Fiberglass Insulation Vs Cellulose Insulation For Attic

Attic insulation keeps the desirable temperature in and the undesirable temperature out.

Fiberglass insulation vs cellulose insulation for attic. Cellulose insulates better than fiberglass especially in very cold weather. 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. Cellulose is more difficult to cheat than fiberglass. Attic insulation contrast compare.

Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. Fiberglass insulation blown in attic r2 2 r4 3. Cellulose wins last update. Cellulose forms a dense continuous mat of insulation in your attic.

This allows the insulation to get into the small pockets and crevices that fiberglass wouldn t be able to. 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. This is called wind washing. Or 7 inches of cellulose.

Don t let money fly out of your roof. This keeps the air from moving within the insulation and from penetrations between the air conditioned space and the attic. The attic is one of the most essential areas of the home to ensure proper insulation in. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass.

Air moving through a vented attic deposits dirt and dust into fiberglass batts. So what are the advantages and disadvantages of each of these. 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. Posted september 19 2019 by lewis insulation filed under attic insulation.

Because it is denser than fiberglass cellulose is much more resistant to wind washing. 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 and cellulose insulation offer similar r values. Cellulose has 38 better air infiltration than fiberglass.

Dirty fiberglass batts have a significantly reduced r value. Fiberglass batt or roll insulation r3 2. Fiberglass batts however are less expensive costing on average 0 30 to 0 40 a square foot for 6 inches of insulation. 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. 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.