The best performing way to insulate an attic doesn t align with the most cost effective way.
Best cellulose insulation for attic.
Modern technology of blanket insulation today is considered the best insulation for attic.
Understanding the pros of different attic insulation alternatives will assist you determine which insulation alternative is best for your house.
But surely you already knew that.
Loose fill cellulose insulation can settle around and conform to most of the obstructions found in walls and attics.
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.
Rolls and batts are produced of mineral wool and fiberglass.
Fiberglass batts cellulose loose fill fiberglass and spray foam.
Whether you pick fiberglass or cellulose choosing to insulate at all will be the best choice you make.
First let s discuss the most common types of insulation available for attics.
I d blow insulation on the attic floor after air sealing of course.
With that out of the way let s address the question from the title of this article.
When walls are already finished injecting loose fill cellulose insulation is one of the few ways of adding.
The big disadvantage with spray foam is cost.
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.
There are other materials and systems that you can use to insulate your attic.
If you ve got bare uninsulated areas on the floor of your attic getting some kind of insulation in there is a must.