Spray Foam Insulation & Traditional Batts and Blown-In Smart Homes Use Foam!! ©2010 There is no better home insulating material that can seal your home from air and moisture intrusion, save on costly utility bills, strengthen your home, and protect your family’s health from dangerous mold than Spray Foam Insulation!! "Spray polyurethane foam insulation can be applied to a home under construction and will not only insulate, but will also reduce air leakage in the building envelope." US Department of Energy Insulation Fact Sheet, August 1997   "Spray polyurethane foam alone can provide an air and water- tight barrier." US Department of Commerce brochure, NISTIR4821