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The control of solar radiation on roofs is one of the most important subjects in improvement of the indoor thermal environment of residential buildings. However, there is very little research on the relation between roof forms and the thermal environment. The purpose of this study is to clarify the relation between the roof form and the attic temperature by model experiments and numerical simulations. The result of the model experiment shows that the attic temperature is greatly influenced by roof forms, such as roof shape, roof pitch and roof azimuth. The tendency of model experiment matches the result of numerical simulation well. The attic temperatures for various roof forms in summer and winter are calculated using weather data of typical points in Japan. As a result, the relationship and the regional characteristic between the roof form and the attic temperature are clarified.

住宅の熱環境に与える屋根形態の影響について