Water vapor barrier for a concrete flooring system
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United States of America Patent
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May 8, 2012
Grant Date -
Oct 1, 2009
app pub date -
Mar 24, 2009
filing date -
Mar 27, 2008
priority date (Note) -
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Abstract
A water vapor barrier material for a building structure includes a base entangled net material and a composite nonwoven. The composite nonwoven includes a film layer with a nonwoven layer on each side of the film layer. The film layer has a water vapor transmission rate of less than 10.0 g-MIL/100-in2/day at a temperature of 100 degrees Fahrenheit and 90 percent relative humidity.
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