Active Standard: D6878 / D6878M - 11a
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.
Keywordsflexible 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;
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