Abstract
ABSTRACT The configuration of balconies can affect the indoor environmental performance of dwellings, but there is not enough knowledge regarding how a balcony simultaneously impacts all the parameters of indoor environmental quality (IEQ). Therefore, this study aims to evaluate, for the first time, the impacts of different balcony configurations on IEQ. A comprehensive in-situ campaign was carried out on ten balconies and their contiguous rooms in a building in Porto. Air temperature, relative humidity, CO2, PM2.5 and TVOCs concentration, illuminance and sound pressure level were simultaneously monitored. The results show that an open balcony has a positive impact on hygrothermal conditions, controlled daylight illuminance, and reduced traffic noise by up to 10 dBa. The presence of a glazed balcony improved hygrothermal conditions in winter and increased the noise reduction by up to 15 dBA, but caused a reduction in the daylight of up to 64%. The rooms, in which the balcony was eliminated presented the worst hygrothermal conditions, lost the benefits of noise reduction and had an increase in daylight illuminance of up to 136%. It was also found that the impacts are interrelated and that a balcony influences the occupants’ behaviour by enhancing window opening.
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