There is a rail ventilation system in the greenhouse and service areas. Specially produced galvanized steel will be mounted on the roof using 32x1.5 mm push-pull pipes. The window opening is a maximum of 44 degrees. The ventilation system is installed on a truss. Integrated gear racks and pinions will clamp around the column and the torque tube will be under the grooves. Rails will be moved with galvanized drive shafts. The ventilation system is suitable for carrying the extra weight from the pest cover.