Fiberglass Vs Cellulose Insulation For Attics

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Fiberglass vs cellulose insulation for attics.

The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. Loose fill fiberglass seems to dominate attic insulation in new construction homes and has an r value of approximately 2 5 per inch. The attic is one of the most essential areas of the home to ensure proper insulation in. Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic.

Cellulose insulates better than fiberglass especially in very cold weather. Fiberglass insulation and cellulose insulation offer similar r values. Both cellulose and fiberglass insulation have their pros and cons but i feel that cellulose is the better bet overall. Or 7 inches of cellulose.

See below for homeowner vs. Attic insulation keeps the desirable temperature in and the undesirable temperature out. Fiberglass insulation blown in attic r2 2 r4 3. Blown in insulation is used for new constuction and retrofitting existing attics with additional insulation.

So what are the advantages and disadvantages of each of these. Fiberglass batt or roll insulation r3 2. If you check with the cellulose insulation manufacturers association they ll assure you that cellulose is definitely your best choice for insulation. 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.

Cellulose wins last update. Blown cellulose is typically the preferred choice of insulation for attics. Pros and cons of loose fill fiberglass attic insulation. R values for blown in are determined by the material installed settled depth and density.

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. You can get to the same place with either material. Fiberglass insulation is the easiest insulation product on the market to install and if installed correctly the most effective product on the market for home attic insulation. Installer benefits for cellulose and fiberglass.

Both cellulose and fiberglass insulation provide about the same level of insulating power or r value per inch with slightly different results based on the installation procedure. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. Posted september 19 2019 by lewis insulation filed under attic insulation.