Blown Insulation For Attics Fiberglass Vs Cellulose

Cellulose blown in ceiling insulation is a good choice for diyers.

Blown insulation for attics fiberglass vs cellulose. Or 7 inches of cellulose. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. Cellulose insulation blown in wall r 3 8 r3 9. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass.

Properly installed they will both remain in place for the life of the home. 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. Blown in cellulose homeowner benefits. So it seems to me the real debate.

Loose fill or blown cellulose insulation is manufactured primarily from recycled newspapers a very benign product so it poses virtually no ongoing health risk. In most situations we prefer the air and heat flow resistance of. 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. Cellulose insulation blown in attic r 3 6 r3 7.

Higher r value per inch. Cellulose has an r value of 3 5 3 7 per inch where fiberglass has around 2 1 2 7 r per inch. 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. You can get to the same place with either material.

So what are the advantages and disadvantages of each of these insulation materials. Blown in cellulose has a higher r rating and is less expensive than either blown insulation like fiberglass attic insulation or fiberglass batts. Cellulose retains more of its r value through a wider range of temperatures compared to fiberglass. Energy saver and attic systems we prefer blown in cellulose over blown in and fiberglass batts for several reasons.

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. Both fiberglass and cellulose insulation can be installed to completely fill the space inside of wall floor or ceiling cavity. Blown cellulose is typically the preferred choice of insulation for attics. How are they similar and how are they different from blown fiberglass vs.

Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic.