Study on the Thermal Effects and Air Quality Improvement of Green Roof

Sustainability

Heng Luo²  Ning Wang¹  Jianping Chen²  Xiaoyan Ye¹  Yun-Fei Sun¹ 

[1] Suzhou Key Laboratory of Mobile Networking and Applied Technologies, Suzhou University of Science and Technology, Suzhou 215009, China; E-Mails:;Jiangsu Key Laboratory of Intelligent Building Energy Efficiency, Suzhou University of Science and Technology, Suzhou 215009, China; E-Mail:

关键词: urbanization;    green roof;    self-maintenance;    sustainability;    thermal effects;    air quality;   

DOI  :  10.3390/su7032804

来源: mdpi

【 摘 要 】

Heat island phenomenon and air quality deterioration issues are two major problems that have occurred during the process of urbanization, especially in developing countries. A number of measures have been proposed, among which roof greening is considered as a promising one due to its outstanding performance in thermal effects as well as air quality improvement. A self-maintenance system, termed the Green Roof Manager (GRM), which comprises the irrigation and shadowing subsystems, is proposed in this paper, focusing on the automatic and reliable operation of the roof greening system rather than exploiting new plant species. A three month long experiment was set up, resulting in the observation that a 14.7% of, on average, temperature reduction can be achieved in summer after deploying the GRM system. During a 24-hour monitoring experiment the PM2.5 concentrations above the GRM was reduced by up to 14.1% over the bare roof.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.