How and where to use guide
VELUX Recessed Flashings W/ Installation Productions 94x160cm EDJ PK10 2000
Typical applications and installation context
Use this flashing kit when installing VELUX 94×160cm roof windows or Sun Tunnel systems into pitched roofs with tile covering. The recessed design allows the window to sit flush with the roof surface, creating a neat, integrated appearance rather than a raised profile. This is the standard approach for new build properties and for refurbishment work where visual consistency with the existing roof line is important. The kit is engineered for typical UK roof conditions and provides the structural and weather-tight interface between the window frame and the surrounding roof structure and tiles.
- New build installations where roof windows are specified during construction
- Refurbishment and loft conversion projects requiring weather-tight window integration
- Multiple window installations where bulk packs of 10 units offer efficiency
- Pitched tile roofs where a flush, professional finish is required
Installation and on-site preparation
Proper installation of the recessed flashing is critical to achieving weather-tight performance. The BDX 2000F frame must be correctly positioned within the roof opening, and the 90mm tile flashing must be carefully integrated with the existing roof tiles and underlayment. The flashing sits beneath the upper tiles and above the lower tiles, creating a stepped weather-tight seal. Installation should follow VELUX technical guidance and building regulations requirements for roof penetrations. Ensure the roof structure is adequately prepared, with correct spacing and support for the window frame, and that all fixings are secure before proceeding with tile work.
- Check roof opening dimensions match 940×1600mm window size before commencing work
- Ensure roof structure is sound and properly supported at the installation point
- Follow VELUX installation instructions for frame positioning and fixing
- Integrate flashing carefully with existing tile courses to maintain weather protection
- Verify all seals and fixings are secure before completing roof tiling
Weather protection and long-term performance
The recessed flashing system is engineered to provide reliable weather protection in UK roof conditions when installed correctly. The 90mm depth and stepped tile flashing design work together to shed water effectively and prevent water ingress at the roof penetration. The system forms a complete weather-tight interface, but its performance depends on proper installation and integration with the roof covering. Once installed, the flashing requires no special maintenance beyond routine roof inspection to ensure tiles remain secure and the roof covering is in good condition around the window perimeter.
- Weather-tight seal is achieved only when flashing is correctly integrated with roof tiles
- Inspect the roof around the window annually, particularly after severe weather
- Ensure roof tiles remain secure and properly seated over the flashing
- Do not attempt to modify or cut the flashing on site without VELUX guidance
Limitations and compatibility
This kit is specifically designed for 94×160cm VELUX roof windows and compatible Sun Tunnel systems. It is not suitable for other window sizes or manufacturers. The recessed flashing system is intended for pitched tile roofs; alternative flashing solutions are required for other roof types such as slate, metal, or flat roofs. Installation should be carried out by competent tradespeople familiar with roof work and building regulations. The pack contains 10 units; confirm you have sufficient kits for your project before ordering.
- Designed exclusively for 940×1600mm VELUX windows and Sun Tunnel systems
- Not compatible with other window sizes or manufacturers
- Intended for pitched tile roofs only
- Installation by competent roofers or builders is essential for weather-tight performance