This slip plain roof tile vent is designed to ventilate a roof space directly or connect to a ducted ventilation system inside the building. Fitting with two pieces of plain tile creates a discreet, continuous finish when viewed across the roof. Its three drainage channels manage rainwater around the opening, while the lightweight, uv-stabilised polypropylene construction suits long-term roof exposure and straightforward handling. Features & benefits: suitable for plain tiled roofs with a minimum pitch of 35 . Provides a free ventilation area of 6,100mm . Fits with two pieces of plain tile to create a discreet finish and continuous roof appearance. Three drainage channels direct rainwater back onto the roof and away from the vent opening. The internal grille helps keep out large insects, vermin and debris. Uv-stabilised materials are suitable for continuous exposure to sunlight. Lightweight construction supports easier handling and installation. Compatible with major plain tiles including redland rosemary, marley plain, russell traditional plain and sandtoft humber plain. Rtv-kit1, the optional 110mm flexi-pipe, can aid connection to a ventilation duct or soil vent pipe. The rtv-adp plain adaptor enables connection to 110mm ductwork and can pair with rtv-admulti for 100mm, 110mm, 125mm or 150mm duct sizes. The coloured top and black base are both manufactured from injection-moulded polypropylene, with the top uv stabilised. Colour: red