Per square inch of insulation cellulose has a higher r value than fiberglass.
Cellulose insulation in attic vs fiberglass.
Cellulose insulation is considered a greener material than fiberglass.
Attic blown cellulose is typically the preferred choice of insulation for attics.
A given sample of cellulose insulation will provide better thermal performance than an identically sized sample of fiberglass insulation.
Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic.
Both fibreglass and cellulose are the two most inexpensive insulation products that you could use.
It is made from paper that has a minimum of 85 recycled content such as newspaper.