VELUX Pro+ EKJ 4021E Recessed Insulated Coupled Tile Flashing

The VELUX Pro+ EKJ 4021E Recessed Insulated Coupled Tile Flashing is expertly designed to ensure a secure, watertight, and energy-efficient installation for two side-by-side VELUX pitched roof windows. Suitable for both flat and profiled roofing materials up to 90mm thick, this premium flashing system guarantees long-lasting protection and a sleek, modern finish. The recessed design allows your windows to sit 40mm deeper into the roofline compared to standard installations, creating a more streamlined and aesthetically pleasing appearance.

This flashing kit is ideal for a 100mm gap between window frames and comes complete with a BFX underfelt collar for superior weatherproofing and a BDX insulation collar to minimise heat loss and cold bridging. Built from corrosion-proof materials with an elegant grey aluminium finish, the EKJ 4021E combines durability, energy efficiency, and style in one comprehensive solution.

Technical Specification

• Suitable for flat or profiled roofing materials up to 90mm in profile
• Recessed installation – windows sit 40mm deeper for a sleek, flush finish
• For side-by-side VELUX window combinations with a 100mm gap between frames
• Compatible with interlocking slates, corrugated sheets, and thatched roofs
• Includes BDX insulation collar to reduce heat loss and improve thermal performance
• Includes BFX underfelt collar for a watertight, weatherproof installation
• Constructed from corrosion-proof aluminium for superior longevity
• Integrated water channels ensure safe and efficient rainwater drainage
• Suitable for roof pitches from 20° to 90°
• Grey aluminium finish blends seamlessly with window frames
• 10-year manufacturer guarantee for long-lasting peace of mind