Closed Cell Spray Foam Insulation R Value Chart

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 insulation r value chart.

R value is a measurement of thermal resistance and measures the ability of heat to transfer from one side of an object to another. 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 for closed cell is typically around 6 7 at 1 thick and varies by manufacturer. Closed cell spray foams are between 2 and 4 lbs.

The common denominator among varieties of insulation is the r value. When applied on the interior open cell spray insulation provides performance advantages that differ from those of closed cell spray foam used on the exterior. R value is an important insulation term about measurement. Two inches of closed cell foam will provide r12 r14 of insulation.

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. It has a lower r value per inch than closed cell foam and is vapor permeable. Closed cell open cell spray foam r values. In comparison an inch of blown fiberglass insulation has an r value of 3 1 3 4 and.

They sport an r value of 6 0 8 0 per inch of insulation about double their open cell foam counterparts. Closed cell spray foam insulation. Closed cell foam r6 r8. It measures the effectiveness at stopping energy loss by way of conduction one of the 3 forms of energy transfer.

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. Use the following chart to estimate an ideal r value for your insulation project.