Cellulose Attic Insulation Vs Fiberglass

Picture the fluffy pink stuff.

Cellulose attic insulation vs fiberglass.

Or 7 inches of cellulose. Although that represents just one brand. Good insulation lowers energy bills by trapping heat or cold air inside a building. 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.

Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. You can get to the same place with either material. Most people are more familiar with fiberglass than cellulose despite their similarities. So what are the advantages and disadvantages of each of these.

Fiberglass insulation also comes in colors like white and yellow. 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. 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.

The bottom line is that cellulose can burn but fiberglass will not support combustion. Cellulose insulation vs fiberglass insulation comparison. Blown in insulation is a versatile product that can be used throughout a home. Both cellulose and fiberglass insulation have their pros and cons but i feel that cellulose is the better bet overall.

While fiberglass insulation is easier to install and more common used about 85 of the time cellulose insulation is often considered more energy efficient. Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic. This allows the insulation to get into the small pockets and crevices that fiberglass wouldn t be able to. Fiberglass insulation vs cellulose insulation.

It is able to improve energy efficiency home comfort and lower utility costs. A fight for r value. This problem has been successfully solved by installing fiberglass batt insulation over the top of loose fill or blown insulation. 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.

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. Cellulose insulates better than fiberglass especially in very cold weather. Cellulose wins last update.