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Three Wall Box Rooflight - Left Exit

Third party certifications:
  • BSI Kitemark

    Certificate type

  • QA Certificate

    Certificate type

Glazing Vision Ltd

Sliding box rooflight designed for access to roof space or terrace.

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+44 (0)1379 658300 www.glazingvision.co.uk

Sliding rooflight with one single sliding door retracting over fixed glazing available in either a free-standing box rooflight or a three wall mounted version. It is a good option for terraced access as it offers a physical structure and the fixed walls of glass provide a balustrade around the opening. It also allows the handrail to continue right up to the point of leaving the box and stepping onto the roof terrace. The box rooflight consists of two sections, one fixed section and one sliding section. The sliding section slides over the fixed section to create a 50% clear opening thus allowing the user to walk through and out of the rooflight. All the glass used is flush to allow water runoff and easy cleaning, whilst maintaining maximum security.

The thermally broken detail on the fixed frame and insulated flashings on the sliding frame almost eliminates direct contact between the warm internal frame and the exterior cold air, reducing heat loss and condensation forming. Carriage design includes large diameter wheels to give minimal rolling resistance on the anodized rails. Includes drainage on the lower track to reduce build up of debris within the framework.

All Glazing Vision sliding rooflights are low-noise in operation and have built in electronic solid-state controls with battery back-up, manual override, speed control and creep-speed sealing at end of travel as standard. Units are factory pre-assembled and tested, usually craned into position, fitted and commissioned within day. Manual override of the unit is via a 90° turn of an Allen key to engage/ disengage the motor from the drive mechanism and allow the product to be pushed open/ closed.

The rooflight is opened electrically, operated by a rocker switch positioned at the discretion of the client. It includes a ‘one touch’ facility, where the switch is pressed and then released leaving the rooflight to open automatically. The unit can be stopped by pressing close once or can be only part opened by keeping the switch pressed until the desired point is reached.

General information

As drawing

As schedule


Grey/white frame, clear glass


Approx 50% clear opening, suitable for regular access, one touch operation


Aluminium, glass




Manufacturer's warranty

Uniclass 2015
Framed rooflights (Pr_30_59_72_31)Primary
Specification data - Framed rooflights
Product Reference

GV Standard 3 Wall Box Rooflight

Wall abutted on three sides.

GV Standard Free Standing Box Rooflight


As drawing

As schedule

Colour/ Finish

Qualicoat approved polyester powder coated, RAL

RAL 7015 as standard. Other colours are available to special order; consult manufacturer and insert requirements.


Insert requirements; consult manufacturer's literature for more information.


Double glazed

Triple glazed



BMS Integration

Rain sensor

Rain sensor overrides

Insert requirements.

Remote control

Ritec glass coating

Solenoid bolt


Standard product features

Frame material:

Extruded thermally broken aluminium profiles, grade 6063 T6.

Power supply:

24 V battery operated, 240 V mains supply required for trickle charging batteries via control board.

Drive mechanism:

Rack and pinion.


Combination of rubber seals and brush strip.


Anti-lifting mechanism to prevent disengagement of drive mechanism via vertical movement of sliding frame.

Rooflight control:

OR Control Board and magnetic limit switches.

Product Options


- Double glazed:

  • Outer: 6 mm clear toughened heat soak tested.
  • Spacer: 20 mm black silicone sealed argon filled cavity.
  • Inner: 6 mm clear soft low E toughened heat soak tested.

- Triple glazed:

  • Outer: 6 mm clear toughened heat soak tested.
  • Spacer: 14 mm black silicone sealed argon filled cavity.
  • Middle: 4 mm clear soft low E toughened heat soak tested.
  • Spacer: 14 mm black silicone sealed argon filled cavity.
  • Inner: 4 mm clear soft low E toughened heat soak tested.


  • Rain sensor.
  • Rain sensor over-ride.
  • Remote control.
  • BMS interface.
  • Proximity sensors.
  • Thermostat control.

- Ritec Clearshield glass coating:

Gives a non-stick surface making the glass easier to clean and keep clean, stay clean for longer and resist staining and discoloration.

Digital objects
PlatformCompatibleVersionCertified to
IFC2X3 1 1.3
Revit 2016 2 2.0
IFC2X3 1 1.3
Download now from NBS National BIM Library
Third party certifications
  • ISO9001. : Compliant company
  • ISO14001 . : Compliant company
  • NARM : Members of NARM (National Association of Rooflight Manufacturers)
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