Spray Foam Insulation Vs Blown Insulation

Any spaces and gaps that aren t filled can equate to the size of a basketball with enough air leakage everyday to fill two air blimps.

Spray foam insulation vs blown insulation.

I d blow insulation on the attic floor after air sealing of course. In general spray foam insulation will cost more than blown in blanket wall insulation with loose fill attic insulation r 40 as a standard. Spray foam insulation s main ingredients are water blown and organic chemical compounds derived from petroleum. Icynene spray foam because of its specific type of material is able to create an effective air barrier wherever it is applied.

Open cell spray foam insulation can expand up to 100 times its original size to fill every nook and cranny in the cavity where it is applied. For the average 2 400 square foot home it will cost 3 000 to 8 400 to do the. It s generally 3 to 4 times what you ll pay for blown cellulose or fiberglass. Fiberglass insulation vs spray foam insulation comparison.

Spray foam insulation prices spray foam insulation is the new thing in insulation and is going to be the future of insulating homes. While blown in insulation is generally made from some kind of fibrous material such as cellulose fiberglass or mineral wool spray foam insulation like icynene is made from spray polyurethane foam. It costs 1 25 to 3 50 per square foot to install spray foam insulation into your walls ceiling and attic. The big disadvantage with spray foam is cost.

Blown in insulation vs spray foam there are various methods of insulating your house among which blown in and spray foam techniques are more common and known to be effective. Depending on the region and market spray foam insulation can sell for 1 30 to 3 50 per square foot. Fiberglass insulation is significantly cheaper than spray foam insulation but it is also less effective especially in extremely cold conditions. So the following is a list of their various key features along with strengths and drawbacks to help you better understand which method will benefit you.

Of course it costs more. It s hard to perfectly install fiberglass and cellulose. The attic roofline is typically insulated with 5 nominal fill foam resulting in an r value close to 20. In most home markets this type of insulation is considered an added home value that will pay.

Spray foam insulation is an air barrier material that creates a seal against air movement. Considering diy blown fiberglass insulation vs spray foam both require care to get the thickness right. Spray foam insulation vs fiberglass r value is about equal for open cell insulation and about double for closed cell insulation per one inch layer.