Your bridge between the old curb and new daylight

The adapter frame mounts directly onto your existing curb and acts as an intermediate piece: at the bottom it connects to your current structure, while at the top your new skylight or flat roof window simply clicks into place. The roof covering remains completely intact. No renovation, no mess, just new daylight.

Load video: Skylux renovatiekader PVC - compatibel met iWindow, iDome en lichtkoepels

Preserve

Your curb stays intact - your daylight is renewed

The adapter frame fits virtually any existing curb: wood, polyester, with or without drip edge, as long as the curb height is at least 150 mm. No need to modify the roof covering. No need to disturb the structure. Simply choose new daylight and we’ll take care of the rest.

Compatible with curbs from any brand.

View the adapter frames

Installation

No cutting, no demolition work. Just install

Installation is completed in one day. Without mess. The adapter frame is screwed directly onto the existing curb. The roof covering remains completely intact and watertight. Renovating your roof has never been this fast.

See how it works

Strak iWindow platdakraam in moderne woning met overvloedig daglicht, ideale oplossing voor nieuwbouw en renovatie dankzij topisolatie en minimalistisch design.

Enjoy

From skylight to flat roof window in one day

A modern flat roof window brings more daylight, better thermal insulation and sound reduction, and a sleeker, flatter roofline. Thanks to the adapter frame, there’s no need for renovation work. Your home looks different today already.

Compare flat roof windows

Installed in 3 steps without cutting or demolition work

Step 1 - Remove the old skylight

Remove the existing skylight and clean the curb thoroughly. No demolition work, no major mess.

Step 2 - Install the adapter frame

Screw the adapter frame directly onto the existing curb. The roof covering remains completely intact.

Step 3 - Click in and enjoy new daylight

Attach your new skylight or flat roof window. Optional: add a sunblind right away.

Load video:

This is how easily you install the adapter frame

Considering replacing your old skylight? Discover how easy the installation is. Thanks to the adapter frame, you can install a new skylight or flat roof window in one day, with a sleek result, optimal insulation, and without demolition work.

View the installation video
Skylux renovatiekader met iWindow platdakraam. Complete renovatieset voor 100×100 cm

For illustration: a complete set for daylight size 100×100 cm. The composition is fully customizable to your dimensions and needs.

All sizes and prices
Resultaat na renovatie: nieuw Skylux platdakraam via renovatiekader
Situatie voor renovatie: oude lichtkoepel op bestaande opstand

Upgrade your old skylight to a flat roof window

Is your old skylight due for replacement? Discover our wide range of flat roof windows. You benefit not only from a sleek, modern design, but also from more daylight and better sound and thermal insulation. Thanks to the adapter frame, the transition is also smooth and without cutting or demolition work.

Skylux renovatiekader met iWindow platdakraam. Complete renovatieset voor 100×100 cm

Benefits of a flat roof window346

In addition to a sleeker design, a flat roof window offers many advantages: more natural light, better insulation, less noise and a finer finish. Upgrade your roof and enjoy extra comfort and appearance every day. Thanks to the adapter frame, the transition can even be completed in one day.

Skylux renovatiekader geplaatst op werf - werfklare oplossing voor lichtkoepel renovatie. Aannemer plaatst Skylux daktoegang op plat dak met grindafwerking - renovatiekader zonder breekwerk

Skylux iWindow (Premium)346

The Skylux iWindow series offers high-quality flat roof windows that excel in insulation, sound reduction and design. Within this series, there are two main variants: the iWindow2 and the iWindow3. Both models combine a sleek, flat design with outstanding performance.

Skylux Vitria vast platdakraam op plat dak. Budgetvriendelijke renovatieoptie

Skylux Vitria (Budget)31

If you want to renovate on a budget without compromising on quality, the Skylux Vitria is a smart choice. This flat roof window combines sleek design with solid insulation and easy installation. Ideal for those looking for an affordable and durable daylight solution.

Frequently asked questions about the adapter frame

When should I choose a Skylux adapter frame?

The adapter frame is the ideal solution for a partial renovation of your flat roof windows or skylights. It allows you to modernise your daylight element while keeping the existing curb. Choose this system when you want top insulation and a sleek design, without modifying the entire roof covering.

Is the frame suitable for my current curb?

The system is highly versatile and fits virtually any substrate, such as wood or polyester, with or without a drip edge. The only requirement is that the existing curb must be at least 150 mm high. The frame integrates seamlessly with our highest-performing windows: the iWindow2, iWindow3, iDome and all Skylux skylights.

How does installation work?

The installation has been developed for maximum efficiency. The adapter frame is screwed directly onto the existing, finished curb. The major advantage: no additional roof covering is needed to make the connection watertight. This saves considerable time and avoids unnecessary demolition work.

What are the insulation values of the system?

Skylux stands for uncompromising quality. The frame is made from impact-resistant white PVC and fitted with integrated EPS insulation (λ = 0,035 W/m².K). This results in an excellent insulation value (Ue value of 0,78 W/m².K), keeping heat loss to a minimum.

How is the frame finished on the inside?

On the inside, you benefit from perfect aesthetic integration. You can choose between a sleek finish with cover profiles or the use of a practical lining groove. This groove is ideal for a seamless connection with plasterboard or for discreetly concealing cables.

Which dimensions are available for the adapter frame?

The Skylux adapter frame is available in more than 110 standard sizes, aligned with the full range of Skylux skylights and flat roof windows we offer. Each size is also produced with a specific clearance, so the frame fits perfectly on your existing curb, regardless of the brand of your current dome. Can't find your size? Get in touch. We will look for the right solution together.

Can I install the adapter frame myself or do I need a professional?

The adapter frame has been developed for fast and simple installation, also for experienced DIYers. The steps are straightforward: remove the old dome, clean the curb, fix the frame and install the new flat roof window or skylight. Our installation instructions (available in NL, FR, EN and DE) guide you step by step. Do you have doubts or would you prefer worry-free installation? Use our point-of-sale finder to find an approved installer near you.