Using Spray foam is an energy efficient solution to insulating and air sealing interior and basement walls and ceilings. Spray foam offers high R-values and functions as an air barrier at typically installed thicknesses. Spray foam can be applied inside the wall cavity, on the exterior side of the sheathing, or on either side of the basement wall. Both applications provide excellent performance.
Energy Efficiency of Spray Foam Interior Cavity, Exterior, or Basement Insulation
Spray foam is applied on-site and expands during the application process to conform to the unique shape of each wall. This process ensures that foam fills void spaces, maximizing its thermal performance and providing a barrier to thermal bridging. Plus, at typical thicknesses, spray foam functions as an air barrier. Reducing the infiltration and exfiltration of air keeps valuable conditioned air inside the home and unwanted cold or warm air out! Insulating and air sealing with spray foam helps keeps the temperature inside your home more consistent and reduces drafts and cold spots.
An added benefit of spray foam is a reduction of sound transmission. Insulating exterior walls with spray foam can reduce noise, because some sounds, particularly higher frequencies, move through gaps and cracks in a home. A quieter home is more comfortable.