DuPontTM Tyvek® Airguard Sd5 – vapour barrier to protect the thermal insulation layer from excess moisture in the building.
| Parameters | Characteristics |
| Dimensions | DuPont Airguard. 1.5 m x 50 m = 75 m² |
| Water vapour permeability (Sd) | 5 m |
| Weight of material | 108 g/m² |
| Water resistance | Class W1 |
| Fire resistance | Flammability Class E |
| UV stabilisation | 4 months |



