Cellulose Fiber Attic
Walls are patched up and painted over.
Cellulose fiber attic. You can get to the same place with either material. And 3 a structure insulated with greenfiber s cellulose insulation using spray applied cellulose insulation wall. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. This problem has been successfully solved by installing fiberglass batt insulation over the top of loose fill or blown insulation.
The cellulose is blown into the attic or walls through long flexible tubes that run from the blower to an application nozzle. Both cellulose and fiberglass need to be installed at the correct depth and density to achieve the intended r value. The air trapped in the pockets of the insulation is part of what insulates your home. The cellulose is allowed to fill the cavities or blanket existing insulation.
Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. 2 as demonstrated by the large scale outdoor fire test program comparing. 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. 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 bottom line is that cellulose can burn but fiberglass will not support combustion. It is allowed to settle over time. 1 an uninsulated structure. Cellulose forms a dense continuous mat of insulation in your attic.
Cellulose can slow down air flow particularly in walls. Cellulose is more difficult to cheat than fiberglass. 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. Consisting of up to 85 recycled content greenfiber insulation is specially treated for flame resistance.
2 a structure insulated with r 13 fiberglass batts wall cavities and blown in loose fill insulation attic floor. Blown cellulose is typically the preferred choice of insulation for attics. Attic card greenfiber provides outstanding thermal performance fire resistance and sound control. 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.
Or 7 inches of cellulose. No pressure is placed on the cellulose. R value means resistance to heat flow the higher the r value the greater. The trapped air molecules in the insulation are pulled up through the insulation into the colder attic air.