Natural ventilation and fresh air combined with light helps making a good indoor climate. Research has shown that childrens' ability to learn increases with a good indoor climate. Similarly, a good indoor climate helps creating well-being in offices, production areas, shopping areas, museums, private housing etc.All Vitral products can be supplied with opening actuators, controls and wind and rain sensors. In the panel based solutions, A98, A74 and VRS, up to every second panel can be made openable – and that without any extra costs (besides the actuator, of course).Furthermore, opening actuators can be re-fitted if the requirements to the building are changing over time. Only Vitral can re-fit actuators after installation.Please contact Vitral for advice about your specific project.