The Effect of Roof Form Design on its Climatic Performance in a Hot and Dry Location: Software Analysis in the Climate of Kashan City

Takbash, Morteza; Hatamian, Mohammadreza; Farshchi, Hamidreza

doi:10.48301/kssa.2024.437319.2829

The Effect of Roof Form Design on its Climatic Performance in a Hot and Dry Location: Software Analysis in the Climate of Kashan City

Document Type : Original Article

Authors

Morteza Takbash ¹

Mohammadreza Hatamian ²

Hamidreza Farshchi ²

¹ MSC in Architecture, University of Kashan, Kashan, Iran.

² Assistant Professor, Department of Achitecture, University of Kashan, Kashan, Iran.

10.48301/kssa.2024.437319.2829

Abstract

Cities consume 75% of the world's primary resources such as crude oil, coal, and natural gas, and also produce 60 to 80% of greenhouse gases. The share of buildings in this destructive impact is 60%. The roof is the most affected component of the building against climatic factors in hot and dry climates because it is exposed to the maximum amount of sunlight and heat exchange. Therefore, its climatic performance is necessary to improve the climatic performance of spaces. The current research presents the current forms of roofs in the hot and dry climate of Iran including flat and flat roofs, roofs with flat and dome canopies and flat roofs with a height of 3 meters and more than 3 meters, and in the traditional architectural model, arched roofs, the vaulted roof in two longitudinal and transverse directions and the track arch, and the dome roof using software analysis. The main purpose of this research was to compel the community of architects, designers and building managers to pay greater attention to the design of the form of spatial elements such as roofs and their impact on optimizing the energy consumption of buildings. The main question of the research was as follows: among the common forms of roof design in the hot and dry climate of Iran, which form has the best climatic performance or in other words, the lowest amount of cooling energy required to cool the roof and as a result the space covered by it? First, using the climatic data of the Meteorological Organization of Iran and climate consultant software based on ASHRAE Standard 55, the climatic characteristics of Kashan were analyzed. In the next section, using Autodesk Revit software and Insight 360 plugin, the cooling energy required for the space under each of the roof forms mentioned previously in Kashan climate was analyzed. Findings of the software analysis showed that the transverse arch roof has the most suitable climatic performance, followed by the 6-meter flat roof and a roof with a dome and fixed canopy, a dome roof, a longitudinal arch roof and finally, a flat roof with a height of 3 meters had the worst climatic performance.

Keywords

Hot and Dry Climate (Kashan) Roof Climatic Performance Climatic Software Analysis

Roof Form Design

Subjects

Energy conversion

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