Is a solid, reliable overhead door that combines De Nardi technology and experience. The door frame is made with an exclusive reinforced steel profile designed to house the rubber sealing strip. A pratical system of counterweights is inserted into the galvanised steel side uprights for easy, erfortless opening. The metal parts are galvanised and standard painted in a dark brown colour or ral-colours with stove-enamelled polyester powder finish for maximum weatherproofing. The door, the jambs and the head are covered in wood on the outside; the vertical panelling or the other coverings with special aesthetics, are done wih various types of wood, all guaranteed for durability by a long-term seasoning and a specific treatment. The wood is treated with fillers and resin-based paint varnishes in aqueous dispersion, thereby ensuring absolute non-toxicity for the indoor environment in order to safeguard the health of the inhabitants. The inside of the Pratic Legno ISOLMANT overhead door is covered with okoumè and frames; high density selfextinguishing polystyrene has been inserted between the external covering door and the internal panels to provide good sound-proofing and to improve heat insulation. The Pratic Legno ISOLMANT overhead door may be supplied with pedestrian door, glazed areas and, for even easier opening, with an electric motor. Pratic Legno ISOLMANT comes supplied complete with Yale type lock with handle, set-up for motor-drive unit, anti fall system against the accidental breaking of the cables, anchoring rag bolts; is delivered ready assembled for easy fitting and packed with polyethylene sheets.
Safety according to CE marking
Prestige overhead doors are CE certified and they are equipped with the following safety systems:
Anti-fall system with double certified cable: breaks cable? The second intervenes. Breaks the second cable? The door is locked in the position in which it is, thanks to the parachute of the series. Since 1998 it has never occurred the break of the both certified cables.
Limitation of forces: an electronic system adjusts the engine power, maintaining the impact forces within the parameters of safety.
Mechanical safety rib: provides continuos self-test excluding any possibility of uncontrolled failure.
Protection of lever arms: safety and beauty. The levers are designed and positioned as the law requires, are coated to balance into the overhead door.
Durability and operability: the overhead doors by De Nardi, were tested for over 20.000 opening and closing cycles without ever needing any extraordinary maintenance and/or the replacement of components.
Wind resistance: certified class 2.
1 Anti-fall system with double certified cable
2 Limitation of the forces
3 Mechanical safety edge
4 Levers protection