The feasibility of integration of Envelope conservation index between Taiwan and ASEAN

Global climate change and its related environmental issues have aroused public concern about the sustainable development of society. In recent decades, concerted efforts have been made to reduce globally greenhouse gas emissions. In construction, it has been able to make significant contributions to energy conservation and greenhouse gas emissions by setting regulations to control the design of energy-saving designs for building enclosures. The ENVLOAD of Taiwan and OTTV of Southeast Asian countries are both performance-based building envelope indices. According to the deductions of formula transformation and physical significance, this paper proved that interconversion can be achieved between ENVLOAD and OTTV. Taking office buildings in Kaohsiung for example, this paper applied uncertainty analysis and building energy simulation techniques to successfully establish an OTTV formula for office buildings in Kaohsiung, and determined the OTTV reference value of the corresponding and current ENVLOAD reference values. Meanwhile, the scoring of green building envelope energy saving has been transformed from ENVLOAD to OTTV. Taiwan Green Building label is currently going internationalization. In particular, regarding the promotion of Southeast Asian countries facing south; the method proposed by this paper is suitable to develop a consistent formula for other countries or cities. It is believed that this formula will be helpful for the internationalization of Taiwan Green Building label certification system.