Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/222275
Title: A COMPARISON OF TEMPERATURE REDUCTION BETWEEN COOL ROOF AND GREEN ROOF
Authors: CHIA PEI YU
Keywords: Building
PFM
Project and Facilities Management
Wong Nyuk Hien
2012/2013 PFM
Air temperature
Cool roof
Green roof
Mean radiant temperature
Surface temperature
Vegetation
Issue Date: 27-May-2013
Citation: CHIA PEI YU (2013-05-27). A COMPARISON OF TEMPERATURE REDUCTION BETWEEN COOL ROOF AND GREEN ROOF. ScholarBank@NUS Repository.
Abstract: Urbanization which brings about adverse environmental concerns such as the Urban Heat Island effect has greatly affected many countries. With response to these environmental issues, the implementation of green roofs and cool roofs are well-received strategies by many communities. Although ongoing researches and field studies have shown the benefits of using cool roofs or green roofs, limited information is available for the objective appraisal of cool roofs and green roofs to objectively make decisions on whether green roofs or cool roofs are more applicable. Furthermore, the cooling effect of greenery is not analyzed at the smaller scale of individual types of plants suitable for implementing on roofs. The study seeks to measure the mean radiant temperature, ambient air temperature and surface temperature due to the implementation of cool roofs and green roofs. In addition, the type of vegetation used for the green roofs are further categorized into monocot shrubs, dicot shrubs, turf and groundcover. Together with a same surface area covered with cool paint, comparative analysis is conducted between cool roof and green roofs. Results show the effectiveness of green roofs in providing significant cooling to the surrounding environment and reducing surface temperature under direct sunlight. Additionally, the analyses of various vegetation have shown different Leaf Area Index as well as physical form of plants exhibited contrast temperature reduction. To successfully implement green roofs, it should also be strategically sited for maximum solar exposure. As roof space has evolved from being a space of monolithic functionality into a livable social territory, where people can engage recreational activities, generate business opportunities or simply a quiet space to unwind. By incorporating greenery on roofs, better outdoor thermal comfort will be attained, thus, enhancing the quality of the built environment.
URI: https://scholarbank.nus.edu.sg/handle/10635/222275
Appears in Collections:Bachelor's Theses

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