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.

The modules

Daylight through the roof as single units or entire bands

VELUX Modular Rooflights
Modular Rooflights are an elegant solution for flat roofs, providing direct access to daylight. Due to the glass-top construction the light incidence is maximised, meaning that the light area is equal to the hole in the roof.
Modular Rooflights consist of three variants: Monolight, Linearlight and Circularlight.

The bespoke solution consists of either fixed modules, vented modules or a combination of both. The advanced connector system and drainage gutter ensure a watertight and airtight connection between the modules. A minimised beam ensures a beautiful connection on the inside.

Interactive Product Samples

Our interactive product cut samples is a fully rendered and interactive 3D model that allows you to examine the shape and design of the Modular Rooflights in much greater detail than possible through photography alone.

Our model allows you to view the product from every direction and zoom in and out to view it up close.

Try it below.


Monolight module construction

1. Aluminium frame (height varies depending on glazing unit)
2. Insulating Glass Unit (IGU)
3. Silk screen print
4. Double gaskets


5. Upstand
6. Lining profile
7. Pre-wiring for roller blind


Linearlight module construction

1. Aluminium frame (height vary depending on glazing unit)
2. Insulating Glass Unit (IGU)
3. Silk screen print
4. Double gaskets
5. Upstand
6. Lining profile

7. Pre-wiring for roller blinds
8. Minimized beam
9. Drainage gutter
10. Fixed module
11. Venting module


Find out more

Contact our team for a complete demonstration of how Modular Rooflights could benefit your next project.

Modularity in every single product

All modules are produced offsite at our factory, meaning every single component is rigorously tested and integrated in a controlled environment. Each component is also of the highest premium quality and is built to stand the test of time.
All prefabricated Monolight and Linearlight roof windows are CE marked in accordance with EN 14351-1. Except for Circularlight where no upstand is included. Modular Rooflights has a reference service life of 30 years in accordance with EN 17213.


Key Benefits

From design to installation, our prefabricated Modular Rooflights offer several benefits.

  • Modular Rooflights are made-to-measure modules and can be produced in any dimension and upstand height, within the design limits, and perfectly to match the building.
  • Aesthetic design with optimal daylight influx - no visual difference between fixed and venting modules in closed position
  • Comfort venting modules allow fresh air and provide indoor comfort
  • Burglary resistance is an option for certified security
  • A walk-on version for residential use is available with optional anti-slip coating
  • Circularlight offers additional possibilities for aesthetic building design
  • Roller blinds are available for Monolight and Linearlight modules and can be pre-wired and pre-mounted.
  • CAD/BIM tools enable fast and intuitive design of rooflight with upstand in your drawing programme
  • Option to include single unit rooflights for specific areas of a building, or rows of connected rooflights for designing wide, uninterrupted daylight sources
  • Off-site production ensures consistent, high-quality and durable rooflights
  • Prefabricated top unit and built-in upstand supports a predictable and easy installation giving a fast closure of the building envelope

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