Comparative analysis of fenestration systems: A life cycle energy based approach

Abstract

This study demonstrates the use of simulation based approach for undertaking a comparative analysis of Fenestration systems using Life Cycle Energy as performance criterion. It provides a scientific basis for Fenestration material selection and related design decisions. Regression Analysis results indicate that 'Window-Wall-Ratio' (WWR) (p=0.000), and 'WWR Distribution' (p=0.006) are the most significant fenestration parameters affecting building energy performance. The study has implications for local building regulations. It indicates that, the minimum window size specified by regulations in India is inefficient and energy-intensive, especially for commercial air-conditioned buildings falling under Composite Climate classification in India, when windows are not provided on more than one wall.