Ask your questions pertaining to the interior that don't fit in the above categories
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I was thinking batt or perhaps Rockwool (Roxul) as I've seen you mention in the past. Then I'd assume I put some wood blocking in between the wood face above poured cement and the first joist? Someplace to affix the wall header? Would I cover this stuffed cavity with plastic or let it breathe?
Yes use some short wood blocks between the joists. Attach the top wall plate to the blocks, after wall is insulated the poly air/vapour barrier will come up the wall and across the ceiling and get sealed to the bottom of that over head joist
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