Non-typical installation of XPS and 8 ft. wall with 9 ft. ceilings
I am in the early stages of framing up a basement wall. Exterior of foundation is almost all exposed. I plan on 2″ xps, backed by a 2×4 stud wall, then possibly filled with insulation.
I originally wanted to have the rim joist accessible for future leak detection and planned to incorporate a perimeter soffit for wiring/ and access. This would give a finished tray cieling for the basement. And still have 9ft in the center of the room.
I now have concern that possible condensation on this 12″ of exposed concrete is going to cause problems. Will it even condescending if no insulation is covering it? Will the room temp transfer into the soffit and keep the dew point where it needs to be to not condesate?
It sounds silly, but I am not overly concerned about the 12″ of uninsulated space. It is inefficient, but so it the other 25% of the storage area in basement that will. Not be insulated.
If thus doesn’t make sense I can explain further.
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