How and where to use guide
VELUX Twin and Combination Flashings 66x118cm EKJ FK06 S0021E
Suitable applications and roof types
This coupled recessed tile flashing is designed specifically for use with compatible VELUX roof windows and Sun Tunnel systems. It is suitable for both new build construction and refurbishment work on pitched tile roofs. The 660×1180mm dimensions and 90mm recessed tile profile make it compatible with standard UK roof tile pitches and configurations. This flashing maintains visual consistency across your roof by creating a neat, integrated finish rather than a raised or obtrusive installation.
- New build and refurbishment roof window installations
- Pitched tile roofs with compatible VELUX roof window or Sun Tunnel systems
- Applications requiring a neat, recessed roof finish
- Projects where weather-tight performance and visual integration are priorities
Installation and on-site considerations
Installation of this coupled recessed flashing requires careful integration with your roof tiles and the compatible VELUX roof window or Sun Tunnel system. The recessed 90mm tile profile is engineered to sit flush with your existing roof covering, creating a weather-tight seal that reduces the risk of water ingress. Ensure the roof opening and surrounding tile work are prepared to the correct dimensions before fitting. The flashing must be secured and sealed according to VELUX installation guidance to guarantee weather-tight performance. This is a precision component and should be installed by experienced installers familiar with VELUX roof window systems.
- Verify compatibility with your specific VELUX roof window or Sun Tunnel model before ordering
- Prepare the roof opening to exact dimensions to ensure proper flashing fit
- Follow VELUX installation instructions for securing and sealing the flashing
- Ensure all joints and edges are properly sealed to prevent water ingress
- Install on pitched tile roofs only; not suitable for flat roofs or other roof types
Weather-tightness and maintenance
The coupled recessed design of this flashing is engineered to provide a weather-tight installation that minimises the risk of water ingress around your roof window or Sun Tunnel system. The recessed profile allows water to drain naturally away from the installation. To maintain weather-tightness, inspect the flashing and surrounding roof tiles periodically, particularly after severe weather. Clear any debris, moss, or lichen from the flashing and roof area to ensure water can drain freely. Check that all seals and joints remain intact and reseal if necessary using appropriate roof sealants.
- Inspect flashing and seals annually and after severe weather
- Clear debris and moss from the flashing area to maintain drainage
- Reseal any gaps or damaged joints promptly to prevent water ingress
- Do not apply excessive force or attempt to adjust the flashing once installed