The December 2010 meeting of ASTM International Committee D08 on
Roofing and Waterproofing had the potential to bring about
meaningful improvement to the U.S. product standard for TPO
membranes. However, the meeting ended without a consensus, no
change to the TPO product standard and no new guidance for users of
The U.S. product standard for TPO membranes is ASTM D6878,
"Standard Specification for Thermoplastic Based Sheet Roofing."
It originally was published in 2003 and arguable, is one of the
least stringent product standards in...
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