The basis for recognizing a building as being life-threatening is not ensuring the possibility of evacuating people in the event of a fire, which includes in particular:

1) passage width, access or emergency exit, either the flight or landing of the staircase used for evacuation, less by over one third than that specified in the applicable technical regulations – construction,

2) długość przejścia lub dojścia ewakuacyjnego większą o ponad 100% from the one specified in the applicable technical regulations – construction,

3) występowanie w pomieszczeniu strefy pożarowej ZL I lub ZL II albo na drodze ewakuacyjnej:

– okładziny sufitu lub sufitu podwieszonego z materiału łatwo zapalnego albo kapiącego pod wpływem ognia, or a floor covering made of a readily inflammable material,

– okładziny ściennej z materiału łatwo zapalnego na drodze ewakuacyjnej, if two directions of evacuation are not provided,

4) niewydzielenie ewakuacyjnej klatki schodowej budynku wysokiego lub wysokościowego w sposób określony w obowiązujących przepisach techniczno – construction,

5) niezabezpieczenie przed zadymieniem dróg ewakuacyjnych wymienionych w obowiązujących przepisach techniczno – construction, in a certain way there,

6) brak wymaganego oświetlenia awaryjnego w strefie pożarowej ZL I, ZL II or ZL V or on the escape route leading from this zone to the outside of the building.

In the building, considered life-threatening, solutions should be applied to ensure compliance with fire safety requirements, in accordance with the principles set out in technical and construction regulations. Technical conditions constitute, that their fire safety regulations also apply to those existing buildings in use, that threaten people's lives. Means, that existing buildings, where there is no possibility of evacuating people in the event of a fire, should be subjected to appropriate reconstruction or a change in the way of use, so that the requirements of technical and construction regulations are met.

Yet, the building was considered a threat to people's lives, in which the escape routes were characterized by at least one of the features listed in the letter of the Chief Commander of the State Fire Service agreed with the Chief Building Supervision Inspector. Regarding the protection of escape routes against smoke, in high-rise and high-rise buildings, included in ZL I, ZL III and ZL V, these features included only the lack of the required devices to prevent smoke or to remove smoke from emergency staircases. With the entry into force of new legal regulations, these are:

-lack of the required anti-smoke devices in staircases and fire halls in high-rise buildings,

-lack of required smoke prevention devices or automatic smoke exhaust devices activated by a smoke detection system in staircases and in fire halls in high-rise buildings,

-no technical and construction solutions protecting horizontal escape routes against smoke,

– brak wymaganych urządzeń zapobiegających zadymieniu lub służących do usuwania dymu w szybie dźwigu dla ekip ratowniczych.