Closed Cell Spray Foam Insulation R Value Chart

Closed cell spray foam insulation.

Closed cell spray foam insulation r value chart.

They sport an r value of 6 0 8 0 per inch of insulation about double their open cell foam counterparts. R value is a measurement of thermal resistance and measures the ability of heat to transfer from one side of an object to another. Two inches of closed cell foam will provide r12 r14 of insulation. The r value for closed cell is typically around 6 7 at 1 thick and varies by manufacturer.

Use the following chart to estimate an ideal r value for your insulation project. In comparison an inch of blown fiberglass insulation has an r value of 3 1 3 4 and. Closed cell spray foam insulation is vapor and air impermeable and is applied with a minimum of 2 on average with use on on interior and exterior building applications. 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.

R value is an important insulation term about measurement. Closed cell open cell spray foam r values. As always should you have any questions or require any assistance in planning your spray foam insulation job please contact us we are always happy to help. The r value is r 3 5 to r 3 6 per inch so filling a 2 4 cavity yields about an r 13.

Just like for open cell foam r values are additive. As a benchmark one inch of solid wood has an r value of 1. Both closed cell spray foam and open cell spray foam insulation can be used effectively in commercial building designs to allow the building to achieve energy efficiency and consistent performance. Closed cell spray foams are between 2 and 4 lbs.

The common denominator among varieties of insulation is the r value. It has a lower r value per inch than closed cell foam and is vapor permeable.