Double stud wall with plywood panel siding
I recently purchased a house in climate zone 7 in Alaska and was planning on upgrading in the insulation on the house (built in 1990). I have been reading quite a bit about double stud walls and really like the performance to cost ratios. One thing I am really worried about is moisture. I have lap siding on the front of the house (which I assume has some type of rain screen) and plywood panel siding on the other three walls. I believe the plywood panel siding was also used as the sheathing for the exterior walls.
Should I be concerned about moisture build up on the panel siding? all of the diagrams I have seen so far usually have sheathing with an air gap and then siding.
Currently my plan is:
1. 1/2 plywood panel siding.
2. 2×6 16 in. on center exterior wall.
3. R23 rockwool
4. 2×4 16 in. on center interior wall.
5. R15 rockwool.
6. Intello plus membrane
7. 1×2 furring strip.
8. 5/8 drywall.
any recommendations are appreciated. Thank you!
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