Cellulose Versus Fiberglass Attic Insulation

So what are the advantages and disadvantages of each of these.

Cellulose versus fiberglass attic insulation.

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 and fiberglass are fibrous insulation which can easily trap moisture. You can get to the same place with either material.

Cellulose insulation blown in wall r 3 8 r3 9. So it seems to me the real debate. Properly installed they will both remain in place for the life of the home. 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.

If paired with a vapor barrier in a high moisture environment like your basement it can be problematic. Cellulose insulation blown in attic r 3 6 r3 7. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. When using cellulose blown in dry insulation it requires a machine to achieve its purpose and a training session from wherever you rent the blower from.

Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. Lastly when blown onto the floor of an attic with vented soffits both loose fill cellulose and fiberglass are susceptible to wind.