Shahrood University of Technology Renewable Energy Research and Applications 2717-252X Articles in Press 2025 05 12 Investigating the Impact of Double-Skin Facades on Reducing Energy Consumption in Office Buildings (Case Study: Computer Center Building at Shahrood University of Technology) 3470 10.22044/rera.2025.15625.1386 EN Fatemeh - Ahani Faculty of Architectural Engineering and Urbanism, Shahrood University of Technology, Shahrood, Iran Elham - Sarkardehi Faculty of Architectural Engineering and Urbanism, Shahrood University of Technology, Shahrood, Iran Maryam - Ansarimanesh Faculty of Technology and Engineering, Islamic Azad University, Kermanshah, Iran. Hamed - Moslehi Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran. Journal Article 2025 01 17 Approximately 40% of fossil energy consumption in Iran is attributed to office and residential buildings. Therefore, optimizing energy consumption and managing energy demand in these buildings is essential. A key aspect of this optimization is the building's outer shell, which plays a vital role in heat control. One effective method for reducing energy consumption in buildings is the implementation of double-skin facades (DSFs), which have demonstrated superior performance compared to single-skin facades. Considering the high energy consumption of office buildings in Iran, this research aimed to minimize energy use in the computer center building at Shahrood University of Technology. The research methodology consisted of a literature review, field measurements, and simulation. The validity of the research data was evaluated against field measurements, and its accuracy was confirmed. Using Design Builder version 7 simulation software, twelve models of double-skin facades were analyzed and categorized into box window facades and shaft boxes, both located on the southern elevation of the computer center building. The results indicate that the double-skin facade featuring a box window reduces the building's energy consumption by 6.4% to 9.7% compared to the single-skin facade. Additionally, the double-skin facade of the shaft box also decreases energy consumption, ranging from 5.5% to 9.3% compared to the single-skin facade.