TY - JOUR T1 - REGULATION ON TECHNICAL CONDITIONS IN REFERENCE TO HISTORICAL BUILDINGS A1 - Wojciech Rogala JO - Acta Sci. Pol. Architectura} VL - 16 IS - 2 SP - 16 Y1 - 2017 UR - https://www.architectura.actapol.net/volume16/issue2/_2_.pdf SN - 1644-0730 KW - insulation from the inside, thermo-modernization of historical buildings, requirements for historical buildings, energy performance of historical buildings AB - An essay raises the issue of thermal modernization of historical buildings in relation to tightening the regulations on energy consumption. Two storeys of multi-family housing adapted for office purposes were examined. Calculation were made for three variants of thermal insulation from the inside – mineral wool on wood frame, mineral insulation boards and polyurethane boards with plasterboard. All variants cover heat transfer coefficient requirements defined in regulations for the years 2013, 2014, 2017 and 2021. The analysis was based on the NPV method and is supplemented by the cost of the loss of usable space. An analysis of the 15-year period indicates, that thermo-modernization from the inside in the examine housings would not be cost-efficient after tightening the thermal regulations in 2014, 2017 and 2021. ER -