Temperature Control & Comfort Level of Elementary School Building with Green Roof in New Taipei City, Taiwan
Creators
Description
To mitigate the urban heat island effect has become a global issue when we are faced with the challenge of climate change. Through literature review, plant photosynthesis can reduce the carbon dioxide and mitigate the urban heat island effect to a degree. Because there are not enough open space and parks, green roof has become an important policy in Taiwan. We selected elementary school buildings in northern New Taipei City as research subjects since elementary schools are asked with priority to build green roof and important educational place to promote green roof concept. Testo175-H1 recording device was used to record the temperature and humidity differences between roof surface and interior space below roof with and without green roof in the long-term. We also use questionnaires to investigate the awareness of comfort level of green roof and sensation of teachers and students of the elementary schools. The results indicated that the temperature of roof without greening was higher than that with greening by about 2°C. But sometimes during noontime, the temperature of green roof was higher than that of non-green roof probably because of the character of the accumulation and dissipation of heat of greening. The temperature of the interior space below green roof was normally lower than that without green roof by about 1°C, showing that green roof could lower the temperature. The humidity of the green roof was higher than the one without greening also indicated that green roof retained water better. Teachers liked to combine green roof concept in the curriculum, and students wished all classes can take turns to maintain the green roof. Teachers and students whose school had integrated green roof concept in the curriculum were more willing to participate in the maintenance work of green roof. Teachers and students who may have access to and touch the green roof can be more aware of the green roof benefit. We suggest architects to increase the accessibility and visibility of green roof, such as use it as a part of the activity space. This idea can be a reference to the green roof curriculum design.
Files
10001677.pdf
Files
(702.5 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:ed77de712aa07e4a075174d4d7f35e4d
|
702.5 kB | Preview Download |
Additional details
References
- Yuan, S. M, HO, H. M, Tsui, Y. P, green roof, Liaoning Science and Technology, Shenyang, 2002. (in Chinese)
- Hsu, R. M, The thermal benefits of roof greenery, Chaoyang University of Technology , Graduate Institute of Architecture and Urban Design, Taichung, 2006. (in Chinese)
- Tahir Ayata, Paulo Cesar Tabares-Velasco, Jelena Srebric, An investigation of sensible heat fluxes at a green roof in a laboratory setup, Building and Environment, 2011
- Jian, Y. S, A Study of Eco-Green Roof for Planting Design- The Case in Roof of the Fu Jen Catholic University College of Arts, Fu Jen Catholic University, Graduate Institute of Landscape Architecture, New Taipei City, 2013. (in Chinese)
- C.Y. Jim, Heat-sink effect and indoor warming imposed by tropical extensive green roof, Ecological Engineering, 2014
- C.Y. Jim, c, Applied Energy, 2014
- Jim, C.Y. and He, Coupling heat Flux Dynamics with meteorological condition in green roof ecosystem. Ecological Engineering, 36, pp.1052-1063, 2010.
- Wong, N.H., Tan, P.Y. & Chen, Y., 2007"Study of thermal performance of extensive rooftop greenery systems in the tropical climate", Building and Environment, Vol.42, PP25-54。
- Lin, Y. T, The Study on Decision Making Factors for Setting a Green Roof–A Case Study of Taipei Cheng-gong Public Housing, Feng Chia University, Graduate Institute of Master's Program of Landscape & Recreation, Taichung, 2013. (in Chinese) [10] Chu, F. S, Performance Evaluation of Green Roof Maintenance – A Case Study of School Buildings in Taipei City, National Taiwan University, Graduate Institute of Building and Planning College of Engineering , Taipei, 2014. (in Chinese)