Blown In Fiberglass Vs Cellulose Attic

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.

Blown in fiberglass vs cellulose attic.

You can find high r value insulation produced in both fiberglass and blown cellulose. Isn t fiberglass cheaper than cellulose. Going to insulate your attic everything you need to know about the job and what to pick. More consistent pricing from cellulose manufacturers than fiberglass.

According to research done at the oak ridge national lab fiberglass loses up to 50 of its r value in very cold conditions. Cellulose can get you to r 40. Costs depend on your insulation contractor their suppliers and market conditions. Cellulose insulation blown in wall r 3 8 r3 9.

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. Properly installed they will both remain in place for the life of the home. At this writing our suppliers currently offer cellulose for less than fiberglass. At 3 5 per inch of material the r value of blown in cellulose is 23 better per inch than fiberglass batts.

Good insulation lowers energy bills by trapping heat or cold air inside a building. So can fiberglass if you blow a little more of it on top. Cellulose insulation blown in attic r 3 6 r3 7. Cellulose produces much less static than fiberglass.

With that said most homeowners agree that blown cellulose is slightly more efficient due to the face that it blocks more air than fiberglass. While fiberglass insulation is easier to install and more common used about 85 of the time cellulose insulation is often considered more energy efficient. Cellulose resists blowing when installed fiberglass tends to blow around stick to the attic ceiling and drift. Its installation costs are higher.

Making cellulose a better choice for homes in northern climates. Fiberglass batts however are less expensive costing on average 0 30 to 0 40 a square foot for 6 inches of insulation. Cellulose is less of a health risk compared to fibreglass. 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.

So it seems to me the real debate. Fiberglass manufacturers have developed blown fiberglass insulation they claim won t settle over time.