Better For Attic Insulation Fiberglass Or Cellulose

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

Better for attic insulation fiberglass or cellulose.

This keeps the air from moving within the insulation and from penetrations between the air conditioned space and the attic. Both cellulose and fiberglass insulation have their pros and cons but i feel that cellulose is the better bet overall. R values of fiberglass and cellulose insulation. Cellulose has 38 better air infiltration than fiberglass.

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. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. Cellulose wins last update.

Cellulose forms a dense continuous mat of insulation in your attic. A given sample of cellulose insulation will provide better thermal performance than an identically sized sample of fiberglass insulation. Blown cellulose is typically the preferred choice of insulation for attics. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass.

Cellulose is more difficult to cheat than fiberglass. What does matter is the type of fiberglass or cellulose and how well it was installed.