Irregular rafter spacing
My 1907 house has 2" x 4" rafters on 34" centers. After stripping to roof to the original 1 x 4 skip sheathing, I am planning to add 6" of polyiso foam and then a layer of plywood sheathing. The scrap rate is high if I have to cut every sheet to 48 x 70". Is there a precedent for using tongue and groove roof sheathing (assuming I can find it locally) without the seams landing on the rafters in this sort of application?
Posted Jul 29, 2014 12:47 PM ET
Edited Jul 29, 2014 1:08 PM ET
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Is it OK to step the slab thickness over the footings to accommodate insulation between the slab and the footings?