Fiberglass Insulation Vs Cellulose Insulation For Attic

Posted september 19 2019 by lewis insulation filed under attic insulation.

Fiberglass insulation vs cellulose insulation for attic.

The attic is one of the most essential areas of the home to ensure proper insulation in. Don t let money fly out of your roof. Fiberglass insulation and cellulose insulation offer similar r values. Cellulose insulates better than fiberglass especially in very cold weather.

This keeps the air from moving within the insulation and from penetrations between the air conditioned space and the attic. 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. Cellulose wins last update. Both cellulose and fiberglass insulation have their pros and cons but i feel that cellulose is the better bet overall.

Fiberglass batts however are less expensive costing on average 0 30 to 0 40 a square foot for 6 inches of insulation. Attic insulation contrast compare. Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic. When comparing blown in insulation both fiberglass and cellulose are nearly identical in price both costing around 0 70 to 0 80 per square foot for 6 inches of insulation.

Because it is denser than fiberglass cellulose is much more resistant to wind washing. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. Thus creating a more energy efficient home. 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.

Cellulose is green cellulose is made of 80 post consumer recycled newsprint. Air moving through a vented attic deposits dirt and dust into fiberglass batts. 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. Dirty fiberglass batts have a significantly reduced r value.

So what are the advantages and disadvantages of each of these. Or 7 inches of cellulose. This is called wind washing. 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.

Cellulose has 38 better air infiltration than fiberglass. Cellulose is more difficult to cheat than fiberglass. Fiberglass insulation blown in attic r2 2 r4 3. Fiberglass batt or roll insulation r3 2.

Attic insulation keeps the desirable temperature in and the undesirable temperature out. Cellulose forms a dense continuous mat of insulation in your attic.