Summary: Spray foam insulation can serve as a useful energy conservation tool. Although spray foam is sometimes more expensive than conventional fiberglass batts, some foam types provide almost double the insulating value of fiberglass. Spray foam can fill odd-shaped spaces, and certain varieties can also function as an air barrier and vapor retarder. However, the spray foam products on the market each have different characteristics and may increase fire hazards, so it is important to determine the correct spray foam for your project.
Date Revised: 08/27/2021