The Thermal Effects of Plants on Buildings

Urban Farm DB summary

This study explored the potential of rooftop gardens to reduce heat gain into buildings and modify ambient conditions through plant photosynthesis and evapotranspiration. Results suggest that rooftop gardens can effectively cool the immediate ambient environment by 1.5°C. Surface temperature readings from rooftop gardens were lower than those on barren concrete rooftops, indicating improved thermal insulation in the presence of plants. However, high relative humidity was also observed in rooftop gardens due to plants, requiring adequate natural ventilation to prevent discomfort.