Abstract：
Under environmental influences, coating on building surface may be easily contaminated and its sunlight absorption coefficient may be changed to affect its energy saving effect. After comparison and analysis of tested data between the heat reflection insulation coating on the external wall of testing building and new coating, it is found that the heat reflection insulation performance of contaminated coating will be weakened but still be better than ordinary coating, and that the heat retardation of contaminated coating is also 0.2 h shorter than new coating. During research on building energy saving performance, the energy-saving effect shall be determined according to the contaminated healt reflection insulation coating.
XIE Xue-ling,YANG Li-ping,ZHU Hui-ying et al. RESEARCH ON HEAT PERFORMANCE OF NEW AND OLD HEAT REFLECTION INSULATION COATING IN SUMMER[J]. Architecture Technology, 2013, 44(9): 789-791.
