Foam-In-Place Insulation: 7 Tips for Getting Injection and Spray Foam Right @generalcoatings
There are two ways to site-install foam insulation: injection and spray. Injecting foam is most often done in closed cavities in retrofit applications; spray foam is most often done in open cavities and in new construction. The formulations and methods of installation are different for closed-cavity and open-cavity foam installations. Photos: Henri Fennel (L); Peter Yost (R) One of my first research projects when I started at the NAHB Research Center in 1993 was looking into a new insulation: Icynene. We were evaluating its performance as a spray-applied, open-cavity insulation as well as an injection foam in closed cavities. I was enamored: this seemed to be a miracle insulation that installed itself, sealing up tight even in the toughest and most complicated building cavities.