How and where to use guide
VELUX Twin and Combination Flashings 134x140cm EBW UK08 0021B
Suitable applications and installation location
These flashings are specifically designed for flat roof installations where VELUX rooflights are being fitted. The EBW UK08 0021B system creates a secure seal between the rooflight frame and the surrounding roof surface, preventing water from entering the building envelope. The flashings work in conjunction with standard roofing materials to achieve a seamless, weather-tight surface. Before installation, confirm that the product dimensions of 134 × 140 cm match your project specification and that the Grade B material is appropriate for your application.
- Flat roof rooflight installations only
- Compatible with VELUX rooflights and EBW UK08 0021B roofing system
- Works alongside standard roofing materials
- Verify dimensions and grade against your project specification before ordering
Installation and fixings
Install the flashings in line with current site practice and VELUX manufacturer guidance. Use suitable fixings appropriate to your roofing material and substrate to secure the flashings firmly in place. Ensure the flashing sits correctly around the rooflight frame to maintain the watertight seal. The plastic material must be handled carefully during installation to avoid damage that could compromise the weathering protection.
- Follow VELUX manufacturer installation instructions
- Use fixings suitable for your roofing material and substrate
- Ensure correct positioning around rooflight frame
- Handle plastic material carefully to avoid damage
Maintenance and on-site considerations
After installation, inspect the flashing regularly to ensure the watertight seal remains intact and that no debris has accumulated around the rooflight perimeter. Check that fixings remain secure and that the flashing has not shifted or lifted. Keep the area around the rooflight clear of leaves, moss, and other debris that could trap moisture and compromise the weathering protection. If damage is identified, repair or replace the flashing promptly to maintain water ingress protection.
- Inspect regularly for damage or movement
- Keep rooflight perimeter clear of debris
- Check fixings remain secure
- Replace promptly if damage occurs