Cellulose Insulation In Attic Ceiling

Cellulose blown in ceiling insulation is a good choice for diyers.

Cellulose insulation in attic ceiling.

To hit code minimums you ve got to add new insulation on top of the old insulation. Many green builders aim for a ceiling rated at r 60 r 70 or even r 100. Stabilized cellulose is used most often in attic roof insulation. Steve easley energy expert and rick chitwood discuss the methods and equipment used to blow cellulose insulation into attics.

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. Or 7 inches of cellulose. You can get to the same place with either material. Blown in cellulose is an environmentally friendly material made from recycled newspaper so it s easier on your skin and lungs.

It s fairly common for cold climate builders to install a very thick layer of cellulose on an attic floor that is above the drywall ceiling of the floor below. This reduces settling and decreases the amount of cellulose needed. When it comes installing cellulose the usual advice is to pile it on. Blown in cellulose has a higher r rating and is less expensive than either blown insulation like fiberglass attic insulation or fiberglass batts.