VELUX flat roof windows - Dome

VELUX fixed flat roof window

VELUX fixed (not opening) flat roof window is ideal where there is a need for bringing in large amounts of daylight.

CVP

VELUX vented flat roof windows

The VELUX vented flat roof window provides ventilation and fresh air through the roof. Available with manual or electrical operation.
CXP

VELUX access flat roof window

The VELUX flat roof access window can be opened manually to an angle of 60° to allow easy roof access.
CSP

VELUX Smoke ventilation

Smoke ventilation is often required by law in industrial buildings and offices - above staircases for instance.

It's amazing what adding a VELUX flat roof window can do for your home

Many living spaces in flat roof buildings - including kitchens, living rooms, and offices - get very little natural light. With a VELUX flat roof window, you can transform and improve virtually any space with daylight.

Imagine what a VELUX flat roof window can do for your home: Add natural light, increase fresh air and provide a fresh look to your interior. Available in open or fixed versions. Both can be used for new installations or as replacements for existing dome products.
Maintenance Free

Low maintenance

The flat roof window is maintenance-free as the kerb is made of wear-resistant PVC and the dome is made of a durable acrylic or polycarbonate material.

Great energy-efficiency

VELUX high-performance insulation is integrated into the frame and sash to give the best possible protection against heat loss. This, combined with our optimized protection against thermal bridges, delivers a warmer, more comfortable home.
Ready to Install

Easy to install

A professional installer can install VELUX flat roof windows quickly and easily. You can find a list of installers or locate a dealer in your local area by clicking Find Installers or Find dealers.

VELUX fixed flat roof window

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Fixed flat roof windows

VELUX fixed flat roof window

With a fixed (not opening) flat roof window, you can transform and improve any space. VELUX flat roof windows CFP add the daylight you are looking for to rooms with very little natural light.The double glazed unit has a laminated inner pane for additional safety. The clear or opaque dome is designed to protect the double-glazed unit below from rain and snow. 

Available in nine sizes.

Technical Details

VELUX vented flat roof windows

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VELUX vented flat roof windows

VELUX vented flat roof windows

VELUX vented flat roof window combines daylight with fresh air. It lets you ventilate when needed and is perfect for offices, clinics, workshops and other environments where daylight and fresh air are required.

VELUX vented flat roof window is available with electrical or manual operation.

The double-glazed units has a laminated inner pane for additional safety. The clear or opaque dome is designed to protect the double-glazed unit below from rain and snow.

Available in nine sizes.
Technical Details

Watch the operation

Ventilate your room automatically

VELUX INTEGRA® flat roof windows come with a handy touchscreen control pad for easy and intuitive remote control of windows and blinds. The windows can even be programmed for regular opening, providing automatic ventilation and fresh air.

Manual operation with control rod

VELUX flat roof window with manual control includes a rod for operating the window. The rod offers direct control via a turn-handle that opens and closes the window. Manually controlled roof windows are recommended for installation no higher than 3,5 meters above floor level. It is not possible to fit blinds on this model.

More comfort with VELUX INTEGRA®

Imagine your roof windows automatically letting in fresh air when you need it. Your blinds automatically lowering on a hot afternoon to keep your home comfortable. When leaving, you could close all your roof windows with a single touch. This, and much more, is possible with the VELUX INTEGRA® system, which is available at prices that may surprise you.

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Smoke ventilation for flat roof

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Smoke ventilation for flat roof

VELUX smoke ventilation for flat roof

VELUX roof windows with smoke and heat ventilation* are perfect for buildings that need to meet safety requirements while providing comfort for the users of the building. In the event of a fire, the window automatically opens to let smoke and other harmful gasses out of the building. 

The windows can also be opened and used to provide natural ventilation to the building as needed. 

Smoke and heat ventilation windows are typically used in common access areas such as stairwells and annex connections as well as in industrial buildings and offices.

Watch the operation

  • Opens 50 cm within 60 seconds

  • Unobstructed view with integrated motor 

  • Appears as standard VELUX flat-roof windows inside and outside 

  • Comfort ventilation possible at the touch of a button. Rain sensor available


Flat-roof smoke-ventilation roof window
Window type:  Product code:  Explanation:  EN certified: 
CSP  1073Q Double glazing with dome  EN 12101-2 

Technical Details

Control system overview -
what they do and where they fit

Control system KFX 210

Complete control system
for up to 4 GGL/GGU
smoke-ventilation roof
windows or 1 CSP
flat-roof window.
Includes: KFC 210 +
KFK 100 + KFA 100
    Control unit KFC 210
  • 10 amp.
  • Controls up to 4 GGL/
    GGU smoke-ventilation
    roof windows or 1 CSP
    flat-roof window for
    smoke ventilation.
    Control unit KFC 220
  • 2 x 10 amp.
  • Controls up to 8 GGL/
    GGU smoke-ventilation
    roof windows or 2 CSP
    flat-roof windows for
    smoke ventilation.
    Break-glass point KFK 100 
  • Break-glass point
    for activating
    smoke ventilation
    function.
    Comfort switch KFK 200 
  • Wall switch
    enabling natural
    ventilation for
    daily comfort.
     Smoke detector KFA 100 
  • Smoke detector
    for early fire
    detection.
     Rain sensor KLA 200
  • Closes window in
    comfort ventilation
    mode in case of rain.
  • Overruled in the event of fire.

Applicable wherever smoke ventilation is required.

        Passageways

        Offices and public buildings

        Factories and warehouses

Frequently asked questions (FAQ)

Smoke-ventilation flat-roof windows

VELUX access flat roof window

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VELUX access flat roof window

VELUX access flat roof window

Unlike most roof access windows, the VELUX flat roof access window CXP is just as pleasing to the eye as our other flat roof windows and can therefore easily be combined with a group of VELUX flat roof windows CFP/CVP. It can be opened manually to a 60° angle to allow easy access to the roof.

The double-glazed unit has a laminated inner pane for additional safety. The clear or opaque dome is designed to protect the double-glazed unit below from rain and snow.


Available in three sizes.

Technical Detalis

Watch the operation

Excellent rain noise reduction

All VELUX flat roof windows provide excellent rain noise reduction. The special structure of the dome deflects the noise, while the combination of an exterior dome, double-glazed low-energy pane and insulated kerb reduces noise considerably. Together, they provide protection from rain and hail noise as well as aircraft and traffic noise, and other disturbances.

Accessories

Complete your flat roof window with a VELUX blind. VELUX blinds offer effective sun screening and heat protection to suit every need. Choose among exterior awning blinds or a range of interior blinds - with electrical or solar powered operation.
Burglary Resistance

Awning blinds for
dome flat roof window

• Effective heat protection 
• Solar powered 
• Easy installation

Installed between the window and the dome, transparent awning blinds keep temperatures comfortable by filtering the strong rays of the sun before they heat up your window pane. These solar-powered screens are operated by remote control and are io-homecontrol® compatible. VELUX awning blinds for flat roof windows are simple to install.

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Pleated blinds for flat roof window

• Softly diffuses daylight
• Decorative
• Convenient remote control operation

Perfect for softening incoming daylight and adding a decorative touch, pleated blinds are easy to open and close with our handy remote control. They are io-homecontrol® compatible and come in three colours.

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Much more than just a window

Flat roof windows can dramatically change a room. They’re the fastest way to add natural light, ventilation and the feeling of openness to your under roof spaces. The impact in terms of daylight and fresh air is stunning.