Study of Roof Greening’s Effect on Thermal Environment by Using Infrared Thermography
ZHENG Xing1, 2, YANG Zhen-jing1, 2, LIU Bao-hua3, ZHENG Xiao-kai3, FAN Wei3, GUAN Qing-qing3
1. Faculty of Architecture and Urban Planning, Chongqing University, Chongqing 400045, China 2. Key Laboratory of New Technology for Construction of Cities in Mountain Area, Ministry of Education，Chongqing University, Chongqing 400045, China 3. Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
Abstract：The aim of the present study is to detect the surface temperature of the green roofs by using infrared thermography, and then analyze the roof greening’s effect on thermal environment. The slope roof greening, lightweight roof greening and water storage roof greening’s infrared thermal images were shot in a cloudy day, a day after the rain and a sunny day, and then the same day and different days’ surface temperatures of the three typical green roof were compared. The results show that the green roofs’ surface temperature are mainly under the influence of solar radiation and air temperature, and water storage green roof’s surface temperature is also influenced by its water content. Roof greening can effectively reduce the roof surface temperature and decrease the range of temperature fluctuation in any weather conditions.
[1] Eleftheria Alexandria, Phil Jones. Building and Environment, 2008, (43): 480. [2] Tahir Ayata, Paulo Cesar Tabares-Velasco, Jelena Srebric. Building and Environment, 2011, (46): 1851. [3] Adam scherba, David J Sailor, Todd N Rosenstiel. Building and Environment, 2011, (46): 2542. [4] LI Guo-hua, WU Li-xin, WU Miao(李国华，吴立新，吴 淼). Infrared and Laser Engineering(红外与激光工程), 2004, 33(3): 227. [5] TANG Ming-fang, WANG Dong, ZHENG Kai-li(唐鸣放, 王 东, 郑开丽). Journal of Chongqing Jianzhu University(重庆建筑大学学报), 2006, (4): 1. [6] Santamouris M, Pavlou C, Doukas P. Energy, 2007, (32): 1781. [7] Spala A, Bagiorgas H S, Assimakopoulos M N. Renewable Energy., 2008, (33): 173. [8] Yang Lina, Li Yuguo. Atmospheric Environment, 2009 (43): 3111. [9] Feng Chi, Meng Qinglin, Zhang Yufeng. Energy and Buildings, 2010, (42): 959. [10] FENG Chi, MENG Qing-lin, LI Ning(冯 驰，孟庆林，李 宁). Building Science(建筑科学), 2010, 26(4): 65. [11] CHEN Zhong-lin, TANG Ming-fang(陈仲林，唐鸣放). Building Physics(建筑物理). Beijing: China Architecture & Building Press(北京：中国建筑工业出版社)，2009. 22.
