Multilayer polyurea insulated roofing system
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United States of America Patent
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Issued Date -
Nov 3, 2005
app pub date -
Apr 30, 2004
filing date -
Apr 30, 2004
priority date (Note) -
Abandoned
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Abstract
The present invention relates to a multilayer polyurea roofing system. An important aspect of the invention is the use of multilayers of polyurea with the base layer having a minimum thickness of 40 mils, thus forming a waterproofing membrane. The multiple layers of polyurea provide increased structural strength, as well as reduce failures caused by applicator error. Moreover, in applications where the polyurethane is applied to insulation board stock, the polyurea membrane is isolated from movements between the base insulation and the roof deck (i.e., wood, metal, concrete decking).
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Cited Art Landscape
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