A flat roof window guide and a VELUX flat roof window size guide.
Posted by Lawrie Fraser on 1st February 2023
What is a flat roof window?
A flat roof window is a type of window that is designed to be installed on flat roofs, such as those found on garages, sheds, and other outdoor structures. Flat roof windows usually feature a pane of glass that is framed with a metal or plastic casing, and they are designed to be weatherproof and sealed against the elements. These windows are a great way to add natural light to a room without compromising the structural integrity of the roof.
What are the benefits of a flat roof window?
A flat roof window is a great way to bring natural light into a room. It can open up a space and create a feeling of openness and airiness. It can also help to reduce energy costs by allowing natural heat to enter the room in the winter months and providing ventilation in the summer months. In addition, a flat roof window can add a unique aesthetic to a room, making it a great option for those looking to add a bit of flair.
What Types of flat roof windows are there?
VELUX curved glass flat roof window.
Let more light into your home with VELUX flat roof windows. Part of our new generation of rooflights, the VELUX glass rooflight with curved glass is a revolution in window design.
The unique design with a slim frame and invisible sash provides maximum daylight and a beautiful design from inside the home - even with a blind installed. In addition, the curved-shaped glass top allows rainwater to easily drain off the surface - even on 0° roof pitches.
- Maximum daylight area.
- Excellent energy performance.
- State-of-the-art design.
- Excellent sound reduction.
- Clear view and drainage.
VELUX flat glass flat roof window.
Let more light into your home with VELUX flat roof windows. Part of our new generation of rooflights, the VELUX flat glass rooflight will bring the magic of daylight into your home.
The unique design with a slim frame and invisible sash provides maximum daylight and a beautiful design from inside the home - even with a blind installed.
- Maximum daylight area.
- Excellent energy performance.
- State-of-the-art design.
- Excellent sound reduction.
| VELUX Curved Glass | |
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Let more light into your home with VELUX flat roof windows. The VELUX dome with glazing is an advanced dome solution for installation in 0-15° roof pitches. It is an effective product for letting in daylight and fresh air, without compromising on energy efficiency and comfort with sun and heat protection products.
The insulated base unit has an integrated 2-layer insulating glass unit and the polycarbonate top unit is available in a clear or opaque version.
- Good daylight area.
- Good energy performance.
- Classic design.
- Good sound reduction.
VELUX Flat Roof window and Curved Roof Window Sizes.
| Size cm (W) | Size cm (H) |
| 60 | 60 |
| 80 | 80 |
| 90 | 60 |
| 90 | 90 |
| 100 | 100 |
| 120 | 90 |
| 120 | 120 |
| 150 | 100 |
| 150 | 150 |
| 200 | 100 |
What options do you have with a flat roof window?
With our range of flat roof window and curved glass roof window. You can choose between manual, electric or solar.
VELUX fixed flat roof window -
- Mains powered window for flat roofs.
- Control pad or remote control
- Pre-installed hidden window operator
- Silent motor operation
- Wear-resistant, high quality white PVC frame
- Rain sensor ensures that the window closes automatically in case of rain
- Easy installation of mains powered decoration and sun screening products.
- Low energy insulating glass unit.
- Protective dome
- Maintenance-free surfaces Roof pitch
- Can be installed in roof pitches between 0° and 15° Materials.
- Extruded PVC
- Glass laminated inner pane.
- VELUX ThermoTechnology™ insulation
- Polycarbonate
VELUX electric flat roof window -
- Fixed (not opening) window for flat roofs.
- Wear-resistant, high quality white PVC frame
- Low energy insulating glass unit.
- Protective dome
- Maintenance-free surfaces
- Can be installed in roof pitches between 0° and 15° Materials.
- Extruded PVC
- Glass laminated inner pane.
- VELUX ThermoTechnology™ insulation
- Acrylic or polycarbonate
VELUX solar flat roof window -
- Sun/Daylight powered via fixed solar panel
- Control pad or remote control
- Pre-installed hidden window operator
- Silent motor operation
- Wear-resistant, high quality white PVC frame
- Rain sensor ensures that the window closes automatically in case of rain
- Easy installation of solar panel mounting on the glass unit
- Protective dome
- Maintenance-free surfaces Roof pitch
- Can be installed in roof pitches between 0° and 15° Materials
- Extruded PVC
- Glass laminated inner pane.
- VELUX ThermoTechnology™ insulation
- Polycarbonate
VELUX flat roof window structural opening size.
The VELUX flat glass roof window and curved glass roof window. Both roughly have the structural opening size equivalent to the interior visble glazing size.
Replacing your old VELUX flat roof window?
When replacing a VELUX roof window of any time. Best practise is to find the allocated roof window code. This allows us to identify the correct roof window model and its exact replacement. However, we understand over time they can fade or get lost. If you cannot locate your flat roof window code. Please measure your internal opening size. From here our expert team can try find your new perfect VELUX flat roof window.
Replacing your old VELUX flat roof window?
When replacing a VELUX roof window of any time. Best practise is to find the allocated roof window code. This allows us to identify the correct roof window model and its exact replacement. However, we understand over time they can fade or get lost. If you cannot locate your flat roof window code. Please measure your internal opening size. From here our expert team can try find your new perfect VELUX flat roof window.
View more in roof window knowledge hub.
Looking for a budget model? Shop our range of COXDOME.