Fixing and buying guide
VELUX Twin and Combination Flashings 55x98cm EKW CK04 S0122
What this product is for
These flashings are designed specifically for flat roof applications where you need to seal around roof penetrations or transitions. They work as part of a complete roofing system to prevent water ingress from wind-driven rain and snow. The twin and combination design allows flexibility in how you configure the flashing to suit your roof layout and penetration requirements.
- Flat roof flashing for timber-framed buildings
- Seals against wind-driven rain and snow
- Larger 55x98cm size for substantial roof areas
- Part of a complete roofing weatherproofing system
Compatibility and sizing
This flashing is compatible with structural timber grades C16, C20, C24 and C32. The 55x98cm dimensions suit larger flat roof applications. Before ordering, measure your roof penetration or transition area to confirm this size is appropriate for your project. These flashings must be installed as part of a complete roofing system with other compatible components to achieve proper weatherproofing.
- Works with timber grades C16 to C32
- Size: 55 x 98cm (21.6 x 38.6 inches)
- Designed for larger flat roof areas
- Requires integration with other roofing components
Material and durability
The flashing is manufactured from galvanised steel, which provides reliable corrosion resistance for long-term external exposure. Galvanising protects the steel from rust and weathering, ensuring the flashing maintains its watertight seal over many years of service on exposed roof areas.
- Galvanised steel construction
- Resists corrosion from weather exposure
- Durable for long-term external use
Installation considerations
Installation of these flashings should be carried out in conjunction with other roofing components to ensure proper sealing and structural integrity. This is a specialist task that requires understanding of flat roof construction and weatherproofing principles. Ensure the timber substrate is within the compatible grades and that all components are properly secured and sealed according to the roofing system specification.
- Install as part of a complete roofing system
- Requires proper integration with other roof components
- Specialist installation recommended
- Verify timber grade compatibility before fitting