Dr. Mostafa Behzadfar Armanshahr Architecture & Urban Development 2008-5079 15 38 2022 05 22 Analysis of the Performance of the Shanashir according to its Role in Shading Analysis of the Performance of the Shanashir according to its Role in Shading 63 74 152312 10.22034/aaud.2021.245271.2317 FA Marjan Soleimanzadeh Master of Architecture and Energy, School of Architecture, College of Fine Arts, University of Tehran, Iran (Corresponding Author). Shahin Heidari Professor of Architecture, Faculty of Architecture, College of Fine Arts, University of Tehran, Iran. 0000-0002-2016-2256 Behrouz Mohammad Kari Associate Professor of Road, Housing and Urban Development Research Center, Tehran, Iran. Journal Article 2020 10 03 Bushehr has a valuable historical texture which provides many instructive points in the field of climatic architecture, in terms of both the general characteristics of the texture and the architectural details. However, there are ambiguities about the efficiency and performance of some of its elements one of which is the Shanashir. This element is widely used in the facades of the buildings in Bushehr, making it important to determine its effect on the building performance. Among the considerable number of scientific and experimental solutions, one of the most practical solutions is to review and study the climatic and contextual elements of a specific urban area and compare them with the traditional constructions in it. Reviewing previous studies on Shanashir indicates that most studies have described and analyzed the reasons for the use of the Shanashir in the building and just a few studies have addressed the effect of the Shanashir on the natural ventilation in the building. In the present study, it is attempted to examine another dimension of the function of the Shanashir to find new things about its function. To this end, the simulation software of Radiance and Honeybee are applied to analyze, and explain findings, and provide solutions. By analyzing the investigations performed, the right pattern of the exterior Shanashir in Bushehr in terms of shading is presented, which can be used by designer architects. To this end, after identifying and examining various types of Shanashir (4 types), the effect of the Shanashir on interior lighting is assessed through computer simulation. The results show that the Shanasir attached to the roof, which extends one meter from the roof, acts much like a horizontal canopy. On the other hand, this type of Shanashir, in terms of shading, has a much better performance compared to the Shanasir (with a height of 1 to 1.5 meters) attached to the floor. Bushehr has a valuable historical texture which provides many instructive points in the field of climatic architecture, in terms of both the general characteristics of the texture and the architectural details. However, there are ambiguities about the efficiency and performance of some of its elements one of which is the Shanashir. This element is widely used in the facades of the buildings in Bushehr, making it important to determine its effect on the building performance. Among the considerable number of scientific and experimental solutions, one of the most practical solutions is to review and study the climatic and contextual elements of a specific urban area and compare them with the traditional constructions in it. Reviewing previous studies on Shanashir indicates that most studies have described and analyzed the reasons for the use of the Shanashir in the building and just a few studies have addressed the effect of the Shanashir on the natural ventilation in the building. In the present study, it is attempted to examine another dimension of the function of the Shanashir to find new things about its function. To this end, the simulation software of Radiance and Honeybee are applied to analyze, and explain findings, and provide solutions. By analyzing the investigations performed, the right pattern of the exterior Shanashir in Bushehr in terms of shading is presented, which can be used by designer architects. To this end, after identifying and examining various types of Shanashir (4 types), the effect of the Shanashir on interior lighting is assessed through computer simulation. The results show that the Shanasir attached to the roof, which extends one meter from the roof, acts much like a horizontal canopy. On the other hand, this type of Shanashir, in terms of shading, has a much better performance compared to the Shanasir (with a height of 1 to 1.5 meters) attached to the floor. https://www.armanshahrjournal.com/article_152312_b718011bed0e3a7da7ec04b7f23a2824.pdf