The proper ventilation of the conservatoryies is one of the most important viewpoints which are practical to consider during the design. The Roofvent type motor-driven roof-ventilation that can be built-in to the roof and the As9 and Junior150 lane ventilation which provide the air draw-in guarantee the proper air change in the room. Based on the inner air cubic meter the ventilations of needed size and performance can be chosen from a chart. The roof-ventilation is electronically controlled by a switch that is completed with several sensors. The lane ventilations can be manually opened and closed. It can be installed below and above the glass or between do divider ribs. Every part of the ventilations is available in the same color as the conservatory.