Blown Cellulose Vs Fiberglass Insulation Attic

Air moving through a vented attic deposits dirt and dust into fiberglass batts.

Blown cellulose vs fiberglass insulation attic.

So what are the advantages and disadvantages of each of these insulation materials. Cellulose insulation blown in wall r 3 8 r3 9. Batt insulation take time to read this column. Blown fiberglass on the other hand is made up of very fine strands of glass and these tiny fibers are a carcinogen that can easily be inhaled into your lungs.

Dirty fiberglass batts have a significantly reduced r value. Because it is denser than fiberglass cellulose is much more resistant to wind washing. There are two ways to get your insulation whether fiberglass or cellulose. Both fiberglass and cellulose insulation can be installed to completely fill the space inside of wall floor or ceiling cavity.

Batt insulation is available at home centers and lumberyards. Types of fiberglass and cellulose insulation. Cellulose retains more of its r value through a wider range of temperatures compared to fiberglass. So it seems to me the real debate.

Cellulose insulation blown in attic r 3 6 r3 7. Very common very problematic. Higher r value per inch. Attic insulation is accomplished with either fiberglass blankets batt or blown in insulation.

Loose fill or blown cellulose insulation is manufactured primarily from recycled newspapers a very benign product so it poses virtually no ongoing health risk. 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. How are they similar and how are they different from blown fiberglass vs. This is called wind washing.

Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic. Compared to fiberglass cellulose is a superb air blocker. Blown in insulation requires a professional. Batts or loose fill.

Sometimes loose fill insulation is referred to as blown in insulation because an installer literally blows it into your home with a special machine. Properly installed they will both remain in place for the life of the home. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. Cellulose has an r value of 3 5 3 7 per inch where fiberglass has around 2 1 2 7 r per inch.

Blown in cellulose homeowner benefits. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass.