As one of few companies, Aluprof is through with limitations in fire constructions: the glazed fire-resistant façade does not have to be a fixed construction devoid of opening elements any more. The MB-78EI system door, opening both inwards and outwards, may be used. The so-called technical windows, based on the MB-78EI system, are also available. Constructions of this type, with a single- and double-leaf door in the MB-SR50N EI system façade, made in accordance with either EI30 or EI60 class, were successfully tested in the notified laboratory Fires in Slovakia. See below for photos of the tests.