The Nergeco Trekking curtain is designed with flexible horizontal stiffeners, pushing the curtain from the inside to the furthest edge of the side guides. At the same time, they stretch the curtain vertically from top to bottom. Thus, wind load is evenly distributed over the whole door, resulting in a wind-resistance up to class 5.
The transparent material allows people to see oncoming traffic. Long-term transparency is assured, as the materials are anti-fatigue and treated against UV and creep. The Nergeco vision panels span the whole width of the door.