Xtralite and Vitral are now a part of VELUX Commercial, and we are delighted to welcome you to our new website. Here, you will find our complete portfolio of daylight solutions and services for industrial, commercial and public buildings.

Circularlight (formerly Vitral SkyVision)

An elegant, round rooflight for flat roofs that provides natural light and visual interest.

Suitable for:

  • Flat and sloped roofs from 0° to 15°
  • Recommended minimal installation pitch of 5°
  • Flat roofing material
  • Opening diameter 900mm to 1350mm

Key benefits:

  • Maximum daylight through the roof; frame not visible from underneath
  • Round shape provides unique and stylish appearance
  • Prefabricated top unit and top plate supplied for easy installation on builders kerb
  • Prefabricated top unit
  • Bespoke sizes - ideal for refurbishment projects
VELUX Modular Rooflight Circularlight
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Products details

  • In short

    For buildings with an extraordinary architectural style, Circularlight can be installed to provide natural light and visual interest. The elegant round shape can serve as a single focal point, or multiple units can be combined to create an array that looks great both inside and out.

    Circularlight is a non-venting single-unit rooflight that comprises a double-glazed top unit and a top plate that can be mounted on a builders kerb.

    VELUX Circularlight rooflights are supported by a 10-year guarantee. 

    VELUX Commercial specialists can offer support throughout design, specification and installation.

    VELUX Modular Rooflight Circularlight

    VELUX Modular Rooflight Circularlight

    Section of Circlularlight

    Section of Circlularlight

     Circularlight interior view

    Circularlight interior view

  • Details
    VELUX Circularlight rooflights are produced off-site at our factory. They consist of a glass top unit and a wooden top plate with gaskets. The products are available as fixed modules only and are supplied without upstands, so they should be installed on builders kerb.
    Modular rooflight circularlight module construction

     Circularlight module construction

    1. Aluminium frame - Welded and powder coated aluminium frame with the standard colour RAL 7043, gloss 30
    2. Low-E double glazing
    3. Silk screen print - The silk screen print gives a nice finish, as well as UV protection for the gaskets and underlying construction
    4. Gaskets - A top plate with gaskets provides watertight and airtight construction
    5. Upstand/sub-construction - Not provided by VELUX Commercial
  • Functions and sizes

    Circularlight rooflights are made to measure and can be configured, manufactured and delivered in bespoke sizes in a limited size range.

  • Glazing
    VELUX Modular Rooflight Circularlight low-energy double glazing

    Circularlight low-energy double glazing

    VELUX Circularlightcan be designed with double- or triple glazing units with the following features:

    • Insulated glazing with argon filling (Ug values down to 1.1 W/m²K)
    • Toughened outer glass
    • Laminated inner safety glass
    • Warm edge spacer (protects insulation over time and minimises the risk of condensation at pane edges)
    • The glazing unit is glued into the aluminium frame with a UV-resistant silicone
    • The glazing unit has a 115mm black silk print along the edge of the rooflight to prevent thermal breakage