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Configure your iWINDOW2 Opening Flat Roof Window
- Made in Belgium
- Dimensions: 73 standard models
- Model: opening with upstand
- Roof: 24mm 44.2 double glazing
- Tint: clear, opal, heat-resistant
- Option: electric blind, sun blind
- Optimal insulation and brightness
- Simple assembly & ready to install
Summary
Lead time: 3 to 12 weeks* *Lead time varies depending on dimensions in stockand selected options
Delivery
included*
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? Opt for the iWINDOW2 Opening Flat Roof Window and benefit from up to 40% more light input compared to an ordinary skylight!
Combining aesthetics and modernity, its compact, high-quality PVC frame, combined with the HR++ super-insulating safety double glazing, guarantees excellent insulating power (Ug of 1.0 W/m²K) as well as good acoustic insulation (Rw 39 dB).
Its sleek and modern design adds real value to your home, while also providing you with unlimited, free, and beneficial natural energy for your well-being!
This flat roof window is perfectly suited for flat roofs. It can be installed under a pitch ranging from 0° to 25°. To avoid any dirt build-up, it is advisable to opt for a minimum angle of 5°.

Finishes: exterior/interior
White Exterior
White InteriorThe 24mm 44.2 double glazing
Clear Glass
Opal Glass
Solar GlassOptional accessories
Electric Mosquito NetBlind
Electric Sun ShadeBlind
Electric BlackoutBlind




Custom-designed profiles
- Laminated safety double glazing type 44.2 reinforced with Argon gas
- White powder-coated anodized aluminium frame
- Black ceramic glass border for a perfect glass integration
- Insulating PVC frame with a height of 28mm
- Insulating PVC upstand with a thickness and height of 95mm x 200mm, without any bulge for maximum daylight opening
- Lower fixing flange
- 2cm groove for a seamless joint with the ceiling finish
- Hinge for fixing the frame and the upstand

Super-insulating double glazing
The iWINDOW2 Opening Flat Roof Window offers excellent insulation thanks to its compact and insulating PVC frame, combined with super-insulating safety glazing. For added safety, the inner glass is laminated, and the outer glazing is toughened for greater resistance.
Available in 3 tints, this window model gives you the option 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 feeling of glare in your room, and the heat-reduction tint to filter more sunlight and cope with greater heat.

Comparison of the tints of the 24mm Double Glazing type 44.2
| DP Double Glazing Clear HR ++ | DP Double Glazing Opal HR ++ | DP Double Glazing Solar protection HR ++ | |
|---|---|---|---|
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|
| Glass tint | Clear Tint | Opal Tint | Heat-Reduction Tint |
| Glass thickness | 24mm | 24mm | 24mm |
| Glass weight | 20kg/m² | 20kg/m² | 20kg/m² |
| Light transmission TL | 75% | 72% | 53% |
| U insulation value | 1.00 W/m² K | 1.00 W/m² K | 1.00 W/m² K |
| Solar factor g | 52% | 50% | 40% |
| Acoustic sound insulation Rw | 39 dB | 39 dB | 39 dB |
An upstand designed for maximum light
Compatible with all types of roofing membranes, the iWINDOW2 Opening Flat Roof Window is fitted with an Insulating PVC 20/00 EP Upstand stabilized by a specific UV-resistant anti-discoloration treatment. Furthermore, its polymer composition combines lightness and strength, greatly facilitating its handling and installation.

With its straight shape, the 20/00 EP Upstand has the advantage of offering maximum light transmission. Indeed, unlike an angled upstand, the incoming light surface for, for example, a roof window measuring 100 x 100cm suffers no loss, with a real value of 1 m².
Thus, for equal dimensions, you benefit from maximum light input, all at the same price!
Fitted with an Anodized Raw Aluminium Flashing, the latter ensures good water drainage to prevent any standing water on the roof. For large-size windows, the flashing is assembled and fixed using stainless steel self-tapping screws with a Nyplas washer, making it easier to handle. It is also fitted with four ASA synthetic corner pieces to reinforce the whole assembly.

