| Keywords |
Daylight glare ; Specular reflection ; Curtain wall ; RADIANCE |
| Abstract |
Many high-rise buildings are built with highly specular facades such as glass and metallic materials to show the buildings as landmarks, and provide the occupants with better views. These specular facades of buildings, however, frequently cause many problems such as daylight glare of occupants in adjacent buildings, disability glares on the pedestrian street and on the driving way and increase of cooling load at adjacent buildings when the direct sunlight is reflected from the building facades. Daylight glare reflecting off specular facades has become an important urban issue recently and it is particularly important to consider daylight reflecting on the surrounding area if the building has a specular facade. The purpose of this study is to suggest a methodology of evaluating the daylight glare due to the specular reflection form buildings with specular surfaces using RADIANCE program. This method can easily generate not only the horizontal specular reflection area but also vertical one. And it allows designers to easily estimate the daylight glare of occupants in adjacent buildings and disability glares on the surrounding area during the early stages of the design process. |