Yes — spray foam insulation is safe once it’s properly mixed, applied, and fully cured by a trained professional, and once it’s cured, it’s chemically stable and doesn’t continue “off-gassing” the way some homeowners worry it might. The real safety considerations aren’t about living with cured spray foam long-term; they’re about how it’s installed and by whom. Here’s what actually matters, based on guidance from the U.S. Consumer Product Safety Commission (CPSC) and EPA. What Is Spray Foam Insulation Actually Made Of? Spray polyurethane foam (SPF) is a two-component system: an isocyanate (“A-side”) and a resin blend (“B-side”) that includes

If you’re comparing insulation options for a home in Fairfield, New Haven, or Litchfield County, the choice usually comes down to two types of spray polyurethane foam: open-cell and closed-cell. Both outperform traditional fiberglass or cellulose in terms of air sealing, but they behave very differently once installed — and picking the wrong one for a given space can mean paying for performance you don’t get. Here’s how they compare, and where each one makes sense in a Connecticut home. What’s the Difference Between Open-Cell and Closed-Cell Spray Foam? Open-cell foam is lighter, spongier, and more flexible because the tiny