Product +
- Sleek and modern design that adapts to all types of architecture
- High-insulation safety double glazing (Ug = 1.0 W/m²K)
- Maximum light surface corresponding to the measurement of your daylight opening
- Good acoustic insulation of 39dB
- 28mm thick decorative frame
- Available in fixed or opening model
- Low maintenance with installation from 5°

Adjust the ventilation with a simple gesture
The PVC 20/00 EP Upstand is fitted with an Integrated 24V Motor with a single or double actuator depending on the weight of your iWINDOW model. The motorization is provided by a built-in control unit and a remote control automatically connected to the complete set.
The control unit includes open contacts in anticipation of adding a home automation system, or if you wish to connect fixed push buttons.
Its propulsive force reaches 1500 N at a speed of 7mm/s, giving the iWINDOW Flat 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 applications such as Google Home, Apple HomeKit or Samsung SmartThings.
Connecting your device is quick and intuitive, completed in just a few steps. View 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. Fitted with a 230 V mains power supply, this electric blind can be controlled from the remote control of your iWINDOW Flat Roof Window, or from your Smartphone. There is no need to wire this device as it has a wireless Bluetooth module. Installation is done in the blink of an eye, and only a 230V mains power supply at the intended location of your roof window needs to be planned.
The Electrically Operated Blind is available in 3 versions: the Mosquito Net 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 lighting, and the Blackout Version to block any light source from entering while keeping you out of sight.

Electric Mosquito Net Blind
Electric Sun Shade Blind
Electric Blackout BlindManual Blinds
The Manual Sun Shade and Blackout Blinds stand out for their ease of use. Made of an off-white fabric, they have a light transmission of 20% and 0.5% respectively, allowing you to be partially or fully protected from UV rays while providing heat reflection.
When unfolded, the blind perfectly conceals the tensioned cables and their drop point, allowing no light gap that could show through on the floor of your room. Its opening system is operated by means of a removable pole 1.5m in length.
Our manual blind models are available on request via our Online Quote Form.

The External Sun Shade
Made up of an aluminium frame lacquered in Grey Black (RAL 7021), the External Sun Shade is installed directly onto the frame of your flat roof window from your rooftop. Thanks to its clip-on fixing system, installation is simple and quick. The advantage lies in the fact that it offers solar protection up to 8 times greater than an interior sun shade.
Held in place by a rubber profile, the blind is made of a 50mm thick fiberglass with a PVC coating for optimal weather resistance. Furthermore, these characteristics limit the contact noise encountered in case of rain or hail. It can be installed at temperatures ranging from -20 to 70°. With its 6% light transmission, this sun shade thus stands as a high-performance heat shield.

Pre-mounted LED Lighting
The day is fading but you want to keep maximum brightness in your room? The LED Lighting option is the ideal solution to ensure you maintain optimal visibility day and night.
An LED strip 2cm wide is integrated and pre-mounted directly onto your upstand. The whole unit is controllable with an included remote control.
The Rain Sensor
Designed for opening models, this detector placed outside automatically commands the closing of your flat roof window in case of rain. This way, you can leave your iWINDOW window open with complete peace of mind, without fear of your room being soaked with water.

Resources to assist you
Our technical team remains available and attentive to you throughout the entire assembly 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 assembly of your flat roof window, you will need the following tools:
- Cutter
- Tape measure
- Protractor
- Marker
- Drill
- 5.5mm drill bit
- Rivet gun
- Nut wrench SW 8
- Allen key SW 5
- Philips PH2 screwdriver
- Flat-head screwdriver
- Spirit level
For more information on installation, feel free to view all our documents 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 dedicated technical advisor is assigned to you to refine your project together and best meet your requests before and after your order, as well as throughout the entire assembly phase.
For any enquiry, please do not hesitate to contact our team who will be happy to answer 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 Engineering Manager
Jérôme Menu Technical Advisor
Fiona Rossignol Technical Advisor
Manufacturing lead time
For more information regarding manufacturing and delivery lead times*, please consult our page on Delivery Terms>
*The final lead time is only known once production begins, and may vary depending on the season and factory holiday periods. If you have any time constraints, 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 guarantee, including the roof structure and glazing. They have received the Anti-Fall Protection certification DIN 18008-6, in combination with the PVC upstand 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 there are no specific standards yet for this category.
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