Mineral Wool in Ceiling Cavity With Rigid Foam to Interior
Is it okay to use mineral wool insulation in ceiling cavity between framing with a few inches of rigid foam bellow on the interior side of ceiling framing? The house will also have an intello vapor retarder. Just trying to get a higher R value in the ceiling. Is this an ok ceiling design?
Zone 5. With a small attic space. Vented at the ridge and will try to put in venting at eaves as well.
Anything wrong with this plan?
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