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The development of visible sky area as an alternative daylight assessment method for high-rise buildings in high-density urban environments.

Authors :
Hamzah, Baharuddin
Lau, Stephen S.Y.
Source :
Architectural Science Review; Jun2016, Vol. 59 Issue 3, p178-189, 12p
Publication Year :
2016

Abstract

This research aims to develop a new daylight assessment method for high-rise residential buildings located in high-density urban environments. The new visible sky area (VSA) method was developed based on data gathered from an extensive survey of high-rise residential building plans and layouts in Hong Kong and followed by a large number of daylight simulation experiments. The results of simulations showed a very small daylight quantity arriving at windowpane of lower floor level of high-rise residential buildings due to high-obstruction from nearby buildings and also self-obstruction. The new method would guarantee the availability of sky area seen from windowpane in order to provide a good vertical daylight factor (VDF), which has been adopted as a performance-based daylight indicator in Hong Kong. A minimum VSA of 12% and 6% for habitable rooms and kitchens, respectively, is proposed for this situation. [ABSTRACT FROM PUBLISHER]

Details

Language :
English
ISSN :
00038628
Volume :
59
Issue :
3
Database :
Supplemental Index
Journal :
Architectural Science Review
Publication Type :
Academic Journal
Accession number :
114512874
Full Text :
https://doi.org/10.1080/00038628.2014.963021