Cellulose Vs Fiberglass Blown In Insulation Attic

Cellulose has an r value of 3 5 3 7 per inch where fiberglass has around 2 1 2 7 r per inch.

Cellulose vs fiberglass blown in insulation attic.

Energy saver and attic systems we prefer blown in cellulose over blown in and fiberglass batts for several reasons. In most situations we prefer the air and heat flow resistance of. Fiberglass batts however are less expensive costing on average 0 30 to 0 40 a square foot for 6 inches of insulation. So it seems to me the real debate.

R value measures the resistance of heat flow through a material the higher the r value the better the material is at resisting heat flow. Both fiberglass and cellulose insulation can be installed to completely fill the space inside of wall floor or ceiling cavity. Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic. So what are the advantages and disadvantages of each of these insulation materials.

The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. Blown in cellulose homeowner benefits. Blown cellulose is typically the preferred choice of insulation for attics. Cellulose retains more of its r value through a wider range of temperatures compared to fiberglass.

Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. How are they similar and how are they different from blown fiberglass vs. Properly installed they will both remain in place for the life of the home. 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.

Cellulose insulation blown in wall r 3 8 r3 9. Blown in insulation sometimes referred to as loose fill insulation is insulation literally blown in with a blowing machine. There are two ways to get your insulation whether fiberglass or cellulose. Very common very problematic.

Batts or loose fill. The material can be either fiberglass or cellulose and consists of fiber foam or other materials in small particles and can even feel like down. Higher r value per inch. 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.