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Configure your iWINDOW3 Opening Flat Roof Window
- Made in Belgium
- Dimensions: 18 standard models
- Model: opening with upstand
- Roof: triple glazing 24mm 44.2
- Tint: clear, opal, heat-reducing
- Option: electric blind, sun shade
- Optimal insulation and brightness
- Simple assembly & ready to install
Summary
Lead time: 3 to 12 weeks* *Lead time varies depending on dimensions in stockand the options selected
Free
delivery*
Custom
Made
Warranty
10 years*
-
Free Delivery*
-
Garantie
10 years*
Bring the sky into your living room!
Would you like to enjoy natural light in your home while maintaining optimal thermal and acoustic insulation? Choose the iWINDOW3 Opening Flat Roof Window and benefit from up to 40% more natural light compared to an ordinary rooflight!
Combining aesthetics and modernity, its compact, high-quality PVC frame, combined with the super-insulating HR+++ safety triple glazing, guarantees excellent insulating performance (Ug of 0.5 W/m²K) as well as good acoustic sound insulation (Rw 41 dB).
Its clean-lined and modern design adds real value to your home, while providing you with unlimited, free, and well-being-enhancing natural energy!
This flat roof window is perfectly suited for flat roofs. It can be installed on a slope ranging from 0° to 25°. To avoid dirt build-up, a minimum angle of 5° is recommended.

Finishes: exterior/interior
White Exterior
White Interior24mm 44.2 triple glazing
Clear Glass
Opal Glass
Solar GlassOptional accessories
Electric BlindInsect Screen
Electric BlindSun Shade
Electric BlindBlackout




Custom-designed profiles
- 44.2 laminated safety triple glazing reinforced with Argon gas
- White powder-coated anodised aluminium frame
- Black ceramic glass border for perfect glass integration
- 55mm high insulating PVC frame
- Insulating PVC kerb with a thickness and height of 95mm x 200mm, without a bulge for maximum daylight opening
- Lower fixing ledge
- 2cm groove for a seamless join with the ceiling finish
- Hinge for fixing the frame and the kerb

A super-insulating triple glazing
The iWINDOW3 Opening Flat Roof Window offers excellent insulation thanks to its compact and insulating PVC frame, combined with the super-insulating safety glazing. For added safety, the inner glass is laminated glass and the outer glazing is toughened for greater resistance.
Available in 3 tints, this window model gives you the ability to determine the desired light intensity according to your needs: the clear tint for absolute transparency and maximum light input, the opal tint to meet a need for privacy while reducing the sensation of glare in your room, and the heat-protection tint to filter more of the sun's rays and overcome greater heat.

Comparison of tints for 24mm 44.2 Triple Glazing
| Triple Glazing DP Clear HR +++ | Triple Glazing DP Opal HR +++ | Triple Glazing DP Solar Protection HR +++ | |
|---|---|---|---|
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|
| Glass tint | Clear Tint | Opal Tint | Heat-Protection Tint |
| Glass thickness | 24mm | 24mm | 24mm |
| Glass weight | 30kg/m² | 30kg/m² | 30kg/m² |
| Light transmission TL | 63% | 61% | 46% |
| Insulation value U | 0.5 W/m² K | 0.5 W/m² K | 0.5 W/m² K |
| Solar factor g | 58% | 59% | 67% |
| Acoustic sound insulation Rw | 41 dB | 41 dB | 41 dB |
A kerb designed for maximum brightness
Compatible with all types of roofing membranes, the iWINDOW3 Opening Flat Roof Window is equipped with a 20/00 EP Kerb in insulating PVC, stabilised by a specific anti-UV treatment resistant to discolouration. Furthermore, its polymer composition combines lightness and strength, greatly facilitating its handling and installation.

