Spray Foam Insulation R Values Per Inch

Closed cell spray foam is the most expensive residential insulation available.

Spray foam insulation r values 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. 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. Closed cell foam r values spray with an r value of 3 5 per inch per inch of thickness. 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.

Icynene md c 200 has an r value of 6 75 per inch. For example closed cell spray foam depending on brand can offer an r 6 or r 7 per inch. Icynene md r 200 has an r value of 5 2 per inch. 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.

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. All these have r values ranging from r 3 2 to r 3 8 per inch. Icynene classic max has an r value of 3 7 per inch. Open cell foam insulation values r3 r4.

Icynene classic ld c 50 has an r value of 3 7 per inch. Closed cell spray foams provide a higher r value per inch than less expensive insulation types like fiberglass cellulose or open cell foam all of which have r values of r 3 2 to r 3 8 per in. Comparing fiberglass to foam fiberglass is the less expensive choice for wall insulation and is the spray foam insulation rental industrial spray foam insulation jun 12 2017 focusing on spray foam insulation materials there is a difference. Closed cell spray foam insulation.