Fixing and buying guide

Who this product is for

This flashing kit is for builders, roofers, and serious DIY installers fitting VELUX roof windows or Sun Tunnel systems into single plain tile roofs. It suits both new build projects and refurbishment work where you need a complete, integrated flashing solution with all installation products included.

Compatibility and sizing

This flashing is designed specifically for single plain tile roofs with a maximum tile thickness of 14mm. The aperture size is 1340×980mm, which corresponds to the UK04 2000 Pro+ VELUX roof window or Sun Tunnel size. Before ordering, confirm your roof tile type is single plain tile and measure your existing or planned aperture to ensure this size matches your requirements. Check that your VELUX window or Sun Tunnel system is compatible with the UK04 2000 Pro+ range.

• Roof type: Single plain tile only
• Maximum tile thickness: 14mm
• Aperture dimensions: 1340×980mm
• Compatible with VELUX roof windows and Sun Tunnel systems

What is included

This is a complete installation kit. It includes the flashing itself plus BDX and BFX installation products, which are the components needed to secure and seal the flashing to your roof structure and tiles. You should not need to source additional flashing or core installation products separately.

• VELUX EDP UK04 2000 Pro+ flashing
• BDX installation product
• BFX installation product

Pre-installation checks

Before you begin, verify that your roof structure can accommodate the 1340×980mm aperture and that your single plain tiles are no thicker than 14mm. Confirm the VELUX roof window or Sun Tunnel you are installing matches the UK04 2000 Pro+ specification. Check that all components in the kit have arrived undamaged. Ensure you have adequate access to the roof and that weather conditions are suitable for installation work. Review the installation instructions supplied with the kit to familiarise yourself with the BDX and BFX product application before starting work.