With an environmental problem, a social interest in the design technique (passive technique) by "PASSIVE SYSTEM" of the natural energy use has rises. However there is not the inclusive material now because "PASSIVE SYSTEM" is a new design technique. This study's purpose is investigation of the characteristic and the selection factors of the passive techniques from a houses using passive technique in a recent architectural magazines.
First of all, the passive techniques were classified by every effect and use part from 187 examples. From there, we clarified qualitative characteristic of passive technique. Second, we indicated the selection factors that it was a scale and the main structure and ambient environment of the examples. Finally, we classified the examples into eight types by a technique combination because plural passive techniques were used in the examples. As a result, the examples were divided into two main systems. The one system was to control sunlight and ventilation by composition of room layout. The other system was to collect and save heat of sunlight by the part of architecture in winter.
