Fixing and buying guide
VELUX Recessed Flashings 55x78cm EDJ CK02 0000
Who this product is for
This flashing is essential for anyone installing a new skylight or rooflight on a pitched roof, or replacing a damaged flashing on an existing installation. It is suitable for both trade installers and experienced DIY customers undertaking roof work on domestic or commercial properties.
Compatibility and sizing
The EDJ CK02 is sized at 55 × 78cm and is compatible with timber roof structures graded F16 or F24. Before purchase, confirm that your roof pitch falls within the 30 to 60 degree range and that your timber meets one of these grades. Check your skylight or rooflight model to ensure the flashing dimensions match the opening size.
- Roof pitch: 30–60 degrees only
- Timber grades: F16 and F24
- Flashing dimensions: 55 × 78cm
- Material: High-quality plastic
Pre-installation checks
Before fitting, inspect the roof opening and surrounding timber for damage, rot, or misalignment. Ensure the opening dimensions correspond to the flashing size and that the roof pitch is within the specified range. Check that all roofing materials and underlays are in good condition and properly positioned. Have the skylight or rooflight unit ready and positioned correctly, as the flashing must be installed with the window in place to achieve a proper seal.
- Verify roof pitch is between 30 and 60 degrees
- Confirm timber grades are F16 or F24
- Inspect opening for damage or misalignment
- Ensure skylight or rooflight is correctly positioned before fitting the flashing
Installation and fixing
The recessed design of this flashing ensures straightforward installation when the skylight or rooflight is positioned correctly. The flashing integrates with the window frame to create a continuous watertight seal. Follow the manufacturer's installation instructions carefully, ensuring the flashing is fully seated and secured according to the guidance provided with your specific skylight or rooflight model. Proper installation is critical to prevent water ingress and maintain the integrity of the roof structure.