| 5.1.3 | Thermal Performance of Insulation | ||||||||||||||||
| R-Value per Inch (1) | R-Value per Inch (1) | ||||||||||||||||
| Fiberglass (2) | Perlite/Vermiculite | ||||||||||||||||
| Batts | 3.1 - 4.3 | (3) | Loose-Fill | 2.1 - 3.7 | |||||||||||||
| Loose-Fill | 2.5 - 3.7 | Foam Boards | |||||||||||||||
| Spray-Applied | 3.7 - 3.9 | Expanded Polystyrene | 3.9 - 4.4 | ||||||||||||||
| Rock Wool (2) | Polyisocyanurate/Polyurethane | 5.6 - 7.0 | |||||||||||||||
| Loose-Fill | 2.5 - 3.7 | Phenolic | 4.4 - 8.2 | ||||||||||||||
| Cellulose | Reflective Insulation | 2 - 17 | |||||||||||||||
| Loose-Fill | 3.1 - 3.7 | Vacuum Powder Insulation | 25 - 30 | ||||||||||||||
| Spray-Applied | 2.9 - 3.5 | Vacuum Insulation Panel | 20 - 100 | ||||||||||||||
| Note(s): | 1) Hr-SF-F/Btu-in. Does not include the effects of aging and settling. 2) Mineral fiber. 3) System R-Value depends on heat-flow direction and number of air spaces. | ||||||||||||||||