Ridgelight 25-40°

A dual pitched rooflight for installation on a flat roof or at a roof apex.

Suitable for:

  • Flat roof and at the top of a sloped roof
  • Flat roofing material
  • Opening width in roof min./max 1.1-4.5 m (for venting modules 1.4-4.5 m)
  • Rooflight installation pitch 25-40° 

Key benefits:

  • Ensures maximum daylight and thermal comfort
  • Adds spaciousness to the area below
  • Totally self-supporting solution
Rooflight solution with Ridgelight 25-40˚ modules, De Assenburg Shopping Mall, Bemmel, The Netherlands
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Tools and guides

Products details

  • In short

    Ridgelight 25-40° is a classic rooflight solution, where two rows of modular skylights are connected at the ridge. The dual pitched Ridgelight solution is ideal for buildings with large roof openings.

    Ridgelight 25-40° with vented skylight modules on both sides is an optimal solution for buildings that require day or night cooling.

    The Ridgelights can be supplied with different types of glazing on each side to control heat and glare according to the orientation of the building.

    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 are not included in the VELUX delivery.

    Learn more about sub-constructions

    Illustration of a Ridgelight solution

    Ridgelight solution in 25-40°

     

  • 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 

    Motorized smoke venting skylight module opens up to 700mm in less than 60 seconds

    3. Motorized smoke venting skylight module opens up to 700mm in less than 60 seconds 

    VELUX modular skylights require the following minimum and maximum measurements:

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

     

    Sizes

    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 rooflight solution to match your design

    By adapting the interior lining, modular Ridgelights 25-40° can be used in non-square designs, e.g. obtuse angles, acute angles or ovals. By using adapted linings, the modular skylights meet the demands of modern architecture featuring irregular or curved shapes.  
    Illustration of a Ridgelight solution with shaped, oval lining.

    Shaped solution with oval lining.

    Create an asymmetrical solution

    Modules of different heights can be combined to form an asymmetrical Ridgelight solution that bridges roof sections of different height and slope. Using glazing with different characteristics on each side of the Ridgelight help maximize daylight and minimize heat intake.
    Illustration of an asymmetrical Ridgelight solution for roof sections of different heights.

    Asymmetrical Ridgelight for roof sections of different heights

     

See case studies with Ridgelight solutions