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Is perimeter insulation required for slab-on-grade construction in cold climates?

April 26, 2017climates cold Construction insulation perimeter slab-on-grade

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Is perimeter insulation required for slab-on-grade construction in cold climates?

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Install it from the top of the slab to the bottom of the frost line unless a termite inspection gap is required. Perimeter insulation is not required but is a good idea. There are termite inspection issues in some places.