Blown In Fiberglass Vs Cellulose Attic

The higher the r value the more efficient it is.

Blown in fiberglass vs cellulose attic. Its installation costs are higher. This concern can actually be avoided in both cases if the insulation is more densely packed in the spaces but fiberglass will require special training and tools to do so and even then it proves more difficult than cellulose. Going to insulate your attic everything you need to know about the job and what to pick. At this writing our suppliers currently offer cellulose for less than fiberglass.

Cellulose produces much less static than fiberglass. Good insulation lowers energy bills by trapping heat or cold air inside a building. Both fiberglass and cellulose insulation can be installed to completely fill the space inside of wall floor or ceiling cavity. According to research done at the oak ridge national lab fiberglass loses up to 50 of its r value in very cold conditions.

So it seems to me the real debate. You can find high r value insulation produced in both fiberglass and blown cellulose. Costs depend on your insulation contractor their suppliers and market 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.

Cellulose insulation blown in attic r 3 6 r3 7. Isn t fiberglass cheaper than cellulose. At 3 5 per inch of material the r value of blown in cellulose is 23 better per inch than fiberglass batts. Cellulose is less of a health risk compared to fibreglass.

Cellulose insulation blown in wall r 3 8 r3 9. Cellulose is known to create a massive cloud of dust when it is installed meaning breathing apparatus is required if you are considering a large installation. Fiberglass batts however are less expensive costing on average 0 30 to 0 40 a square foot for 6 inches of insulation. Properly installed they will both remain in place for the life of the home.

Fiberglass manufacturers have developed blown fiberglass insulation they claim won t settle over time. More consistent pricing from cellulose manufacturers than fiberglass. 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. Cellulose is easier to keep out of bird blocks and air conditioner condensate pans.

Making cellulose a better choice for homes in northern climates. While fiberglass insulation is easier to install and more common used about 85 of the time cellulose insulation is often considered more energy efficient.