Closed-Cell Polyurethane spray foam is:
Closed-Cell is best used for insulating:
Open-Cell Polyurethane spray foam is:
Open-Cell is best used for Insulating:
Although both great insulators, Closed-Cell spray foam is used to insulate a wider range of applications and is a more effective insulation product. However when price becomes a factor Open-Cell spray foam wins that battle. Closed-Cell spray foam is significantly more expensive than Open-Cell.