Glidevale Universal IN-LINE tile ventilators have been designed to provide an aesthetic and unobtrusive solution to roof space ventilation. They can be used at low or high level where the roof construction does not allow eaves or ridge ventilators to be used, or where complex roof shapes do not allow effective cross ventilation. Properties Ventilation area: 10,000mm2.Fire rating: AA fire rated.Colour: grey. Soil vent pipes & mechanical extraction Can be easily converted for use for use as SVP or mechanical extract terminals with the Glidevale SUA and flexi pipe. Tile compatibility Resolves the problem of tile profile matching with a single solution for the most flat tiles including the Lagan Flat, Marley Modern, Marley Duo Modern, Northstone Dondard or Penrose, Quinn Western Slate, Redland Mini Stonewold, Redland Mockbond Mini Stonewold, Russell Grampian, Russell Highland, Sandtoft Calderdale and the Sandtoft Dual Calderdale.