Dirty fiberglass batts have a significantly reduced r value.
Cellulose vs fiberglass attic.
You can add batts in easy to access places such as the attic but not in between walls.
Cellulose is the second most common.
Fiberglass is the most common.
Loose fill blown fiberglass insulation has another slight problem.
It is made of shredded paper plus a fire retardant chemical known as a borate.
Any insulation is better than no insulation.
Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic.
Because it is denser than fiberglass cellulose is much more resistant to wind washing.
Cellulose provides better sound insulation than fiberglass i e homes are less noisy with it.
Thus creating a more energy efficient home.
Both fibreglass and cellulose are the two most inexpensive insulation products that you could use.
The paper is broken down into cellular fibers that provide insulation.
Once installed in the attic cellulose loose fill insulation looks like mounds of freshly fallen snow covering the attic floor.
Cellulose has an r factor of at least 3 8 per inch moderately higher than fiberglass batts.
This is called wind washing.
This allows the insulation to get into the small pockets and crevices that fiberglass wouldn t be able to.
Sources many fiberglass installers fluff the fiber with extra air so you don t get as much insulation as you re supposed to.
Better insulator sometimes cellulose and fiberglass batts typically have similar r values of about 3 2 to 3 8 per inch.
Air moving through a vented attic deposits dirt and dust into fiberglass batts.
Cellulose insulation includes cellulose cells that have natural insulating power.
Cellulose is easier to keep out of bird blocks and air conditioner condensate pans.
Fiberglass is a suspected carcinogen.
Fiberglass insulation contains billions of tiny glass fibers which contain trapped bubbles of air.
More consistent pricing from cellulose manufacturers than fiberglass.
As the temperature difference between the living space and attic increases the r value of blown fiberglass diminishes.
Cellulose resists blowing when installed fiberglass tends to blow around stick to the attic ceiling and drift.
In most houses around atlanta the choice of insulation material comes down to fiberglass vs.
Fibreglass is perhaps the most common product available in the market for insulation outpacing its close competitor cellulose by 50 1.
Compared to fiberglass cellulose is a superb air blocker.
Fiberglass batts don t offer that flexibility.
Once it has settled fiberglass has an r value of 2 1 2 7 per inch while cellulose has an r value of approximately 3 0 per inch.
If you ve got bare uninsulated areas on the floor of your attic getting some kind of insulation in there is a must.
Both types of insulation can you know insulate.
Benefits of cellulose insulation.
