Attic Insulation Fiberglass Vs Cellulose

You can get to the same place with either material.

Attic insulation fiberglass vs cellulose.

Or 7 inches of cellulose. This allows the insulation to get into the small pockets and crevices that fiberglass wouldn t be able to. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. Cellulose insulates better than fiberglass especially in very cold weather.

Fiberglass insulation blown in attic r2 2 r4 3. Compared to fiberglass cellulose is a superb air blocker. Fiberglass insulation and cellulose insulation offer similar r values. Cellulose forms a dense continuous mat of insulation in your attic.

Fiberglass batt or roll insulation r3 2. We have written many articles on the different types of insulation. So what are the advantages and disadvantages of each of these. Check out our many resources below.

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. Cellulose is more difficult to cheat than fiberglass. Before choosing blown vs.

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. 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. Air moving through a vented attic deposits dirt and dust into fiberglass batts. 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. Because it is denser than fiberglass cellulose is much more resistant to wind washing. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. 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. Batt insulation is available at home centers and lumberyards. 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. Batt insulation take time to read this column.

Dirty fiberglass batts have a significantly reduced r value. This is called wind washing. Cellulose wins last update.