| Features |
Fiberglass |
Wet Spray Cellulose |
Spray Urethane |
Creates Its Own Air Seal |
NO |
NO |
YES |
| Perfect Fit, Expands To Fill Voids |
NO |
NO |
YES |
| Does Not Sag Or Settle Over Time |
NO |
NO |
YES |
| High R Value Per Inch |
NO |
NO |
YES |
| Won't Absorb Water |
YES |
NO |
YES |
| Air Borne Moisture In Walls Reduced |
NO |
NO |
YES |
| Stops Air Convection In Wall Cavities |
NO |
YES |
YES |
| No Food Value For Insects or Mold |
YES |
NO |
YES |
| No Drying Time Required |
YES |
NO |
YES |
| Adds Structural Strength |
NO |
NO |
YES |
| Highest Rating For Controlling Air Leakage |
NO |
NO |
YES |
| Reduces Condensating Surfaces |
NO |
NO |
YES |
| Listed As Approved Flood Resistant Material |
NO |
NO |
YES |
| R Value Is Effected By Wind Movement |
YES |
YES |
NO |
| Air Barrier On Interior AND Exterior Surface |
NO |
NO |
YES |
| Low Initial Cost |
YES |
YES |
NO |
