Fiberglass Insulation Vs Cellulose Insulation For Attic

Cellulose is more difficult to cheat than fiberglass.

Fiberglass insulation vs cellulose insulation for attic.

Both cellulose and fiberglass insulation provide about the same level of insulating power or r value per inch with slightly different results based on the installation procedure. Posted september 19 2019 by lewis insulation filed under attic insulation. So what are the advantages and disadvantages of each of these. This keeps the air from moving within the insulation and from penetrations between the air conditioned space and the attic.

Fiberglass batt or roll insulation r3 2. Attic insulation keeps the desirable temperature in and the undesirable temperature out. 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. Cellulose wins last update.

Fiberglass insulation and cellulose insulation offer similar r values. Thus creating a more energy efficient home. 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. This is called wind washing.

The attic is one of the most essential areas of the home to ensure proper insulation in. Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic. 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. This allows the insulation to get into the small pockets and crevices that fiberglass wouldn t be able to.

Cellulose has 38 better air infiltration than fiberglass. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. Both cellulose and fiberglass insulation have their pros and cons but i feel that cellulose is the better bet overall. Fiberglass insulation blown in attic r2 2 r4 3.

Fiberglass batts however are less expensive costing on average 0 30 to 0 40 a square foot for 6 inches of insulation. Or 7 inches of cellulose. Attic insulation contrast compare. You can get to the same place with either material.

Cellulose is green cellulose is made of 80 post consumer recycled newsprint. 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. 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.

Cellulose insulates better than fiberglass especially in very cold weather. Dirty fiberglass batts have a significantly reduced r value.