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Sectional Overhead Doors

Brief Description

Overhead sectional doors are ideal in situations where head room may be restricted, and there is insufficient space to fit the box required for a roller shutter. This type of door slides upwards on side runners, which continue onto the roof area, so that aperture space is maximised when the door is in the open position. With insulating and sound reducing qualities, our overhead sectional doors lend themselves to a wide range of industrial and commercial environments. A foam core between the inner and outer steel sheets of the door panels prevents transmission of heat or cold, delivering a thermal performance which exceeds building regulations. These high quality doors are extremely robust, and constructed to give long service. In the event that a door incurs accidental damage, it can be easily repaired using replacement components.

Ideal uses / applications
  • Warehouses
  • Factories
  • Large apertures (openings in excess of 16sqm)
  • Industrial units

Key Facts

  • Can span distances of up to 10 Meters Wide
  • Can be upgraded to Secure By Design Status or LPS1175 Security ratings 1-4 – see our High Security shutter page here
  • Can be powder coated or plastisol coated to any RAL Colour
  • Can be made from 18, 20, or 22swg as standard and any other gauge if requested
  • Wicket access doors can be incorporated into the shutter if needed

Specification/Technical Data

Curtain

The curtain is constructed from galvanised continuously interlocked steel laths that are securely held in place by end locks. A number of thicknesses and profiles are available according to individual circumstances such as size, wind loading etc. Bottom rails are generally galvanised and roll-formed into a tee section.

Guides

Vertical guides are formed from rolled steel or fabricated dependent on size and are supplied with appropriate angles for fixing to the structure.

Endplates

Mild steel of appropriate thickness in relation to door thickness is prime painted and supplied with angles for fixing to he structure.

Barrel

Our barrels are normally made from a seamless steel tube of adequate diameter to counteract deflection and hold in bearings or cups attached to the endplates.

Finish

Comes galvanised with non-galvanised parts prime painted as standard. Customers can choose to have a powder coating of almost any colour as an additional extra.

Operation

Shutters over smaller openings are typically powered by a 240-volt single phase tubular motor whereas larger shutters are operated using a 400-volt 3 phase geared motor. Adjustable limit switches are incorporated to stop the shutter at the end of each travel. Standard controls include open/close/stop buttons for geared motors and rocker switches on single phase tubular motors.

Operation/Controls Electric (Not all options are available on all size shutters)
  • Key switch
  • Radio/remote Control
  • Rocker switch
  • Timer closing
  • Loop and Radar operation
  • Smart phone
  • Swipe Card activation
Manual

Spring and lock operation (for smaller shutters)
Hand chain operation for larger shutters

Lath Design

A number of lath designs are available from 51mm flat lath for smaller openings to 76mm curved and 102mm flat laths for exposed and industrial locations. The laths can be perforated or punched to allow ventilation and/or provide visibility into the premises whilst maintaining the required security.

Finishes

Can be Polyester powder coated or plastisol coated in a range of standard RAL colours’ for an extra charge.

Operation Options
  • Manual - Lift by hand
  • Manual - Chain
  • Electric - Single Phase
  • Electric - 3 Phase
Please Note: our electrically operated shutters are available with wall mounted push buttons, key fobs and many other access devices Finishing Options:
  • Galvanised finish (Standard for steel)
  • Aluminium finish (Standard for aluminium)
  • Plastisol finish
  • All RAL powder coat options