Compare Insulations
Considerations and Quality
| Desirable Feature | Fiberglass Batts | Cellulose | Spray Foam |
|---|---|---|---|
| Perfect fit every time | 1 | 1 | |
| Fully inspect able prior to drywall | 1 | ||
| Air barrier not required. | 1 | ||
| Won’t permit convection. | 1 | ||
| Vapor barrier not required. | 1 | ||
| Not damaged by water. | 1 | ||
| No framing distortion. | 1 | 1 | 1 |
| Contains no formaldehyde. | 1 | ||
| No CFC’s or HCFC’s used | 1 | 1 | 1 |
| No settling or sagging. | 1 | ||
| Won’t support combustion. | 1 | 1 | |
| Do not shrink or settle. | 1 | ||
| No drying time required. | 1 | 1 | |
| No food value for rodents and insects. | 1 | ||
| No harmful emissions. | 1 | ||
| No sagging. | 1 | ||
| Structurally sound. | 1 | ||
| R-Value per inch. | 3.2 | 3.5 | 6.5 |
| Total Score | 3 | 4 | 17 |
