No vapor barrier for below grade concrete walls: water vapor from soil permeates through the concrete and will get trapped in the wall. From buildingscience.com: “Constructing frame walls, insulating the resulting cavity and covering with an interior plastic vapor barrier is common and often leads to odor, mold, decay and corrosion problems.”
wiseupyabuckejitt t1_j90u7xg wrote
Reply to comment by Cinderbolt77 in Do i need vapor barrier or can i leave it and drywall over it? by slickwrick21
No vapor barrier for below grade concrete walls: water vapor from soil permeates through the concrete and will get trapped in the wall. From buildingscience.com: “Constructing frame walls, insulating the resulting cavity and covering with an interior plastic vapor barrier is common and often leads to odor, mold, decay and corrosion problems.”