Scienceline Publications Journal of Civil Engineering and Urbanism 2252-0430 8 3 2018 May The Effect of Iranian Traditional Architectural Forms on Reducing Energy Consumption; Comparison of Two Types of Buildings in Hot-Dry and Cold Climates (Case study: Afsharian House and Ganjei Zadeh House) 33 38 ojceu.com/main/attachments/article/64/J.%20Civil%20Eng.%20Urban.%208%20(3)%2033-38,%202018.pdf EN Sanaz Mehdizadeh Dalir Master of Architecture Student at UCNA University of Tabriz, Iran Mohsen G. AREGAWI Master of Architecture Student at UCNA University of Tabriz, Iran In different parts of Iran, the traditional form of buildings are significantly subordinate to the climate of the region in which they are located. How much traditional Iranian housing forms have been effective in thermal behavior is an issue that is discussed in this paper. The research method in this paper is analytic-deductive analysis, which is done by modeling and analysis of the case study of two climates and comparing them in different situations with appropriate soft wears. The results of energy simulations and their comparison with each other indicate that the form and geometry chosen by the Iranian architect for each climate show a very good behavior to meet the climatic conditions. And if these two forms of housing are displaced together, this efficiency decreases. As a result, the housing form of each climate is an optimal response to the same climate. Traditional architects have been aware of the impact of geometry and forms on the thermal performance of buildings, and they have been able to respond appropriately to environmental conditions by using different geometric proportions and forms. Iran's Traditional Housing Thermal-Climate Behavior Energy Efficient Prevalence Energy Consumption