Façade Optimization Through BIM Technology Based on LEED Assessment of Existing Building Energy

Building sustainability in architecture has become a significant concern, especially for building energy since it is one of the most important aspects to be considered. In architecture, the sustainable building includes different areas such as daylight, airflow, ventilation, solar performance, etc. These areas have different effects regarding building sustainability, energy consumption, and human comfort, which have been considered recently. Daylight is the primary natural source that affects the building energy in terms of visual comfort. This lets the architects pay attention to the need for daylight consideration. Building façade is one of the most important considerations to enhance the daylight performance since it introduces the sunlight to the building interior. Regarding this, the research aims to test a method to enhance the building daylight performance regarding visual comfort by optimizing an existing building façade based on LEED criteria through BIM technology. In order to achieve that, the research explained the important data of daylight parallel to LEED daylight criteria in an office building in Jordan, which is in the climate zone of the middle east. In addition, the research focused on the BIM technology in different manners to help the architects connect all building drawing, data, and energy performance linked to each other to test and accurately produce different solutions. Keywords: Façade Technology, BIM, Building Daylight, LEED Assessment, Façade Optimization