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EERE » BTO » Building America » Solution Center Home » Image Gallery » Closed-cell spray foam insulates the floor above an open foundation; a protection board made of fiber cement is screwed in place under the floor joists to keep out pests

Closed-cell spray foam insulates the floor above an open foundation; a protection board made of fiber cement is screwed in place under the floor joists to keep out pests

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Closed-cell spray foam insulates the floor above an open foundation; a protection board made of fiber cement is screwed in place under the floor joists to keep out pests

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