Cellulose Or Fiberglass Attic Insulation

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.

Cellulose or fiberglass attic insulation.

So what are the advantages and disadvantages of each of these. The attic is one of the most essential areas of the home to ensure proper insulation in. You can get to the same place with either material. Posted september 19 2019 by lewis insulation filed under attic insulation.

Pros and cons of loose fill fiberglass attic insulation. Attic insulation keeps the desirable temperature in and the undesirable temperature out. If you check with the cellulose insulation manufacturers association they ll assure you that cellulose is definitely your best choice for insulation. Loose fill cellulose insulation can settle around and conform to most of the obstructions found in walls and attics.

Recycled glass or sand that s melted and spun into fibers. Loose fill fiberglass seems to dominate attic insulation in new construction homes and has an r value of approximately 2 5 per inch. Attic insulation contrast compare. Cellulose has 38 better air infiltration than fiberglass.

This allows the insulation to get into the small pockets and crevices that fiberglass wouldn t be able to. 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. Don t let money fly out of your roof. 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.

The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. Thus creating a more energy efficient home. Cellulose wins last update. Cellulose is more difficult to cheat than fiberglass.

Cellulose forms a dense continuous mat of insulation in your attic. Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. Both cellulose and fiberglass insulation have their pros and cons but i feel that cellulose is the better bet overall.

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. Cellulose insulates better than fiberglass especially in very cold weather. Or 7 inches of cellulose.