During re-costruction of the house No. 848 on Na Příkopě 6 street, Prague 1 Sipral supplied access systems to the internal part of glazed atrium structure and to the part of vertical peripheral walls. This access is solved with a Rostek one-rail access system RS 110. This is an aluminum profile with a varnished surface, that is suspended under the skylight steel structure to which it is attached with steel anchoring brackets with the same surface treatment of powder-baking varnish. On the structure there are three tracks suspended, total size of a profile is approx 27 m (3x9 m). There are profiles without bends.
Each of the three one-rail tracks is equipped with a manually driven trolley that is non-removable. For manually driven movement there are three trolleys used on the tracks. Each of them is equipped with two eyes to attach a climbing rope since according to the specification the cleaning is considered to be done only with climbing technique. Each trolley is equipped with a screw brake so it is possible to stop on any place of the one-rail track and fix against movement sideways.