Difference Between Attic Insulation Cellulose And Fiberglass

Some suggested would be appreciated.

Difference between attic insulation cellulose and fiberglass. A given sample of cellulose insulation will provide better thermal performance than an identically sized sample of fiberglass insulation. Because it is denser than fiberglass cellulose is much more resistant to wind washing. If you choose to install cellulose yourself you can buy the insulation in bags from your local home. Cellulose recycled ground up paper with boric acid added for insect control and fire resistance offers a better attic insulation option than batts.

I won t even discuss r value because fiberglass batts don t belong in an attic. Cellulose insulation is considered green as it is made from recycled newspaper and requires less energy to manufacture than fiberglass insulation. Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic. Dirty fiberglass batts have a significantly reduced r value.

Per square inch of insulation cellulose has a higher r value than fiberglass. 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. It is non toxic and will not rot decay or contribute to mold growth. I live in phoenix arizona and am going to add several inches of insulation to my attic and would like to know which insulation is best to use.

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. So what are the advantages and disadvantages of each of these. Blown cellulose is typically the preferred choice of insulation for attics. This is called wind washing.

I had been told fiberglass was best by on installer but after reading some of the posts here it appears the cellulose is the better. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. 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. You can add batts in easy to access places such as the attic but not in between walls.

Fiberglass batts don t offer that flexibility. Pros and cons of cellulose attic insulation. Compared to fiberglass cellulose is a superb air blocker. Air moving through a vented attic deposits dirt and dust into fiberglass batts.

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.