| Features |
Fiberglass |
Wet Spray Cellulose |
Rock Wool |
Our 1/2 1b Foam |
Competitor's Foam |
| R-Value w/4 mph wind load (LA Avg.) |
3" = R-5.5 |
3" = R-6.5 |
3" = R-6.5 |
3" = R-30* |
R-12 to R-22 |
| Mold Growth |
Yes |
Yes |
No |
No |
No |
| Food value for bugs, mold or termites |
Yes |
Yes |
Yes |
No |
No |
| Smoke Development (lower is better) |
281 |
294 |
277 |
216 |
400 |
| Sound Absorption (higher is better) |
58 |
69 |
56 |
79 |
68 to 75 |
| Supports Fire |
No |
No |
No |
No |
No |
| Resists bugs, dust & pollen from entering a home |
No |
No |
No |
Yes |
Yes |
| Absorbs moisture in the air |
Yes |
Yes |
Yes |
No |
No |
| Damaged by water |
Yes |
Yes |
Yes |
No |
No |
| Contains formaldehyde |
Yes |
Yes |
No |
No |
No |
| Off gassing |
No |
No |
No |
No |
Yes |
| Settling or packing down |
Yes |
Yes |
Yes |
No |
No |
| Shrink or sag over time |
Yes |
Yes |
Yes |
No |
Yes |
| Air & moisture leakage |
Yes |
Yes |
Yes |
No |
No |
| Ratings |
21 |
28 |
35 |
100 |
72 |