Details of Double Wall for Exterior Wall Plumbing
Climate Zone 6/7
I am wondering about some details for a potential floorplan that would involve some exterior wall plumbing (bathroom, washer/dryer). Heated slab foundation. 2×6 exterior walls. If I were to build an additional 2×4 wall inside of the exterior 2×6 wall for the purpose of running the plumbing, does that effectively mean that the plumbing is no longer in an exterior wall? What would the details of this look like? Would the exterior 2×6 wall need taped drywall to create the proper barrier, then build the 2×4 wall inside of that for the plumbing?
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