The Impact of External Façade Shading on the Thermal Comfort of Public Rental Housing under Near-extreme Weather Conditions in Hong Kong
Refereed conference paper presented and published in conference proceedings


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AbstractThe comfort and health of building occupants are significantly affected by the indoor thermal environment, which can be improved by building envelopes with a good façade design. This study aims to explore the impact of façade shading on the indoor thermal comfort by adding external shading panels on a typical public rental housing building in Hong Kong. Potential improvements on thermal comfort, in terms of indoor operative temperatures (Top), were evaluated for vertical and horizontal shading panels that were tilted at different angles to the façade. Simulation results on DesignBuilder reveal that horizontal shading panels (with a Top reduction up to 0.91˚C) can achieve a better thermal performance than those oriented vertically (with a maximum Top reduction of 0.57˚C). Moreover, shading panels tilted at 90˚ to 45˚ for horizontal panels and at 75˚ to 0˚ for vertical panels were preferred for better thermal performances. This strategy can be readily implemented to procure more sustainable public housing without causing obstructions to the window view of occupants.
All Author(s) ListSheng Liu, Yu Ting Kwok, Kevin Ka-Lun Lau, Edward Yan Yung Ng
Name of ConferencePLEA 2018 Smart and Healthy within the 2-degree Limit
Start Date of Conference10/12/2018
End Date of Conference12/12/2018
Place of ConferenceHong Kong
Country/Region of ConferenceHong Kong
Proceedings TitleProceedings of the 34th International Conference on Passive and Low Energy Architecture
Year2018
Volume Number3
Pages1027 - 1028
LanguagesEnglish-United Kingdom
KeywordsFacade shading, Indoor thermal comfort, Operative temperature, Public rental housing

Last updated on 2019-12-02 at 15:27