With its straight shape, the 20/00 EP Kerb has the advantage of offering maximum brightness. Indeed, unlike an angled kerb, the incoming light surface area — for example, for a roof window measuring 100 x 100cm — suffers no loss, with an actual value of 1 m².
This way, for the same dimensions, you benefit from maximum light input — at the same price!
Equipped with an anodised Raw Aluminium Flashing, it ensures proper water drainage to prevent any stagnation on the roof. For large-sized windows, the flashing is assembled and fixed using stainless steel self-tapping screws with a Nyplas collar, making it easier to handle. It also features four ASA synthetic corner pieces that reinforce the whole assembly.

Product +
- Sleek and modern design that suits all types of architecture
- High-insulation safety triple glazing (Ug = 0.5 W/m²K)
- Maximum light surface area corresponding to the measurement of your daylight opening
- Good acoustic sound insulation of 41dB
- 55mm thick decorative frame
- Available in fixed or opening model
- Low maintenance with installation from 5°

Adjust the ventilation with a simple gesture
The PVC Costière 20/00 EP is equipped with an integrated 24V motor with a single or double actuator depending on the weight of your iWINDOW model. The motorisation is provided by an integrated control unit and a remote control automatically connected to the complete set.
The control unit features open contacts in anticipation of adding a home automation system, or should you wish to connect fixed push buttons.
Its propulsive force reaches 1500 N at a speed of 7mm/s, giving the iWINDOW Roof Window an opening and closing time of just 15 seconds.
DuoControl mode
Control your iWINDOW Flat Roof Window and electric blinds with ease using the included remote control or directly from your smartphone. Discover Matter technology, which ensures seamless integration between your smart devices. With Matter, control your window and its accessories easily via your favourite apps such as Google Home, Apple HomeKit or Samsung SmartThings.
Connecting your device is quick and intuitive, completed in just a few steps. See the guide>
Your optional iWINDOW accessories
Pre-mounted Electric Blinds
To fully enjoy natural light without raising the temperature in your room, the Electrically Operated Blind is an ideal ally. Equipped with a 230 V mains power supply, this electric blind can be controlled using the remote control of your iWINDOW Flat Roof Window, or from your Smartphone. There is no need to wire this device as it features a wireless Bluetooth module. Installation is done in the blink of an eye, and all you need is a 230V mains power supply at the planned location of your flat roof window.
The Electrically Operated Blind comes in 3 versions: the Insect Screen Version to create a shaded area while maintaining a clear view of the outside, the Sun Shade Version to filter UV rays while enjoying soft light, and the Blackout Version to block all light sources from entering while keeping you protected from prying eyes.

Electric Insect Screen Blind
Electric Sun Shade Blind
Electric Blackout BlindManual Blinds
The Manual Sun Shade and Blackout Blinds stand out for their ease of use. Made from an off-white fabric, they have a light transmission of 20% and 0.5% respectively, providing partial or complete protection from UV rays while reflecting heat.
When unfolded, the blind perfectly conceals the taut cables and their drop point, letting no light through that could show on the floor of your room. Its opening system operates via a removable pole 1.5m in length.
Our manual blind models are available on simple request via our Online Quote Form.

The External Sun Shade
Made from a lacquered aluminium frame in Dark Grey (RAL 7021), the External Sun Shade installs directly onto the frame of your flat roof window from your rooftop. Thanks to its clip-fixing system, installation is simple and quick. The key advantage is that it offers up to 8x greater solar protection compared to an interior sun shade.
Held in place by a rubber profile, the blind is made of fibreglass with a thickness of 50mm and a PVC coating for optimal weather resistance. In addition, these characteristics limit contact noise encountered in the event of rain or hail. It can be installed at temperatures ranging from -20 to 70°. With its 6% light transmission, this sun blind acts as a highly effective heat shield.

Pre-mounted LED Lighting
The day is drawing to a close but you want to maintain maximum brightness in your room? The LED Lighting option is the ideal solution to ensure optimal visibility day and night.
An LED strip 2cm wide is integrated and pre-mounted directly onto your kerb. The whole unit can be controlled with an included remote control.
The Rain Sensor
Designed for opening models, this externally mounted sensor automatically triggers the closing of your flat roof window in the event of rain. This way, you can leave your iWINDOW window open with complete peace of mind, without worrying about your room getting wet.

