This paper presents a proposal for a historic building thermal diagnostics algorithm for the example of a historical townhouse located in Lviv, Ukraine. The authors proposed a testing and diagnostics procedure that should precede design and renovation work associated with improving the energy standard of the buildings under discussion. The procedure was presented using a case study of a selected historical building. The scope of the study included an assessment of the building’s technical condition, thermal vision diagnostics, wall moisture, and water absorption in the context of protection against rain. Sample thermal and hygrothermal calculations were performed for a sample architecture element. The calculations included simulations of partition envelope behaviour after planned thermal retrofitting had been carried out. Performing the presented thermal diagnostics methods in three interlinked blocks (A, B, and C) shall ensure the proper thermal retrofitting of historical buildings in the context of their further occupancy.

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SummaryOn the example of plan and construction of The Fish Hatchery Centre in Łopuszna, near Nowy Targ, constructed during the Second World War, exact analysis was carried out concerning forms and regional stylistic of its buildings. During the occupation Polish architects generally were not able to operate freely. However, many of them used every opportunity to make good and valuable architecture and they succeeded in designing excellent buildings despite severe restrictions imposed by Germans. The Centre in Łopuszna and some other projects were significant constructions free from the influence of German architectural style. Polish architects consciously and consistently tried to design buildings according to the characteristic features of Polish architecture. In that way, on the basis of the appreciation of local culture, the great architecture was made, which certainly is a flagship example in Polish architecture.

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