How and where to use guide
VELUX Standard Flashings 94x140cm EDP PK08 0000
Suitable applications and rooflight compatibility
This flashing is designed specifically for VELUX timber rooflights in the PK08 size range, making it suitable for smaller to medium rooflight installations. Before purchasing, verify that your rooflight model is compatible with the PK08 specification and that your roof timber grade matches one of the three compatible grades: F16, F24, or F32. Using the correct flashing grade for your timber ensures proper performance and prevents potential water damage.
- Check your VELUX rooflight documentation to confirm PK08 compatibility
- Verify your roof timber grade is F16, F24, or F32 before installation
- Suitable for domestic rooflight installations on pitched roofs
- Not suitable for rooflights requiring larger or smaller flashing sizes
Installation and positioning
The flashing must be positioned to create a complete seal around the rooflight opening, bridging the gap between the rooflight frame and the roof structure. Proper installation is essential to prevent water ingress. Position the flashing so it overlaps the roof covering on all sides and sits flush against the rooflight frame. Ensure the flashing is fully secured and seated correctly before proceeding with any roof covering installation or completion.
- Install the flashing before laying final roof covering materials
- Ensure complete overlap with existing roof covering on all sides
- Secure the flashing firmly to prevent movement or gaps
- Check for any gaps or misalignment that could allow water penetration
Maintenance and durability
The PVC construction provides durable weather resistance and requires minimal maintenance. Periodically inspect the flashing, particularly after severe weather, to ensure it remains properly sealed and free from damage. Clear any debris such as leaves or moss that may accumulate around the rooflight perimeter, as this can trap moisture and compromise the seal. The PVC material is resistant to UV degradation and weathering, making it suitable for long-term outdoor exposure.
- Inspect the flashing annually and after severe weather events
- Clear debris and moss from around the rooflight perimeter
- Check that the seal remains intact and free from cracks or splits
- Clean with mild soap and water if required; avoid abrasive cleaners
Important limitations and safety notes
This flashing is designed only for use with VELUX timber rooflights and the specified timber grades. Do not use this flashing with other rooflight brands or with timber grades outside the F16, F24, F32 range, as this may result in inadequate sealing and water ingress. Installation should be carried out carefully to avoid damaging the rooflight frame or roof structure. If you are uncertain about timber grading or rooflight compatibility, consult the rooflight manufacturer's instructions or seek professional advice before installation.
- Confirm timber grade compatibility before installation
- Not suitable for non-VELUX rooflights or alternative rooflight brands
- Do not install if the flashing is damaged or deformed
- Seek professional installation advice if unsure about compatibility or technique