this building is to make full use of daylight. Since most activities occurring in this building are during the daytime,
using natural light can greatly reduce the reliance upon artificial lighting. Also, cooling loads can be reduced if
daylight is widely used in the building, because even energy-efficient lighting fixtures can bring significant amount
of heat during use [9]. Approaches developed for maximizing exposure to natural light and controlling incoming
daylight were based on the comprehensive thinking towards the redesign of the building’s programs, layout, mass,
and facade. Daylighting design was developed based on the function of the different spaces, requirements towards
lighting quality, and aesthetic value of the building facade. To improve daylighting performance and interior
lighting quality, manipulation towards the building mass was combined with integrated shading devices to minimize
direct daylight and encourage reflective daylight in order to achieve diffusive lighting performance. Also, building
mass’s redesign also facilitated passive wind driven ventilation to reduce cooling loads in the building. These design
strategies are portrayed in Figure 2.
Fig. 1. (a) Existing building (pre-retrofit); (b) Post-retrofit view of the building.
Fig. 2.