Tech Today

TPO developments or lack thereof


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 TPO membranes.

ASTM D6878

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 the roofing industry.