The aim of the master's thesis is to analyze the thermal comfort of users of residential buildings in the Municipality of Koper (MOK). The research was conducted in five phases: 1. A standardized questionnaire on thermal environment perception and user behavior during discomfort; 2. Identification of individual characteristics and perception of users; 3. Measurements of thermal environment parameters in MOK residential buildings during winter and summer; 4. Statistical analysis and comparison of environmental data and thermal perception; 5. Comparison with legislation, recommendations, and studies from other climates. Based on the results, recommendations were proposed for stakeholders involved in building design and construction. The methodology included a questionnaire, measurements, statistical processing, and comparisons with regulations and existing studies. The questionnaire was completed 601 times across sixteen buildings. Measurements of indoor air temperature and relative humidity showed that these often fall short of optimal thermal comfort. Statistical analysis revealed a strong correlation between discomfort and deviations from comfort temperature. The Thermal Sensation Vote (TSV) index analysis shows that the average desired temperature in winter is 21.0 °C. The highest percentage of respondents (97%) feel comfortable between 19.5 and 20.0 °C. Griffith’s method yields a comfort temperature of 19.8 °C. TSV values are consistently higher than PMV (Predicted Mean Vote). A key finding is that men under 40 and women over 40 deviate the most from the average thermal perception. The study concludes that building efficiency improves when thermal characteristics of the local population are considered. The findings are valuable for new construction, renovations, and legislative updates.
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