Importance

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Abstract

Protective waterproofing membrane particularly for exterior and/or interior coatings, of walls and pavings generally, of the types made in plastic material and comprising a plurality of protrusions all of the same side, in which, limited to the overlapping area or along the vertical junction edges, protrusions (2, 2') are provided having a different configuration in respect to the remaining surface of a sheet from a pre-determined width, said protrusions constituting respectively a male and female closure provided with a seal, which development requires both on the left and right side, an ensemble of cylindrical forms joined in groups of five, where one or the other provides a series of forms (5) also cylindrical but of a smaller diameter to the preceding and interposed in rows that are vertical to said groups.

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First Claim