Blown In Cellulose Vs Fiberglass Insulation Attic

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

Blown in cellulose vs fiberglass insulation attic.

Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic. The material can be either fiberglass or cellulose and consists of fiber foam or other materials in small particles and can even feel like down. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. There are two ways to get your insulation whether fiberglass or cellulose.

Blown in cellulose homeowner benefits. We offer our review of the three most popular types of attic insulation with a look at each one s pros and cons. Types of fiberglass and cellulose insulation. Batts or loose fill.

Sometimes loose fill insulation is referred to as blown in insulation because an installer literally blows it into your home with a special machine. Because it is denser than fiberglass cellulose is much more resistant to wind washing. Dirty fiberglass batts have a significantly reduced r value. This is called wind washing.

Blown in insulation sometimes referred to as loose fill insulation is insulation literally blown in with a blowing machine. Fiberglass batts however are less expensive costing on average 0 30 to 0 40 a square foot for 6 inches of insulation. Very common very problematic. Higher r value per inch.

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. Cellulose retains more of its r value through a wider range of temperatures compared to fiberglass. Blown in spray foam batts and blankets. 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. Air moving through a vented attic deposits dirt and dust into fiberglass batts.