iWindow Flat Roof Window - Flat glass for every flat roof
Flat glass that blends seamlessly into your architecture. No distracting edges, no visible screws. Only the pure essence of daylight, framed by award-winning design. This is not just any window. This is the iWindow.
Dimensions
Always the right size. For every roof.
No custom work needed, yet the perfect fit. Choose from no fewer than 86 standard sizes, from compact formats to impressive glass surfaces up to 100 x 300 cm. Available directly from stock, installation-ready within 5 working days.
Glass types
Your light. Your choice.
Decide the atmosphere and comfort in your home yourself. Personalise the glazing of your iWindow flat roof window:
- Clear: 100% transparent. For maximum daylight and an unobstructed view.
- Opal (Frosted glass): Soft privacy. Prevents unwanted views in and provides diffused, even light.
- Solar control: Always cool. Keeps out the summer heat effectively without blocking natural daylight.
Performance
Insulates like the best. Even in silence.
A good flat roof window keeps the cold out and the warmth in. Choose standard HR++ double glazing (U-value 1.0) for excellent thermal performance in any living space. Looking for passive building or complete silence during rain? Then choose the iWindow flat roof window with HR+++ triple glazing (U-value 0.5) and enjoy extreme insulation and maximum acoustic attenuation.
Ventilation
Breathe in. With your voice or a tap.
Choose the openable iWindow flat roof window for perfect ventilation and fresh air. The invisibly integrated motors are effortlessly controlled via your smartphone, a remote control or completely wirelessly on solar power (Solar). Thanks to built-in Matter integration, this smart roof window works directly and seamlessly with your existing Smart Home, such as Apple Home and Google Home. Simply say:"Siri, open the roof window." Choose 230V operation or go fully wireless with the Solar motor. No cables, purely solar-powered.
Plug & Play
Less work. Guaranteed quality.
No hassle on the roof, just immediate results. Choosing an electrically openable iWindow flat roof window including sunblind or insect screen? Then we assemble and test the complete system for you in our Belgian factory. You receive one seamlessly finished whole. Install it, plug it in, done.
Discover all models
One design. Six smart solutions. Whether you are looking for maximum light, fresh air or total safety, there is always a model that perfectly suits your project.
From our own stock.
Available within 5 working days. Ready to install.
More than just transparent.
Every project calls for specific daylight. Personalise your iWindow flat roof window with the perfect glass finish. Choose diffuse opal glass when privacy is crucial, such as in a bathroom. Or protect your home against overheating on hot summer days with our innovative solar control glass. Whatever finish you choose, the design remains uncompromisingly sleek.
Open your iWindow completely wirelessly on solar power.
The openable iWindow flat roof window works in two ways: connected to your home network on 230V, or completely autonomously via the integrated Solar motor powered by solar energy. No cabling, no electrician, no hassle. The Solar motor charges itself via the built-in solar panel and opens and closes the window quietly and reliably, even on cloudy days. Ideal for renovations, annexes or places where a power connection is not obvious.
New light. No demolition work.
Replacing your old, weathered skylight? With the smart Skylux adapter frame, you can install a brand-new iWindow on your existing roof curb in no time. No damaged roofing, no extra costs, 100% watertight.
Essentials for your iWindow
Enjoy daylight on your terms. Discover our custom-made essentials: from whisper-quiet sunblinds that keep the heat out, to smart control with your smartphone. Refine your iWindow experience down to the smallest detail.
