Attic Insulation Vs Cellulose

Attic insulation keeps the desirable temperature in and the undesirable temperature out.

Attic insulation vs cellulose.

Or 7 inches of cellulose. Cellulose can slow down air flow particularly in walls. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. Cellulose wins last update.

Cellulose insulates better than fiberglass especially in very cold weather. Posted september 19 2019 by lewis insulation filed under attic insulation. This keeps the air from moving within the insulation and from penetrations between the air conditioned space and the attic. Attic insulation contrast compare.

Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic. Cellulose has 38 better air infiltration than fiberglass. You can get to the same place with either material. Don t let money fly out of your roof.

The air trapped in the pockets of the insulation is part of what insulates your home. But cellulose is hygroscopic meaning any moisture it encounters is dispersed throughout the material. Blown cellulose is typically the preferred choice of insulation for attics. This prevents liquid from accumulating in any one area.

Cellulose can help dry out other materials in contact with it and does not support mold growth. Wet insulation of any type is bad. Cellulose forms a dense continuous mat of insulation in your attic. When a paper based cellulose mix is utilized by builders it is treated with something called boric acid to give it fire resistance properties.

Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. 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. Both cellulose and fiberglass insulation have their pros and cons but i feel that cellulose is the better bet overall. Cellulose is more difficult to cheat than fiberglass.