Abstarct: Approaching the global goals of reducing non-renewable energy consumption, should be taken more seriously in our country by the global warming process, increasing environmental pollution and the resulting economic pressures. Regarding that the building industry is one of the country's largest energy consumers, it would be useful to provide solutions to utilize the country's climate capacity effectively to minimize the use of heating, cooling and ventilation systems. Considering the issues of building energy efficiency in the early stages of design is one of the points that this research addresses. Orientation, form, materials and so on are effective factors in the building that will play an important role in the overall energy performance of the building. This study, after identifying the most commonly used facade materials in Tehran, measures the role of the Albedo Factor as one of the reflective properties of facade materials in reducing the energy consumption of the building. Also, it investigates the effect of self-shading. In this study, the effect of different angles of wall inclination was investigated on an incomplete reverse pyramid building as a self-shading form in Tehran. The results showed that increasing the angle of inclination resulted in a decrease in energy consumption in the target range (between 10 and 30 degrees). Also, in this study, it is tried to investigate the effect of the albedo of the facade materials on the energy efficiency of buildings, and the effect of shadow on the albedo of facade performance in reducing the energy consumption of buildings. For this purpose, we first compare the effects of albedo on two vertical buildings, two self-shading buildings and then two buildings with a horizontal south shader. The results showed that in all these cases higher albedo building performance was better in terms of energy consumption, but the shade reduced the high albedo effect in reducing energy consumption because high albedo performance was dependent on sunlight. Thus adding a southern canopy to Building with lower albedo, caused lower annual energy consumption. In other words, the cooling effect of the canopy was lower in buildings with reflective materials than other buildings, but the energy performance of buildings with higher albedo was still better. The energy analysis performed in this study was performed by the Insight 360 Plugin 2019 software.