Spray Foam Insulation Values Per Inch

It has a lower r value per inch than closed cell foam and is vapor permeable.

Spray foam insulation values per inch.

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. Welcome to g m c spray foam insulation 509 720 9954. Note that the material the insulation is made from will change the r value as well. Blown in or loose fill insulation.

Price varies on r value required and amount of sq footage being sprayed. R values are additive so you can multiple the number of inches of insulation thickness times the r value to arrive at a total insulation value. Eco spray foam insulation. Although spray foam insulation has been in use since the 1940s primarily for aircraft for the past 30 years continual product innovation has seen the increased adoption of spray foam insulation in residential and commercial construction.

R value is a critical part when comparing spray foam to other types of insulation. Insulation blankets batts and rolls spray foam insulation. The r value is r 3 5 to r 3 6 per inch so filling a 2 4 cavity yields about an r 13. More inches applied will give you a higher r value.

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. Open cell foam insulation values r3 r4. Here are the installation methods from lowest to highest average r value per inch.

Foam board insulation. 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. 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. You will have an option of closed cell r value of 6 7 per inch or open cell r value 3 7 per inch.

For example closed cell spray foam depending on brand can offer an r 6 or r 7 per inch. Open cell has an r value of 3 7 and closed cell has an r value of 6 5 based per inch of installed spray foam. Open cell spray foams are between 5 and 1 lbs per cubic foot and have an r value of 3 0 4 0 per inch of insulation. Why spray foam insulation is so effective in meeting code requirements is that it has a higher r value per inch of product used than batts.

Spray foam is available in two different types. Open cell spray foam which is usually 1 00 to 1 20 per square foot and closed cell spray foam which is about 1 25 to 1 50 per square foot 1 by 12 x 12 area of coverage. Spray foam insulation r value. Products with a higher r value provide greater insulation.

Closed cell spray foam insulation. The insulation is blown into the wall or attic one layer 1 at a time. The average cost to have spray foam professionally installed is about 2 400 for a 1 600 sq. Made with plant based products such as soy eco spray foam is more eco friendly.