Surface temperature analysis of conventional roof and different use forms of the green roof

Surface temperature analysis of con-ventional roof and different use forms of the green roof. Increasing urban populations raises a number of problems and risks that are strengthened by observed and projected cli-mate change. An increase in green areas (so--called green infrastructure) has turned out to be an effective means of lowering tempera-ture in the city. Green roofs can be one of the possible measures leading to achieving this aim. The aim of the study was the analysis of temperature changes of different roof surfac-es (conventional roof, board, intensive roof substrate without plant cover, substrate cov-ered with plants (shrubs). Studies on compar-ing the temperature between a conventional roof and green roofs were carried out in the period from April to September 2015 on the roof of the building of the Faculty of Mod-ern Languages, University of Warsaw. The measurement was performed using the FLIR SC620 thermal imaging system. As a result of the tests, it was found that in the summer months the differences between the tempera-ture of the green roof and the conventional roof amounted to a maximum of 31.3°C. The obtained results showed that the roof with vegetation can signifi cantly contribute to the mitigation of the urban heat island phenom-enon in urban areas during summer periods.