While fiberglass insulation remains popular, homeowners should consider cellulose insulation for their next home improvement project. Not only is cellulose insulation a sustainable material, but it can save up to one fifth of the energy costs when compared to fiberglass. And although it may be more difficult to install, cellulose insulation offers several advantages that make it worth a look.

Image Courtesy Cellulose.org

R-value is King

Although cellulose insulation has a very slight advantage in R-value per square inch of material when compared to fiberglass, the real gains go beyond a single number. Perhaps the largest advantage of cellulose insulation is its ability to eliminate gaps between the insulation and wall. These gaps are often a large source of energy loss, and one that fiberglass insulation cannot easily address.

In fact, some studies indicate that cellulose insulation can prevent 20% more energy loss than fiberglass due to its superior ability to reduce air infiltration.