Blown Insulation For Attics Fiberglass Vs Cellulose

When blown into attics and wall spaces loose fill fiberglass offers an average r 2 5 thermal value per inch the higher the number the greater the insulating effect.

Blown insulation for attics fiberglass vs cellulose.

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. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic.

How are they similar and how are they different from blown fiberglass vs. In most situations we prefer the air and heat flow resistance of. Both fiberglass and cellulose insulation can be installed to completely fill the space inside of wall floor or ceiling cavity. 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.

Cellulose blown in ceiling insulation is a good choice for diyers. 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. You can get to the same place with either material. So what are the advantages and disadvantages of each of these insulation materials.

Energy saver and attic systems we prefer blown in cellulose over blown in and fiberglass batts for several reasons. Loose fill or blown cellulose insulation is manufactured primarily from recycled newspapers a very benign product so it poses virtually no ongoing health risk. Cellulose insulation blown in wall r 3 8 r3 9. Blown in cellulose has a higher r rating and is less expensive than either blown insulation like fiberglass attic insulation or fiberglass batts.

Higher r value per inch. So it seems to me the real debate. Or 7 inches of cellulose. Properly installed they will both remain in place for the life of the home.

Blown in cellulose homeowner benefits. Fiberglass batts however are less expensive costing on average 0 30 to 0 40 a square foot for 6 inches of insulation. 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.

Blown in cellulose is an environmentally friendly material made from recycled newspaper so it s easier on your skin and lungs.