Computational BIM for Building Envelope Sustainability Optimization Yaik-Wah Lim, Taki Eddine Seghier, Muhamad Farhin Harun, Mohd Hamdan Ahmad, Azurah A. Samah and Hairudin Abdul Majid MATEC Web Conf., 278 (2019) 04001 Published online: 08 April 2019 DOI: 10.1051/matecconf/201927804001