Fixing and buying guide
VELUX EDL CK01 2000 Slate flashing,single,pro+ inc BDX 2000,grey,55x70
What this product is and who it is for
This is a roof window flashing system for slate-tiled roofs. It is designed for builders, roofers, and experienced DIY installers who are fitting a single VELUX CK01 window into an existing or new slate roof. The kit provides the interface between the window frame and the slate tiles, creating a weathertight seal that prevents water ingress and maintains the thermal performance of the installation. Professional-grade components make this suitable for both new builds and retrofit projects where slate roofing is in place.
- Complete kit: includes Pro+ flashing and BDX 2000 connector
- Designed for slate roof coverings only
- Single window configuration
- Grey finish to blend with slate tiles
Compatibility and sizing
This flashing is engineered specifically for the VELUX CK01 window size. The 55×70 dimensions correspond to the CK01 frame, so you must verify your window model before purchase. This flashing will not fit other VELUX window sizes. The kit is designed exclusively for slate roof installations; it is not suitable for tile, metal, or other roof coverings.
- Window size: CK01 only
- Flashing dimensions: 55×70
- Roof type: Slate tiles
- Not compatible with other window sizes or roof materials
Pack contents and pre-installation checks
The kit includes the Pro+ flashing component and the BDX 2000 connector. Before installation, confirm that your roof window is a VELUX CK01 model and that your roof is covered in slate tiles. Inspect the roof area where the window will be fitted to ensure the structure is sound and the slate is in good condition. Check that you have adequate access and working space on the roof, and ensure all necessary scaffolding or safety equipment is in place. Have the window frame and any additional fixings or sealants specified by VELUX to hand before you begin.
- Verify CK01 window model before starting work
- Confirm slate roof covering is present and in sound condition
- Inspect the roof penetration area for structural integrity
- Ensure adequate access and safety measures are in place
- Gather any additional fixings or sealants as per VELUX instructions
Installation and performance
This professional-grade flashing system is designed for straightforward installation by experienced installers. The Pro+ flashing and BDX 2000 connector work together to create a weathertight seal that manages water runoff and maintains thermal integrity at the roof penetration. The grey finish is colour-matched to standard slate tiles for a neat appearance. Proper installation is essential to ensure long-term performance and prevent water ingress; follow VELUX installation guidance carefully and ensure all components are fully secured and sealed according to the manufacturer's instructions.
- Professional-grade weatherproofing system
- Designed for reliable long-term performance
- Proper installation critical for water management
- Follow VELUX installation instructions precisely