Fachada verde “a influência no conforto térmico entre espécies de trepadeiras”

Abstract

The term green facade is known in the architectural environment, being a combination between vegetation and buildings can contribute to the mitigation of the effects of heat islands in urban environment, providing better thermal comfort. As the thermal comfort of the environments is dependent on environmental variables, the understanding and the possible adjustments that aim to reduce the adverse effects of these variables can make the environment more pleasant; in addition to reducing the use of mechanical equipment for air temperature control and, consequently, reducing the consumption of electric energy for air conditioning. Therefore, it is of paramount importance that a prior study of the characteristics of the buildings and the vegetation that will interact with these structures is carried out. The objective of this study was to verify the influence of the indirect green facade on the thermal comfort of environments located in subtropical climate regions. Two species of climbing vegetation Pyrostegia venusta (Cipó de São João) and Jasminum polyanthum (Jasmin-dos-poetas) were used to analyze environmental variables. The data were obtained in the summer season, during eight consecutive days through the device term hygrometer, in the month of March 2021. A non-parametric Kruskal Wallis and Nemenyi analysis was used to compare averages between environments. The study showed that in the afternoon there is a difference of up to 2.4°C of air temperature and in the evening a difference of up to 1.9°C between the absence of green facade with the presence of green facade and a difference of up to 5.9%UR between treatments can be observed. However, among the climbing species the means were statistically equal by the Kruskall Wallis and Nemenyi test, with 5% significance. For the subtropical climate these species have viable conditions for a good performance in thermoregulation and thermal comfort in environments. Therefore, for best results studies can be attributed to different solar positions and species of creepers on the green facade, considering other seasons of the year.