Cellulose provides an r value of approximately 3 5 per inch.
Best cellulose insulation for attic.
Blown in cellulose is an environmentally friendly material made from recycled newspaper so it s easier on your skin and lungs.
You can get to the same place with either material.
Loose fill cellulose is relatively inexpensive yet still has an r value of about 3 5 per inch of thickness compared to fiberglass r value between r3 to r4 per inch.
Fiberglass batts offer the easiest way to add attic insulation or just about any area of your home.
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.
To hit code minimums you ve got to add new insulation on top of the old insulation.
Blown in cellulose has a higher r rating and is less expensive than either blown insulation like fiberglass attic insulation or fiberglass batts.
Among commonly used types of insulation there are mineral wool or fiberglass rolls and batts rigid fiberglass board loose fill materials cellulose mineral wool etc.
Pros and cons of cellulose attic insulation.
Loose fill cellulose insulation can settle around and conform to most of the obstructions found in walls and attics.
Fiberglass batt attic insulation pros and cons.
The big disadvantage with spray foam is cost.
Cellulose blown in ceiling insulation is a good choice for diyers.
Or 7 inches of cellulose.
I d blow insulation on the attic floor after air sealing of course.
Pros and cons of attic insulation types.
Modern technology of blanket insulation today is considered the best insulation for attic.