| Building envelope | Required U-value (W/m2∙K) | ||
| Exterior wall | Adjacent to outside directly | Less than 0.36 | |
| Adjacent to outside indirectly | Less than 0.49 | ||
| Roof | Adjacent to outside directly | Less than 0.20 | |
| Adjacent to outside indirectly | Less than 0.29 | ||
| Floor of the lowest floor | Adjacent to outside directly | Floor heating | Less than 0.30 |
| No floor heating | Less than 0.41 | ||
| Adjacent to outside indirectly | Floor heating | Less than 0.43 | |
| No floor heating | Less than 0.58 | ||
| Sidewall of apartment building | Less than 0.27 | ||
| Floor between levels | Floor heating | Less than 0.81 | |
| No floor heating | Less than 1.16 | ||
| Fenetrations and doors | Adjacent to outside directly | Apartment | Less than 2.10 |
| Others | Less than 2.40 | ||
| Adjacent to outside indirectly | Apartment | Less than 2.80 | |
| Others | Less than 3.20 | ||