Cellulose Fiber Attic

Blown cellulose is typically the preferred choice of insulation for attics.

Cellulose fiber attic.

Both cellulose and fiberglass need to be installed at the correct depth and density to achieve the intended r value. It is allowed to settle over time. 1 an uninsulated structure. You can get to the same place with either material.

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. Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic. Cellulose is more difficult to cheat than fiberglass. So what are the advantages and disadvantages of each of these.

The cellulose is allowed to fill the cavities or blanket existing insulation. Or 7 inches of cellulose. The air trapped in the pockets of the insulation is part of what insulates your home. Cellulose forms a dense continuous mat of insulation in your 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. The trapped air molecules in the insulation are pulled up through the insulation into the colder attic air. Consisting of up to 85 recycled content greenfiber insulation is specially treated for flame resistance. And 3 a structure insulated with greenfiber s cellulose insulation using spray applied cellulose insulation wall.

2 as demonstrated by the large scale outdoor fire test program comparing. This problem has been successfully solved by installing fiberglass batt insulation over the top of loose fill or blown insulation. This keeps the air from moving within the insulation and from penetrations between the air conditioned space and the attic. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass.

The bottom line is that cellulose can burn but fiberglass will not support combustion. 2 a structure insulated with r 13 fiberglass batts wall cavities and blown in loose fill insulation attic floor. R value means resistance to heat flow the higher the r value the greater. Attic card greenfiber provides outstanding thermal performance fire resistance and sound control.

Cellulose can slow down air flow particularly in walls. 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. No pressure is placed on the cellulose. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass.