Closed-cell foams resist water penetration and moisture build-up. Moisture can eventually attract bacterial growth, promoting mold, which can eat away at wood and compromise structural integrity.
Open Cell Spray Foam
Open cell foam gets its name from its structure: the cells that make up the foam aren’t totally closed off, unlike its cousin, closed cell foam.
Retrofit Foam Unjection
Unlike spray foam insulation that is sprayed into open wall cavities (mostly in new construction), injection foam insulation consists of drilling numerous holes into the existing wall.