Fiberglass Vs Cellulose Insulation For Attics

R values for blown in are determined by the material installed settled depth and density.

Fiberglass vs cellulose insulation for attics.

So what are the advantages and disadvantages of each of these. 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. See below for homeowner vs. Posted september 19 2019 by lewis insulation filed under attic insulation.

Blown cellulose is typically the preferred choice of insulation for attics. Fiberglass batt or roll insulation r3 2. Both cellulose and fiberglass insulation have their pros and cons but i feel that cellulose is the better bet overall. Fiberglass insulation blown in attic r2 2 r4 3.

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. Loose fill fiberglass seems to dominate attic insulation in new construction homes and has an r value of approximately 2 5 per inch. Or 7 inches of cellulose. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass.

Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic. 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 insulation and cellulose insulation offer similar r values. Blown in insulation is used for new constuction and retrofitting existing attics with additional insulation.

Installer benefits for cellulose and fiberglass. Cellulose insulates better than fiberglass especially in very cold weather. Don t let money fly out of your roof. 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.

If you check with the cellulose insulation manufacturers association they ll assure you that cellulose is definitely your best choice for insulation. Attic insulation contrast compare. 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. 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.

Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. The attic is one of the most essential areas of the home to ensure proper insulation in. Cellulose wins last update.