Hi all, 

Based on BD+C reference guide, it appears all materials installed to interior side of vapor barrier need to comply. However, I am finding it challenging to locate roof underlayment/cover board selections that indicate they are LEEDv4 compliant (have TVOC testing / related certifications on file).

Has anyone else had luck locating more than 1 option for TVOC tested roof underlayment/coverboard for use in membrane systems?