Selected problems of thermal insulation of historical buildings

There are problems with historical buildings when changing the thermal insulation properties of buildings. The Energy Efficiency Act exempted historic buildings from certification. Not all old, historic buildings have monument protection. It is necessary to take into account the above mentioned facts in case of renovation and reconstruction of an old building. Otherwise, a normal building is approached and a building of historical value is treated differently. Methods hidden insulation, which preserves the authenticity of cultural monuments and real estate in the heritage areas, is a current challenge of heritage practice. The sustainability of the operation of historic buildings ultimately means the preservation and appropriate use of the heritage fund. Fortunately, the list of such interventions that do not jeopardize the monumental values or the use of the building is gradually increasing. This is mainly due to modern, increasingly sophisticated materials and technologies. In this paper we offer a basic overview of the most frequently used and practice-tested interventions in historical buildings, but we focus on details.