Yonghui LiChen WangJeffrey Boon Hui Yap or JBH YapHeng LiHao Jiang2024-10-282024-10-282021-12https://doi.org/10.1061/(ASCE)AE.1943-5568.0000507https://dspace-cris.utar.edu.my/handle/123456789/5157Flat-to-Slope Roof Retrofitting: Case Study for Energy Efficient Design Protocoljournal-article