Attic Insulation Vs Cellulose
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.
Attic insulation vs cellulose. Cellulose can help dry out other materials in contact with it and does not support mold growth. This prevents liquid from accumulating in any one area. Cellulose wins last update. Or 7 inches of cellulose.
When a paper based cellulose mix is utilized by builders it is treated with something called boric acid to give it fire resistance properties. Posted september 19 2019 by lewis insulation filed under attic insulation. Cellulose can slow down air flow particularly in walls. Cellulose forms a dense continuous mat of insulation in your attic.
But cellulose is hygroscopic meaning any moisture it encounters is dispersed throughout the material. The attic is one of the most essential areas of the home to ensure proper insulation in. When used in an attic space however both types of insulation are ineffective at air flow across the attic floor such as a strong gust of wind. Cellulose is more difficult to cheat than fiberglass.
As an asbestos alternative cellulose insulation is made from many different materials including cardboard hemp straw newspaper and many other different materials. Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic. Don t let money fly out of your roof. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass.
Wet insulation of any type is bad. You can get to the same place with either material. Cellulose insulates better than fiberglass especially in very cold weather. Cellulose has 38 better air infiltration than fiberglass.
Both cellulose and fiberglass insulation have their pros and cons but i feel that cellulose is the better bet overall. Attic insulation contrast compare. The air trapped in the pockets of the insulation is part of what insulates your home. Blown cellulose is typically the preferred choice of insulation for attics.