Blown In Cellulose Vs Fiberglass Insulation Attic

Types of fiberglass and cellulose insulation.

Blown in cellulose vs fiberglass insulation attic.

Air moving through a vented attic deposits dirt and dust into fiberglass batts. Because it is denser than fiberglass cellulose is much more resistant to wind washing. Blown in cellulose homeowner benefits. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass.

Sometimes loose fill insulation is referred to as blown in insulation because an installer literally blows it into your home with a special machine. So what are the advantages and disadvantages of each of these. Dirty fiberglass batts have a significantly reduced r value. Compared to fiberglass cellulose is a superb air blocker.

When comparing blown in insulation both fiberglass and cellulose are nearly identical in price both costing around 0 70 to 0 80 per square foot for 6 inches of insulation. Higher r value per inch. Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic. This is called wind washing.

Blown cellulose is typically the preferred choice of insulation for attics. We offer our review of the three most popular types of attic insulation with a look at each one s pros and cons. Blown in spray foam batts and blankets. Batts or loose fill.

Cellulose has an r value of 3 5 3 7 per inch where fiberglass has around 2 1 2 7 r per inch. Your options for attic insulation range from radiant barriers to sheets of mineral wool but most homeowners stick with products made from cellulose or fiberglass. Blown in insulation sometimes referred to as loose fill insulation is insulation literally blown in with a blowing machine. Cellulose retains more of its r value through a wider range of temperatures compared to fiberglass.

Fiberglass batts however are less expensive costing on average 0 30 to 0 40 a square foot for 6 inches of insulation. There are two ways to get your insulation whether fiberglass or cellulose.