Frequently Asked Questions

Spray polyurethane foam is a spray-applied coating that can form a continuous insulation and air sealing barrier on walls, roofs, and on all contoured surfaces. It is made by mixing and reacting liquid components at the job site to create foam.
Two pound closed-cell foam is the most effective, with an insulation value of around R-6.62 per inch of thickness. Open-cell foam is not as dense and has a R value of around R-3.7 per inch of thickness.
Open-cell foams are permeable to moisture and impermeable to air and has a sponge-like texture. It has a lower R-value so more foam is required. Open-cell usually also requires a vapor barrier. Closed-cell foams stop air and moisture. As it is denser and has a much higher R-value than open-cell foam, it will also add structural strength to the structure. If two inches or more is applied, it does not require a vapor barrier.
It is important to consider the different properties for each foam type for each application. Most projects in our state, because of our cold climates, closed-cell foam is necessary.
Closed-cell foams are resistant to water absorption, and are actually approved by FEMA as a flood-resistant material. Open-cell foams can absorb and retain liquid water at varying rates.
During and immediately following spray foam applications, fumes and mists are generated that can be hazardous to your health. Access to the work area during this time should be restricted to personnel wearing appropriate personal protective equipment. Once the foam has set, any hazardous fumes have dissipated and the location can be safely entered.
Industry standard has shown, past 6 inches of foam is not cost effective. We do not recommend more than 6 inches for the optimum return on investment.