How and where to use guide
VELUX Standard Flashings 78x118cm EDL MK06 0000
Typical applications and installation location
This flashing is used to seal 78x118cm VELUX roof windows on pitched roof installations. It sits between the window frame and the roof covering, creating a weathertight barrier. The flashing is suitable for standard pitched roofs with tile or slate coverings. Installation involves positioning the flashing around the window opening before fitting the roof window itself, ensuring the flashing integrates properly with the surrounding roof material. The system is designed for straightforward installation on pitched roofs where water naturally runs downslope.
- Install on pitched roofs with standard roof pitches
- Compatible with tile and slate roof coverings
- Positions between window frame and roof covering
- Directs water away from window frame into roof below
- Suitable for new installations or window replacements
Installation and on-site considerations
Before installation, ensure the roof opening is correctly sized for the 78x118cm window and that the roof pitch is within standard specifications for this flashing type. The flashing should be installed before the roof window is fitted, allowing proper integration with the roof covering. Follow VELUX installation guidance to ensure the flashing sits correctly and all edges are properly sealed. Pay particular attention to the lower edge of the flashing, which must direct water into the roof covering below rather than allowing it to pool or run behind the frame.
- Install flashing before fitting the roof window
- Ensure roof opening matches 78x118cm dimensions
- Check roof pitch is suitable for standard flashing
- Integrate flashing edges properly with roof tiles or slates
- Verify lower edge directs water into roof covering
Material composition and durability
The EDL MK06 flashing is manufactured from aluminium and synthetic components, providing durability and weather resistance. Aluminium offers corrosion resistance and longevity in exposed roof conditions, whilst the synthetic components ensure flexibility and weathertight sealing around the window frame. This combination of materials is designed to withstand UK weather conditions and maintain its weathertight properties over the long term.
- Aluminium construction resists corrosion
- Synthetic components provide weathertight sealing
- Designed for long-term durability in exposed conditions
- Maintains integrity through seasonal temperature changes
Maintenance and ongoing performance
Once installed, the flashing requires minimal maintenance. Periodically check that the flashing remains properly seated and that no debris has accumulated around the window perimeter that might obstruct water drainage. Ensure roof tiles or slates remain properly aligned around the flashing edges. If you notice any water staining or dampness around the window frame, inspect the flashing installation to confirm all edges are properly sealed and integrated with the roof covering. The weathertight seal depends on correct installation and ongoing alignment of surrounding roof materials.
- Check flashing remains properly seated after installation
- Clear debris from around window perimeter
- Verify roof tiles or slates remain properly aligned
- Inspect if water staining appears around window frame
- Ensure all flashing edges remain sealed and integrated