Study on Building Energy Effciency of Reflective Coatings in Hot Summer and Warmer Winter Zone of China

Reflectance and emittance are both important parameters for reflective coatings. Effects of them on building energy efficiency in hot summer and warm winter zone of china have been evaluated using the simulation software EnergyPlus. The results suggest that both the temperature of the surfaces of reflective coatings and the cooling load decrease as the reflectance and emittance increase, and for building energy efficiency the reflectance and emittance should be as high as possible in this zone.