Seeking for the nearly complete glass continuity in the façade has led to a solution for the fire spreading interruption between floors that is solved some centimetres offset from the glass pane.
That way, the number of joints in the façade is reduced, and so the need for profiles. The cutting does not show so evidently what is happening in the back of the façade. This gap between the glass and the sectoring panel can be used for placing a rolling blind or indirect lighting. An appropriate illumination may permit blurring the bottom limit of this sectoring element.