Fixing and buying guide

What this product is and who it is for

These are plastic flashings specifically engineered for VELUX rooflights on flat roof applications. They are intended for roofers, builders, and serious DIY installers who are fitting or replacing VELUX rooflights and need to ensure a durable, weather-tight seal around the rooflight perimeter. The flashings work as part of the complete EBW UK08 0021B system to prevent water penetration and maintain weathering protection over the life of the installation.

Compatibility and sizing

These flashings are compatible with VELUX rooflights and the EBW UK08 0021B roofing system. The product measures 134 × 140 cm and is graded as Grade B plastic. You must verify that these dimensions correspond exactly to your rooflight opening size and that the system specification matches your project requirements before purchase. Compatibility with your specific VELUX rooflight model should be confirmed against the manufacturer's technical documentation.

• Size: 134 × 140 cm
• Material: Plastic, Grade B
• System: EBW UK08 0021B
• Application: Flat roof installations only

Pre-installation checks

Before fitting, inspect the flashings for any damage during transport and storage. Ensure the rooflight opening is clean, dry, and prepared to the correct dimensions. Check that all components of the EBW UK08 0021B system are present and compatible with your roofing materials. Confirm that suitable fixings are available for your roof construction type. Review the VELUX installation instructions and current best practice guidance for flat roof work to ensure compliance with building regulations and warranty requirements.

• Verify rooflight opening dimensions match 134 × 140 cm specification
• Inspect flashings for transport damage
• Prepare and clean the rooflight opening
• Confirm all system components are present
• Ensure suitable fixings are available for your roof type

Installation and fixing

Install these flashings in line with VELUX manufacturer guidance and current site practice for flat roof work. The flashings must be securely fixed using suitable fixings appropriate to your roof construction. Ensure the watertight seal is achieved around the entire rooflight perimeter and that the flashings integrate properly with your roofing materials. Do not proceed with installation if you are uncertain about compatibility or fixing methods; consult the manufacturer's technical documentation or a qualified roofer.