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Residential Sheathing Square Edge R- 3 , 0.55-in x 4-ft x 8-ft Faced Polystyrene with Sound Barrier Board Insulation

STYROFOAM Residential Sheathing Square Edge R- 3 , 0.55-in x 4-ft x 8-ft Faced Polystyrene with Sound Barrier Board Insulation

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I wasn’t clear on my first question.can this be used under the floor of a house on pier and beam,to insulate floor?


DuPont Styrofoam Residential Sheathing can be used to insulate an area when it is not going to be subject to compressive loads. i.e. walls, rafters, etc... It should not be used in a situation where it will be subject to a load of some kind. i.e. floors

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