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    Evaluating Polymeric Roofing Membranes for Linear Dimensional Stability

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    Currently available polymeric roofing membranes are ordinarily evaluated in a battery of tests that are hopefully indicators of in-situ performance. Field performance of some products has suggested that dimensional stability may be important among these. The test for such a property (ASTM D-1204) is a hot air bath environment for measured membrane samples. Presently, test environments are selected by manufacturers and range widely in the market. To promote congruency in testing/reporting, a scale is proposed for future testing within categories defined by generic polymer type.


    Thermoset, Thermoplastic, Uncured Elastomer, Co-Polymer Alloy

    Author Information:

    Hogan, LD
    Certified Roof Consultant and Senior Engineer, Trigon Engineering Consultants, Inc., Greensboro, North Carolina

    Committee/Subcommittee: D08.21

    DOI: 10.1520/STP26554S