This Lomanco universal base is for use on tiled or metal roofs with the Lomanco BIB12 turbine head. In brown, the colour of this turbine base allows the system to blend seamlessly into the roof and to go together perfectly with Lomancos brown BIB12 turbine head. The square base is applicable to roofing tiles or onto metal roofing and the base will adjust to roof pitches from 0 to 45 so it can be used on a range of domestic, commercial, residential and industrial roofs. Theres no fuss over the aesthetics of the turbine base as it comes in brick red, brown or black to easily blend with tiled or metal roofs. This base is easy to install and manufactured entirely from aluminium, so it wont rust, and it is extremely low maintenance. With a 2-year warranty from Lomanco, when installed correctly with the matching Lomanco turbine heads, the completed system will ventilate a mix of roofs, vent shafts, attics, production plants, cellars and more. The effective ventilation turbine will expel any unwanted moisture improving the life span of the roof and the building below.