Fixing and buying guide

Who this product is for

This flashing is for builders, roofers, and serious DIY installers fitting VELUX rooflights into new or existing timber framed roofs in residential or commercial buildings. It is not suitable for other rooflight brands or non-timber frame construction methods.

Compatibility and sizing

This EDJ FK06 flashing is engineered to fit VELUX rooflights with a length between 47–50cm and a width between 100–120cm. Check your rooflight dimensions carefully before ordering. The flashing size of 66×118cm is designed to accommodate these standard rooflight dimensions and integrate properly with timber frame construction.

• Rooflight length range: 47–50cm
• Rooflight width range: 100–120cm
• Flashing overall size: 66×118cm
• Material: High-density polyethylene (HDPE) for weather resistance and durability

Pre-installation checks

Before fitting, verify that your VELUX rooflight falls within the specified length and width ranges. Inspect the flashing for any damage during delivery. Ensure your timber frame roof structure is prepared and ready to receive the rooflight and flashing assembly, and confirm that all necessary roof membrane and insulation work is complete or planned in the correct sequence.

• Confirm rooflight dimensions match the 47–50cm length and 100–120cm width specification
• Check flashing for transport damage
• Verify timber frame roof structure is ready for installation
• Plan membrane and insulation work around flashing installation

Installation overview

The recessed design of this flashing allows it to sit flush with the roof structure, minimising visual impact and maintaining clean lines. It must be installed as part of the complete rooflight assembly in timber framed construction, working with your roof membrane and insulation layers to create a weathertight seal. Follow VELUX installation guidance and building regulations for your specific application.