Fixing and buying guide
VELUX Standard Flashings 55x78cm EDW CK02 0000
Product compatibility and suitability
This flashing is engineered exclusively for VELUX EDW rooflights and will not fit other rooflight models or manufacturers. The 55 x 78cm dimensions are fixed and match the standard EDW rooflight opening size. Your roof structure must use timber graded F16 or above to ensure the flashing performs correctly and maintains its watertight seal over time. Check your building plans or consult your surveyor if you are unsure of your timber grade.
- Compatible only with VELUX EDW rooflight range
- Fixed dimensions of 55 x 78cm
- Requires timber grade F16 or above
- Pitched roof installations only
What is included and material
You receive one standard EDW CK02 flashing unit. The flashing is manufactured from high-quality plastic that resists weathering, UV exposure, and temperature fluctuations. This durable construction ensures the seal remains effective throughout the product's lifespan without cracking, warping, or degrading under normal roof conditions.
- Single flashing unit per pack
- High-quality plastic construction
- Weather and UV resistant
- Designed for long-term outdoor performance
Pre-installation checks
Before ordering, verify that your rooflight is a VELUX EDW model by checking the rooflight frame or your installation documentation. Measure or confirm the rooflight opening dimensions match 55 x 78cm. Inspect your roof timber for signs of rot, woodworm, or structural damage; the timber must be sound and graded F16 or above. Ensure your pitched roof pitch is suitable for rooflight installation and that the surrounding roof structure is in good condition. If you are replacing an existing flashing, remove the old unit carefully and check the rooflight frame for any damage before fitting the new flashing.
- Confirm VELUX EDW rooflight model
- Check rooflight opening dimensions are 55 x 78cm
- Verify timber grade F16 or above
- Inspect roof structure for damage or rot
- Remove old flashing carefully if replacing
Ordering and installation support
Order this flashing only when you are ready to install your VELUX EDW rooflight or replace an existing flashing. Refer to the VELUX installation instructions supplied with your rooflight for detailed fitting guidance. The flashing must be installed by someone competent in roofwork; if you are unsure, engage a qualified roofer. Proper installation is essential to maintain the watertight seal and prevent water damage to your roof structure and interior.
- Order when ready to install or replace
- Follow VELUX installation instructions
- Consider professional installation if inexperienced
- Correct fitting is critical for waterproofing