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Abdizadeh S, Nasiri H, Ahmadnejad F. Evaluation of The Effect of Porch in Traditional Houses of Tabriz on The Daylight Factor Changes (Case Study: Behnam, Ghadaki, and Ganjeizadeh Houses). CIAUJ 2024; 9 (1) :69-80
URL: http://ciauj-tabriziau.ir/article-1-423-en.html

The daylight factor is known as a substantial element in architecture and a useful strategy in the design of low-consumption buildings. In this lieu, the porch is one of the factors affecting the amount of daylight gain, which can be beneficial for decreasing energy consumption. Daylight leaves positive physical and psychological effects on the users and is among the key aspects of the design. Hence, this study aims to evaluate the effect of the porch in traditional houses of Tabriz on the daylight factor changes. In this case, the architecture of the Qajar period is preferred due to its similarity to the current era and the structural features of the houses constructed at that time, including having porches, active use of many of them, and higher statistical society; therefore, Behnam, Ghadaki, and Ganjeizadeh Houses in Tabriz were chosen as the statistical sample and society. In this research, the data were collected through the library-field method. The daylight rate of spaces behind the porch was measured using energy simulation software. According to the selected index, the porch approach was examined in different directions and seasons. The results showed that the effect of the porch on the daylight is higher in summer with a 30-60% decline rather than a 1-30% decline during winter. It is understood based on the results that traditional houses with porches outperform the houses without court in terms of illumination or lighting conditions control in the space. Moreover, the quality of illumination in the spaces behind the porches of these houses is closer to the standard limit during various seasons.