Waterproofing method by using plastic panels
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United States of America Patent
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Apr 15, 2003
Grant Date -
Nov 15, 2001
app pub date -
Apr 20, 2001
filing date -
Apr 20, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved waterproofing system for the concrete slab of a flat roof on a building is disclosed. The waterproofing system uses hollow plastic panels of designed size, different thickness, and groove and tongue joints for interconnecting the panels. A supplementary waterproofing layer may be installed using sheet membrane materials such as asphalt sheet, metal sheet and other sheets on vertical surfaces, especially the parapet of the roof. The invention further concerns a construction method for applying a fiber mesh reinforcement on the connection joint and for applying fluid-applied materials on the substrate with sheet membrane layers on vertical surfaces. The waterproofing layer of sloped step type, hollow plastic panels of different thickness, permits fast drainage of stagnant water, which inhibits weather damage to the waterproofing layer.
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