Selection and performance evaluation of roof materials in arid oasis cities: The advantages of white polymer materials

IF 7.1 1区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY
Wentao Fu , Yaohua Li , Ümüt Halik , Aolei Tian , Ailiya Ainiwaer , Yuying Liu , Zhicheng Wei , Lei Shi , Martin Welp
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Abstract

Selecting the appropriate roofing material is crucial for addressing the urban heat island effects. However, uncertainty remains regarding the best roofing material for improving subsurface cooling during hot summers in temperate continental arid climates. Comparative studies on different roof materials under various climatic conditions are essential to determine the most effective heat mitigation strategies for arid oasis cities. We present a conceptual model to examine the relationship between roofing materials and their thermal mitigation capabilities in arid regions during hot summers, while assessing the influence of climate factors on their cooling performance. An experiment in Urumqi evaluated the subsurface heat mitigation capabilities of four roofing materials: white polymer materials (WPM), sod (SOD), asphalt (ASP), and solar photovoltaic panels (SPP). The results showed that the WPM provided the most effective subsurface cooling. Compared with SOD, ASP, and SPP, WPM showed the lowest subsurface temperature. Notably, the subsurface temperature of the WPM was minimally affected by climatic factors and showed no correlation with solar radiation intensity, precipitation, and cloudiness (P > 0.05), highlighting its superior cooling performance. WPM roofs are recommended for heat mitigation during hot summers in arid oasis cities owing to their low maintenance costs, ecological benefits, and superior cooling performance. This study highlights the subsurface cooling capabilities of various roofing materials and their interaction with climatic factors and provides valuable insights for heat mitigation strategies in arid regions.

Abstract Image

干旱绿洲城市屋顶材料的选择和性能评估:白色聚合物材料的优势
选择合适的屋顶材料对于解决城市热岛效应至关重要。然而,在温带大陆性干旱气候条件下,改善炎热夏季地下降温的最佳屋顶材料仍然存在不确定性。对不同气候条件下的不同屋顶材料进行比较研究,对于确定干旱绿洲城市最有效的热量减缓策略至关重要。我们提出了一个概念模型,用于研究干旱地区炎热夏季屋顶材料与其热减缓能力之间的关系,同时评估气候因素对其降温性能的影响。在乌鲁木齐进行的一项实验评估了四种屋顶材料的地下热减缓能力:白色聚合物材料(WPM)、草皮(SOD)、沥青(ASP)和太阳能光伏板(SPP)。结果表明,WPM 提供的次表层冷却效果最好。与 SOD、ASP 和 SPP 相比,WPM 的地表下温度最低。值得注意的是,WPM 的地表下温度受气候因素的影响极小,与太阳辐射强度、降水量和云量没有相关性(P > 0.05),这突出表明了其卓越的冷却性能。由于维护成本低、生态效益好、冷却性能优越,建议在干旱绿洲城市的炎热夏季使用 WPM 屋顶来缓解热量。这项研究强调了各种屋顶材料的表层下降温能力及其与气候因素的相互作用,为干旱地区的防暑降温策略提供了有价值的见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Building and Environment
Building and Environment 工程技术-工程:环境
CiteScore
12.50
自引率
23.00%
发文量
1130
审稿时长
27 days
期刊介绍: Building and Environment, an international journal, is dedicated to publishing original research papers, comprehensive review articles, editorials, and short communications in the fields of building science, urban physics, and human interaction with the indoor and outdoor built environment. The journal emphasizes innovative technologies and knowledge verified through measurement and analysis. It covers environmental performance across various spatial scales, from cities and communities to buildings and systems, fostering collaborative, multi-disciplinary research with broader significance.
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