Vapor retarder / Discussions

...vapor barrier between the concrete walls and the 2x4 studs. The space behind the rim joist is insulated with 1" rigid foam (the pink stuff) and then covered by a very thin layer of spray foam. I plan to keep the current vapor barrier and wood studs for financial reasons, put mineral wool between the studs, then cover i...

...vapor retarder or vapor barrier on the warm side of the insulation, meaning you need to install it at the top of the joist cavity before the insulation. There can be a few ways to do that, but before I can advise any, will that vapor barrier also be the air barrier? There is a difference between the two, read more here...

...vapor barriers was originally to prevent moisture accumulation and damage in walls, which it does above grade, but below grade a vapor barrier CAUSES moisture accumulation and rot. It’s a bit late now I guess, but what you should probably do if you can is see about cutting holes in the vapor barrier to let the moisture...

...retarder and two-thirds outside.  Would it make sense to put up one layer of insulation before wrapping with vapour barrier, and then two (or three) more layers outside?  Thank you. Where are you located? I see the word ‘vapour’ with a U in it which is indicative of Canada, in which case it is a likely yes, the vapour ...