Strength and ventilation
The tension rod applied to TN tunnels makes them more sturdy and the polycentric profile of their section provides them with ideal behaviour even when subject to the action of wind. They are therefore recommended also for Mediterranean coastal areas.
They can be equipped with front doors, transom window lunettes and side roll-up windows.
The presence of the tension rod also makes it possible to cultivate high plants that climb along tutors hanging on the structural elements of the tunnel.
The TN model can also be heated quite conveniently as it is technically possible to cover it with a double inflated film and due to the low dispersing surface.
- Maximum width: 9 m
- Maximum height under the tension rod: 2,40 m
- Classification standard EN 13031-1: B5 (service life 5 years)
- Main use: vegetable and flower nursery in snow-free areas, mushroom bed, cost-effective choice.