How and where to use guide
VELUX Standard Flashings 66x118cm EDP FK06 0000
Suitable applications and installations
This flashing is designed specifically for VELUX roof windows of 66×118cm dimensions. It is appropriate for pitched roof installations in both domestic properties and commercial buildings where compatible timber grades are present. The flashing suits timber construction graded F16, F24, and F32, which covers standard structural timber used in UK roof construction. The plastic construction provides durability and weather resistance suitable for exposed roof positions.
- Domestic pitched roof window installations
- Commercial roof window applications
- Use only with VELUX windows of 66×118cm size
- Compatible with timber grades F16, F24, and F32
- Available in multiple colours to match roofing finishes
Installation and positioning
The flashing must be installed around the perimeter of the VELUX roof window opening to create a secure weathertight seal. Correct positioning is essential to prevent water ingress into the building envelope. The flashing should be fitted before the window unit is fully secured, allowing the seal to be established around all edges. Experienced builders and DIY users familiar with roof window installation can undertake this work, though it is recommended to follow VELUX installation guidance specific to your window model.
- Install flashing around the complete window perimeter
- Position before final window securing
- Ensure weathertight seal on all edges
- Follow VELUX installation instructions for your specific window model
Maintenance and durability
The plastic construction of this flashing provides good durability and weather resistance in exposed roof positions. Periodic inspection is recommended to ensure the seal remains intact and free from debris. Clear any moss, leaves, or other material that may accumulate around the flashing edges, particularly in autumn and winter months. The plastic material should not require specialist maintenance beyond keeping the seal area clear and checking for any signs of damage or separation.
- Inspect periodically to ensure seal integrity
- Clear debris and moss from flashing edges
- Check for damage or separation, particularly after severe weather
- No specialist maintenance required for plastic material
Important limitations and considerations
This flashing is designed exclusively for VELUX roof windows of 66×118cm size. It is not suitable for other window dimensions or manufacturers. Correct timber grade compatibility is essential; verify that your roof structure uses F16, F24, or F32 timber before installation. The flashing creates a seal around the window but does not replace proper roof covering or underlayment. Installation should be undertaken by builders or experienced DIY users with knowledge of roof window fitting; improper installation may compromise the weathertight seal and allow water ingress.
- Use only with VELUX windows of 66×118cm dimensions
- Verify timber grade compatibility before installation
- Not a substitute for proper roof covering or underlayment
- Improper installation may compromise weathertightness