Polyurethane Spray Foam Insulation R Value

For example closed cell spray foam depending on brand can offer an r 6 or r 7 per inch.

Polyurethane spray foam insulation r value. Closed cell spray foam insulation. It is spray applied to a substrate and typically expands about 150 times its original volume to form a semi rigid flexible non structural plastic insulation. For 6 inches r 15 or r 19 etc. However because spray foam must be mixed on site and applied while wearing special protective clothing you must leave installation to the professionals.

Polyurethane spray closed cell foam insulation. Expect an r value of about 3 6 per inch. Insulation or other building material 9. By expanding 100 times its original size icynene seals cracks and gaps in attics walls ceilings and other spaces where air might escape.

Thanks to thanks to andrew cole for correcting our data on this product. There are two types of polyurethane spray foam insulation. 1 8 2 pound polyurethane foam has the highest r value of readily available spray foam insulation used in homes and buildings. Higher r value greater than 6 0 per inch r value approximately 3 5 per inch.

Aging effects comments. With high yield and excellent adhesion it s an. Spray polyurethane foam comes in a range of densities and cell structure. Icynene sprayed in foam is an insulation and air seal system that works to help ensure that your home doesn t suffer from air loss while providing an effective r value.

It has a lower r value per inch than closed cell foam and is vapor permeable. Polyurethane is a closed cell. Open cell spray polyurethane foam also sometimes referred to as low density or 1 2 pound spf weighs between 0 4 and 0 6 pounds cubic foot when fully cured. Spray polyurethane foam spf basics.

Multiple immediate passes with no wait time may also be applied. What is spf how does it work. Low density foams are referred to as open cell spf while higher density foams are referred to as closed cell foam. The r value is r 3 5 to r 3 6 per inch so filling a 2 4 cavity yields about an r 13.

Whether retro fitting a home or choosing insulation when building a new one spray polyurethane foam spf insulation is among the best ways to increase energy efficiency and improve comfort. Polyisocyanurate polyurethane foam insulation r values. Closed cell spray foam r values. Johns manville corbond iii closed cell spray polyurethane foam insulation offers and r value of r 7 per inch and can be applied in a single pass to a maximum of 3 5 inches providing superior thermal performance with seamless air sealing and moisture control in a single step.

Closed cell spray foam has a far better r value per inch than other less effective insulations like cellulose fiberglass or even open cell foam.