抄録
Structure of the causes of window opening and closing behaviour from summer to autumn were analyzed for students in university rooms by means of rating scale method and factor analysis. 1)The primary cause of opening lies in ventilation, the secondary in warm discomfort, and the third in air contaminance. 2)The primary cause correlates with psychological reasons such as desire for outdoors. 3)The primary cause of keeping windows closed is to use air-conditioners and to avoid the invasion of rain, wind, insects and birds. 4)Noise is a cause of keeping closed only for the group of frequently open(IO), while lack of custom of opening is only for the group of not frequently open(NO). 5)The primary cause of closing is to use air-conditioners. 6)Windows are closed on the basis of behaviours such as going home or leaving. 7)Cold discomfort is a cause of closing for NO.