How and where to use guide
VELUX Standard Flashings 78x98cm EDP MK04 0000
Suitable applications and roof types
This flashing is specifically designed for flat roof installations featuring VELUX Flat Rooflights. It works on flat roofs with a pitch up to 2m and is compatible with timber roof structures graded FSC 32 or above. The 78x98cm size fits standard VELUX flat rooflight dimensions, making it suitable for both new installations and replacement work on residential and commercial properties.
- Flat roofs with pitch up to 2m
- Timber grades FSC 32 and above
- Standard VELUX Flat Rooflight installations
- Residential and commercial applications
Installation and fitting
The flashing should be positioned around the rooflight opening to create a complete watertight seal between the rooflight frame and the roof structure. Ensure the roof timber is sound and of the correct grade before installation. The flashing must be securely fixed to prevent water ingress and to maintain the integrity of the seal. Proper alignment with the rooflight dimensions is essential for effective weatherproofing.
- Position flashing around rooflight opening for complete seal
- Verify roof timber grade is FSC 32 or above
- Secure flashing firmly to prevent movement
- Align carefully with rooflight dimensions
Material properties and durability
The UV-stabilised PVC construction provides excellent resistance to weathering and ultraviolet degradation, ensuring the flashing maintains its integrity over extended periods of weather exposure. PVC is a durable, low-maintenance material that does not require regular treatment or sealing. The flashing will perform reliably in typical UK weather conditions including rain, wind, and variable temperatures.
- UV-stabilised PVC resists weathering and UV damage
- Low-maintenance material requiring no regular treatment
- Durable in UK weather conditions
- Maintains watertight seal over time
On-site tips and limitations
This flashing is designed specifically for VELUX Flat Rooflights and the 78x98cm size; ensure you have the correct rooflight model before ordering. The flashing is suitable only for flat roofs with pitch up to 2m; steeper pitched roofs require alternative flashing solutions. Check that your roof timber meets the FSC 32 minimum grade requirement. Store the flashing flat and protected from direct sunlight before installation to prevent any UV exposure damage during storage.
- Confirm VELUX Flat Rooflight compatibility before purchase
- Not suitable for roofs with pitch exceeding 2m
- Verify timber grade FSC 32 or above on site
- Store flat and protected from sunlight before fitting