Validation of integrated performance model for sustainable envelope performance assessment and design

Many building performance assessment methods have been developed across the world while their designed goal of achieving building sustainability is yet to be achieved. The important shortcomings of these methods include lack of life cycle performance assessment framework for life cycle cost, life cycle energy efficiency, life cycle embodied energy, life cycle carbon emission, thermal energy, inability to connect performance value with weight, inadequate coverage of sustainability issues associating with buildings, lack of multicriteria analysis framework and lack of consideration for social issues. An Integrated Performance Model for sustainable envelope performance assessment and design (IPM-SEPAD) has been developed for the building envelope to address these shortcomings. Therefore, the focus of this paper is to validate the IPM-SEPAD outcomes from the envelope design alternative application with experimental investigation outcomes involving three physical envelope models.