Waterproof membrane
AssigneeOwens-Corning Fiberglas Corporation
InventorsMichael G. Roberts, Charles E. Bolen, John L. Kane
Life of this patent
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Abstract
A membrane for waterproofing a building component, e.g., a roof or a basement wall. The membrane includes a first layer of asphalt-elastomer blend which preferably is self-adherent to the building component and an overlying layer of plastic film which bears at least one adhesive strip adhered to the plastic film. The membrane is in the form of elongated strips which are overlapped to cover the building component, and the adhesive of each strip ensures a waterproof joint between the laminae of the overlapped strips.
Claims13
A laminated water-impermeable membrane, comprising a base lamina of an asphalt-elastomer blend, a moisture barrier lamina of plastic film completely covering the base lamina, and at least one strip of asphalt-based adhesive along at least one edge of the membrane adapted for adhering adjacent membranes in overlapping relation.
In a building component including a substrate and a plurality of waterproofing membrane strips adhered to the substrate in overlapping relation, the improvement wherein said membrane strips each comprises a base lamina of an asphalt-elastomer blend, a moisture barrier lamina of plastic film completely covering the base lamina, and a strip of adhesive superimposed on the moisture barrier film lamina, said adhesive strip being interposed between the overlapped portions of adjacent membrane strips to ensure waterproof overlapped joints between the plastic film lamina of the lower strip and the base lamina of the upper strip.
Dependencies are inferred from the claim text.