20 MiL 7 layer VPB20 VaporBlock Vapor Barrier roll 10'x150' Commercial Grade. Order minimum of 2 rolls.

20mil, heavy duty vapor/radon barrier; superior resistance to gas and moisture. -- 7-layer co-extruded barrier made from polyethylene and EVOH resins -- Superior resistance to gas (methane, radon and other harmful VOCs) and moisture transmission -- Can be used as part of a passive or active control system extending across the entire building including floors, walls and crawlspace

20mil, heavy duty vapor/radon barrier; superior resistance to gas and moisture. -- 7-layer co-extruded barrier made from polyethylene and EVOH resins -- Superior resistance to gas (methane, radon and other harmful VOCs) and moisture transmission -- Can be used as part of a passive or active control