious material liner, and on the other major face with an adherent porous support sheet. The integral waterproofing membrane of the present invention allows for application without releasing of a layer even using a warming source for the application on a surface to be waterproofed.
Claims7
A waterproofing membrane to be applied on a substrate comprising a middle layer of bitumen based waterproofing material having opposite first and second sides and having a thickness of from 0.5 to 4 mm;
- layer of impervious surfacing material directly adhered to said first side of the middle layer;
- a support sheet layer made of a porous material and having a first and second surface with the first surface directly adhered to the second side of the middle layer by means of the waterproofing material transuding partially into the pores of the support sheet;
- and an adhesive coating to be initially transuded into the pores of the support sheet and to be adhered to the substrate.
Dependencies are inferred from the claim text.