Most insulation products are assigned an "R-Value".

R-Value means resistance to heat flow.

The higher the R-Value the better insulating power a product has.

The current code for new construction and state recommendation for pre-existing home R-Values are:
R-20 in exterior walls and
R-60 in attic ceilings.

Fiberglass VS Cellulose

Installing cellulose or fiberglass loose-fill insulation is a great investment for your home and your pocketbook!

Both are great choices in having an energy efficient building.

Fiberglass insulation is made from recycled glass products.

Cellulose insulation is made from recycled papers products and uses up to 80% less energy to manufacture. Cellulose loose-fill insulation is up to 50% more efficient in cold temperatures.

Fiberglass insulation does not settle after installation in open attics and is naturally fire, pest, and mold resistant. Fiberglass insulation is far better suited to handle high moisture areas such as basements and crawl spaces.

Cellulose insulation settles up to 20% after installation in open attics.  To accommodate for this settling there is an "installed" thickness and a "settled" thickness that an experienced installer must follow. Cellulose is treated with Boric Acid to achieve its fire, pest, and mold resistant rating.