Closed-cell spray foam and Roxul insulation
I am building a new house in zone 6A and would like to know the pros and cons of using 2″ of closed-cell spray foam along with 3″ of Roxul inside the wall cavity as well as 1.5″ of EPS on the exterior with a building wrap on top (furring with steel siding on top of the EPS and housewrap).
This is the method my building inspector has recommended and I want to know what everyone thinks. Thanks in advance.
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