Northlight 25-90°

A rooflight series for sloped, shed or saw tooth roofs. 

Suitable for:

  • Sloped, shed or saw tooth roof
  • Flat roofing material
  • Opening width in roof min./max. 0.6-3.1 m (for venting modules 0.8-2.5 m)
  • Rooflight installation pitch 25-90° 

Key benefits:

  • Possibility of upright design
  • Prevents glare and lets in a soft light when facing North
  • Designed for installation directly in sloped roofs without adding a sub-construction 
Rooflight solution with Northlight 40-90˚ modules, Sågbäck Gymnasiet, Stockholm, Sweden
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Tools and guides

Products details

  • In short

    Northlights are rows of modules installed up to 90° in order to provide large amounts of glare-free daylight, ideal for spaces that require soft light for optimum indoor conditions, e.g. at schools, offices, museums and galleries.

    The Northlight solution does not require a sub-construction for installation and can be integrated into a sloped roof.

    The modular Northlights allow fast and easy closure of the roof to reduce costs and make room for the interior works.

    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. 

    Learn more about sub-constructions

    Illustration of Northlight solution

    Northlight solution

  • 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 



    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

    A dual pitched asymmetric Ridgelight with infill panels on one side can be used as a cost-competitive alternative for shed roofs covering large spaces such as warehouses and factories.

    Illustration of an asymmetric Ridgelight

    Asymmetric Ridgelight solution


See case studies with Northlight solutions