Cellulose Or Fiberglass In Attic

Dirty fiberglass batts have a significantly reduced r value.

Cellulose or fiberglass in attic. The two insulations have successfully improved energy efficiency in homes over the years. 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. More consistent pricing from cellulose manufacturers than fiberglass. Once installed in the attic cellulose loose fill insulation looks like mounds of freshly fallen snow covering the attic floor.

Thus creating a more energy efficient home. Cellulose produces much less static than fiberglass. Cellulose vs fiberglass insulation. Compared to fiberglass cellulose is a superb air blocker.

It is made from paper that has a minimum of 85 recycled content such as newspaper. Oct 1 2018 cellulose can slow down air flow particularly in walls. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. With varying locations and building code requirements fiberglass and cellulose insulation can be beneficial for homeowners builders and remodelers.

It does not pollute the air during manufacture or use as much energy to produce as fiberglass. Loose fill blown fiberglass insulation has another slight problem. Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic. This is called wind washing.

It s blown into the attic and wall spaces under air pressure through hoses. Fiberglass fibers may become airborne which can be considered a pollutant. Because it is denser than fiberglass cellulose is much more resistant to wind washing. Cellulose resists blowing when installed fiberglass tends to blow around stick to the attic ceiling and drift.

Cellulose insulation is considered a greener material than fiberglass. Cellulose is a loose fill product composed of small particles of pulverized paper and cloth treated with a fire retardant. Air moving through a vented attic deposits dirt and dust into fiberglass batts. 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.

Local source provides consistent deliveries. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. Both cellulose and fiberglass are two most commonly used insulations. Or 7 inches of cellulose.

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