Best Blown In Insulation For Attic

The best types of home attic insulation are open cell spray foam fiberglass and cellulose.

Best blown in insulation for attic.

Cellulose is the oldest insulation material used for not only the attic but other areas of the home as well. Insulation efficiently fills gaps. Contractor grade 30 lb. Blown in cellulose is an environmentally friendly material made from recycled newspaper so it s easier on your skin and lungs.

Loose fill insulation is great for installing in attics with very little headroom and multiple obstructions such as vents and cross beams. Boric acid borax or aluminum sulfate used in cellulose insulation provides resistance to mold pests and fire that can occur in the attic. A bag of cellulose insulation covers about 30 35 square feet of attic space if you are blowing in 10 inches. We include blown in attic insulation pros and cons but we can t recommend blown in fiberglass or cellulose as your best insulating choice.

Cellulose is very inexpensive when it comes to attic projects in comparison to other materials. Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Blown in insulation flows down around wall studs. Greenfiber cellulose insulation fills gaps and voids to create an energy saving thermal blanket that can lower heating and cooling costs by 25 and reduce sound power by 60.

When blown in cellulose gets into some of the tight corners and hard to reach areas in the attic cavities. The installer taking his best firefighter pose holds a large hose and blows the chunks into the attic. A bag of fiberglass insulation will cover approximately 65 square feet. For diy attic insulation you ve got two choices.

Bag of all borate insulation is ideal for professional contractors that offer blow in attic sidewall and floor applications. Blown a better choice is insulation that comes in smaller chunks. A large machine outside churns the chunks and uses air to blow them up through the hose. It can be effectively blown over existing insulation and.

You d need a thickness of. Loose fill or batt the common term for blanket insulation. Materials can be layered for added protection. Cellulose blown in ceiling insulation is a good choice for diyers.

Blown in fiberglass is considered flame resistant. When blown into attics and wall spaces loose fill fiberglass offers an average r 2 5 thermal value per inch the higher the number the greater the insulating effect. Blown in cellulose has a higher r rating and is less expensive than either blown insulation like fiberglass attic insulation or fiberglass batts.