Ceramic Tile Advice Forums - John Bridge Ceramic Tile - View Single Post - efflorescence. is the vapor barrier compromised?

dhagin · 03-26-2016, 11:34 PM

Interesting Fred. Could a test positive for nitrates be from dirt on top of a properly functioning vapor barrier?

03-26-2016, 11:34 PM	#2
dhagin builder, anti-builder, rebuilder -- Retired Moderator Join Date: Mar 2009 Location: oahu Posts: 13,164	Interesting Fred. Could a test positive for nitrates be from dirt on top of a properly functioning vapor barrier? __________________ dana "the road to hell is paved with osb, mastic, pre-mixed latex 'grout' or 'thinset', "