Closed Cell Spray Foam R Value Chart

Two ingredients conventionally called a and b components are mixed on site using special equipment mounted in a trailer.

Closed cell spray foam r value chart. 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. Using spray foam products. Made with plant based products such as soy eco spray foam is more eco friendly. R value is an important insulation term about measurement.

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. 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. 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. It has less chemical off gassing during application.

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. Standard formula and class i flame retardant formula. It measures the effectiveness at stopping energy loss by way of conduction one of the 3 forms of energy transfer. In comparison an inch of blown fiberglass insulation has an r value of 3 1 3 4 and an inch of blown cellulose in an attic has an r value of 3 2 3 7.

Closed cell foam r6 r8. The closed cell spray foam stops air infiltration and provides about an r 5 per inch. 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. 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. The standard formula provides an r value of 7 7 at a one inch thickness recommended for most commercial and industrial applications the standard formula is ideal for air sealing wall or ceiling insulation. Most spray polyurethane foam is called two component foam. About closed cell spray foam.

Closed cell spray foams are between 2 and 4 lbs. As a benchmark one inch of solid wood has an r value of 1. It has a lower r value per inch than closed cell foam and is vapor permeable. Closed cell open cell spray foam r values.

Just like for open cell foam r values are additive. R value is a measurement of thermal resistance and measures the ability of heat to transfer from one side of an object to another. The r value is r 3 5 to r 3 6 per inch so filling a 2 4 cavity yields about an r 13. Versi foam 2 lb closed cell spray foam insulation kits are available in two different formulations.

Products with a higher r value provide greater insulation.