Polyurethane Spray Foam Insulation R Value

There are two types of polyurethane spray foam insulation.

Polyurethane spray foam insulation r value.

Thanks to thanks to andrew cole for correcting our data on this product. 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. 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. The bottom line is that spray polyurethane foam is better than any other type of insulation for reducing air leakage.

Multiple immediate passes with no wait time may also be applied. Spray polyurethane foam spf basics. For example closed cell spray foam depending on brand can offer an r 6 or r 7 per inch. For 6 inches r 15 or r 19 etc.

By expanding 100 times its original size icynene seals cracks and gaps in attics walls ceilings and other spaces where air might escape. 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. Polyisocyanurate polyurethane foam insulation r values. What is spf how does it work.

It has a lower r value per inch than closed cell foam and is vapor permeable. Low density foams are referred to as open cell spf while higher density foams are referred to as closed cell foam. 1 8 2 pound polyurethane foam has the highest r value of readily available spray foam insulation used in homes and buildings. Polyurethane is a closed cell.

Why spray foam insulation is so effective in meeting code requirements is that it has a higher r value per inch of product used than batts. Open cell foam is permeable to moisture but impermeable to air. 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. Closed cell spray foam insulation.

The r value is r 3 5 to r 3 6 per inch so filling a 2 4 cavity yields about an r 13. Closed cell spray foam r values. Expect an r value of about 3 6 per inch. 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. 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. Polyurethane spray closed cell foam insulation.

Insulation or other building material 9.