Will high-density spray foam on the floor of a ventilated attic cause moisture problems in a hot-humid climate?
It’s an older home in northwest Florida, the insulation is on the floor of the attic, with a wood tongue and groove ceiling on the living space side underneath. I know that this type of closed cell foam stops moisture, so that could cause the insulation to have condenstation on top and make ceiling joists wet. Does this need to be fixed in some way? Is there a way to cut through areas of the insulation and perhaps replace those areas with open cell foam so that moisture can move through and dry to the inside of the home?
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