From Velux
VELUX flashing kits are designed to integrate your VELUX roof window perfectly into the roofing material, ensuring that your window is completely weathertight, whatever the conditions. We offer a range flashings designed for different roofing materials and provide two options for installation height. VELUX EDL Slate Flashing For standard installation of roof windows into slate up to 8mm thick Not for interlocking slate Suitable for 15°-90° roof pitches