0.5 lb Open Cell spray foam offers significant energy savings by providing airtight insulation seal. Open-cell spray foam insulation serves as an excellent e air barrier but does not qualify as a vapor barrier.
The 0.5 lb spray foam insulation is spray-applied and can expand up to 100 times its original size. This type of SPF is the most cost effective alternative. It also helps prevent mold growth and offers outstanding noise reduction due to the materials softness.