VELUX Pro+ EKN 4021E Recessed Insulated Coupled Slate Flashing

The VELUX Pro+ EKN 4021E Recessed Insulated Coupled Slate Flashing is expertly designed for installing two side-by-side VELUX roof windows, offering a sleek, recessed finish that sits 40mm deeper into the roofline for a more streamlined and modern look. Perfect for slate roofs up to 8mm thick, as well as flat roofing materials like membranes and roofing felt, this premium flashing ensures a watertight, weatherproof, and energy-efficient installation.

This VELUX Pro+ EKN 4021E flashing kit includes everything needed for a professional fit — a BFX underfelt collar for superior weather protection, a BDX insulation collar to reduce heat loss, as well as bearing beams and cover plates for a durable and precise installation. The corrosion-resistant aluminium grey finish ensures your flashing blends seamlessly with the outer frames of your VELUX windows, providing long-lasting protection and performance for years to come.

Technical Specification

• Recessed flashing designed for two VELUX windows installed side-by-side
• Creates a 100mm gap between the two window frames
• Suitable for roofing slates, membranes, and roofing felt up to 8mm thick
• Windows sit 40mm deeper within the roof for a sleek, flush appearance
• Includes BDX insulation collar to reduce heat loss and improve energy efficiency
• Includes BFX underfelt collar for a watertight and weatherproof seal
• Bearing beams and cover plates included for secure installation
• Integrated water channels ensure efficient rainwater drainage from your roof
• Corrosion-proof aluminium construction ensures durability and longevity
• Grey aluminium finish matches VELUX window frames for a seamless look
• Suitable for roof pitches between 20° and 90°
• 10-year VELUX guarantee for complete peace of mind