Fiberglass Vs Cellulose Insulation For Attics

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Fiberglass vs cellulose insulation for attics.

Cellulose insulates better than fiberglass especially in very cold weather. 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. Posted september 19 2019 by lewis insulation filed under 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.

Blown in insulation is used for new constuction and retrofitting existing attics with additional insulation. R values for blown in are determined by the material installed settled depth and density. Blown cellulose is typically the preferred choice of insulation for attics. Installer benefits for cellulose and fiberglass.

The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. Cellulose wins last update. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. Attic insulation keeps the desirable temperature in and the undesirable temperature out.

You can get to the same place with either material. Both cellulose and fiberglass insulation have their pros and cons but i feel that cellulose is the better bet overall. See below for homeowner vs. So what are the advantages and disadvantages of each of these.

Fiberglass batt or roll insulation r3 2. Attic insulation contrast compare. Fiberglass insulation and cellulose insulation offer similar r values. Fiberglass insulation blown in attic r2 2 r4 3.

If you check with the cellulose insulation manufacturers association they ll assure you that cellulose is definitely your best choice for insulation. 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. Pros and cons of loose fill fiberglass attic insulation. Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic.

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. Or 7 inches of cellulose. 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.