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Can I use NCFI spray polyurethane to insulate an existing home?

existing Home insulate ncfi polyurethane spray
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Can I use NCFI spray polyurethane to insulate an existing home?

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Spray polyurethane insulation is used primarily to insulate new homes. This is because spray polyurethane must be applied to an open cavity. When spray polyurethane is injected into a closed wall cavity, the pressure of the expanding insulation may damage the wall.

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