Profiled roof tile vent to enable ventilation directly into a roof space or connect to a ducted ventilation system.Uses: On roofs with Mini Castellated roof tiles, Enables ventilation directly into a roof space, Can also be connected to a ducted ventilation system inside the building. Features and Benefits: Suitable for roofs with a minimum pitch of 17.5°, Free ventilation area of 5,000mm2. Compatibility: Mini Castellated small format tiles from all major manufacturers including: Marley Ludlow Plus Redland 49 Sandtoft Standard Pattern Forticrete V2