In the high oil prices age, various design factors of the building are required for saving the energy. Glazings and shading
devices can be an alternative of reducing the excessive load of cooling and heating, especially in glass-skin buildings. The
objective of this study is to present solar energies transmitted into the zone and loads of heating and cooling at peak and annual
periods by using the EnergyPlus program. The results show that the application of windows with a low shading coefficient and
louvers with overhang+fins decreases in the energy saving ratio.