Cellulose Vs Fiberglass In Attic

Both cellulose and fiberglass insulation have their pros and cons but i feel that cellulose is the better bet overall.

Cellulose vs fiberglass in attic.

Or 7 inches of cellulose. This is called wind washing. 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. Properly installed they will both remain in place for the life of the home.

Fiberglass vs cellulose the pros and cons by comparison posted on mar 23 2017 there are many different types of insulation to use in your home s walls attic and basement but the two most types of insulation are fiberglass and cellulose. Compared to fiberglass cellulose is a superb air blocker. Cellulose has an r value of 3 5 3 7 per inch where fiberglass has around 2 1 2 7 r per inch. Since cellulose is blown in it fills all the gaps crevices nooks and crannies in your attic unlike batts that can leave gaps.

Both fiberglass and cellulose insulation can be installed to completely fill the space inside of wall floor or ceiling cavity. Air moving through a vented attic deposits dirt and dust into fiberglass batts. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. So what are the advantages and disadvantages of each of these.

Cellulose insulates better than fiberglass especially in very cold weather. Cellulose retains more of its r value through a wider range of temperatures compared to fiberglass. Cellulose insulation blown in attic r 3 6 r3 7. Higher r value per inch.

Cellulose wins last update. Fiberglass batts however are less expensive costing on average 0 30 to 0 40 a square foot for 6 inches of insulation. You can get to the same place with either material. Blown cellulose is typically the preferred choice of insulation for attics.

So it seems to me the real debate. Blown in cellulose homeowner benefits. Cellulose insulation blown in wall r 3 8 r3 9.