VELUX Window Flashings are essential for the installation of your roof window. The EBL 0021B Slate Flashing is suitable for installing two windows that are side by side with an 18mm gap for slates up to 8mm thick. The suitable roof pitch for this is a minimum of 15°. This flashing comes with the VELUX 10 year guarantee.
- Distance (gap) between Windows
- 18mm gap
- Roof Pitch
- Minimum of 15°