What is Closed-Cell Spray Foam?
Closed-cell spray foam is applied wet and expands in place, filling gaps and cavities to form a continuous air and moisture barrier. It is one of the most efficient insulation systems available and provides the highest R-value per inch of any spray-applied product we offer.
At approximately two inches of thickness, the foam achieves a vapor barrier, reducing the need for a separate membrane.
R-Value
Highest per inch
Vapor Barrier
At ~2 inches
Type
Closed-cell
- One of the most efficient insulation systems available
- Provides the highest R-value per inch
- Achieves a vapor barrier at approximately 2 inches thickness
Commonly Used In
Exterior walls
Ceilings above heated spaces



