Closed Cell Spray Foam Insulation R Value Chart

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 insulation r value chart.

It measures the effectiveness at stopping energy loss by way of conduction one of the 3 forms of energy transfer. Two inches of closed cell foam will provide r12 r14 of insulation. 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.

Just like for open cell foam r values are additive. Closed cell open cell spray foam r values. Closed cell spray foam insulation. 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.

Most spray polyurethane foam is called two component foam. If you want to install spray foam in a stud wall and price is no object then it would seem to make sense to specify closed cell spray foam right. The r value is r 3 5 to r 3 6 per inch so filling a 2 4 cavity yields about an r 13. 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.

The closed cell spray foam stops air infiltration and provides about an r 5 per inch. Insulate rim joists and other large areas with this product meant for big jobs. The common denominator among varieties of insulation is the r value. Closed cell spray foams are between 2 and 4 lbs.

They sport an r value of 6 0 8 0 per inch of insulation about double their open cell foam counterparts. Made with plant based products such as soy eco spray foam is more eco friendly. Products with a higher r value provide greater insulation. It has a lower r value per inch than closed cell foam and is vapor permeable.

Closed cell spray foam provides a higher r value per inch 6 5 than less expensive insulation types like cellulose and fiberglass 3 5 to 3 7. With foamed in place insulation it is relatively easy though not inexpensive to fill wall and ceiling cavities completely. The r value for closed cell is typically around 6 7 at 1 thick and varies by manufacturer. 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. 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. Open cell spray foam has an r value of about r 3 7 per inch while closed cell spray foam has an r value that may be as high as r 6 5 per inch.