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 of Modular Skylights

Faster and smoother installation saves time and resources

Save time and money with our 100% prefabricated skylight modules that allows you to close the roof within days, regardless of the weather, and lets you to get on with the indoor work with speed and efficiency.

Modular Skylights - sub-constriction

Modular Skylights is designed to speed up your workflow


Transport of VELUX modular skylights

We offer a variety of logistic services to suit your delivery needs.

Craning and packaging

Craning and packaging of skylights

The modules are delivered on pallets, prepared for crane lift and clearly marked with letters, signifying the components’ order in the installation process.

On-site handling

Craftsman packs skylights on a roof

Clear instructions on the packaging and letters marking the installation sequence help plan the installation so that each component is available at the right time in the right place.


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 hole in the 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

Installation videos

See our installation videos guiding you through the process from start to end.

Longlight 5-30°


Wall-mounted Longlight 5-45°


Northlight 25-90°


Ridgelight 25-40°


Easy installation – every time

Jørgen Wulff

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 Modular Skylights