ABSTRACT: Life Cycle Assessment (LCA) is a very important tool for several analyses and it is used to quantify environmental impacts related to products or services. It is essential that building LCA be done during pre-design stage, in order to avoid impacts caused by material waste and lack of planning. Life Cycle Energy Assessment is a LCA method, which analyze energy consumption impacts. Building energy life cycle can be divided into pre operation phase, operation phase and post operation phase. This paper presents a methodology to calculate building embodied energy for pre operation phase during the design stage, using the software Revit Architecture to improve material selection processes. Building Information Modeling (BIM) aims to reduce rework, to properly manage projects information, to model and simulate building performance through temporal, economic and sustainable perspective. The proposed methodology has proved as a feasible and practical tool, since it easily provides results about embodied energy, once materials and model settings are defined.
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