How and where to use guide
VELUX Recessed Flashings 134x140cm EDN UK08 0000
Suitable applications and roof types
This UK08 recessed flashing is designed for pitched roof installations where a VELUX UK08 roof window requires weathertight integration. It is compatible with the following roofing materials: slate, clay tile, concrete tile and sheet roofing. The recessed profile allows the window frame to sit flush with the roof plane, making it suitable for both new installations and replacement projects where a neat, integrated finish is required. Ensure your roof pitch and material type match the flashing specification before ordering.
- Slate roofing installations
- Clay tile pitched roofs
- Concrete tile roofing
- Sheet roofing materials
- New build and retrofit applications
Installation and alignment
Careful alignment is critical to the performance of this flashing. The 134×140cm dimensions are specific to UK08 windows and must be positioned to allow the window frame to sit flush with the roof surface. Installation requires precise positioning relative to your roofing material and roof pitch to ensure proper water shedding. The recessed profile must be correctly seated to maintain the weathertight seal. Consult VELUX installation documentation for your specific roof material type, as slate, tile and sheet roofing each require slightly different installation approaches.
- Measure and mark the window opening position accurately
- Align the flashing with your roof pitch and material layout
- Ensure the recessed profile sits flush with the roof plane
- Follow material-specific installation guidance for slate, tile or sheet roofing
- Check water shedding direction before final fixing
Weather protection and maintenance
The recessed design provides a weathertight seal when correctly installed, preventing water ingress around the window frame. After installation, inspect the flashing regularly to ensure the seal remains intact, particularly after severe weather or roof maintenance work. Clear any debris from around the flashing to maintain proper water drainage. If you notice any gaps, movement or water staining around the window, inspect the flashing alignment and seal immediately.
- Inspect the weathertight seal annually
- Clear debris and moss from around the flashing
- Check for water staining or damp inside the room below
- Do not attempt to reposition the flashing once the roof is fully installed
Limitations and important notes
This flashing is sized specifically for UK08 VELUX roof windows and will not fit other window sizes. It is designed for pitched roof installations only and is not suitable for flat roofs. The flashing performance depends entirely on correct installation with your chosen roofing material. Improper installation or use with incompatible roofing materials may result in water ingress and damage. Always verify that your roof material and pitch are compatible before installation begins.
- UK08 size only – not compatible with other VELUX window sizes
- Pitched roof installations only
- Requires correct alignment with slate, tile or sheet roofing
- Installation quality directly affects weather protection performance