Seven Storms solution

The doors, five of which measure 5 x 5m, and two 3 x 3m, were installed to the despatch building on busy door openings. They allow quick and easy access to the openings where sectional overhead doors were being left open resulting in heat loss and an unpleasant working environment.

Hart provided expert design advice, specification and installation. A Hart spokesman says: “Speedor Storm is being increasingly used in high traffic situations where exceptional wind resistance is required. The energy-saving potential of this door is also particularly high.

“We find the Storm is used predominately as an external rolling door with a special guide system offering wind resistance up to class 5 as defined by DIN EN 12424, on larger openings up to 8m x 8m.

“Capable of withstanding winds up to 90 mph when closed, the Storm is a robust and reliable system.”