We may earn revenue from the products available on this page and participate in affiliate programs. Learn More › A worker sprays foam insulation onto rafters in an attic. Highlights The typical cost ...

Closed-cell polyurethane spray foam has some pretty awesome qualities. It has a high R-value. Its resistant to water, mold and insects. It expands into hard-to-reach nooks and crannies. Heck, it can ...