A way to sustainable development of a slum rehabilitation residential project through building information model

Sustainable development in the construction industry majorly relies on energy consumption and CO₂ emissions. It has been well proven that building contribute to majority of energy consumption. Also, orienting the building as per sun path, providing insulation to external elements of the building helps in reducing the energy consumption of a building. But desired orientation and providing additional insulation may not be always possible especially to a slum rehabilitation project. Thus, choosing appropriate materials especially external wall material which is crucial for heat gain inside the building is important. Considering a case of Slum Rehabilitation residential project situated in Pune city, G+2 model is created using Building Information modelling tools (Revit, Autodesk Insight) with actual material usage on the existing project based on survey. This study focuses on reducing the energy consumption by choosing appropriate wall material considering cost, CO₂ emission, and energy analysis. The matrix providing energy consumption, cost and CO₂ emission for the considered wall alternatives will help to choose optimum option for wall having benefits to a project like lesser energy consumption, cost and lower CO₂emissions. The outcome will help the developers and slum rehabilitation authority to reduce the energy usage and thus CO₂ emissions and cost to deliver energy flexible and low carbon building at optimum cost.