How and where to use guide
VELUX Twin and Combination Flashings 55x118cm EBW CK06 0021C
Typical applications and roof types
This flashing is designed for pitched roof window installations where a CK06 window size is being fitted. It works effectively on standard pitched roof pitches and is compatible with a range of common roofing materials found in UK residential and commercial properties. The dual twin and combination function means this single flashing unit can accommodate different roof material configurations around the window perimeter, reducing the need for multiple flashing types on site.
- Slate roof installations
- Clay tile pitched roofs
- Concrete tile pitched roofs
- Sheet material pitched roofs
- CK06 window size apertures measuring 55x118cm
Installation and positioning
The flashing should be positioned around the CK06 roof window aperture to create a complete weathertight seal. The 55x118cm dimensions are designed to fit the standard aperture size for this window model. Installation on pitched roofs requires careful alignment to ensure the flashing sits flush against both the window frame and the surrounding roof material, with proper overlap to direct water away from the window opening. The flashing must be secured and sealed according to the specific roof material being used, whether slate, tile or sheet covering.
- Position flashing around the complete window aperture perimeter
- Ensure proper alignment with CK06 window frame dimensions
- Create adequate overlap with surrounding roof materials for water shedding
- Secure flashing according to roof material type and pitch requirements
Weatherproofing and maintenance
The primary function of this flashing is to maintain a weathertight seal that prevents water penetration around the roof window installation. Once properly installed, the flashing requires minimal maintenance but should be inspected periodically, particularly after severe weather, to ensure the seal remains intact and no debris has accumulated around the window perimeter. Any gaps or movement should be addressed promptly to maintain weather protection.
- Inspect flashing regularly for signs of water ingress or seal degradation
- Clear any debris or moss growth from around the window perimeter
- Check that the flashing remains properly sealed and flush with roof materials
- Address any gaps or movement immediately to prevent water damage
Limitations and compatibility notes
This flashing is specifically designed for CK06 window sizes with 55x118cm aperture dimensions. It is intended for pitched roof installations only and is not suitable for flat roofs. The flashing is compatible with slate, clay tile, concrete tile and sheet roof materials, but installation methods may vary depending on your specific roof covering type. Always verify that your roof window model matches the CK06 specification before ordering to ensure correct fit and weatherproofing performance.
- Designed exclusively for CK06 window size and 55x118cm apertures
- Pitched roof installations only
- Verify window model compatibility before installation
- Installation method varies by roof material type