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.

Installation Process

Faster and smoother installation saves time and resources

Our prefabricated modules enable fast and easy installation in all weather conditions. The packaging system saves time on site and seals the building quickly and safely.
Within minutes, you can mount an entire module thanks to the unique bracket system with a simple clamp. Cladding and flashing are part of the prefabricated components, built to fit.


Placing VELUX Modular Skylights modules
Place the modules in the correct spot, adjust later if necessary.


Easy mounting of skylights
Fix the module fast and easily by means of brackets with clamps.


Installer clicking on cladding on a VELUX modular skylight
Click on the prefabricated cladding and flashings.

Year-round installation in all kinds of weather

Modular skylights can be installed in all kinds of weather. The quick installation process quickly seals the glass roof and creates a more comfortable indoor working environment.
Prefabrication eliminates the need for silicone jointing, which saves time and enables year-round installation.

Installation of modular skylights in the winter

Easy installation – every time

Jørgen Wulff

Experienced installer, Tømrerfirmaet John Wulff A/S,

Everything fits, if it doesn’t you have mounted it wrong. You just click on the cladding and flashing, there is no need for screws. This means that we can close the roof quickly so that everybody can get on with the indoor works.

Get a quick introduction to the installation process at different construction sites.

Watch the video to learn more about the installation process from an experienced installer of VELUX modular skylights