“Our cellulose insulation runs about 84 cents per square foot,” says Harrah. “If I had a choice between fiberglass, foam, and ...

Spray foam insulation, which is airtight and in some cases can help control vapor, “is a very significant upgrade in performance over fiberglass batts and other common types of cavity insulation ...

Some potential alternatives to spray foam insulation include fiberglass batts, cellulose, mineral wool and rigid foam boards. However, each of these insulation types has different materials ...