A Suggestion for Improvement of IFC Data in Energy Performance Index (EPI) based on Open BIM

As many countries are becoming more aware of environmental issues, both the governmental and private sectors are making more of an effort to achieve eco-friendly construction. However, the assessment of circumstances for building energy performance and green building standards of legislation are still based on two dimensions and manual work. This takes time, costs, and labor and makes assessment inaccurate and inefficient. Therefore, this study suggests methods to improve the eco-friendly building permission process and to automatize the open BIM-based assessment of the EPI among several eco-friendly building standards.