Fixing and buying guide

Who this product is for

This flashing is intended for builders, roofers, and experienced DIY installers working on pitched roof projects where multiple VELUX roof windows are being fitted. It is particularly suited to situations where you want to minimise installation steps and achieve a clean, integrated appearance across two or more window openings on the same roof slope.

Compatibility and sizing

The 55x78cm EKL CK02 flashing is compatible with tile and slate roof coverings on pitched roofs. Before ordering, confirm that your roof windows are VELUX twin or combination units and that your roof pitch and tile or slate course alignment match this flashing size. Check your existing window specifications and roof layout to ensure this integrated unit will accommodate your installation requirements.

• Designed for pitched roof applications only
• Works with standard tile and slate coverings
• Sized for twin or combination window configurations
• Verify roof pitch and tile course spacing before purchase

What is included and pre-installation checks

This product is a complete integrated flashing assembly combining upper and lower profiles in a single 55x78cm unit. Before installation, inspect the flashing for any damage in transit, check that your roof opening dimensions and alignment match the flashing size, and ensure you have the correct roof window units ready for fitting. Confirm that existing roof coverings are in good condition and that you can access the roof safely.

• Integrated upper and lower flashing profiles in one assembly
• Inspect for transport damage before fixing
• Verify roof opening dimensions and alignment
• Ensure roof coverings are sound and properly prepared

Installation and fixing

Careful alignment with roof pitch and existing tile or slate courses is essential for proper water shedding and structural integrity. The integrated design reduces the number of separate components to position, but you must ensure the flashing sits flush with the roof plane and that all edges are sealed and bedded correctly into the tile or slate courses. Follow VELUX installation guidance for your specific roof window model to achieve a weathertight seal around both window openings.