Detailing a house-to-pool passageway
A question about moisture control and mechanicals placement in an enclosed breezeway/hallway connecting an indoor pool space to the main house.
We’re building a new house in upstate New York (climate zone 5) in the near future, and are planning a 4-season lap pool. The pool will be about 6’x32’ (4’ deep) and housed inside of a roughly 36’’x10’ semi-detached enclosure. The enclosure will have PERSIST walls and roof, with the 10’ southern facing wall mostly glass. We’re planning to heat the pool with a heat pump, as the pool will be small, enclosed, reasonably well-insulated, and acting as a thermal mass for any of the solar gain we can get through the glazed southern face.
The main house is planned with dense-packed double-stud walls. The inner wall will be load-bearing with air-sealed sheathing and treated more or less as a service cavity (possibly with some batts). The outer wall will be a 2×3 wall wrapped with permeable WRB to hold in the insulation. We haven’t made a final call on cladding, but leaning toward fiber-cement.
We’re planning to connect the pool to the house with a short hallway/enclosed breezeway with doors on either end to allow sheltered passage from the house to the pool while keeping the moisture load of the pool enclosure somewhat separated from the house. The pool mechanicals will also go in this space.
The question is, how should we construct the breezeway? We lean toward PERSIST for simplicity, and because the hallway will contact the pool enclosure. In either case, how should we detail the doors and the connections between the walls on either end to make sure moisture isn’t communicated from the pool to the house? We are hoping the heat pump will help with dehumidifying the breezeway space if and when moisture from the pool infiltrates the space.
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