Insulating a Pole Barn
I am a Builder and Remodeler in NW WA. I have a pole barn on my property which has my office and shop. It’s finally time to address the horrendous insulation situation. It has a slab floor, and standard horizontal 2×6 girts 24″OC.
Originally I planned to remove the metal siding, and install osb (with taped seams) with a WRB on top of that, and then re-install the siding. I am wondering about using 1″ EPS with the metallic faces, right on the 2×6 girts. (1″ because there are essentially no roof overhangs at all, Can’t go out much.)
I am wondering if this was detailed well, and taped, if a WRB would be necessary, and if so, would it go on top of the foam, or behind? On the inside, would that much foam be enough here, (4C) to stop condensation? I will likely add fiberglass batts on the inside, in vertical studs, and drywall (or plywood) wall finish. Any help clarifying my thoughts would be appreciated!
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