Qualitative And Quantitative Daylight
Optimisation By Shading
Device Experimentation
Author(s)
M. Fajkus
Abstract
Daylight has been an influential design factor since the beginning of architectural
practice, though qualitative concerns, such as atmosphere and effect, have
largely outweighed quantitative considerations such as functional and thermal
optimisation. This imbalance has only widened as architectural and engineering
disciplines have become increasingly specialised, such that architects are
exclusively responsible for qualitative design aspects while engineers are
responsible for quantitative issues. Thus, the purpose of this body of work was
to initiate the design of a prototypical shading structure design which accounts
for and encourages overlap between qualitative and quantitative factors
throughout the design process. The prototype was developed and tested both by
simulation software as well as in physical form as it was constructed and
rigorously measured in a unique a full-scale Facade Lab to optimise daylight
transmission performance relative to conventional shading systems. Results from
the initial prototype test show that even by simply manipulating the singular
variable of shading device geometry for an optimised balance of daylight and
permissible views, improvements in both categories are immediately achieved
relative to comparable conventional shading structures, while using less material.
By increasing our quantitative understanding of the cause and effect relationship
between shading device design and daylight transmission as well as thermal
performance, qualitative design processes can be rigorously measured in an
integrated manner. Thus, the research suggests that collaborative common
ground can be achieved between architects and engineers from the beginning to
the end of the design process, to optimise daylight levels and enhance both the
visual experience as well as the thermal performance of architectural spaces.
Keywords: daylighting, interdisciplinary collaboration, shading device.
Keywords
daylighting, interdisciplinary collaboration, shading device
Related Book
Other papers in this volume
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