Influence of natural ventilation on the thermal comfort of occupants in buildings with cool and green roofs
DOI:
https://doi.org/10.46421/entac.v20i1.5694Keywords:
Thermal comfort, Residential building, Green roof, Cool roof, Computer simulationAbstract
Natural ventilation is common in Brazilian residential buildings, either due to cultural factors or lack of air-conditioning systems. This study aims to investigate the influence of the natural ventilation configuration on the thermal comfort of occupants in buildings with conventional, cool and green roofs. Three configurations were evaluated in the climate of Florianópolis/SC: ventilation during occupied periods, from morning to night and night-time ventilation in the long-term rooms. The percentage of hours in thermal comfort was calculated using outputs from a computer simulation using the EnergyPlus programme. The results showed that the natural ventilation configuration that provided the highest percentage of hours in thermal comfort during the year varied depending on the room analysed, mainly due to the period of occupation. Regardless of the natural ventilation configuration, the green roof provided the highest percentage of comfort hours. In this context, the study contributes to understanding the influence of natural ventilation patterns in buildings with different roof types.
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