The simple and nominal R-values of common building materials are listed below:
| Masonry/Stone/Brick | .80 per inch |
| Wood | .90-1.3 per inch |
| Concrete Masonry Unit (CMU) 8” | 1.11 per inch |
| Drywall | .90 per inch |
| Fiberglass Batt | 3.20 per inch |
| Blown Cellulose | 3.60 per inch |
| Polystryrene (EPS) | 5.00 per inch |
| Polystyrene (XPS) | 6.00 per inch |
| Polyisocyanurate Foil faced (polyiso) | 7.20 per inch |
| Spray polyurethane foam (closed cell) | 6.50 per inch |
| Spray polyurethane foam (open cell) | 3.60 per inch |
| Air film (exterior) | .17 per inch |
| Air film (interior) | .68 per inch |
| Air space from ½” to 4” | 1.00 per inch |
| Plywood sheathing | 1.25 per inch |
| Aluminum/Vinyl siding (uninsulated) | .61 per inch |
| Aluminum/Vinyl siding (1/2” insulation) | 1.80 per inch |