Combined waterproofing sheet and protection course membrane
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United States of America Patent
Stats
-
Aug 10, 2004
Grant Date -
Jan 23, 2003
app pub date -
Sep 18, 2002
filing date -
Jul 16, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A combined waterproofing sheet and protection course membrane has a water resistant film and a protective layer. The protective layer protects the film from being punctured and otherwise compromised. An adhesive layer, with a free adhesive side for adhesion to a foundation, is adhered to the film, so that the membrane can be applied to a subterranean foundation in a single step. While the foundation is being back filled, the protective layer keeps the water resistant film intact thereby maintaining the water resistant capabilities of the membrane.
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