How and where to use guide
VELUX Twin and Combination Flashings 55x118cm EBL CK06 0021C
Installation location and application
Install this flashing on pitched roofs where a CK06 VELUX window is being fitted. The flashing sits between the window frame and the roof covering, creating a weatherproof transition. The combination design means both the upper flashing (above the window) and lower flashing (below the window) are integrated into one unit, eliminating the need for separate upper and lower components. This makes it particularly useful for straightforward pitched roof installations where space or component management is a consideration.
- Use only with CK06 VELUX windows (55x118cm dimensions)
- Suitable for pitched roof installations at standard roof pitches
- Integrates both upper and lower weatherproofing functions
- Reduces on-site component count and handling
Installation steps and positioning
Before installation, ensure the roof opening is correctly sized and prepared to CK06 specifications. Position the flashing so it sits flush against the roof structure, with the upper portion extending above the window frame and the lower portion extending below it. The flashing must be secured firmly to prevent movement during and after installation. Ensure all edges are sealed properly to prevent water penetration at the junction between the flashing and roof covering. The integrated design means you do not need to align separate upper and lower flashings, simplifying the weatherproofing process.
- Check roof opening dimensions match CK06 requirements before fitting
- Position flashing centrally over the window opening
- Secure flashing firmly to prevent shifting
- Seal all edges thoroughly to prevent water ingress
- Ensure flashing sits flush with roof structure
Maintenance and on-site considerations
After installation, inspect the flashing regularly to ensure seals remain intact and no water is penetrating around the edges. Clear any debris such as leaves or moss from around the flashing, particularly in the lower section where water naturally collects. Check that the flashing has not shifted or lifted, especially after severe weather. The integrated design reduces maintenance points compared to separate flashings, as there is only one unit to monitor rather than multiple components.
- Inspect seals regularly for signs of deterioration
- Clear debris from around the flashing to maintain water drainage
- Check flashing remains secure and has not lifted
- Monitor for any water staining or damp around the window frame
- Fewer maintenance points due to integrated design