How and where to use guide
VELUX Twin and Combination Flashings 134x140cm EKL UK08 0021E
Suitable applications and roof types
These flashings are designed for pitched roof installations where a roof window requires secure weather-tight sealing. The 134x140cm size accommodates standard UK roof configurations. They are suitable for use on roofs pitched between 30° and 90°, covering steep pitched roofs through to near-vertical installations. The flashings work with timber structural grades F16, F24, and F36, which covers the majority of UK construction timber specifications.
- Pitched roofs between 30° and 90° pitch angle
- Standard UK roof window installations
- Timber grades F16, F24, and F36
- Professional and experienced DIY applications
Installation and on-site guidance
Before installation, verify that your roof pitch falls within the 30° to 90° range and confirm your timber grade specification. The 134x140cm dimensions should be checked against your specific roof window opening to ensure proper fit within standard UK roof configurations. The vinyl-coated polyester material requires careful handling during installation to avoid damage that could compromise the weather seal. Always follow the manufacturer's installation instructions to ensure the flashing sits correctly and creates a complete weather-tight seal around the roof window frame.
- Confirm roof pitch is between 30° and 90°
- Verify timber grade compatibility before fitting
- Check 134x140cm dimensions suit your roof window opening
- Handle vinyl-coated polyester material carefully to prevent damage
- Follow manufacturer installation instructions for weather-tight sealing
Maintenance and durability
The vinyl-coated polyester construction provides long-term weather protection when properly installed. Regular inspection of the flashing seal, particularly after severe weather, helps identify any potential issues early. Ensure guttering and roof drainage systems are clear to prevent water pooling around the flashing, which could compromise the weather seal over time. The durable material resists UV degradation and moisture penetration when maintained correctly.
- Inspect flashing seal regularly, especially after severe weather
- Keep roof guttering and drainage clear around the flashing
- Vinyl-coated polyester resists UV and moisture when properly maintained
- Address any gaps or movement promptly to maintain weather protection