Open Cell Spray Foam

R-Value: Generally around 3.5 to 4.3 per inch, suitable for building envelopes, with 2x 6 walls achieving roughly R19-R21.

Cost: Often more cost-effective for residential projects compared to closed-cell.

Moisture: Being porous, it can absorb water, making it unsuitable for below-grade or high-moisture areas.

Application: It is typically applied by professionals to the interior, conditioned side of a space, taking about 2-3 days for installation, which includes trimming the excess.

Performance: Excellent for air sealing and noise reduction, but requires a, vapro barrier in certain climates