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Department School of Civil Engineering and Geodesy, Academy of Technical and Art Applied Studies Belgrade , Belgrade , Serbia
Department School of Civil Engineering and Geodesy, Academy of Technical and Art Applied Studies Belgrade , Belgrade , Serbia
Department School of Civil Engineering and Geodesy, Academy of Technical and Art Applied Studies Belgrade , Belgrade , Serbia
The energy certification of buildings in Serbia has brought numerous changes, related to the way new buildings are designed, but also a significant need for energy rehabilitation of existing buildings. The aim of this paper is to examine the effectiveness of the most commonly used facade assemblies, considering that the facade of a building is an essential link in the chain of elements that make up an energy-efficient building. In this paper, the five most commonly used facade assemblies, which are applied during the construction of multi-family residential buildings in Serbia, are analyzed, along with the materials used in them. Their economic aspect was also analyzed, along with the mandatory comparative calculation of the energy efficiency of the residential building and the application of the URSA-Building Physics 2 softver, in accordance with the Rulebook on Energy Efficiency of Buildings. The facade assembly of the ventilated facade with natural stone cladding, as well as the contact facade with distinct facade cladding, was analyzed. In this context, the economic aspect of the application of different facade assemblies was also analyzed. It was observed that for the same energy class of the facade wall, the investment can be significantly different and be 5.86 times higher per square meter of the surface of the facade wall. This research is significant considering that the energy rehabilitation of existing buildings is considered as a necessary step towards reducing the energy needs for heating buildings in the Republic of Serbia, and that it is necessary to take measures to reduce the energy required for heating buildings.
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