Insulation, Radiant and Vapor Barriers - Insulsafe Fiberglass vs. Green Fiber Cellulose

Hi,

I was wondering what is the better material to use for insulation for retrofit, Insulsafe Fiberglass or Green Fiber Cellulose?

I have conflicting information from different contractors with regards to performance and price. One says Fiberlgass is cheaper and the other says Cellulose is cheaper. One says Fiberglass is better performing and the other says Cellulose is better performing. :confused:

Any help would be appreciated.

Thanks!

Alex

Where is the insulation going, attic, walls? What do you have there now?

Before you add any insulation be sure to air seal everywhere you can. Cellulose would do some of it for you, but you don't want to be messing up the insulation job afterwords.

Fiberglass does not block air movement where as cellulose does. If wet either performes poorly, but fiberglass has a chance of drying out, cellulose does not dry well. My vote is for cellulose where you can, it is generally your best buy for the buck.

Bud

I have no insulation right now.

I plan to do the attic, upstairs walls where it is easily accessible from the inside, and the subfloor with batts.

Blow in cellulose!! ENOUGH SAID!!!! :thumbup: I have it through my whole 1942 house, did the walls, and attic myself. It performs great, and its cheaper!! Good luck