Integration of building information modelling (BIM) with green facade retrofit design in Malaysia

Abstract

The current concerns for sustainability and limitations on land use, has accelerated the shift of construction actions to green retrofitting of existing buildings. rather than investing on new construction. However. achieving very high levels of efficiency in green retrofitting design projects requires applicat ion of the optimal combination of several strategies . considering energy savings , environmental impacts of the buildings . availability of the materials, construction time and cost, and indoor environmeet C Promi sing benefits of Building Information Modelling (BIM) in SUpporting des.ogn oecs-omaking for new sustaina ble construction, motivated resea rch 10 facilitate us,rog 3 1\ ' r design decision making for green retrofit activ ities, as well. Especially. 40 8 1\(. 50 311, ' and 60 BIM referring to time , cost and sustainability issues can be adopted to serve t-e challenges of green retrofit design in practi ce. This paper presents a review of several literature on the topic to identify the design variables of green retrofit in current practice and their interrelationships with building performance parameters, focusing on office building envelope in Malaysian tropica l context . The findings are compared with the BIM functions, for developing a BIM-based design decision making framework to support green retrofit. Compared to the traditional methods, using the proposed BIM-based framework , will enable the decision makers to make more and better informed decisions in green retrofit design projects .