Combining Rockwool and Polyiso
There is a vapor barrier against the outer wooden walls, I’d like to put rockwool in the 4 inch gaps – then I was hoping I could put 2 inch r13 or r10 poly iso-over the studs to get me towards our 30 or our 25 which would make the structure much more usable in this climate. Do you see any problems with this approach I have a ridge vent and soffit mounts on the eaves..
The walls I thought could just be a Louan poplar finish adhered to the poly iso as I don’t need them to be heavily weight-bearing, I’m wondering adhering the poly iso-to the studs would you use liquid nails or some kind of adhesive or could I screw through?
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