Sloping Roof AOV Top Hung
Top hung window opened and closed proportionally by a chain or linear actuator to enable natural ventilation typically within the atria.
Linear actuators are more commonly installed. Any motor specified must provide sufficient power to support the maximum load that occurs when the window is opened fully. Chain actuators can be used but great care must be taken specifying a suitable force. Operating conditions must also be addressed (i.e wind & snow etc.)