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Old 03-29-2024, 07:35 PM   #495
Bill Bumface
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Originally Posted by Bill Bumface View Post
I asked a pro to do it while they were doing other stuff and they basically said "not enough room, no thanks".

The foundation wall itself is treated, so not terribly concerned about moisture. I'd put vapor barrier on the inside face of the wall to prevent condensation.
Found someone to do it! Beyond Foam came in and basically just quotes it by area. Probably more expensive than a smaller outfit, but meh - 10 year interest free Justin loan.

I'm going to insulate inside the wood foundation myself. It is configured like so:

[outside dirt] -> [old failing concrete foundation] -> [packed gravel] -> [vapour barrier] -> [treated plywood] -> [stud cavity] -> [wall panelling].

I assume the vapour barrier is essentially "exterior" here, but it's complicated, because of the warm air that can still reach that gravel layer.

Should I just throw in some rock wool with no further vapour barrier? Any other ideas?
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