Closed Cell Spray Foam R Value Calculator

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 r value calculator. Just like for open cell foam r values are additive. Spray foam is available in two types. Coverage calculator estimating spray foam insulation coverage is easy with our calculator. Choose foam it green spray foam insulation kits and don t settle for less than you deserve.

Open cell spray foam which usually costs 0 44 to 0 65 per board foot and closed cell spray foam which averages 1 to 1 50 per board foot the average total cost to have spray foam professionally installed is about 2 413 or between 1 278 and 3 681 spray foam insulation works as alternative to traditional fiberglass insulation during construction or. Closed cell spray foam aka two pound foam is denser than open cell at about 2 pounds per cubic foot. 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. That means if you used foam it green closed cell which is r 7 per inch it s r value for a 3 5 deep wall cavity would be r 24 5.

Depending on how close your calculated requirements are to the actual yield of the recommended kit size or quantity you may need more material to. If you d like to start saving money and time today buy foam it green spray foam insulation now or call us at 800 516 0949. Closed cell s obvious advantages compensate for its slightly higher price tag of 15 to 30 for the same thickness. Spray foam kits are quicker and easier to use plus you get a seamless air barrier and high r value in just 1 inch.

As a benchmark one inch of solid wood has an r value of 1. If you d like to start saving money and time today buy foam it green spray foam insulation now or call us at 800 516 0949. Choose foam it green spray foam insulation kits and don t settle for less than you deserve. Along with knowing the r value of a particular insulation it is also important to calculate the r value of a total system.

Two inches of closed cell foam will provide r12 r14 of insulation. Its r value is roughly 6 5 per inch. For example closed cell spray foam depending on brand can offer an r 6 or r 7 per inch. Closed cell spray foams are between 2 and 4 lbs.

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. Spray foam kits are quicker and easier to use plus you get a seamless air barrier and high r value in just 1 inch.