Fibreglass Vs Cellulose Attic Insulation

Cellulose is green cellulose is made of 80 post consumer recycled newsprint.

Fibreglass vs cellulose 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. Cellulose insulates better than fiberglass especially in very cold weather. 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. Fiberglass batt or roll insulation r3 2.

Dirty fiberglass batts have a significantly reduced r value. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. Here are some details on the differences between these kinds of insulation. Thus creating a more energy efficient home.

Air moving through a vented attic deposits dirt and dust into fiberglass batts. Attic insulation is accomplished with either fiberglass blankets batt or blown in insulation. Or 7 inches of cellulose. Blown in insulation requires a professional.

Both cellulose and fiberglass insulation have their pros and cons but i feel that cellulose is the better bet overall. Batt insulation is available at home centers and lumberyards. This is called wind washing. This allows the insulation to get into the small pockets and crevices that fiberglass wouldn t be able to.

Before choosing blown vs. Cellulose is more difficult to cheat than fiberglass. Fiberglass insulation blown in attic r2 2 r4 3. So what are the advantages and disadvantages of each of these.

You can get to the same place with either material. This keeps the air from moving within the insulation and from penetrations between the air conditioned space and the attic. Cellulose has 38 better air infiltration than 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.

Cellulose wins last update. Cellulose forms a dense continuous mat of insulation in your attic. Batt insulation take time to read this column. Fiberglass insulation and cellulose insulation offer similar r values.

Because it is denser than fiberglass cellulose is much more resistant to wind washing. Cellulose and fiberglass have similar insulating values. Cellulose and fiberglass are the two most popular types of blown insulation and they each have some pros and cons.