Exterior Rigid Foam & WRB
I am retrofitting a small house and going back and forth on the order of my 1.5″ EPS rigid foam & WRB/air tight layer (Solitex Mento 1000).
From the inside to the outside, I was planning on having the full assembly be:
Intello Plus air barrier
Existing 2×4 stud wall w/ dense packed cellulose
Solitex Mento 1000 WRB/secondary air barrier
1.5″ EPS rigid foam board
3/4″ rain screen
horizontal lap siding
But should I switch the EPS and Solitex? I believe I’ve read that the order of those two won’t effect anything, and it’s a preference/detailing decision. Can someone help confirm that is true? Or correct me if I’m wrong?
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