Spray Foam Insulation Vs Blown Insulation

Depending on the region and market spray foam insulation can sell for 1 30 to 3 50 per square foot.

Spray foam insulation vs blown insulation.

Spray foam insulation is an air barrier material that creates a seal against air movement. Spray foam insulation prices spray foam insulation is the new thing in insulation and is going to be the future of insulating homes. 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. Icynene spray foam because of its specific type of material is able to create an effective air barrier wherever it is applied.

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. Fiberglass insulation is significantly cheaper than spray foam insulation but it is also less effective especially in extremely cold conditions. Considering diy blown fiberglass insulation vs spray foam both require care to get the thickness right. 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.

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. The big disadvantage with spray foam is cost. 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. In most home markets this type of insulation is considered an added home value that will pay.

It s generally 3 to 4 times what you ll pay for blown cellulose or fiberglass. Spray foam insulation s main ingredients are water blown and organic chemical compounds derived from petroleum. The attic roofline is typically insulated with 5 nominal fill foam resulting in an r value close to 20. 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 expands up to 100 times its original size to fill every corner of your home s envelope for thermal insulation and air sealing. If you don t have hvac and ducts in the attic spray foam on the roofline isn t really necessary. I d blow insulation on the attic floor after air sealing of course. Of course it costs more.

Fiberglass insulation vs spray foam insulation comparison. Used in roughly 85 of american homes fiberglass insulation is the most common form of home insulation. It s hard to perfectly install fiberglass and cellulose.