Cellulose Vs Fiberglass Blown In Insulation Attic

Fiberglass batts however are less expensive costing on average 0 30 to 0 40 a square foot for 6 inches of insulation.

Cellulose vs fiberglass blown in insulation attic.

Loose fill fiberglass has an r value of r 2 2 to 2 7 per inch. Making cellulose a better choice for homes in northern climates. You can get to the same place with either material. Installation costs for blown in insulation costs around 2 a square foot where installation costs for batts is around 1 a square foot.

Cellulose has an r value of r 3 2 to 3 8 per inch. Cellulose is easier to keep out of bird blocks and air conditioner condensate pans. The higher the r value the higher the performance with heat the insulation has. Cellulose resists blowing when installed fiberglass tends to blow around stick to the attic ceiling and drift.

The paper is broken down into cellular fibers that provide insulation. Loose fill or blown cellulose insulation is manufactured primarily from recycled newspapers a very benign product so it poses virtually no ongoing health risk. Fiberglass insulation contains billions of tiny glass fibers which contain trapped bubbles of air. Both fibreglass and cellulose are the two most inexpensive insulation products that you could use.

With that said most homeowners agree that blown cellulose is slightly more efficient due to the face that it blocks more air 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. It is made of shredded paper plus a fire retardant chemical known as a borate. You can find high r value insulation produced in both fiberglass and blown cellulose.

The higher the r value the more efficient it is. According to research done at the oak ridge national lab fiberglass loses up to 50 of its r value in very cold conditions. What this basically means is the ability the insulation has to resist heat flow. More consistent pricing from cellulose manufacturers than fiberglass.

Or 7 inches of cellulose. Cellulose produces much less static than fiberglass. At 3 5 per inch of material the r value of blown in cellulose is 23 better per inch than fiberglass batts. Fibreglass is perhaps the most common product available in the market for insulation outpacing its close competitor cellulose by 50 1.

Blown fiberglass on the other hand is made up of very fine strands of glass and these tiny fibers are a carcinogen that can easily be inhaled into your lungs. Cellulose insulation includes cellulose cells that have natural insulating power. Another major weakness of fiberglass insulation which does nothing to stop air from passing through it.