Fibreglass Vs Cellulose Attic Insulation

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.

Fibreglass vs cellulose attic insulation.

Unless you opt for spray foam then the insulation choices normally come down to 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. Or 7 inches of cellulose.

Here are some details on the differences between these kinds of insulation. Cellulose is more difficult to cheat than fiberglass. 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. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass.

Cellulose is green cellulose is made of 80 post consumer recycled newsprint. This keeps the air from moving within the insulation and from penetrations between the air conditioned space and the attic. Because it is denser than fiberglass cellulose is much more resistant to wind washing. This allows the insulation to get into the small pockets and crevices that fiberglass wouldn t be able to.

Batt insulation take time to read this column. 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. You can get to the same place with either material. Cellulose wins last update.

Fiberglass batt or roll insulation r3 2. Cellulose and fiberglass are the two most popular types of blown insulation and they each have some pros and cons. This is called wind washing. Cellulose and fiberglass have similar insulating values.

Batt insulation is available at home centers and lumberyards. Thus creating a more energy efficient home. Blown in insulation requires a professional. Dirty fiberglass batts have a significantly reduced r value.

Fiberglass insulation and cellulose insulation offer similar r values. Fiberglass insulation blown in attic r2 2 r4 3. Cellulose forms a dense continuous mat of insulation in your attic. Attic insulation is accomplished with either fiberglass blankets batt or blown in insulation.

Cellulose insulates better than fiberglass especially in very cold weather. Cellulose has 38 better air infiltration than fiberglass. Before choosing blown vs.