Rim joist between 2 conditioned spaces, 2nd story floor
derekr
| Posted in General Questions on
With a 2 story house does the 2nd floor rim joist need to be air sealed with rigid foam the same as a rim joist is done in a basement?
or can I just use rockwool batts for the 2nd floor rim joist like in my walls?
im also in zone 3 if it makes a difference, I rather just use rockwool since I have plenty of it and will be easier diy if it’s safe to do
i asked this question earlier but wanted to change the title to be more specific
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Replies
The other problem with this area is it’s going to be hard to air seal with rigid foam because I have a lot of wiring from outlets and lights coming up to the top of this wall, if the 2nd story rim even needs to be air sealed I’m not sure