Environmental impact of cool roof paint: case-study of house retrofit in two hot islands
Environmental impact of cool roof paint: case-study of house retrofit in two hot islands
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DOI：
10.1016/j.enbuild.2020.110007
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发表时间：
2020-06
影响因子：
6.7
通讯作者：
E. Shittu;V. Stojceska;P. Gratton;M. Kolokotroni
中科院分区：
文献类型：
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作者：
E. Shittu;V. Stojceska;P. Gratton;M. Kolokotroni
冷屋顶可以节省能源，特别适合炎热气候下的低层建筑。本文根据经过验证的热模型介绍了两个岛屿（西西里岛和牙买加）现有房屋的潜在节能结果。它还介绍了冷漆的生命周期环境影响，重点关注中点和端点影响类别，并将其与隔热影响进行比较。研究发现，在这两个地点，通过凉爽的屋顶都可以带来显着的净能源效益，在没有供暖需求的牙买加更为明显；节省的费用与隔热材料的减少相当。除水耗竭潜力外，冷漆对环境的影响低于各种隔热材料。冷漆的主要热点是聚合物的生产，其次是颜料的生产。
Cool roofs save energy and are particularly suited for low rise buildings in hot climates. This paper presents results of potential energy savings for existing houses in two islands (Sicily and Jamaica) based on validated thermal models. It also presents the lifecycle environmental impact of the cool paint focussing on both the midpoint and endpoint impact categories and compares these with thermal insulation impact. It was found that significant net energy benefits are possible in both locations by a cool roof, more pronounced in Jamaica, which has no heating demand; savings are comparable with thermal insulation reductions. The environmental impact of cool paint is lower than a variety of thermal insulation materials with the exception of water depletion potential. The main hotspots of the cool paint are the production of the polymer followed by the production of the pigment.