I am looking at putting rigid foam on an existing house prior to re-siding
I am on the eastern shore of Maryland (Marine Zone 4, I assume) and am looking at putting rigid foam on an existing house prior to re-siding. The walls are 2×4 and have paper-faced fiberglass batts installed in them that will not be removed. Will I have any issues?
The windows are being replaced as well so would it be better to have the foam face the water management plane or a WRB behind?
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