Attic Insulation Fiberglass Vs Cellulose

Both cellulose and fiberglass insulation have their pros and cons but i feel that cellulose is the better bet overall.

Attic insulation fiberglass vs cellulose.

This is called wind washing. Compared to fiberglass cellulose is a superb air blocker. Fiberglass insulation blown in attic r2 2 r4 3. This keeps the air from moving within the insulation and from penetrations between the air conditioned space and the attic.

Before choosing blown vs. Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic. Or 7 inches of cellulose. Batt insulation is available at home centers and lumberyards.

Check out our many resources below. Fiberglass batt or roll insulation r3 2. Air moving through a vented attic deposits dirt and dust into fiberglass batts. Cellulose is more difficult to cheat than fiberglass.

This allows the insulation to get into the small pockets and crevices that fiberglass wouldn t be able to. Attic insulation is accomplished with either fiberglass blankets batt or blown in insulation. Cellulose insulates better than fiberglass especially in very cold weather. Because it is denser than fiberglass cellulose is much more resistant to 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. Blown in insulation requires a professional. Cellulose wins last update. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass.

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. Understanding what you are putting into your home is important to you as a homeowner a parent and an individual and its important to us that you know the facts. Thus creating a more energy efficient home.

Batt insulation take time to read this column. We have written many articles on the different types of insulation. 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. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass.

So what are the advantages and disadvantages of each of these. Cellulose has 38 better air infiltration 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.