Framework for Supporting Sustainable Design

In the realm of digitally assisted sustainable building design, computational tools, mostly simulations, are invoked to find loads and predict system performances in terms of energy use. These tools also provide a way of envisioning the effects of choices made during the design process, say, of materials; of heating and cooling systems; and of methods of construction that may detrimentally effect the environment. Although, ensuring energy efficiency is one of many indicators of sustainability, other requirements have to be met in order for a building to be deemed sustainable. Currently, sustainability in the building domain is judged by reference to a standard or rating system by which a building is measured. (Yudelson, 2008) Rating systems, however, “are a moving goal post.” (Walker, 2006) Being able to use the requirements set out by a rating system during design can offer a comprehensive guide towards sustainable design. Taking this into consideration, this paper presents the need to create a flexible framework to encapsulate the requirements of sustainable measures posed by the different rating systems. The development and use of a flexible framework is essential for sustainable building design particularly in the area of organizing requirements and the adoption of a rating system during design. One possible way of creating a flexible framework that can be integrated with a design tool, for supporting sustainable design, is presented.