Fixing and buying guide

What this product is and who it is for

These flashings are purpose-designed components that sit between your VELUX rooflight and the roof structure to prevent water ingress and provide a secure seal. They are for anyone installing or replacing a VELUX rooflight in a pitched roof, whether you are a professional roofer, builder, or experienced DIY customer. The twin and combination design means a single product can accommodate different installation scenarios.

Compatibility and sizing

This flashing system is specifically sized for the 94x140cm EKP PK08 0021E VELUX rooflight format. Before ordering, confirm your rooflight dimensions match this specification. The flashings are compatible with timber roof structures graded F16, F24, or F32. Check your roof timbers meet one of these grades; if you are unsure, consult your structural drawings or a surveyor. These flashings are not suitable for other rooflight brands or sizes.

• Rooflight size: 94x140cm
• Compatible timber grades: F16, F24, F32
• System: EKP PK08 0021E
• Verify your rooflight model before purchase

Pre-installation checks

Before fitting, inspect the rooflight frame and surrounding roof structure for damage, rot, or movement. Ensure the roof opening is square and the correct size for this flashing system. Check that your roof pitch falls within the range suitable for this flashing design. Confirm all components are present and undamaged. Have appropriate roofing underlayment and sealants to hand, as these will be needed to complete the weather-tight installation.

• Verify rooflight opening dimensions and condition
• Check roof timbers for rot or structural issues
• Confirm roof pitch compatibility
• Gather sealants and underlayment before starting work

Installation overview

The twin and combination design allows you to select the configuration that suits your specific roof layout and pitch. The flashing sits between the rooflight frame and the roof covering, creating a secure seal. Installation requires careful alignment and secure fixing to the timber structure. Follow VELUX installation instructions precisely to ensure the weather-tight seal is achieved. Proper sealing with appropriate roofing sealant is essential for long-term performance.