Closed-cell spray foam insulation is one of the most efficient insulating materials commercially available, with aged R-Values above 6.0 per inch. The description “closed-cell” comes from the cell structure of the finished insulation material.
One cubic inch of polyurethane foam insulation contains millions of tiny plastic closed cells filled with Enovate® 3000, a non-ozone depleting blowing agent. The blowing agent is captured within the cells which contributes to highly efficient insulating properties. In addition, closed-cell foam provides an inherent air barrier with low moisture vapor permeability, and excellent resistance to water.
The density for closed-cell spray foam is approximately two pounds per cubic foot. The medium density foam provides sheer and racking strength to wall assemblies in building applications.