IX Regionalna konferencija Industrijska energetika i zaštita životne sredine u zemljama Jugoistočne Evrope (str. 397-411)
АУТОР(И) / AUTHOR(S): J. P. Glišić, T.S. Bajc 
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DOI: 10.46793/IEEP24.397G
САЖЕТАК / ABSTRACT:
This paper presents an analysis of the possible application of green roof on an existing educational building with a flat roof, through an analysis of the degree of energy efficiency improvement and CO2 emission reduction. The goal of the paper is to show, through the preparation of the energy efficiency report and Energy passport, the green roof as an exceptional tool for ensuring sustainable development, decarbonization and improving the quality of life of people in urban areas. This is important because urban areas have limited space for green infrastructure and high level of pollution. The research also clearly defines the impact of green roof installations on energy savings with the share for heating of 15% and air quality contributing to the about 6% lower CO2 emission, with attached methodological explanations for their application. Economic analysis and profitability of the proposed project are also provided as an additional indication of the relevance of this type of practice. In the economic analysis, the key indicators of the profitability of the investment are studied, in this investigation, the net present value (NPV) and the payback period (PBP) of the green roof project. PBP of 22 years was obtained, but it should not be considered separately of the other benefits of green roofs, which are not measurable in money, such as lower pollution in cities, habitats for pollinators, additional green areas for people, prevention of floods, etc.
КЉУЧНЕ РЕЧИ / KEYWORDS:
energy savings, building renovation, green roof, cost analysis, decarbonization
ACKNOWLEDGMENTS
This work was supported by the National Research Projects of Republic of Serbia Ministry of Education, Science and Technological Development, Project of Technological Development under Grant [Contract number 451-03-65/2024-03/200105 from 05.02.2024.].
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