Abstract
Cooling system has been installed for all metropolitan high schools in 2008 to improve indoor thermal condition and increase to learning efficiency of students. On the other hand it raises energy consumption and CO_2 emission. In order to resolve the problems, building performance such as insulation and solar reflectance should be improved. This paper presents the results of filed measurement about indoor condition of class rooms which are applied various countermeasures to find out adequate method to realize better indoor condition with lower energy.
