Cellulose Attic Insulation Vs Fiberglass

So what are the advantages and disadvantages of each of these.

Cellulose attic insulation vs fiberglass.

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. Although that represents just one brand. It is able to improve energy efficiency home comfort and lower utility costs. Most people are more familiar with fiberglass than cellulose despite their similarities.

Good insulation lowers energy bills by trapping heat or cold air inside a building. Fiberglass insulation also comes in colors like white and yellow. 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. You can get to the same place with either material.

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. Picture the fluffy pink stuff. The trapped air molecules in the insulation are pulled up through the insulation into the colder attic air.

Both cellulose and fiberglass insulation have their pros and cons but i feel that cellulose is the better bet overall. Or 7 inches of cellulose. Fiberglass is the most popular type of insulation partially because it has been around so long. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass.

Cellulose wins last update. 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. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. While fiberglass insulation is easier to install and more common used about 85 of the time cellulose insulation is often considered more energy efficient.

If fiberglass batts become compressed losing some of their air pockets then this insulation may be more affected by air flow than cellulose which performs well regardless of density. This allows the insulation to get into the small pockets and crevices that fiberglass wouldn t be able to. Cellulose insulation vs fiberglass insulation comparison. A fight for r value.

Blown in insulation is a versatile product that can be used throughout a home. Thus creating a more energy efficient home. This problem has been successfully solved by installing fiberglass batt insulation over the top of loose fill or blown insulation.