Increasing awareness in environmental pollution, natural resources depletion, sustainable
development and sustainable construction indicate that issues of sustainability are serious concerns
throughout the world. In concrete buildings, conventional on-site construction methods have long been
criticised for long construction time, low productivity, poor safety records, and large quantities of waste
(Egan, 1998; Eastman, 2008). The alternative, more innovative construction method, i.e. Industrialised
Building System (IBS) can offer significant advantages, such as shortened construction time, lower
project cost, improved quality, enhanced occupational health and safety, less construction site waste, less
environmental emissions, and reduction of energy and water consumption.