1. Lecturer, Div. of Building Science And Technology, City Univ. of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, China (corresponding author).
2. Associate Degree Building Surveying Graduate, Div. of Building Science And Technology, City Univ. of Hong Kong, 83 Tat Chee Ave., Kowloon, Hong Kong SAR, China.