Cellulose Versus Fiberglass Attic Insulation

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. 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.

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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.

Cellulose versus fiberglass attic insulation.

The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. Fiberglass insulation is the easiest insulation product on the market to install and if installed correctly the most effective product on the market for home attic insulation. Both fiberglass and cellulose insulation can be installed to completely fill the space inside of wall floor or ceiling cavity. Cellulose and fiberglass are fibrous insulation which can easily trap moisture.

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

Cellulose insulation blown in wall r 3 8 r3 9. Cellulose insulation blown in attic r 3 6 r3 7. Properly installed they will both remain in place for the life of the home. You can get to the same place with either material.

Or 7 inches of cellulose. So what are the advantages and disadvantages of each of these.

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