Closed Cell Spray Foam Insulation R Value Chart

With foamed in place insulation it is relatively easy though not inexpensive to fill wall and ceiling cavities completely.

Closed cell spray foam insulation r value chart.

Products with a higher r value provide greater insulation. Two inches of closed cell foam will provide r12 r14 of 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. The closed cell spray foam stops air infiltration and provides about an r 5 per inch.

The common denominator among varieties of insulation is the r value. R value is an important insulation term about measurement. Closed cell spray foams are between 2 and 4 lbs. 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.

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. The r value is r 3 5 to r 3 6 per inch so filling a 2 4 cavity yields about an r 13. 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.

The r value for closed cell is typically around 6 7 at 1 thick and varies by manufacturer. Closed cell spray foam insulation. 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.

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. Made with plant based products such as soy eco spray foam is more eco friendly. Closed cell open cell spray foam r values. Insulate rim joists and other large areas with this product meant for big jobs.

It measures the effectiveness at stopping energy loss by way of conduction one of the 3 forms of energy transfer. Closed cell foam r6 r8. In comparison an inch of blown fiberglass insulation has an r value of 3 1 3 4 and. Most spray polyurethane foam is called two component foam.

As a benchmark one inch of solid wood has an r value of 1. Eco spray foam insulation. It has a lower r value per inch than closed cell foam and is vapor permeable. Use the following chart to estimate an ideal r value for your insulation project.