| Material | Relative humidity (%) | |
| Indoor | 62 | |
| 62 | ||
| Internal plaster | ||
| 62 | ||
| Leca | ||
| 62 | ||
| Polyurethane | ||
| 72 | ||
| Leca | ||
| 73 | ||
| Glass wool | ||
| 77 | ||
| External plaster | ||
| 77 | ||
| Outside | ||
| 77 |