Cellulose Or Fiberglass Attic Insulation

The attic is one of the most essential areas of the home to ensure proper insulation in.

Cellulose or fiberglass attic insulation.

Cellulose insulates better than fiberglass especially in very cold weather. This allows the insulation to get into the small pockets and crevices that fiberglass wouldn t be able to. Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic. Cellulose forms a dense continuous mat of insulation in your attic.

Loose fill fiberglass seems to dominate attic insulation in new construction homes and has an r value of approximately 2 5 per inch. Posted september 19 2019 by lewis insulation filed under attic insulation. Pros and cons of loose fill fiberglass attic insulation. Assuming your current attic insulation is made from fiberglass and has a value of r 13 you d have to add roughly 10 inches of additional fiberglass to hit r 38.

Attic insulation keeps the desirable temperature in and the undesirable temperature out. 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. Attic insulation contrast compare. So what are the advantages and disadvantages of each of these.

Recycled glass or sand that s melted and spun into fibers. Cellulose is more difficult to cheat than fiberglass. Both cellulose and fiberglass insulation have their pros and cons but i feel that cellulose is the better bet overall. If you check with the cellulose insulation manufacturers association they ll assure you that cellulose is definitely your best choice for insulation.

Or 7 inches of cellulose. Thus creating a more energy efficient home. Cellulose wins last update. Don t let money fly out of your roof.

Cellulose has 38 better air infiltration than fiberglass. Lighter in weight than cellulose or mineral wool but it settles more than those materials so you ve got to put in a thicker layer to get the protection you need. When walls are already finished injecting loose fill cellulose insulation is one of the few ways of adding. When used in an attic space however both types of insulation are ineffective at air flow across the attic floor such as a strong gust of wind.

Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. You can get to the same place with either material. Loose fill cellulose is relatively inexpensive yet still has an r value of about 3 5 per inch of thickness compared to fiberglass r value between r3 to r4 per inch.