Fixing and buying guide

What this product is and who it is for

This is a standard flashing kit engineered specifically for VELUX EDP CK04 2000 Pro+ roof windows. It is designed for builders, roofers, and serious DIY installers undertaking new build or refurbishment projects where roof windows need professional weather-tight integration. The kit simplifies on-site assembly by including all necessary installation products, reducing fitting time and ensuring consistent results.

Compatibility and sizing

This flashing is sized exclusively for 55×98 cm VELUX roof windows and is compatible only with VELUX EDP CK04 2000 Pro+ roof window systems. Before ordering, confirm your window dimensions and model number match these specifications. Using the wrong size or incompatible flashing will compromise the weather seal and roof integrity.

• Window size: 55×98 cm
• Compatible with: VELUX EDP CK04 2000 Pro+ systems only
• Check your existing window model before purchase

Pack contents and pre-installation checks

This is a complete flashing kit with all installation products included. Before fitting, inspect the flashing and components for damage in transit. Ensure the roof opening dimensions match the 55×98 cm specification and that the surrounding roof structure is sound and ready to receive the flashing. Check that your VELUX window frame is clean and free from debris at the installation point.

• Complete kit — all installation products included
• Inspect for transit damage before fitting
• Verify roof opening size matches 55×98 cm
• Ensure roof structure is sound and prepared

Installation and performance

The flashing is engineered to provide a professional weather-tight roof integration suitable for typical UK roof conditions. Follow VELUX installation guidance carefully to ensure the seal is properly formed. The kit's inclusion of installation products means you should have everything needed for correct assembly on site. Proper installation is essential for long-term performance and to prevent water ingress.