An Integrated Criteria Weighting Framework for the sustainable performance assessment and design of building envelope

Weighting and selection of criteria for the sustainable performance assessment of building envelope are onerous process for building designers, since the process needs to be carefully undertaken in order to adequately assess the sustainable performance of the building envelope. However, the process of selecting performance criteria and weighting the importance of these criteria for the assessment of the building envelope sustainable performance is both challenging and technically complex. A lot of multi-criteria aggregating methods have been developed, many of which require appropriate criteria and weights to evaluate sustainable performance. Some of these methods lack quantitative weighting mechanism while some lack subjective weighting mechanism. Since the weight plays a major role in ranking, assessing and selection of the sustainable envelope design, this paper presents an Integrated Criteria Weighting Framework incorporated into an Integrated Performance Model (IPM) for determining integrated weight for criteria involve in assessing the sustainable performance and selecting a sustainable envelope design. On the basis of the numerical findings, this study concludes that the proposed framework can successfully address the problem of criteria weighting and assessing the building envelope sustainable performance towards achieving building sustainability.