Home > Companies > Glazing Vision Ltd > GV VisionVent Rooflight

A range of hinged rooflights available in various configurations and sizes. The VisionVent is a thermally broken hinged flat roof vent which can be installed on a flat (minimum 3°) or pitched roof, or even incorporated into a Flushglaze rooflight for large areas of glazing where there is a requirement for ventilation. The product has been designed with a minimal amount of visible internal framework and concealment of the electrical operators within the frame, giving a 100% clear glass area. It is available in manual, chain actuated and electric versions which can also be integrated into larger modular systems. The Integrated versions are essentially identical to the solo equivalent, but are designed to be inset into Flushglaze framing as part of a modular rooflight. There are no visible kerb fixings through the use of the external clip on cover.


  • Concealed operating mechanism.
  • Dual colour Qualicoat approved powder coated finish.
  • Thermally broken framework.
  • Heat soak tested low e safety glass.
  • Maximum daylight due to minimum framework.
  • Rigid two point opening.
  • Simple installation.

Standard product features

Frame material:

Extruded thermally broken aluminium profiles, grade 6063 T6, with polyamide thermal break.


Combination of dual inner EPDM rubber bubble seals and outer EPDM rubber seal.


Electrically hinged VisionVent is part of Glazing Visions Secure and Secure+ range of Secured by Design rooflights tested to LPS2081 Issue 1:2015 and compliant with Building Regulations Approved Document Q – Security in Dwellings.


Product reference:

- Electric Rooflights:

  • Power supply: External 24 V, 14.6 A, 300 W mains powered supply.
  • Drive mechanism: Motor driven scissor linkage mechanism with encoder feedback.
  • Rooflight control: On board control pcb housed within IP rated enclosure.


Dependent on type, operation and integration; consult manufacturer's literature for more information.


- 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: 4 mm clear toughened heat soak tested.
  • Spacer: 12 mm black silicone sealed argon filled cavity.
  • Middle: 4 mm clear soft low E toughened heat soak tested.
  • Spacer: 12 mm black silicone sealed argon filled cavity.
  • Inner: 4 mm clear soft low E toughened heat soak tested.


  • Rain sensor.
  • Remote control.
  • BMS interface.
  • 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.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-25-99/410 Framed rooflights

NBS Specification

NBS Buliding logo
This product is associated with the following NBS clauses:

Product specification

An important note about specifying



Glazing Vision Ltd


+44 (0)1379 658300

Product reference

[GV VisionVent Solo Electric Rooflight]
[GV VisionVent Solo Chain Actuated Rooflight]
[GV VisionVent Solo Manual Rooflight]
[GV VisionVent Solo Electric Rooflight (integrated)]
[GV VisionVent Solo Chain Actuated Rooflight (integrated)]
[GV VisionVent Solo Manual Rooflight (integrated)]


[As drawing]
[As schedule]

Colour/ finish

Qualicoat approved polyester powder coated, RAL - Dual Colour RAL 7015 Grey Outer / RAL9010 White Inner as standard. Other colours are available to special order; consult manufacturer and insert requirements.


[ ______ ]


[Double glazed]
[Triple glazed]
Not available for manually operated VisionVent.


[BMS Integration]
For Electric only.
[Rain sensor]
For Electric only.
[Remote control]
For Electric only.
[Ritec glass coating]
For Electric only.

Manufacturer details

Glazing Vision Ltd ,
Sawmills Road,
Norfolk, IP22 4RG
Tel +44 (0)1379 658300
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NBS National BIM Library