The roof and façade are parts of a building that are placed under particular strain by the weather. Sun, wind, rain and snow, as well as constant moisture (in wooded or shaded locations), have an impact on the building shell. Dirt deposits (e.g. dust, foliage or pine needles) can impair the function and the appearance of the roof, the façade or the roof drainage (e.g. blockage). It is therefore advisable to check roofs, façade cladding and roof drainage systems (gutters and downpipes) at regular intervals. This way, any emerging changes, damage or dirt can be identified and remedied in good time. You can find more information on cleaning and maintenance here.