Product Guide
Blown Insulation
Spider insulation being sprayed into an open wall cavity
Photo: Alex WilsonThe best products...
- May be glass or mineral fiber insulation with formaldehyde-free binder
- Have Greenguard Gold or Indoor Advantage Gold certification
- May be sprayed or dense-pack fiber insulation
But watch out for...
- Phenol-formaldehyde and urea-formaldehyde foamed insulation
- Spray polyurethane foam (open-cell or closed-cell)
