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Closed-cell spray foam insulation is solid, as the cells of the bubbles remain intact, which makes the product rigid. The cells are filled with a gas that makes the R-value higher than that of open-cell foam. Closed-cell foam has varying degrees of hardness, depending its density, but is typically 1.5 pounds to 4 pounds per cubic foot.
 We install closed cell spray foam insulation from CertainTeed:
CertaSpray™ Closed Cell Foam
CertaSpray closed cell foam insulation is part of the insulation line from CertainTeed. As a spray foam insulation, CertaSpray works as an insulator and seals air leaks. CertaSpray foam is designed for use in either whole-house applications or in combination with fiberglass insulation.
CertaSpray delivers:
- A high R-Value and minimizes hot and cold spots in a home to improve efficiency and comfort.
- Its rigid form offers added structural support to walls.
- As a secondary moisture vapor barrier, it helps reduce the risk of moisture intrusion in the wall cavity.
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