Resources to assist you
Our technical team remains available and at your disposal throughout the entire installation phase of your roof window. You will quickly notice how simple the installation system is. It is possible to complete the assembly in just a few hours. Your CliKIT Flat Roof Window will arrive as a kit containing the roof structure, roofing elements, accessories, and the installation guide.

To successfully complete the installation of your flat roof window, you will need the following tools:
- Cutter
- Tape measure
- Protractor
- Marker
- Drill
- 5.5mm drill bit
- Riveting pliers
- Wrench SW 8
- Allen key SW 5
- Philips screwdriver PH2
- Flat-head screwdriver
- Spirit level
For more information on installation, feel free to view all our documents made available to you:
Installation Guide>
Renovation Guide>
Assembly Video>More than just a customer service
You can count on the support of our building experts and enthusiasts to guide you every step of the way.
A technical advisor is dedicated to you to refine your project together and best meet your needs before and after your order, as well as throughout the entire installation phase.
For any enquiry, do not hesitate to contact our team who will be happy to assist you:
- Monday to Friday from 8:30 am to 12:30 pm and from 1:30 pm to 6:00 pm via our switchboard at +33 (0) 3 66 72 15 14
- At any time by email at contact@clikit.fr
Whether your question is commercial or technical, you can receive all our advice by phone, SMS, video call (FaceTime, WhatsApp) or email.
The CliKIT
team at your service!
Olivier Regnier Sales Director
Cédric Cavaillé Technical Manager
Vanessa Debias Logistics Manager
Nicolas Font Design Office Manager
Jérôme Menu Technical Advisor
Fiona Rossignol Technical Advisor
Manufacturing lead time
For more information on manufacturing and delivery times*, please visit our page on Delivery Terms>
*The final lead time is only known once production begins, and may vary depending on the seasons and factory holiday periods. If you have specific deadlines, it is important to let us know in advance.
Free delivery
Our flat roof window kits are delivered by a specialist carrier equipped with a forklift for delivery as close as possible to your installation site.*
- Free delivery from €1,500 incl. VAT in mainland France, Belgium, Germany, Austria, the Netherlands, Luxembourg
- Delivery to other European countries: on request
- Transport package for Paris intra-muros: €192 incl. VAT
- Transport package for high mountain regions with difficult access: €240 incl. VAT
- Transport package for the Breton islands: on request
- Transport package for Corsica: €690 incl. VAT
- Transport and customs documentation package for Switzerland: €483 excl. VAT**
- Transport package for Monaco: on request
*subject to access conditions for forklift and articulated lorry. It is important to notify us of any potential access issues. **Swiss customs duties and VAT remain the responsibility of the recipient.
- Free delivery from €1,500 incl. VAT in mainland France, Belgium, Germany, Austria, the Netherlands, Luxembourg
- Delivery to other European countries: on request
- Transport package for Paris intra-muros: €192 incl. VAT
- Transport package for hard-to-reach high mountain regions: €240 incl. VAT
- Transport package for the Breton islands: on request
- Transport package for Corsica: €690 incl. VAT
- Transport package and customs documents for Switzerland: €483 excl. VAT**
- Transport package for Monaco: on request
*subject to access conditions by forklift and semi-trailer. It is important to notify us of any potential access issues. **customs duties and Swiss VAT remain the responsibility of the recipient.
Warranties
Our flat roof window kits come with a 10-year warranty, covering both the roof structure and glazing. They have received the Anti-fall Protection certification DIN 18008-6, in combination with the PVC kerb for all dimensions.
These products also benefit from the overall performance of EN1873:2014+A1:2016 (thermal performance, resistance, light transmission, watertightness, etc.). Please note that CE certification is not present as no specific standards yet exist for this category.
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