How and where to use guide
VELUX Recessed Flashings 94x140cm EDN PK08 0000
Suitable applications and building types
This recessed flashing is specifically engineered for timber-framed buildings where rooflights are installed flush with the roof plane. It works with VELUX rooflights up to 94cm wide by 140cm long and is ideal for loft conversions, attic spaces, and traditional timber frame construction where the rooflight opening sits within the timber structure. The flashing is designed for dry conditions only, making it suitable for interior-facing applications and protected roof environments rather than exposed or wet-weather situations.
- Timber-framed buildings and loft conversions
- VELUX rooflights maximum 94cm wide × 140cm long
- Dry conditions and protected roof environments only
- Interior-facing installations where water exposure is minimal
Installation and fixing
The flashing features a secure fixing system that creates a tight seal around the rooflight opening. Installation involves positioning the treated timber flashing around the rooflight aperture within the timber frame structure and securing it using the integrated fixing points. The natural timber finish allows the flashing to blend with traditional timber frame construction. Ensure the rooflight dimensions do not exceed 94cm width or 140cm length, and verify compatibility with your specific VELUX rooflight model before installation.
- Check rooflight dimensions are within 94cm × 140cm maximum
- Confirm VELUX rooflight compatibility before fitting
- Use the secure fixing system to create a tight seal
- Install within timber frame structure as designed
Limitations and maintenance
This flashing is designed for dry conditions only and must not be exposed to persistent moisture, heavy rainfall, or wet environments. Do not use in exposed roof positions or where water ingress is likely. The treated timber construction requires minimal maintenance in dry conditions, but the natural finish should be monitored for any signs of moisture damage or deterioration. If the flashing is exposed to damp conditions or water penetration occurs, it may fail to provide adequate weatherproofing.
- Dry conditions only – not suitable for wet or exposed applications
- Monitor natural timber finish for moisture damage
- Do not use in areas with high water ingress risk
- Unsuitable for exposed roof positions or heavy rainfall exposure
On-site tips
Before installation, inspect the treated timber for any damage or defects. Ensure the rooflight opening in the timber frame is accurately sized and square to receive the flashing properly. The secure fixing system must be fully engaged to guarantee a tight seal – do not attempt installation without all fixing points secured. Store the flashing in dry conditions on site and protect it from weather exposure until installation is complete. If working in damp conditions, allow adequate drying time before fitting to prevent moisture trapping.
- Inspect timber for damage before installation
- Ensure rooflight opening is accurately sized and square
- Engage all fixing points fully for a tight seal
- Store in dry conditions and protect from weather until fitted