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Liber Bi-Folding Doors

The Liber Superthermic Insulated Bi-Folding Doors offer a solution for large openings, accommodating widths of up to 12 metres and heights of 6 metres. Designed with versatility in mind, these doors can open to one or both sides with various leaf configurations, making them ideal for diverse applications.

Key Benefits:

  • Enhanced Thermal Insulation: Utilising our Superthermic panel, these insulated bi-folding doors have a thermal insulation rating of 1.53 W/m².˚K. For superior performance, the ISOMAX panel offers 1.15 W/m².˚K.
  • High Wind Resistance: Built to withstand challenging weather conditions, the doors are rated to Class 4 wind resistance.
  • Space-Saving Design: The simplistic top rail and side-hinged system require only 150mm of headroom, opening to 90 or 180 degrees, allowing for large openings without the need for a bottom track.
  • Customisable: Available in eight standard colours, with an optional painted finish, the pre-coated steel skins can be customised to meet your specifications. Alternatively, aluminium panels are available upon request.
  • Integrated Wicket Door: The Liber door features a full-width wicket door that can be supplied with or without a threshold, providing added fire safety and security.
  • Burglary resistance: the Liber door is tested and certifiec for class RC3 or RC2 (with wicket door).

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liber bi-folding doors

Technical Specifications

  • Maximum width of 12000mm (12 metres) and maximum height of 6000mm (6 metres), subject to the application.
  • Available in manual or electric operation, with standard opening speeds of up to 200mm per second, depending on size, facilitated by a 240v single-phase drive.
  • Designed with emergency opening capabilities.
  • Manufactured from 55mm thick, high-density foam-filled twin-skin steel panels with a concealed hinge system, complying with EN12424 Class 4 wind load standards and other relevant safety regulations.
  • Designed with an integrated locking shoot bolt and optionally available automated doors equipped with safety edges and photocells.
  • CE marked.
  • Fully adjustable top track, leaves, hinges, and bottom seal for quick installation with sealing and no ground track.

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large opening industrial doors

DID Hangar Doors are suitable for the following:

Windows

Customisable windows can be incorporated into every Liber door leaf, tailored to specific dimensions.

Rubber

  • Constructed with a black EPDM frame featuring rounded corners (radius approx. 130mm).
  • Accommodates safety glass up to 10mm thick.

Aluminium with Thermal Break

  • Manufactured from aluminium profiles with 90° mitred corners.
  • Supports safety glazed glass up to 40mm thick and can be customised into any geometric shape.
  • Special low U-value glass available upon request for compliance with building control requirements.

Speak to our team about Liber Doors

bi-fold doors for large openings

Applications

These bi-folding hangar doors are suited for various industrial settings:

For more information about Liber doors and how they can enhance your hangar, contact us. We are highly experienced insulated bi-folding door suppliers, and our team is available to assist in the design, installation, and aftercare of your chosen hangar door system.

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superthermic insulated bi-folding doors

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