Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. It only takes a minute to sign up.
Sign up to join this community
I've recently built an addition and over ordered sub floor so the result is I have enough sub floor (3/4" tongue and groove OSB) to do a good amount of exterior sheathing.
My question however, should I? Are there consequences other than the sheer cost of the lumber to actually using this heavy grade of OSB on a 2x4 exterior wall or will it just produce a tighter, more insulated wall?
Structurally, it's not a problem. If there are windows, you may need bigger trim (surround) by 1/4". (By the way, most residential walls need to be 2x6 construction due to the energy code.)
