Easy installation is possible by simply screwing the adapter frame onto an existing upstand with raised roof waterproofing, without having to raise the roofing any further. A fixed or opening Skylux flat roof window or hybrid dome can then be easily clipped or mounted onto it. The stand-alone electric interior screen can also be mounted within the daylight opening of the adapter frame.

Installation video

For renovation with existing upstand preserved

Upgrade your daylight without major construction work – Discover iWindow for renovation while keeping your existing upstand. Enjoy improved insulation, maximum natural light and a sleek design. Contact us today and give your home a modern look!

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Discover the many advantages of the adapter frame

The Skylux adapter frame allows you to quickly and properly install a dome or flat roof window onto an existing upstand. Discover the convenience and find all technical details and installation instructions in the technical file and mounting manual. A simple solution for hassle-free renovation.

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

Upgrade your old dome to a flat roof window

Optimise your home or renovation project with a modern flat roof window. Replace your old dome and enjoy more natural light, better insulation and a sleek, contemporary design. Experience greater comfort, an energy-efficient solution and a stylish upgrade to your living space.

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Kenmerk Skylux Renovatiekader
Toepassing Gedeeltelijke renovatie van lichtkoepels en platdakramen op bestaande opstand
Compatibiliteit Geschikt voor Skylux iWindow2, iWindow3, iDome en lichtkoepels
Materiaal Slagvast wit PVC met geïntegreerde EPS-isolatie
Isolatiewaarde kader EN 10077-2:2012: Ue-waarde* 0,78 W/m².K (isolatie EPS apart, met λ = 0,035 W/m².K)
Montage Vastschroeven op bestaande afgewerkte opstand, zonder bijkomende dakbedekking
Bekijk de montagehandleiding
Afwerking binnenzijde Met coverprofielen of aftimmergroef (voor gipskartonplaten of kabeldoorvoer)
Geschikt voor Houten, polyester of andere opstanden, met of zonder waterneus
Opstandhoogte Minimaal 150 mm
Technische documenten Bekijk het technisch dossier
Available sizes of the adapter frame
Technical specifications
Installation of the adapter frame

Thinking of replacing your old dome? Discover how easy it is to upgrade your flat roof without major construction work. Thanks to the adapter frame, you can quickly install a new dome or flat roof window, with a sleek finish and optimal insulation. Watch our installation video and see how it can transform your roof renovation.

Available sizes

Upgrade your old dome to a flat roof window



Is your old dome ready for replacement? Discover our wide range of flat roof windows. Not only will you enjoy a sleek, modern design, but also more natural light and improved sound and thermal insulation. Thanks to the adapter frame, upgrading to a flat roof window is quick and hassle-free.

Advantages of a flat roof window

In addition to a sleek design, a flat roof window offers many advantages: more natural light, better insulation, reduced noise and a high-quality finish. Upgrade your roof and enjoy extra comfort and style every day. Thanks to the adapter frame, the upgrade can be completed in just one day.

Skylux iWindow (Premium)

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, flush design with outstanding performance.

Skylux Vitria (Budget)

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

Flat roof window - Glass type Ug-value (W/m²K)
Insulation value
LT-value (%)
Light transmission
g-value (%)
Solar energy transmission
Rw-value (dB)
Sound insulation
Skylux iWindow2 DW** Clear HR ++ 1.00 W/m²K 75 % 52 % 39 dB
Skylux iWindow2 DW** Opal HR ++ 1.00 W/m²K 72 % 50 % 39 dB
Skylux iWindow2 DW** Solar control HR ++ 1.00 W/m²K 53 % 40 % 39 dB
Skylux iWindow3 3W** Clear HR +++ 0.50 W/m²K 63 % 42 % 41 dB
Skylux iWindow3 3W** Opal HR +++ 0.50 W/m²K 61 % 41 % 41 dB
Skylux iWindow3 3W** Solar control HR +++ 0.50 W/m²K 46 % 33 % 41 dB
Skylux Vitria DW** Clear HR ++ 1.10 W/m²K 72 % 51 % 36 dB