Fiberglass Vs Cellulose Insulation For Attics

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.

Fiberglass vs cellulose insulation for attics.

Don t let money fly out of your roof. Both cellulose and fiberglass insulation have their pros and cons but i feel that cellulose is the better bet overall. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. R values for blown in are determined by the material installed settled depth and density.

Fiberglass batt or roll insulation r3 2. 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. 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. Blown in insulation is used for new constuction and retrofitting existing attics with additional insulation.

Posted september 19 2019 by lewis insulation filed under attic insulation. So what are the advantages and disadvantages of each of these. Installer benefits for cellulose and fiberglass. 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 attic is one of the most essential areas of the home to ensure proper insulation in. Attic insulation contrast compare. Attic insulation keeps the desirable temperature in and the undesirable temperature out. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass.

Cellulose wins last update. Cellulose insulates better than fiberglass especially in very cold weather. Loose fill fiberglass seems to dominate attic insulation in new construction homes and has an r value of approximately 2 5 per inch. 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.

Blown cellulose is typically the preferred choice of insulation for attics. See below for homeowner vs. Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic. You can get to the same place with either material.

Fiberglass insulation and cellulose insulation offer similar r values. Fiberglass insulation blown in attic r2 2 r4 3. When using cellulose blown in dry insulation it requires a machine to achieve its purpose and a training session from wherever you rent the blower from.