Blown Cellulose Insulation Vs Blown Fiberglass Insulation Attic

Cellulose produces much less static than fiberglass.

Blown cellulose insulation vs blown fiberglass insulation attic.

Making cellulose a better choice for homes in northern climates. You can find high r value insulation produced in both fiberglass and blown cellulose. At 3 5 per inch of material the r value of blown in cellulose is 23 better per inch than fiberglass batts. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass.

You can get to the same place with either material. The higher the r value the more efficient it is. Cellulose is easier to keep out of bird blocks and air conditioner condensate pans. 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.

So what are the advantages and disadvantages of each of these insulation materials. Installation costs for blown in insulation costs around 2 a square foot where installation costs for batts is around 1 a square foot. More consistent pricing from cellulose manufacturers than fiberglass. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass.

According to research done at the oak ridge national lab fiberglass loses up to 50 of its r value in very cold conditions. With that said most homeowners agree that blown cellulose is slightly more efficient due to the face that it blocks more air than fiberglass. How are they similar and how are they different from blown fiberglass vs. Cellulose resists blowing when installed fiberglass tends to blow around stick to the attic ceiling and drift.