Cellulose Or Fiberglass In Attic

This allows the insulation to get into the small pockets and crevices that fiberglass wouldn t be able to.

Cellulose or fiberglass in attic.

Loose fill blown fiberglass insulation has another slight problem. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. The two insulations have successfully improved energy efficiency in homes over the years. More consistent pricing from cellulose manufacturers than fiberglass.

Assuming your current attic insulation is made from fiberglass and has a value of r 13 you d have to add roughly 10 inches of additional fiberglass to hit r 38. Or 7 inches of cellulose. It does not pollute the air during manufacture or use as much energy to produce as fiberglass. With varying locations and building code requirements fiberglass and cellulose insulation can be beneficial for homeowners builders and remodelers.

Cellulose produces much less static than fiberglass. Oct 1 2018 cellulose can slow down air flow particularly in walls. It s blown into the attic and wall spaces under air pressure through hoses. When used in an attic space however both types of insulation are ineffective at air flow fiberglass batts can be found jammed into floor attic maine cellulose is a great product because it goes everywhere you want the insulation to be.

You can get to the same place with either material. Thus creating a more energy efficient home. Cellulose resists blowing when installed fiberglass tends to blow around stick to the attic ceiling and drift. This is called wind washing.

Cellulose is a loose fill product composed of small particles of pulverized paper and cloth treated with a fire retardant. Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic. Cellulose insulation is considered a greener material than fiberglass. As the temperature difference between the living space and attic increases the r value of blown fiberglass diminishes.

Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. 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. Once installed in the attic cellulose loose fill insulation looks like mounds of freshly fallen snow covering the attic floor. Cellulose vs fiberglass insulation.

Air moving through a vented attic deposits dirt and dust into fiberglass batts. Because it is denser than fiberglass cellulose is much more resistant to wind washing. Compared to fiberglass cellulose is a superb air blocker. Fiberglass fibers may become airborne which can be considered a pollutant.

It is made from paper that has a minimum of 85 recycled content such as newspaper.