What is the best way to insulate a 2x4 wall from the outside in a cold climate?
...wall assembly alone, install peel and stick wrb, then add 4" comfortboard, then 1" strapping, siding.
i want to improve air sealing and thermal performance of the walls, but I don't want to create a moisture trap. I have seen a few people add 2" ridgid foam to the outside, and think that will have moisture issues in be...