Attic Cellulose Insulation Vs Fiberglass

Attic insulation is accomplished with either fiberglass blankets batt or blown in insulation.

Attic cellulose insulation vs fiberglass.

Thus creating a more energy efficient home. Or 7 inches of cellulose. This is called wind washing. Compared to fiberglass cellulose is a superb air blocker.

This allows the insulation to get into the small pockets and crevices that fiberglass wouldn t be able to. Before choosing blown vs. This keeps the air from moving within the insulation and from penetrations between the air conditioned space and the attic. 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.

Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic. Cellulose forms a dense continuous mat of insulation in your attic. Dirty fiberglass batts have a significantly reduced r value. Cellulose has 38 better air infiltration than fiberglass.

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. So what are the advantages and disadvantages of each of these. 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. Fiberglass insulation blown in attic r2 2 r4 3. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. 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.

Air moving through a vented attic deposits dirt and dust into fiberglass batts. Batt insulation take time to read this column. Batt insulation is available at home centers and lumberyards. Fiberglass insulation and cellulose insulation offer similar r values.

Cellulose insulates better than fiberglass especially in very cold weather. You can get to the same place with either material. Cellulose is more difficult to cheat than fiberglass. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass.

Fiberglass batt or roll insulation r3 2. When used in an attic space however both types of insulation are ineffective at air flow across the attic floor such as a strong gust of wind.