Suitable materials for thermal insulation include: mineral wool insulation in accordance with EN 13162; rigid polystyrene foam EPS in accordance with EN 13163; extruded polystyrene foam XPS in accordance with EN 13164; rigid polyurethane foam in accordance with EN 13165 and foam glass in accordance with EN 13167.
Insulation materials that serve as a base for a waterproofing seal must comply with minimum pressure load values.
| Insulating materials | Pressure load in kPa | |
|---|---|---|
| Roofs not in use | Roofs in use | |
| EPS rigid foam | 100 | 150 |
| XPS rigid foam | 200 | 300 |
| PU rigid foam | 100 | 100 |
| Foam glass | 500 | 500 |
| Mineral wool | 60 at 10% compression | 70 at 10% compression |