How and where to use guide
VELUX Twin and Combination Flashings 78x98cm EBL MK04 0021B
Typical applications and suitability
These flashings are intended for use with VELUX rooflight installations on flat roof and wall applications. The 78 x 98cm size accommodates standard rooflight openings. Before ordering, confirm that the flashing dimensions match your rooflight opening size and that your timber structural members fall within the compatible grades F16 to F96 or are S2S stock. Check your project specification and rooflight documentation to ensure this product is the correct type for your installation.
- Flat roof installations with standard VELUX rooflight openings
- Wall-mounted rooflight installations
- Timber structures graded F16 through F96 and S2S
- Both professional and DIY installations
Installation and fixing
Install the flashing around the rooflight opening to create a continuous weather-tight seal. Position the flashing so it sits flush against the timber frame and rooflight unit. Use suitable fixings appropriate to your roof construction and follow current site practice for your specific application. Ensure the flashing is securely fastened to prevent movement or water penetration. The high-quality plastic construction provides durability, but fixings must be installed correctly to maintain the weather-tight seal.
- Position flashing around rooflight opening for continuous seal
- Use appropriate fixings for your roof type and timber grade
- Follow current site practice and building regulations
- Ensure secure fastening to prevent water ingress
Maintenance and durability
The plastic construction of these flashings is designed to resist weathering and provide long-term protection. Periodically inspect the flashing and fixings to ensure they remain secure and that the seal has not been compromised. Clear any debris or standing water from around the rooflight installation. If damage occurs, the flashing should be replaced to maintain weather-tightness.
- Inspect regularly for signs of movement or damage
- Check fixings remain secure
- Clear debris and standing water from around installation
- Replace if damage compromises the weather-tight seal
Before you order
Confirm the rooflight opening dimensions match the 78 x 98cm flashing size. Verify your timber grade falls within the compatible range F16 to F96 or is S2S stock. Check your project specification and rooflight manufacturer documentation to ensure this is the correct flashing type for your installation. Measure twice to avoid ordering incorrect sizes.
- Confirm rooflight opening dimensions: 78 x 98cm
- Verify timber grade compatibility
- Check rooflight manufacturer requirements
- Review project specification before purchase