Cellulose Fiber Attic

Or 7 inches of cellulose.

Cellulose fiber attic.

Walls are patched up and painted over. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. The air trapped in the pockets of the insulation is part of what insulates your home. Cellulose is more difficult to cheat than fiberglass.

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. Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic. It is allowed to settle over time. You can get to the same place with either material.

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. The cellulose is allowed to fill the cavities or blanket existing insulation. Cellulose forms a dense continuous mat of insulation in your attic. The trapped air molecules in the insulation are pulled up through the insulation into the colder attic air.

The cellulose is blown into the attic or walls through long flexible tubes that run from the blower to an application nozzle. No pressure is placed on the cellulose. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. Blown cellulose is typically the preferred choice of insulation for attics.

Consisting of up to 85 recycled content greenfiber insulation is specially treated for flame resistance. R value means resistance to heat flow the higher the r value the greater. This keeps the air from moving within the insulation and from penetrations between the air conditioned space and the attic. Attic card greenfiber provides outstanding thermal performance fire resistance and sound control.

Cellulose can slow down air flow particularly in walls. So what are the advantages and disadvantages of each of these. 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. And 3 a structure insulated with greenfiber s cellulose insulation using spray applied cellulose insulation wall.

2 a structure insulated with r 13 fiberglass batts wall cavities and blown in loose fill insulation attic floor. 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. 1 an uninsulated structure. The bottom line is that cellulose can burn but fiberglass will not support combustion.