Air sealing rim joists
getting even closer to finishing my attic insulation. I pulled up some of the sub floor boards around the perimeter. On a cold and windy day I can stick my hand in there and feel the air flowing!
whats the best way to seal this? Keep in mind that it’s a little tight in there. I tried just spray foaming the gaps in a few bays and didn’t feel air flow afterwards. Could I just do this for the rest of them?
before I put those floorboards back, would it be worth stuffing some old rock wool insulation batts against the brick? I have a bunch of old batts that I pulled out of the rafters that I’d love to repurpose.
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