How and where to use guide
EDL SK08 2000 VELUX Pro+ flashing set EDL, single installation 1140 mm x 1398 mm Aluminium, dark grey
Typical applications and installation context
This flashing set is designed for single roof window installations in domestic and light commercial properties. It is commonly used in loft conversions, new-build roof installations, and refurbishment projects where additional daylight and ventilation are required. The flashing accommodates standard UK roof pitches and works with conventional tile or slate coverings. Installation should be carried out by a competent tradesperson familiar with roof window fitting, as correct positioning and sealing are critical to long-term weather performance.
- Loft conversions and attic room installations
- New-build residential roof window openings
- Refurbishment and retrofit projects
- Pitched roofs with tile, slate, or similar coverings
- VELUX Pro+ window systems only
Installation and positioning
The flashing must be installed before the window frame is fitted and after the roof opening has been prepared to the correct dimensions. Position the flashing so that the upper edge sits beneath the roof covering above the window opening, whilst the lower edge overlaps the covering below. This overlap ensures water runs down and away from the window frame. The flashing should be secured according to VELUX installation guidance, typically using stainless steel fixings to prevent corrosion. Ensure all joints and edges are sealed with appropriate roof sealant to maintain the weather-tight integrity. The aluminium construction will not corrode, but all fixings and sealants must be compatible with the material.
- Install flashing before fitting the window frame
- Position upper edge beneath roof covering above the opening
- Ensure lower edge overlaps covering below for water drainage
- Use stainless steel fixings to prevent corrosion
- Seal all joints with compatible roof sealant
- Follow VELUX Pro+ installation instructions for your specific window model
Maintenance and durability
The aluminium construction with dark grey finish is designed to withstand typical UK weather conditions without deterioration. Periodically inspect the flashing and sealant, particularly after severe weather, to ensure the weather-tight seal remains intact. Check that roof covering around the flashing has not shifted or been damaged, as this can compromise the seal. If sealant becomes cracked or degraded, it should be replaced promptly. The aluminium itself requires no special maintenance, though debris such as moss or leaves should be cleared from around the flashing to maintain proper water drainage.
- Inspect sealant annually and after severe weather
- Replace degraded sealant immediately to maintain weather-tightness
- Clear debris and moss from around the flashing
- Check roof covering has not shifted around the installation
- Aluminium requires no protective treatment or painting
Limitations and on-site considerations
This flashing set is designed specifically for VELUX Pro+ windows of the stated dimensions (1140 mm × 1398 mm) and cannot be used with other window systems or sizes. Installation requires careful measurement and preparation of the roof opening to ensure correct fit and weather-tightness. The flashing alone does not guarantee weather protection; proper installation technique, compatible sealants, and correct roof covering overlap are essential. This product is not suitable for flat roofs or non-standard roof constructions. Professional installation is strongly recommended to ensure compliance with building regulations and warranty requirements.
- Compatible with VELUX Pro+ systems only
- Requires precise roof opening preparation
- Not suitable for flat roofs or non-standard constructions
- Professional installation recommended for warranty compliance
- Sealant selection must be compatible with aluminium