Abstract
To quantitatively understand the effects of building greening, which involves greening of the walls and roof tops and is attracting attention as a means of mitigating the heat island phenomenon in cities and improving the thermal environment, a computational fluid dynamics (CFD) analysis was conducted using an actual district as a model to numerically analyze the changes in temperature and humidity in the district by building greening. The analysis showed that greening of the ground surface, rooftop and walls reduced the air temperature in the middle of the district by up to about 4°C from the case without greening and increased the humidity by up to 16%. It was suggested that quantitative evaluation of the thermal environment improvement effect of building greening could be estimated using CFD for actual block.
