Micro-ventilation in the Roto NT system ensures regular air exchange through a small ventilation opening in the bathtub position.
The double-opening window component, consisting of a single element, can then be mounted effortlessly, inserting simply without a template near the safety lock.
If it should be a bit more comfortable, then the adjustable micro-ventilation is exactly what you need: often the windows in the storage areas or the laundries are always used in the batting position, which is not always optimal from the point of view of the temperature. The 2/3-step adjustable position of the microventile allows a lower battery angle, as an alternative to the standard swiveling opening.
This way, you can get fresh air at all times without opening and closing the window all the time.