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R- 7.8 , 2-in x 4-ft x 8-ft Faced Polystyrene Board Insulation

Perma "R" Products R- 7.8 , 2-in x 4-ft x 8-ft Faced Polystyrene Board Insulation

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Can this be used under a house? my house is off the ground so i can feel cold air in the winter. if not any recommendations on what to use?


It can be used in a crawl space under the floor. There can be no utilities such as water heater, furnace etc.

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