List of insulation materials
| Material | RSI-value | R-value | RSI-value |
| Vacuum insulated panel | |||
| Silica aerogel | |||
| Polyurethane rigid panel initial | |||
| Polyurethane rigid panel aged 5–10 years | |||
| Polyurethane rigid panel initial | |||
| Polyurethane rigid panel aged 5–10 years | |||
| Foil faced Polyurethane rigid panel | 45–48 | ||
| Foil-faced polyisocyanurate rigid panel initial | 55 | ||
| Foil-faced polyisocyanurate rigid panel aged 5–10 years | |||
| Polyisocyanurate spray foam | |||
| Closed-cell polyurethane spray foam | |||
| Phenolic spray foam | |||
| Thinsulate clothing insulation | |||
| Urea-formaldehyde panels | |||
| Urea foam | |||
| Extruded expanded polystyrene high-density | 26–40 | ||
| Polystyrene board | |||
| Phenolic rigid panel | |||
| Urea-formaldehyde foam | |||
| High-density fiberglass batts | |||
| Extruded expanded polystyrene low-density | |||
| Icynene loose-fill | |||
| Molded expanded polystyrene high-density | 22–32 | ||
| Home Foam | |||
| Rice hulls | 24 | ||
| Fiberglass batts | |||
| Cotton batts | |||
| Molded expanded polystyrene low-density | |||
| Icynene spray | |||
| Open-cell polyurethane spray foam | |||
| Cardboard | |||
| Rock and slag wool batts | |||
| Cellulose loose-fill | |||
| Cellulose wet-spray | |||
| Rock and slag wool loose-fill | |||
| Fiberglass loose-fill | |||
| Polyethylene foam | |||
| Cementitious foam | |||
| Perlite loose-fill | |||
| Wood panels, such as sheathing | |||
| Fiberglass rigid panel | |||
| Vermiculite loose-fill | |||
| Vermiculite | 16–17 | ||
| Straw bale | 16–22 | ||
| Papercrete | |||
| Softwood | 7.7 | ||
| Wood chips and other loose-fill wood products | |||
| Aerated/Cellular Concrete | |||
| Snow | |||
| Hardwood | 5.5 | ||
| Brick | 1.3–1.8 | ||
| Glass | |||
| Poured concrete | 0.43–0.87 |