研究了屋顶绿化的节能热工评价方法，通过室内环境为空调控制和自然室温2种状态下的屋顶绿化节能热工对比测试，得到主要结果：在夏季空调期间，绿化屋顶热流减少70%左右，附加当量热阻为1.0 m2·k/w；自然室温环境下绿化屋顶热流方向与对比屋顶相反，绿化屋顶的冷却效率为111%。

Energy consumption and thermal parameters of green roof and bare roof were measured in the airconditioned and nature indoor environment in summer.It was found that the heat flow of green roof was reduced about 70%, and additional equivalent thermal resistance of green roof was about 1.0 m2·K/W in the airconditioned,cooling efficiency of green roof was about 111% in the nature condition.

国家自然科学基金项目(50978261)；国家科技支撑计划课题 (2006BAJ01A020205)