Fiberglass Insulation Vs Cellulose Insulation For Attic

Cellulose insulates better than fiberglass especially in very cold weather.

Fiberglass insulation vs cellulose insulation for attic.

The attic is one of the most essential areas of the home to ensure proper insulation in. Dirty fiberglass batts have a significantly reduced r value. Or 7 inches of cellulose. Fiberglass insulation and cellulose insulation offer similar r values.

Cellulose is green cellulose is made of 80 post consumer recycled newsprint. Cellulose is more difficult to cheat than fiberglass. Cellulose wins last update. 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. Don t let money fly out of your roof. Cellulose has 38 better air infiltration than fiberglass. Air moving through a vented attic deposits dirt and dust into fiberglass batts.

When using cellulose blown in dry insulation it requires a machine to achieve its purpose and a training session from wherever you rent the blower from. Fiberglass insulation is the easiest insulation product on the market to install and if installed correctly the most effective product on the market for home attic insulation. Attic insulation contrast compare. 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.

Fiberglass insulation blown in attic r2 2 r4 3. Attic insulation keeps the desirable temperature in and the undesirable temperature out. Fiberglass batt or roll insulation r3 2. This is called wind washing.

Fiberglass batts however are less expensive costing on average 0 30 to 0 40 a square foot for 6 inches of insulation. When comparing blown in insulation both fiberglass and cellulose are nearly identical in price both costing around 0 70 to 0 80 per square foot for 6 inches of insulation. Posted september 19 2019 by lewis insulation filed under attic insulation. This allows the insulation to get into the small pockets and crevices that fiberglass wouldn t be able to.

Cellulose forms a dense continuous mat of insulation in your attic. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. You can get to the same place with either material. This keeps the air from moving within the insulation and from penetrations between the air conditioned space and the attic.

Both cellulose and fiberglass insulation have their pros and cons but i feel that cellulose is the better bet overall. Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic.