What’s the “Good Enough” wall assembly under cedar shingles?
I’m doing a major addition to our smallish house in the DC area of Maryland (Climate Zone 4). We are using cedar shingles (WRC) for siding, the shingles being installed over classic slicker by B. Obodyke, applied over Henry Blueskin VP100 applied to the 1/2″ 5 ply plywood sheathing. I would like to have a thermal break in the studs, and I would have wanted to use continuous foam on the exterior, but I don’t want to have to put a second layer of sheathing on the outside of the foam for the shingles. My options seem to be a double stud (2×4) wall structure with the appropriate gap, or a staggered double stud wall on 2×8 plates (which seems like more work and heavier walls to raise than doing a double stud wall). Any thoughts or advice while I’m at the drawing board? Thanks!
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