A high-vapor permeable, watertight roofing underlay ensures proper drying of structures and insulation materials.
- ensures proper drying of the construction and insulation materials
- enables the formation of a pleasant microclimate in the space
- due to its features it increases the thermal insulation properties by about 10%
- extends the lifetime of the construction, substructure and cover
- the possibility of installing the roof repayment, horns or diagonal concrete slab
- prevents penetration of the pest and thus protects the structure from decay and rotting
- prevents cooling and condensation of water in thermal insulation
| CHARACTERISTICS | MEASUREMENT UNIT | VALUE |
|---|---|---|
| Length | m | 50 |
| Width | m | 1.5 |
| Area | m2 | 75 |
| Weight | g/m2 | 150 (±7%) |
| Tensile strength | N/50 mm | 290/235 (±20%) |
| Resistance to water penetration | class | W1 |
| Fire reaction | class | E |
| Flexibility at low temperatures | °C | -40 |
| Vapor permeability | Sd | 0,02 m (±15%) |
| UV stability | month | 3 |
| Consumption ~ 1,1 m2 roof underlays/m2 roof surface |