Performance tested to AS/NZS 4740:2000 Louvreclad Nexus Series Drainable is a 125mm pitch extruded aluminium louvre that achieves Class C 80% effective rain defence, Class 2 aerodynamics, 50% free open area with an additional drainage channel to mitigate the cascade effect. The weather lip combined with an additional weather channel enables rain catchment and water drainage for each blade individually to be discharged at the bottom of the louvre through the mullions.This feature provides excellent drainage to mitigate the cascade effect and ensures maximum rain defence.