Polyurethane Spray Foam Insulation R Value

Multiple immediate passes with no wait time may also be applied.

Polyurethane spray foam insulation r value. Polyisocyanurate polyurethane foam insulation r values. With high yield and excellent adhesion it s an. Open cell foam is permeable to moisture but impermeable to air. 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.

Polyurethane is a closed cell. Spray polyurethane foam comes in a range of densities and cell structure. By expanding 100 times its original size icynene seals cracks and gaps in attics walls ceilings and other spaces where air might escape. Higher r value greater than 6 0 per inch r value approximately 3 5 per inch.

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. Aging effects comments. Expect an r value of about 3 6 per inch. There are two types of polyurethane spray foam insulation.

The bottom line is that spray polyurethane foam is better than any other type of insulation for reducing air leakage. Insulation or other building material 9. Low density foams are referred to as open cell spf while higher density foams are referred to as closed cell foam. 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.

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. 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. For example closed cell spray foam depending on brand can offer an r 6 or r 7 per inch. It has a lower r value per inch than closed cell foam and is vapor permeable.

Closed cell spray foam insulation. Thanks to thanks to andrew cole for correcting our data on this product. Polyurethane spray closed cell foam insulation. Spray polyurethane foam spf basics.

1 8 2 pound polyurethane foam has the highest r value of readily available spray foam insulation used in homes and buildings. For 6 inches r 15 or r 19 etc. Closed cell spray foam r values. 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.

What is spf how does it work.