Mohd Hafizal Mohd Isa is an expert in the field of sustainable architecture, especially in passive design strategies in hot humid climates. His research interests are indoor environmental quality, energy in buildings, thermal energy storage, and thermal comfort. He and his research team have produced many articles related to the fields especially on the applications of phase change materials (PCM) onto building facades. He obtained his master’s degree in Sustainable Building Technology from the University of Nottingham, UK, and later completed his Ph.D. studies at Tohoku University, Japan, under the Laboratory of Building Environmental Engineering (LBEE). At present, he resides at the School of Housing Building and Planning, Universiti Sains Malaysia.