Comment installer un lanterneau sur camping-car et van aménagé ? - Vanlife-Store

Installing a roof light on a motorhome, caravan, or converted van is an essential step to improve the brightness and ventilation of your mobile living space. Whether you choose a classic 40x40 roof light, a panoramic model, or a roof light with a 12V fan, the installation remains accessible to everyone with a little method and the right tools.

This advanced guide will walk you through the steps to successfully complete your installation.

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Our Vanlife layout experts are here for you! Whether you have a question about our products or are looking for advice on transforming your van into a true nomadic cocoon, contact us – we will be happy to guide you!

Why install a roof light?

Installing a roof light (also called a skylight or sometimes Skydome) on a motorhome or converted van has many advantages.

First of all, it provides valuable natural light inside the vehicle, making the living space more pleasant on a daily basis.

It also improves ventilation, which limits condensation and unpleasant odors, especially during cooking or on cool nights. So with a good roof light on good ventilation, no more humidity problems.

Some models of roof lights are equipped with a 12V fan, ensuring optimal airflow even when the vehicle is stationary. It is also advisable to choose roof lights with permanent ventilation that allow for continuous airflow, an essential prerequisite for approval for example.

In conclusion, adding a roof light enhances your vehicle while significantly improving comfort on board!

The different types of roof lights for motorhomes and vans

Depending on your needs and budget, you can choose the best roof light for your vehicle, whether it is a motorhome or a converted van:

Type of roof light Main advantages Examples of recommended products
40x40 Roof Light Standard, easy to install, compatible everywhere. Price starting from €119. May include a permanent ventilation of 100 cm² as well as an LED frame. Includes mosquito net and blackout 40x40 Style Roof Light , VanVent 400x400 Roof Light
50x70 Panoramic Roof Light Large opening, clear view, maximum brightness. Item specially designed for L2H2 converted vans and larger. Price starting from €269 for the version without permanent ventilation. 150 cm² for the version with permanent ventilation. Includes mosquito net and blackout 70x50 LED Panorama Roof Light
12V Fan Roof Light Active ventilation, ideal for kitchens and showers. Multiple ventilation speeds. Includes mosquito net. Starting from €149 40x40 Fan Roof Light



What equipment to use to install a roof light on a converted van?


If you are installing the roof light yourself, here is a list of the necessary equipment:

  • Roof light suitable for your vehicle (see selection above)
  • Drill and bits to drill the first hole before cutting the sheet metal
  • A jigsaw to cut the contours in the sheet metal
  • Sealant (type Sikaflex 552AT)
  • Masking tape and file
  • Screws provided with the roof light
  • Measuring tape, pencil, ruler to mark the template before cutting the sheet metal
  • Anti-rust paint for the cut edges


Installation steps for a 40x40 roof light (to be validated)

1. Choose the location

  • Prefer a flat and clear area of the roof.
  • Check for the absence of cables, reinforcements, or existing equipment.

2. Mark and cut

  • Precisely mark the opening to the size of the roof light (e.g., 40x40 cm).
  • Drill the corners and then cut with the jigsaw.
  • File and protect the edges with anti-rust paint.

3. Prepare the sealing

  • Apply a bead of sealant around the opening.
  • Place the roof light and screw it in without over-tightening to avoid deforming the frame.
  • On the curved roof, compensate with sealant to ensure waterproofing.

4. Interior finishes

  • Install the provided interior frame.
  • Check the proper functioning of the opening and the mosquito net/blackout.

5. Waterproofing test!

  • Important: Always generously water the roof light to check for leaks.

Tips to optimize ventilation (12V fan)

To optimize ventilation inside your motorhome or converted van, it is advisable to combine a classic roof light with a model equipped with a 12V fan.

This configuration is particularly effective for extracting hot air or cooking odors. Installing two roof lights, one at the front and the other at the back of the vehicle, also allows for a very efficient cross airflow, thus improving air circulation throughout the cabin.

Models equipped with a 12V fan are highly recommended for hot regions or for vans with enhanced insulation, as they ensure optimal ventilation even when the vehicle is stationary.

Selection of recommended roof lights


  • 40x40 Style Roof Light: the universal standard, easy to install, ideal for most vans and motorhomes.

  • 70x50 LED Panorama Roof Light: for a panoramic view and maximum brightness, perfect for large spaces.

  • 40x40 Fan Roof Light: integrates a 12V fan, perfect for the kitchen or bathroom.

  • VanVent 400x400 Roof Light: robustness and simplicity, excellent value for money.

Find these models on Vanlife Store (category Roof Lights) and discover other promotional accessories for the layout of your van or motorhome.

In conclusion

In summary, installing a roof light on your motorhome, van, or caravan is an accessible project that significantly improves comfort on board.

If you cannot install a 50x70 (which represents a real asset on a daily basis in your converted vehicle), prefer a 40x40 roof light for its versatility, or opt for a model with a 12V fan for active ventilation.

Carefully follow the steps for cutting, sealing, and fixing to ensure a durable and leak-free installation.

To go further, discover our complete guide on van layout and our other articles: Furnishing a van in France: Our tips for furnishing your Van

For any questions or personalized advice, contact our team of Vanlife Store layout experts!

Why install a roof light?

Installing a roof light (also called a skylight or sometimes Skydome) on a motorhome or converted van has many advantages.

Installing a roof light (also called a skylight or sometimes Skydome) on a motorhome or converted van has many advantages.

It also improves ventilation.

The different types of roof lights for motorhomes and vans

Depending on your needs and budget, you can choose the best roof light for your vehicle, whether it is a motorhome or a converted van: (See our comparison table above)

What equipment to use to install a roof light on a converted van?

  • Roof light suitable for your vehicle (see selection above)
  • Drill and bits to drill the first hole before cutting the sheet metal
  • A jigsaw to cut the contours in the sheet metal
  • Sealant (type Sikaflex 552AT)
  • Masking tape and file
  • Screws provided with the roof light
  • Measuring tape, pencil, ruler to mark the template before cutting the sheet metal
  • Anti-rust paint for the cut edges

Installation steps for a 40x40 roof light

1. Choose the location

2. Mark and cut

3. Prepare the sealing

4. Interior finishes

5. Waterproofing test!

Installing a roof light on a motorhome or converted van
Lanterneau

Vanlife Store supports you

Our Vanlife design experts are here for you! Whether you have a question about our products or you are looking for advice to transform your van into a true nomadic cocoon, write to us or call us – we will be happy to guide you.

See you soon on the road!

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