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As an emerging country and one of the most populous countries in the world, Indonesia requires a sufficient energy supply to ensure the nation's continued development. In response to this increasing energy demand, various studies have proposed energy-saving measures; building envelope design is considered to be a typical energy-saving technique. A significant goal in achieving greener buildings is learning how to reduce a building's energy consumption by applying an efficient energy-saving design. This study used the eQUEST software to investigate how different types of roof construction, glazing and sun-shading techniques affect the energy consumption of residential structures in Indonesia in common scenarios. The results indicate that window shading has the most significant impact on a building's overall energy consumption, followed by the use of an appropriate glazing, whereas the roof type produced smaller energy efficiency benefits. [ABSTRACT FROM AUTHOR]