The motor is in the frame. The comfort is above it.

The iWindow Flex 2.0 is installed directly onto the existing curb. This allows you to renovate quickly and neatly, without demolition work. The 24V chain motor is integrated into the frame, underneath the flat roof window. As a result, the window opens smoothly and in a controlled way, without a visible motor or spindles. With super-insulating glazing, you bring daylight, ventilation and comfort indoors. Ready for the job site. Ready for your customer.

Skylux iWindow3 Flex 2.0 opengaande uitvoering met opaal glas 0700 x 1000 mm

Renovation

Renovate without demolition work.

The iWindow Flex fits seamlessly onto your existing curb. That means no demolition, no worries. Choose iWindow2 for everyday comfort, iWindow3 for maximum heat savings, or iDome.

View dimensions

Vergelijking Google Home app versus Apple HomeKit app voor bediening van Skylux platdakraam

Control

Fresh air. At your command.

One push of a button. The quiet 24V chain motor opens the window up to 25 cm. With DuoControl, you operate your flat roof window using the included remote control or via your smartphone. Fresh air, at your pace.

Configure your control system

iWindow Vast Platdakraam 90x90 cm - Skylux

Performance

Less heat loss. Less noise.

Choose iWindow2 for bright daylight and everyday comfort. Choose iWindow3 with triple-wall glass for maximum heat savings and a living space that stays quiet, even during heavy rain. You decide. We deliver the quality.

View glazing options

Skylux iWindow3 Flex 2.0 opengaande uitvoering met helder glas 1000 x 1000 mm

Ventilation

Automatic ventilation. Automatic closing.

The iWindow Flex 2.0 opens quietly up to 25 cm via the integrated 24V chain motor. Add a rain sensor and your window closes automatically when it rains. No more worries. Just fresh air, exactly when you want it.

Discover the accessories

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

Plug & Play

Ready in the factory. Ready on your roof.

The iWindow Flex 2.0 is fully assembled and tested in our Belgian factory. You receive a seamlessly finished unit, including your selected accessories. Install, connect, done. No hassle. With Skylux warranty.

Download installation manual

iWindow Flex 2.0 opengaand platdakraam voor renovatie 80x230 cm - Skylux

Smart control. Opens up to 25 cm.

Fresh air at the push of a button. The integrated 24V chain motor opens the window quietly up to 25 cm. Operate it via DuoControl, using the remote control or your smartphone. No hassle, pure convenience.

Configure your control system Technical data sheet

Discover all iWindow flat roof windows

The opening flat roof window for renovation. Available in multiple sizes and glazing options.

Platdakraam kopen voor nieuwbouw - Skylux iWindow
Opening version
Daktoegang kopen met iWindow platdakraam - Skylux
Rook- en warmteafvoersysteem kopen - Skylux trappenhalontroking

From our own stock.

iWindow Flex 2.0 opengaand platdakraam voor renovatie 85x85 cm - Skylux

Available within 5 working days. Ready to install.

iWindow Vast Platdakraam 90x90 cm - Skylux
iWindow Vast Platdakraam 90x90 cm - Skylux

Choose your ideal glazing.

Choose iWindow2 for everyday comfort and bright light. Choose iWindow3 for maximum insulation and a quiet living space. Or combine the Flex 2.0 with an iDome skylight. Your choice, your comfort.

View sizes and prices

Compare the glazing options for your Flex 2.0

Choose the glazing that suits your comfort and budget. Compare insulation, daylight and possible glass types side by side.

Order the Flex 2.0

iWindow Flex 2.0

HR++ double glazing

Skylux iDome Flex 2.0

HR++ safety glass + synthetic dome

Insulation value (Ug value)

1,0 W/m²K

Insulation value (Ug value)

1.0 W/m²K (glass) / 0.5 W/m²K (complete system)

Material

Aluminium and PVC

Material

PVC, aluminium and acrylic/polycarbonate

Opties

Sun protection, blackout, LED lighting

Options

Sun protection, blackout to be ordered separately

Opening system

Electric (230 V)

Opening system

Electric (230 V)

Additional benefits

Fits existing curbs (renovation), sleek look, motor included

Additional benefits

Fits existing curbs, extremely quiet in the rain, self-cleaning thanks to the dome shape

Light transmission (LT value)

Glass type: Clear
Light transmission: 75%

Light transmission (LT value)

Glass type: clear (including dome)
Light transmission: 64%

Solar energy transmittance (g value)

Glass type: Clear
Solar energy: 52%

Solar energy transmittance (g value)

Glass type: clear (including dome)
Solar energy: 43%

Acoustic insulation value (Rw value)

39 dB

Acoustic insulation value (Rw value)

41 dB

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 Renovation Frame, we can quickly install a brand-new fixed iWindow over your existing roof curb.

Do you specifically want to replace an old fixed dome with an opening glass flat roof window? Then choose the iWindow Flex 2.0. Its motor is innovatively integrated into the frame itself, allowing the window to be pushed up effortlessly for ventilation. In all cases, your roof covering remains 100% intact.

Will rainwater or dirt remain on the flat glass?

No. Every flat roof in the Netherlands and Belgium is typically built with a slight pitch for water drainage, and the iWindow follows this pitch perfectly. This allows rain and dirt to slide naturally 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 provide good insulation against cold, summer heat and rain noise?

Excellently. The iWindow comes 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 rooms with a lot of direct sunlight, such as south-facing spaces, 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 opening iWindow, the whisper-quiet motors, 230V or solar-powered Solar, are fully concealed within the sleek frame. The Solar motor works completely wirelessly and charges via an integrated solar panel. This allows you to install the opening iWindow without an electrical connection, perfect for renovations or hard-to-reach locations.

Thanks to 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 one tap on your smartphone or automate ventilation with your voice.

Do I need to order accessories such as sun protection or blackout screens immediately?

That is entirely up to you, depending on your model. Choose an opening iWindow including electric external sun protection, blackout or insect screen, and Skylux will assemble it for you in the factory as one fully pre-assembled set. No complicated work on the roof, just a flawless plug & play installation.

Do you have a fixed iWindow, or would you rather postpone your investment in accessories? No problem at all. Our slim interior screens and sun protection solutions are designed so you can add them flawlessly and seamlessly to your existing flat roof window at any time, even years later.