Fixing and buying guide

What this product is and who it is for

This is a slate flashing kit engineered to seal and finish the perimeter of a VELUX roof window or Sun Tunnel installation where it meets a slate roof. It is intended for professional installers and experienced DIY customers undertaking roof window installation or replacement on slate-covered roofs. The kit is suitable for both new build construction and refurbishment work.

Compatibility and sizing

The EDL PK08 2000 Pro+ flashings are designed to work with standard VELUX roof window and Sun Tunnel systems. The 940×1400mm dimensions (94×140cm) are sized for typical roof window openings of this specification. Before purchase, confirm that your VELUX window or Sun Tunnel system is compatible with this flashing size and that your roof covering is slate. Check your window documentation or contact VELUX directly if you are uncertain about compatibility.

• Flashing dimensions: 940×1400mm
• Flashing thickness: 8mm
• Compatible with VELUX roof windows and Sun Tunnel systems
• Designed for slate roof coverings

What is included and pre-installation checks

This is a complete kit containing the slate flashing and all installation products needed for fitting. Before beginning installation, ensure the roof opening is correctly sized and prepared, the roof structure is sound and level, and all necessary roof coverings and underlays are in place. Verify that the flashing dimensions match your roof opening and that you have the correct VELUX window or Sun Tunnel unit ready for installation.

• Complete flashing kit with installation products included
• No additional fixings or sealants required to be purchased separately
• Check roof opening dimensions match 940×1400mm before ordering
• Ensure roof structure is prepared and ready for installation

Performance and installation

The 8mm slate flashing is engineered to provide a weather-tight seal that integrates seamlessly with slate roof coverings, maintaining a visually consistent finish. The included installation products support straightforward fitting by professional installers. The system is designed to perform reliably in typical UK roof conditions, protecting the roof window opening from water ingress and weather exposure. Installation should follow VELUX guidance and building regulations requirements for roof window installation.