This is how we do it around here, lot of hacks don't but this is the best way. Believe you need at least 2 inches of foam to count as a vapour barrier, or exceed what would put the dew point in your wall, at least thats what inspectors want around here. Just speak to your local building agency and see what they require before you do anything.
jam1324 t1_iyajyr2 wrote
Reply to comment by strongmans in Plan to frame part of basement and have a few questions by Ad-Nauseam91
This is how we do it around here, lot of hacks don't but this is the best way. Believe you need at least 2 inches of foam to count as a vapour barrier, or exceed what would put the dew point in your wall, at least thats what inspectors want around here. Just speak to your local building agency and see what they require before you do anything.