Cellulose Attic Insulation Vs Fiberglass

Good insulation lowers energy bills by trapping heat or cold air inside a building.

Cellulose attic insulation vs fiberglass.

Cellulose insulates better than fiberglass especially in very cold weather. Thus creating a more energy efficient home. Blown in insulation is a versatile product that can be used throughout a home. 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.

Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. 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. Fiberglass insulation vs cellulose insulation. This allows the insulation to get into the small pockets and crevices that fiberglass wouldn t be able to.

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. This problem has been successfully solved by installing fiberglass batt insulation over the top of loose fill or blown insulation. Most people are more familiar with fiberglass than cellulose despite their similarities.

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. 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. A fight for r value.

Cellulose wins last update. Fiberglass is the most popular type of insulation partially because it has been around so long. It is able to improve energy efficiency home comfort and lower utility costs. Picture the fluffy pink stuff.

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

While fiberglass insulation is easier to install and more common used about 85 of the time cellulose insulation is often considered more energy efficient. Although that represents just one brand. Or 7 inches of cellulose.