Daylighting strategies are one of the most common aspects of architecture, but their proper use was ignored by the designers during the implementation of the educational buildings which led to the lack of distribution of Well daylit within the deep spaces. They find a lot of spaces have many windows and the absence of any external obstacles to entering the daylighting inside the space. But it has found some areas still dark, generate extensive heat gain and discomfort glare problems and this is not accepted in IES which ensures visual comfort, is one of the key design goals that architects and lighting designers seek; Due to the availability of cheap electricity at the time, the main dependence on space lighting was achieved by using the non-regulated electricity which led to the rapid increase in For this purpose, especially in deep spaces which asymmetric dimensional designed this paper aims to study the effect activating the use of top lighting strategies in educational establishments, especially the drawing rooms, which needs on the uniformity and availability of daylight and for long periods, to maintain the visual comfort of the application and rationalize the use of electricity using the techniques of the daylighting for the regular distribution of lighting. This investigation conducted by Generating the 3d models and analyzing the daylighting performance conducted through a parametric simulation approach. This approach included two software programs which are Grasshopper and Diva for Rhino. This Simulation consisted of two phases. The first phase investigated by achieved spatial daylight autonomy by use sawtooth systems on daylighting performance in four intermediate orientations. The second phase investigated using different shading techniques on enhancing daylighting performance and treatment of the annual sunlight exposure. Simulations were conducted using the weather data file of Alexandria, Egypt. The performance assessment was based on two metrics: IES approved method -Spatial Daylight Autonomy (sda) and Annual Sunlight Exposure (ASE). Results show that the northeast and northwest orientation for sawtooth opening with shading systems in Alexandria reached the required daylighting performance and achieved the acceptance criteria of the assessment metrics according to the daylighting requirements of IES.

Keywords : Educational Buildings; Draw Studios; Diva- For-Rhino Simulation; Grasshopper; Daylighting; Sawtooth; Skylight; Deep Space; Annual Sunlight Exposure; Spatial Daylight Autonomy.