Closed Cell Spray Foam R Value Chart

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.

Closed cell spray foam r value chart.

Standard formula and class i flame retardant formula. 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. It has less chemical off gassing during application. 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.

Made with plant based products such as soy eco spray foam is more eco friendly. 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 open cell spray foam r values. The r value is r 3 5 to r 3 6 per inch so filling a 2 4 cavity yields about an r 13.

The closed cell spray foam stops air infiltration and provides about an r 5 per inch. R value is a measurement of thermal resistance and measures the ability of heat to transfer from one side of an object to another. Using spray foam products. R value is an important insulation term about measurement.

Closed cell foam r6 r8. Most spray polyurethane foam is called two component foam. Products with a higher r value provide greater insulation. Versi foam 2 lb closed cell spray foam insulation kits are available in two different formulations.

About closed cell spray foam. Two ingredients conventionally called a and b components are mixed on site using special equipment mounted in a trailer. 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 has a far better r value per inch than other less effective insulations like cellulose fiberglass or even open cell foam.

Eco spray foam insulation. It has a lower r value per inch than closed cell foam and is vapor permeable. As a benchmark one inch of solid wood has an r value of 1. 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.

Closed cell spray foam insulation. Closed cell spray foams are between 2 and 4 lbs. 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.

Two inches of closed cell foam will provide r12 r14 of insulation.