If openings exceed the 6500mm width, then the conventional high speed PVC roll doors do struggle in wind applications. The DMF High Speed Fold Up Door is an exception, since the design works like a Roman Blind, whereby the door panel folds up to the top, drawn by a series of independent straps. This means the the door panel can have incorporated larger and higher number of windbars to increase lateral support.
- Operational speed is about 1.0m/sec and the doors are custom made to size.
- Standard safety sensors are fitted and a large range of activation sensors are available.