Pros and cons of using 1″ foam for exterior wall thermal break
I am building a garage in Northern Wi and want to use Tuff R against OSB sheathing. The insulation will be an additional 3″ of foam board in the cavity wall. (2×4) Some living spaces are involved, but moisture from occupation should be minimal as the building is not plumbed. Walls will be sealed inside and an interior vapor barrier used. Caulking applied to all exterior stud joints. I want to apply a vapor barrier between the OSB and the foam for release of moisture. I am thinking of using 15 felt which is typical for stucco installations. Any experience with this type of construction out there?
GBA Detail Library
A collection of one thousand construction details organized by climate and house part