This also applies to the façade, which, as the external part of the building, is particularly exposed to weather conditions and mechanical damage. As a result of the reaction to the above stimuli, the façade may become deformed. When it is not properly designed and constructed, i.e. there are no elements ensuring its static work, serious defects can occur in the whole structure.

In order for the outer wall to freely undergo various pressure and load changes, you should make expansion joints, i.e. several millimeter gaps between larger wall fragments. The choice of the place where the expansion joints will be placed depends on many factors, including the dimensions of the façade and its shape. They are necessary because even a different degree of insolation of one of the walls will make it work differently than the neighboring wall. As a result, it may lead to scratches and cracks.