Green bim for existing buildings

Abstract

There was a flourishing interest and cognizance on green building constructions in past few decades due to considerable negative impacts for the environment from traditional construction processes. In light of this, number of modern technologies have been invented to enhance the performances of sustainable and green strategies. Green Building Information Modeling (BIM) is one of such modern advanced technologies where BIM integrates to sustainable strategies to improve building performances. Though, the technological capabilities of Green BIM are evident, use of Green BIM has been limited only for design and construction phases of buildings. Professionals in construction industry are still struggling in implementing Green BIM for existing buildings, due to the difficulties of collecting information during operation and maintenance phases that are required for the use of Green BIM. As different Green BIM tool needs different data requirements, building owners and facility managers are reluctant in using Green BIM for existing buildings. Hence, the data requirements have been a considerable issue that should be addressed. Further, the way of utilizing Green BIM for existing buildings is also questionable to achieve sustainability. Besides, the actual barriers and hurdles of Green BIM for existing buildings are vague and different studies have highlighted subjective opinions from different views and insights. Hence, this study aimed to review the existing knowledge on aforementioned area and to identify the gaps in prevailing studies for the implementation of Green BIM in existing buildings. Findings of literature review revealed different data requirements for various Green BIM tools, techniques and how it can be used for sustainable strategies. The findings further highlighted the existing gaps where more studies need to be done in the same area.