09-22-2016, 10:37 AM
May seem like a dumb question, but if you build using t1-ll as both your exterior wall sheathing and also your siding. (which I believe is still code, at least it is on CA), should you install vinyl windows over or under the t1-l1? These will not get a lot of direct rain, so a bead of good caulk under the lip should make them waterproof.