Profiled roof tile vent to enable ventilation directly into a roof space or connect to a ducted ventilation system. Uses • On roofs with Castellated profile roof tiles • Enables ventilation directly into a roof space • Can also be connected to a ducted ventilation system inside the building. Features and Benefits: Marley Ludlow Major, Redland Renown, Sandtoft Lindum, Russel Cheviot, Lagan Square Top.