Numerical investigations have been performed to study the cooling load reduction of office buildings by using different types of solar shades and find out the most efficient type of shade. In this paper simple indices were proposed to compare the thermal efficacy of different types of solar shadings in non-residential buildings. The building cooling load influenced by sunlight and outside weather. An auditorium in the campus is analyzed and recommend an optimized length of shade using Google sketch and Energy Plus software.

Keywords: Shades, simulation, building energy, width o f shades, weather data, Green building