Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Christopher Shepherd0
Date of Patent
May 28, 2019
0Patent Application Number
159080880
Date Filed
February 28, 2018
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An underlayment material made of a laminate of a nonwoven thermoplastic fabric having a dimensional stability of less than 1% when exposed to a temperature of 82° C. when tested in accordance with ASTM D 1204 in both machine- and cross-directions and a thermoplastic barrier layer provides a combination of an improved dimensional stability, resistance to sliding along a roof deck and protection as a moisture barrier when used in roofing and flashing structures.
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