The Green Cocoon
Soy-based Spray Foam, Cellulose, and Denim Insulation
141 Bridge Road, Salisbury, MA 01952
No. Independent studies show that polyurethane spray foam installed 50 years ago is still 100% effective. The only thing that degrades spray foam is exposure to ultraviolet light, which turns the foam orange and then it dries out and crumbles.
