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The utilization of specific materials on the exterior of a building's envelope inherently affects both heat gain and the increase in temperature within the microclimate. However, there is a dearth of research in this area. Hence, this research examines the impact of different materials utilized in constructing a specific façade, as well as the orientation of such façade, in relation to the angle of solar radiation on the surface temperature of buildings in hot climatic regions. Furthermore, it involves the influence of the surface temperature on the microclimate in the immediate vicinity. This study encompasses an examination of the educational building 104 situated at Prince Sultan University in Riyadh. The envelope surface of the structure incorporates a combination of glass wall, concrete, and an angled east-facing façade. The methodology employed in this study entails the utilization of a thermal camera at two distinct spots. The camera is positioned at selected daytime hours, capturing images from identical perspectives. Additionally, air temperature loggers are strategically placed in proximity to the chosen building surfaces. The findings suggest that the temperature of the building surface exhibits notable variations based on factors such as the type of materials used, the orientation of the materials’ surface, the form or angle of the materials, and the timing of thermal measurements. The impact on the surrounding air temperatures differs slightly between the surfaces and the two locations. However, it is evident that the glass surface, specifically the heat-reflecting glass, experiences a significantly higher temperature than concrete surface. As a result, the outdoor air temperatures in close proximity to the glass surface are elevated. Nevertheless, the influence of this surface temperature on the microclimate of the neighboring area is minimal due to the inclination of the building’s façade. Furthermore, research has indicated that the reflectivity of a material's surface significantly contributes to the mitigation of solar radiation and hence prevents the increase in surface temperature.

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Diurnal Variations of Surface Temperature of Varied Building Materials and Their Impacts to the Summer Outdoor Air Temperatures - Building 104 Prince Sultan University

  • 会议论文

  • 发表日期：

    2025年

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  • Sharifah Fairuz Syed Fadzil,
  • Mohamed Ezzat,
  • Humera Mughal,
  • Mansour Aloufi

摘要

The utilization of specific materials on the exterior of a building's envelope inherently affects both heat gain and the increase in temperature within the microclimate. However, there is a dearth of research in this area. Hence, this research examines the impact of different materials utilized in constructing a specific façade, as well as the orientation of such façade, in relation to the angle of solar radiation on the surface temperature of buildings in hot climatic regions. Furthermore, it involves the influence of the surface temperature on the microclimate in the immediate vicinity. This study encompasses an examination of the educational building 104 situated at Prince Sultan University in Riyadh. The envelope surface of the structure incorporates a combination of glass wall, concrete, and an angled east-facing façade. The methodology employed in this study entails the utilization of a thermal camera at two distinct spots. The camera is positioned at selected daytime hours, capturing images from identical perspectives. Additionally, air temperature loggers are strategically placed in proximity to the chosen building surfaces. The findings suggest that the temperature of the building surface exhibits notable variations based on factors such as the type of materials used, the orientation of the materials’ surface, the form or angle of the materials, and the timing of thermal measurements. The impact on the surrounding air temperatures differs slightly between the surfaces and the two locations. However, it is evident that the glass surface, specifically the heat-reflecting glass, experiences a significantly higher temperature than concrete surface. As a result, the outdoor air temperatures in close proximity to the glass surface are elevated. Nevertheless, the influence of this surface temperature on the microclimate of the neighboring area is minimal due to the inclination of the building’s façade. Furthermore, research has indicated that the reflectivity of a material's surface significantly contributes to the mitigation of solar radiation and hence prevents the increase in surface temperature.