Open Cell Spray Foam Insulation is a type of Polyurethane Spray Foam Insulation. As the name suggests, the physical structure of the foam plastic is comprised of “open cells”, or cell structures that are open, not solid. Open Cell Spray Foam Insulation is a two-component system that is sprayed using high-quality equipment to produce a liquid that expands up to 100x it’s original size in just a few seconds. During the expansion process, the spray foam insulation fills all gaps and voids in the framing, and creates an air-seal. This product, when sprayed at the minimum thickness specified by the manufacturer (typically 3-3.5″ thickness) qualifies as an air-impermeable insulation per the building code.

Because Open Cell Spray Foam Insulation is an air-barrier, the product qualifies to comply with the Building Code as a High-Performance Product. Therefore, prescriptive R-Values do not need to be meet — Energy Modeling can be performed to show compliance at lower R-Values without compromising on building performance. As an low-density product, typically 0.5lb per cubic foot, Open Cell Spray Foam Insulation provides excellent R-Value per inch for the cost of install, typically R-3.7/inch. The high R-Value per inch makes this product an excellent choice for your project!