In this paper, water liquid transport and storage parameters of UHPC with carbon steel fibers are determined. Comparative measurements with common concrete are done as well. The main aim of this experimental work is to obtain sufficiently accurate input data for the estimate of durability architectural concrete which are connected with water transport and its accompanying effects such as biological degradation or salt transport. On the basis of the experiments performed, it can be concluded that the analyzed UHPC is more resistant to penetration of liquid water into the structure and thus better resist of external conditions.