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Potentials for a complex and integrated refurbishment of post-war housing stock of Serbia

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Abstract

This paper presents the possibilities for energy retrofitting of existing multi-family residential buildings constructed during the mass construction period in Serbia, which exhibit high energy consumption for heating. The research focuses on determining approaches to achieve deep energy renovation goals through interventions on the building envelope. The study analyzes the application of a methodology of complex and integrated refurbishment by adding volumes (increasing usable space) to existing multi-family buildings to achieve high energy efficiency, modernize residential units, and improve vertical building communications. The study includes analysis of two selected residential multi-family buildings of different types constructed during the same period. The research examines the energy performance of the existing state of selected buildings and two variants of improving the building envelope’s energy performance: refurbishment scenario 1 (without volumetric additions) and refurbishment scenario 2 (with volumetric additions). Current energy regulations in Serbia only analyze energy consumption for heating, limiting the calculation of total energy consumption. Therefore, this study calculates heating energy consumption and determines the energy class based on the results. Based on the Knaufterm simulations, the energy savings for heating energy consumption compared to the existing state are in case study 1 (RS1 73.5%, RS2 79.5%) and in case study 2 (RS1 68.3%, RS2 77.3%). Furthermore, the research explores the application of prefabricated lightweight timber assemblies in energy refurbishment that meet not only energy but also broader environmental requirements derived from the concept of sustainable architecture.

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Notes

  1. Knaufterm is the commercial software that is the most used calculation tool for calculating energy performance and determining the energy class of a building in Serbia.

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Authors and Affiliations

  1. Department of Architectural Technologies, Faculty of Architecture, University of Belgrade, Belgrade, Serbia

    Bojana Lević, Ljiljana Đukanović & Ana Radivojević

  2. Department of Architecture, Faculty of Engineering, University of Strathclyde, Glasgow, UK

    Branka Dimitrijević

Authors
  1. Bojana Lević
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  2. Ljiljana Đukanović
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  3. Ana Radivojević
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  4. Branka Dimitrijević
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Corresponding author

Correspondence to Bojana Lević.

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Conflict of interest

The authors declare no competing interests. This research is part of the thematic research of the first author (Bojana Lević) during the past two years of her PhD studies. During the past two years, the first author conducted research under the mentorship of the other three authors listed. Additionally, the other three authors have been involved in research on this topic throughout their years of scientific research.

Professor Ana Radivojević and Professor Ljiljana Đukanović participated in the project “Energy Efficiency of Buildings - Assessment of Energy Performances of the Serbian Building Stock” (Faculty of Architecture, University of Belgrade and GIZ, 2010–2013), with published results in the monograph series “Residential buildings in Serbia,” Volumes 1–3.

Professor Ana Radivojević, Professor Ljiljana Đukanović, and Professor Branka Dimitrijević participated in the Erasmus+ CBHE Project: “Creating the Network of Knowledge Labs for Sustainable and Resilient Environments – KLABS” (2016–2018), with published results in the publication series “KLABS book series: Reviews of Sustainability and Resilience of the Built Environment for Education, Research and Design.”

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Lević, B., Đukanović, L., Radivojević, A. et al. Potentials for a complex and integrated refurbishment of post-war housing stock of Serbia. Energy Efficiency 16, 93 (2023). https://doi.org/10.1007/s12053-023-10171-z

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  • DOI: https://doi.org/10.1007/s12053-023-10171-z

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