Is My Attic Insulation Is Cellulose Or Fiberglass

Cellulose provides better sound insulation than fiberglass i e homes are less noisy with it.

Is my attic insulation is cellulose or fiberglass.

First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. Cellulose is more difficult to cheat than fiberglass. Sources many fiberglass installers fluff the fiber with extra air so you don t get as much insulation as you re supposed to. Fiberglass batts however are less expensive costing on average 0 30to 0 40a square foot for 6 inches of insulation.

The trapped air molecules in the insulation are pulled up through the insulation into the colder attic air. This allows the insulation to get into the small pockets and crevices that fiberglass wouldn t be able to. Inspecting your attic insulation. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass.

Cellulose has 38 better air infiltration than fiberglass. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. The bottom line is that cellulose can burn but fiberglass will not support combustion. Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic.

This problem has been successfully solved by installing fiberglass batt insulation over the top of loose fill or blown insulation. Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live. In addition to its great r value cellulose also provides sounds insulation by providing mass and dampening. Loose fill fiberglass seems to dominate attic insulation in new construction homes and has an r value of approximately 2 5 per inch.

Or 7 inches of cellulose. When comparing blown in insulation both fiberglass and cellulose are nearly identical in price both costing around 0 70to 0 80per square foot for 6 inches of insulation. Like cellulose you need a big machine to blow it in. Fiberglass is a suspected carcinogen.

If you check with the cellulose insulation manufacturers association they ll assure you that cellulose is definitely your best choice for insulation. Cellulose forms a dense continuous mat of insulation in your attic. Cellulose cellulose insulation offers many advantages to your home such as its r value of r 2 6 per 100mm metric which is better than glass wool or rock wool. Thus creating a more energy efficient home.

Pros and cons of loose fill fiberglass attic insulation.