Cellulose Or Fiberglass In Attic

More consistent pricing from cellulose manufacturers than fiberglass.

Cellulose or fiberglass in attic.

It s blown into the attic and wall spaces under air pressure through hoses. Local source provides consistent deliveries. Because it is denser than fiberglass cellulose is much more resistant to wind washing. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass.

Once installed in the attic cellulose loose fill insulation looks like mounds of freshly fallen snow covering the attic floor. Cellulose resists blowing when installed fiberglass tends to blow around stick to the attic ceiling and drift. 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. Dirty fiberglass batts have a significantly reduced r value.

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. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. It does not pollute the air during manufacture or use as much energy to produce as fiberglass. 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.

Cellulose produces much less static than fiberglass. Cellulose vs fiberglass insulation. Thus creating a more energy efficient home. This is called wind washing.

You can get to the same place with either material. This allows the insulation to get into the small pockets and crevices that fiberglass wouldn t be able to. Cellulose insulation is considered a greener material than 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. Fiberglass fibers may become airborne which can be considered a pollutant. Air moving through a vented attic deposits dirt and dust into fiberglass batts. Compared to fiberglass cellulose is a superb air blocker.

With varying locations and building code requirements fiberglass and cellulose insulation can be beneficial for homeowners builders and remodelers. Oct 1 2018 cellulose can slow down air flow particularly in walls. The two insulations have successfully improved energy efficiency in homes over the years. Or 7 inches of cellulose.

Both cellulose and fiberglass are two most commonly used insulations.