“…There are several different types of tanks that depend on the geometric and structural characteristics, the quality of primary steel material from which they are made, place and mode of installation, setup mode, applications and more. Most widely used tanks are in the form of a sphere, cylinder or rectangular shapes, that were the subject of study earlier works [1], [2], [3]. In this paper, special attention will be paid to the rehabilitation of the roof structure of steel tanks of cylindrical shape, whereas the analysis of the influence of the load and the designing elements of the roof construction was carried out according to European standards [4], [5], [6], [7], [8].…”