Cellulose Vs Fiberglass Attic

It is made of shredded paper plus a fire retardant chemical known as a borate.

Cellulose vs fiberglass attic.

As the temperature difference between the living space and attic increases the r value of blown fiberglass diminishes. Because it is denser than fiberglass cellulose is much more resistant to wind washing. Loose fill blown fiberglass insulation has another slight problem. More consistent pricing from cellulose manufacturers than fiberglass.

Cellulose provides better sound insulation than fiberglass i e homes are less noisy with it. The paper is broken down into cellular fibers that provide insulation. Benefits of cellulose insulation. The manufacture of fiberglass is 80 more energy intensive than cellulose.

Both types of insulation can you know insulate. You can add batts in easy to access places such as the attic but not in between walls. Once it has settled fiberglass has an r value of 2 1 2 7 per inch while cellulose has an r value of approximately 3 0 per inch. Fiberglass batts don t offer that flexibility.

Because the loose particles blown in fill any and all odd shaped areas of the attic floor cellulose offers superior coverage without the need to custom fit pieces. This is called wind washing. Compared to fiberglass cellulose is a superb air blocker. This allows the insulation to get into the small pockets and crevices that fiberglass wouldn t be able to.

Thus creating a more energy efficient home. Better insulator sometimes cellulose and fiberglass batts typically have similar r values of about 3 2 to 3 8 per inch. Any insulation is better than no insulation. Dirty fiberglass batts have a significantly reduced r value.

Cellulose is easier to keep out of bird blocks and air conditioner condensate pans. If you ve got bare uninsulated areas on the floor of your attic getting some kind of insulation in there is a must. In most houses around atlanta the choice of insulation material comes down to fiberglass vs. Cellulose is the second most common.

Fiberglass is the most common. But which one should you pick. Both fibreglass and cellulose are the two most inexpensive insulation products that you could use. Cellulose resists blowing when installed fiberglass tends to blow around stick to the attic ceiling and drift.

Air moving through a vented attic deposits dirt and dust into fiberglass batts. Cellulose has an r factor of at least 3 8 per inch moderately higher than fiberglass batts. Sources many fiberglass installers fluff the fiber with extra air so you don t get as much insulation as you re supposed to. Fiberglass is a suspected carcinogen.

Once installed in the attic cellulose loose fill insulation looks like mounds of freshly fallen snow covering the attic floor. Cellulose insulation includes cellulose cells that have natural insulating power.