The Vilpe KTV -ventilation set is designed for ventilation of roof constructions and roof space. It can also be used as a drainage vent pipe. The ventilating tile is equipped with two protective grids to keep birds from getting into the roof space as well as a special membrane preventing water from coming in but letting air pass through unobstuctedly.
KTV -Maxi ventilation set is for special steel profilroofings, like Maxi -steel of Ruukki. The set includes the screws and the sealing for underlay. The standard colours are black, brown, green, grey, red and brick red.