Interior Air Sealing and ZIP Sheathing
I see a lot of discussions on the importance of air sealing. Air tight drywall. Air tight electrical boxes. Foaming/caulking between sheathing and framing members in each stud bay. How important is any of this when your air layer is your external taped zip sheathing? Aside from what’s “best”, if you were building the house yourself, would you bother for example foaming the bay perimeters when using zip or is the zip sufficient? Is it mostly for air quality or is the concern wind washing insulation with interior air?
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