As an asbestos alternative cellulose insulation is made from many different materials including cardboard hemp straw newspaper and many other different materials.
Attic insulation vs cellulose.
Cellulose can help dry out other materials in contact with it and does not support mold growth.
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.
Posted september 19 2019 by lewis insulation filed under attic insulation.
When a paper based cellulose mix is utilized by builders it is treated with something called boric acid to give it fire resistance properties.
Cellulose is more difficult to cheat than fiberglass.
You can get to the same place with either material.
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.
The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass.
Cellulose can slow down air flow particularly in walls.
Cellulose forms a dense continuous mat of insulation in your attic.
Cellulose wins last update.
Wet insulation of any type is bad.
Cellulose has 38 better air infiltration than fiberglass.
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.
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.
Don t let money fly out of your roof.
This keeps the air from moving within the insulation and from penetrations between the air conditioned space and the attic.
Attic insulation contrast compare.
Or 7 inches of cellulose.
The air trapped in the pockets of the insulation is part of what insulates your home.
This prevents liquid from accumulating in any one area.
Both cellulose and fiberglass insulation have their pros and cons but i feel that cellulose is the better bet overall.