Roxul batts and Roxul Comfortboard insulation without plywood?
I’m building a timber frame house in Vermont and was thinking of using Roxul batts in the 2×4 stud walls (studded between the posts). Then putting 2″ of Comfortboard on the exterior, then strapping vertical and horizontal for cedar shingles.
One question I have is that since I’ve made the timber frame so rugged and stiff, (I have hardwood 3×5 bracing going from close to the post tops down to the sill, it is not moving), I decided not to have plywood or rough-cut boarding on the frame. Is there any problems with this with air or vapor passing through?
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