Sub slab insulation
Looking for some thoughts on sub slab insulation on a new build. I am in zone 5 central Indiana. Right now we are planning to build slab on grade with insulation on the inside of the stem wall. The house will be double stud wall roughly r40 with r6o ceiling. The house will also have all exposed concrete floors. I realize that no matter what i do the floors are going to feel cool but I am wondering how much insulation under the slab would help with my house heating load as well as the way the slab feels. Planning to heat and cool the house with a pair of mini split heat pumps. Thanks for any feedback.
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