Spray Foam Inches

The r value of spray foam insulation is approximately 6 per inch so those using spray foam as their insulator will need about 6 3 inches of thickness to reach r 38.

Spray foam inches.

The icc es report for insulstar spray foam from ncfi esr 1615 issued february 1 2005 lists a maximum thickness of only 2 inches. 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. Most homeowners spend 1 463 to 2 926 for professional spray foam installation with prices ranging from 627 to 8 000 depending on what needs insulating. The r value of fiberglass insulation is approximately 2 2 per inch so much thicker fiberglass insulation is required to achieve the same r value of 38.

Closed cell spray foams are between 2 and 4 lbs. The average cost to have spray foam professionally installed is about 2 400 for a 1 600 sq. Closed cell foam r6 r8. Just like for open cell foam r values are additive.

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. They sport an r value of 6 0 8 0 per inch of insulation about double their open cell foam counterparts. The rapid growth of sprayed foam insulation in building construction thanks in part to its immediate and long term. Choose foam it green spray foam insulation kits and don t settle for less than you deserve.

Spray foam insulation costs between 0 25 and 1 50 per board foot or 1 36 to 2 63 per square foot depending on the type. Resists moisture that can lead to mold or mildew and provides increased sound and thermal insulation. 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. Since closed cell foam has a higher r value per inch installers generally spray 2 in walls and 3 in rooflines to meet the energy code requirements of r 13 and r 19 respectively.

Two inches of closed cell foam will provide r12 r14 of insulation. Touch n foam 2 component spray foam expands and touch n foam 2 component spray foam expands and cures quickly to fill cavities gaps cracks expansion joints and other sources of air leakage in a building envelope. Spray foam kits are quicker and easier to use plus you get a seamless air barrier and high r value in just 1 inch. I m not going to dive into the energy code here but these numbers apply to many climate zones the latter being allowed under the ua tradeoffs rule.

Closed cell spray foam insulation. Insulstar spray foam insulation is a spray applied semi rigid cellular polyurethane foam plastic insulation having a maximum thickness of 2 inches and a nominal density of 2 0 pcf. 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. The r value is r 3 5 to r 3 6 per inch so filling a 2 4 cavity yields about an r 13.