| Feature |
Fiber Glass Batts |
Cellulose |
Open Cell Spray Foam |
Closed Cell Spray Foam |
| Class I Fire Rated |
✓ |
✓ |
✓ |
✓ |
| Controls Air Leakage |
|
|
✓ |
✓ |
| Won't Sage or Settle |
|
|
✓ |
✓ |
| Doesn't Shrink |
✓ |
|
|
✓ |
| Will not support mold growth |
|
|
✓ |
✓ |
| Fills all cracks and crevices |
|
|
✓ |
✓ |
| Contains no formaldehyde |
|
✓ |
✓ |
✓ |
| Deflects water leakage |
|
|
|
✓ |
| Moisture vapor perm less than 1.0 (@ R-19) (Vapor Retarder) |
|
|
|
✓ |
| Ability for R-19 (or higher) in 2x4 construction |
|
|
|
✓ |
| Glues building into solid mass |
|
|
|
✓ |
| Always meets energy star requirements unaided |
|
|
|
✓ |
| Stops convection currents |
|
✓ |
✓ |
✓ |
| Stops air infiltration |
|
|
|
✓ |
| Stops all wind intrusion |
|
|
|
✓ |
| Stops moisture accumulation |
|
|
|
✓ |
| Totals |
2 |
4 |
7 |
16 |
| R-Value per Inch |
3.2 |
3.5 |
3.8 |
6.6 |
