ASTM WK38091

    Revision of D6878 / D6878M - 11a Standard Specification for Thermoplastic Polyolefin Based Sheet Roofing

    (What is a Work Item?)

    Active Standard: D6878 / D6878M - 17

    Developed by Subcommittee: D08.18 | Committee D08 | Contact Staff Manager


    1. Rationale

    This revision to ASTM D6878 adds a statement that requires the thickness over the scrim (reinforcing fabric) be at least 30% of the overall thickness of the sheet. The intent of this revision is to require thicker membranes to have more thickness on the weathering side of the sheet.


    flexible sheet; roofing; roofing material; single-ply roofing membrane; thermoplastic polyolefin; TPO; Flexible sheets; Polyolefin (PO)--specifications; Roofing membranes--specifications; Single-ply roof membrane; Thermoplastic roofing/waterproofing materials--specifications;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:

    Technical Contact:
    Dwayne Wacenske

    Draft Under Development