Multivariable Optimization for Zero Over-lit Shading Devices in Hot Climate

The climate in Egypt is gifted with a clear sunny sky most of the year, providing the excellent opportunity to benefit from natural lighting yet, there is high risk to exceed the amount of daylighting required for doing a specific task based on the latest standards. Thus, the design for highly efficient and optimized shading device is essential at the first stage. This research aims to study a South oriented facade and to present optimized solutions for an oval-shaped shading device for a typical office space. The optimization process triggers two main targets, zero over lit floor area with maximum daylit area. Final results also fulfilled the highest daylighting quality based on the values recommended by both IES and LEED V4 standards.