How and where to use guide
VELUX Recessed Flashings W/ Installation Productions 78x118cm EDN MK06 2000
Typical applications and where to use
This recessed flashing is intended for timber window and door frame installations where weather protection is critical. The 78x118cm size suits common frame dimensions found in both new build construction and renovation projects across residential and light commercial properties. Use this flashing where timber frames meet external walls, particularly in exposed locations subject to wind-driven rain. It is suitable for pitched roof installations and vertical wall applications where a recessed detail is specified in the building design.
- New build timber window and door installations
- Renovation and retrofit projects with existing timber frames
- Exposed locations requiring enhanced weather protection
- Standard frame sizes matching 78x118cm dimensions
- Both pitched roof and vertical wall applications
Installation and usage
The recessed flashing must be positioned to integrate with the timber frame during installation, creating a continuous weather-tight seal around the window or door perimeter. Ensure the flashing sits correctly within the recessed detail of the frame before fixing. The plastic material should be handled carefully to avoid damage during transport and on-site storage. Position the flashing so that water is directed away from the timber frame and into the external drainage path. Proper alignment is essential to prevent gaps that could allow water penetration.
- Position flashing within the recessed frame detail before final fixing
- Ensure continuous seal around entire window or door perimeter
- Direct water flow away from timber frame into external drainage
- Handle plastic material carefully to avoid cracking or distortion
- Check alignment before securing to prevent gaps or misalignment
Maintenance and durability
The EDN MK06 2000 timber grade specification provides resistance to rot and insect damage, delivering extended service life in UK weather conditions. Inspect the flashing periodically, particularly after severe weather, to ensure the seal remains intact and water is draining correctly. Clear any debris or blockages from drainage paths around the flashing. The plastic construction requires no painting or staining but should be kept clean to maintain visibility of any potential damage. Replace the flashing if cracks, splits, or separation from the frame are observed.
- Inspect flashing regularly for cracks, splits, or separation
- Clear debris and blockages from drainage paths
- No painting or staining required for plastic material
- Check water drainage is functioning correctly after heavy rain
- Replace if damage is observed to maintain weather-tight seal
On-site tips and limitations
Store the flashing flat and protected from direct sunlight before installation to prevent warping or discolouration. The 78x118cm size is fixed and cannot be cut or modified on site, so verify frame dimensions match this specification before ordering. Ensure the building envelope is properly prepared and the frame opening is square and level before installing the flashing. Do not use this product in applications where the frame size differs significantly from the stated dimensions, as this will compromise the weather-tight seal. Coordinate installation timing with other building elements to ensure the flashing is protected from damage during subsequent trades.
- Store flat and protected from direct sunlight before use
- Verify frame dimensions match 78x118cm specification
- Ensure frame opening is square and level before installation
- Do not cut or modify the flashing on site
- Protect from damage during subsequent building works