Today, thermal comfort is defined as “that state of mind that expresses satisfaction with the thermal environment”. People take it for granted, but it is only feasible indoors. When working outdoors, thermal comfort is harder to achieve, especially in extreme weather conditions. It is found that in adverse conditions, the speed and accuracy of work, and productivity fall by 11%. The purpose of the thesis is to review the standards in this field, to investigate the relationship between outdoor work efficiency and heat loads, to examine how high daily temperatures affect productivity and health of workers, and whether permanent work in such conditions is recommended. Measurements performed in a month (15.07.2020-14.08.2020) showed only a handful of favourable days when outdoor work could be permanent. These days, work has been further hampered by rain. In order to make work as easy and comfortable as possible for workers who work in uncomfortable conditions on a daily basis, the employer should provide them with and enclosed space where favourable conditions can be provided and where workers can take refuge in strong sunlight and high temperatures. They should also have access to cold water and sunscreen. While providing workers with favourable working conditions, we also enable economic growth.
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