Technical specifications iWindow2 vs iWindow3
We do not just promise comfort, we prove it. View the exact technical properties and configurations of the iWindow2 and iWindow3.
iWindow2
HR++ double glazing
iWindow3
HR+++ triple glazing
Vitria
HR++ double glazing
Insulation value (Ug value)
1.0 W/m²K
Insulation value (Ug value)
0.5 W/m²K
Insulation value (Ug value)
1.1 W/m²K
Material
Aluminium and PVC
Material
Aluminium and PVC
Material
White PVC frame
Options
Sunblind, blackout blind, LED lighting
Options
Sunblind, blackout blind, LED lighting
Options
Sunblind and blackout blind to order separately
Opening system
Electric (230V or Solar)
Opening system
Electric (230V or Solar)
Opening system
Manual and electric
Extra benefits
Sleek finish, superior insulation, larger sizes
Extra benefits
Sleek finish, superior insulation, larger dimensions, higher sound insulation
Extra benefits
Best price-quality ratio, easy installation
Light transmission (LT value)
- Glass type: Clear / Opal / Solar control
- Light transmission: 75% / 72% / 53%
Light transmission (LT value)
- Glass type: Clear / Opal / Solar control
- Light transmission: 63% / 61% / 46%
Light transmission (LT value)
- Glass type: Clear
- Light transmission: 77%
Solar energy transmission (g-value)
- Glass type: Clear / Opal / Solar control
- Solar energy: 52% / 50% / 40%
Solar energy transmission (g-value)
- Glass type: Clear / Opal / Solar control
- Solar energy: 42% / 41% / 33%
Solar energy transmission (g-value)
- Glass type: Clear
- Solar energy: 59%
Acoustic value (Rw-value)
39 dB
Acoustic value (Rw-value)
41 dB
Acoustic value (Rw-value)
39 dB
Specifications and instructions.
Here you will find all the essential documentation required for the design phase and correct installation.
Frequently asked questions
Can I replace my old skylight with an iWindow flat roof window?
Absolutely, and without major demolition work on your roof. With the smart Skylux adapter frame we quickly install a brand-new iWindow (fixed) over your existing curb.
Would you specifically like to replace an old fixed skylight with an openable glass flat roof window? Then choose the iWindow Flex 2.0. Here, the motor is innovatively integrated into the frame itself, allowing the window to open upward effortlessly for ventilation. In all cases, your roof covering remains 100% intact.
Does rainwater or dirt remain on the flat glass?
No. Every flat roof in the Netherlands and Belgium is standardly provided with a slight pitch for drainage, and the iWindow follows this slope perfectly. As a result, rain and dirt naturally slide off the sleek glass surface.
Does your roof still have insufficient slope? No problem. The iWindow can easily be installed with a minimum pitch of 5 degrees, guaranteeing that water never remains on the glass.
Does the iWindow insulate well against cold, summer heat and the sound of rain?
Exceptionally well. The iWindow is fitted as standard with HR++ double glazing (U-value 1.0) or HR+++ triple glazing (U-value 0.5) for outstanding thermal insulation. The heavy safety glass also reduces the tapping sound of rain or hail to an absolute minimum.
For spaces with a lot of direct sunlight (such as south-facing rooms), we recommend our Solar control glazing to elegantly prevent overheating in summer.
Can I operate the iWindow electrically or integrate it into my Smart Home?
Yes. If you choose an openable iWindow, the whisper-quiet motors (230V or Solar solar-powered) are fully concealed within the sleek frame. The Solar motor works completely wirelessly and charges via a built-in solar panel. This allows you to install the openable iWindow without an electrical connection, perfect for renovations or hard-to-reach locations.
Thanks to the built-in Matter technology you can seamlessly connect the window and optional electric accessories to Apple HomeKit, Google Home or Amazon Alexa. Control your indoor climate with a single tap on your smartphone or automate ventilation with your voice.
Do I need to order accessories such as sunblinds or blackout screens straight away?
That is entirely up to you, depending on your model. Do you choose an openable iWindow including fixed exterior sunblind, blackout blind or insect screen? Skylux then assembles this for you at the factory into one fully pre-assembled set. No puzzle work on the roof, just a flawless plug & play installation straight away.
Do you have a fixed iWindow or would you rather postpone the investment in accessories for now? No problem at all. Our slim interior screens and sunblinds are designed so that you can add them to your existing flat roof window flawlessly and seamlessly at any time you want – even years later.