Center Ridge I-Beam Ridgelight

A dual pitched rooflight installed against each other on a steel beam* to form a ridge

*Steel beam is supplied by other vendors.

Suitable for:

  • Flat & pitched roof type
  • Large roof opening
  • Rooflight installation pitch 5° to 40°

Key benefits:

  • Ensures maximum daylight and thermal comfort
  • Adds spaciousness to the area below
  • Great design flexibility

Rooflight solution with Ridgelight 5˚ with beam, PS.Halle, PS.Speicher, Vintage Car Museum, Einbeck, Germany
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Tools and guides

Products details

  • In short
    The Center Ridge I-beam Ridgelight is comprised of two rows of wall mounted longlights installed against each other on a center steel beam (supplied by others) to form a ridge. Special ridge cap flashing is supplied to connect the two rows.

    The modular Center Ridge I-beam Ridgelight is the ideal solution for large roof openings, bringing daylight into galleries, circulation areas and small internal courts. The Ridgelights add to the look and feel of the room and create an illusion of a small glass roof.

    VELUX modular skylights are delivered with a 10-year guarantee on modules and flashings.

    VELUX skylight specialists offer support throughout design, specification and installation, including design of the sub-construction needed for installation. Please note that sub-constructions and center ridge I-beam are not included in the VELUX delivery.

    Learn more about sub-constructions

    Illustration of Ridgelight solution with beam

    Center Ridge I-Beams Ridgelight

  • Functions and sizes

    Kynar 500 – Baked Enamel

    Fixed skylight module

    1. Fixed skylight module 

    Motorized comfort venting skylight module

    2. Motorized comfort venting skylight module opens up to 410mm 

    VELUX modular skylights require the following minimum and maximum measurements:

    1. Module width: 675-1000 mm
    2. Module height: 600-3000 mm 



    See size possibilities for fixed, comfort and smoke venting modules.
    Go to Size grid

    Warning triangle

    Venting skylight modules have a recommended minimum installation height of 2.5 m above floor level (inside) and ground level (outside).
    In case of installation below that level, safety measures must be applied by the installer/user to prevent serious injury.

  • Details
    VELUX modular skylight system is a turnkey solution comprising prefabricated skylight modules with dedicated claddings, flashings and vapour barrier connection strip to allow for design of watertight rooflight and glass roof structures.

    Comfort ventilation is possible via an integrated chain actuator that can be controlled with VELUX INTEGRA® system or with your preferred building management system. Smoke ventilation can only be controlled with your preferred building management system.

    For optimal daylight and heat control consider internal roller blinds that can be pre-mounted from the factory.
    Pre-fabricated VELUX Modular Skylights

    Pre-fabricated modular skylights from VELUX come with perfectly matching cladding, flashing and roller blinds. 

  • Glazing
    Get CAD/BIM objects for all major software platforms and find the right specification, product details and material information.
    Glazing units for VELUX modular skylights

    All glazing units come with step glass on the outer side to ensure water tightness (class E1200, EN 12208:2000).  

  • Performance

    The VELUX modular skylight profiles (sash and frame) are made of pultruded fiberglass (80%) and polyurethane composite (20%). The composite material provides high insulation performance and thermal stability as well as excellent profile stiffness and bending strength.  

    Due to the concept of prefabrication, we are able to test our products extensively against all thinkable hazards and stressful events. Tests are performed in controlled environments in accordance with harmonized standards for both Windows and doors and for Smoke and Heat control systems.
    Pre-fabricated VELUX modular skylights come with low energy glazing units to achieve low overall U-value

    In combination with low energy glazing units, the modular skyligths are able to achieve one of the lowest overall U-values for frame and glazing assembly in the skylight market (Uw values down to 0.86 W(m2/K)).  

  • Additional solutions

    Create a unique skylight solution

    By adapting the interior lining, modular Center Ridge I-beam Ridgelight can be used in non-square designs, e.g. obtuse angles, acute angles or ovals. By using adapted linings, the modular skylights can meet the demands of modern architecture featuring irregular or curved shapes.
    Ridgelight illustration with shaped, oval lining

    Shaped solution with oval lining