Comparison of rooftop surface temperature and indoor temperature for the evaluation of cool roof performance according to the rooftop colors in summer: Using thermal infrared camera mounted on UAV

The intensity and the number of days of high temperature occurrence are also high and record heat occurred. In addition, the global warming phenomenon is intensifying globally, and especially in South Korea, the urban heat island phenomenon is also occurring due to rapid urbanization due to rapid industrial development. As the temperature of the city rises, it causes problems such as the comfort of the residential living and the cooling load. In this study, the cool roof performance is evaluated according to the roof color to reduce these problems. Unlike previous studies, UAV(Unmanned Aerial Vehicle) thermal infrared camera was used to obtain the surface temperature (white, grey, green, blue, brown, black) according to the roof top color by remote sensing technique. As a result, the surface temperature of white color was 11∼20°C lower than other colors. Also air conditioning temperature of white color was 1.5∼4°C lower than other colors and the digital thermo meter of white color was about 1.5∼3.5°C lower than other colors. It was confirmed that the white cool roof performance is the best, and the UAV and the thermal infrared camera can confirm the cool roof performa.