Climate zone 7a building on helical piles – how to insulate floor?
I’m building a house in climate zone 7a on helical piers. Ideally, high enough up to allow for parking and a patio underneath.
We’re going for a hybrid wall of continuous exterior insulation (rigid mineral wool R15) > vapor/air/water barrier> and mineral batt (R13) in the 2×4 stud wall. That’s not complicated, but how do we incorporate the floor system into the building envelope and how do we insulate and airseal it? I have looked at diagrams for the floor, but I haven’t found any for climate zone 7a or with continuous exterior insulation.
An occupant is highly, highly sensitive to indoor molds.
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