How and where to use guide
VELUX Twin and Combination Flashings 134x140cm EBP UK08 0021B
Installation and positioning
These flashings are designed specifically for the UK08 0021B EBP roofing system and must be installed as part of your complete rooflight assembly. The 134 x 140cm dimensions are engineered to suit standard UK08 0021B installations on flat roof applications. Select twin configuration when installing two rooflights adjacent to one another, or combination configuration for single rooflight installations or mixed layouts. Position the flashing to create a continuous seal around the rooflight perimeter, ensuring the grade A timber sits flush with your EBP roofing membrane. Follow VELUX installation documentation to ensure correct alignment and fastening according to your specific roof construction.
- Verify your rooflight model is UK08 0021B EBP compatible before ordering
- Twin configuration for side-by-side rooflight installations
- Combination configuration for flexible single or multiple rooflight layouts
- Ensure flashing sits level and flush with surrounding roofing membrane
Watertight sealing and weather protection
The primary function of these flashings is to create a watertight seal that prevents water ingress around your rooflights. The grade A timber construction combined with the EBP-matched finish provides both durability and weather resistance on exposed flat roof, terrace and balcony applications. Water must be directed away from the rooflight frame and back onto the roofing membrane without pooling or penetrating joints. Proper installation ensures that rainfall, standing water and thermal movement do not compromise the seal. The timber finish is specifically matched to the EBP system to maintain consistent appearance whilst performing as an integral part of your weatherproofing strategy.
- Creates continuous watertight seal around rooflight perimeter
- Prevents water ingress on flat roofs, terraces and balconies
- Grade A timber resists weather exposure and thermal cycling
- EBP-matched finish integrates with your roofing system appearance
Maintenance and on-site handling
Inspect flashings regularly to ensure the seal remains intact and free from debris, particularly after heavy rainfall or seasonal weather changes. Keep gutters and drainage channels clear to prevent water pooling around the flashing perimeter. The grade A timber requires the same care as your EBP roofing system; protect from unnecessary foot traffic and avoid placing heavy loads directly on the flashing. During installation, handle the 134 x 140cm flashing carefully to prevent damage to edges or timber surfaces. Store on-site in dry conditions prior to installation to maintain the integrity of the timber and finish.
- Inspect seals regularly for cracks, gaps or water staining
- Clear debris and ensure drainage channels remain unobstructed
- Avoid unnecessary foot traffic or heavy loads on flashing
- Store in dry conditions before installation to protect timber quality