Penerapan value engineering pada pekerjaan fasade konsep secondary skin di Gedung IGD Rumah Sakit Islam Jakarta

The rapid development of hospital facilities in Indonesia requires building designs that are efficient, safe, and sustainable. The building façade plays a key role in achieving these objectives, particularly through the application of a secondary skin system to improve thermal comfort and energy efficiency. However, selecting appropriate secondary skin materials requires a systematic evaluation to ensure technical performance, safety, aesthetics, and life-cycle cost efficiency. This study aims to determine the optimal secondary skin façade material for hospital buildings using a Value Engineering (VE) approach. A quantitative method was applied through a case study of the Emergency Department building at Rumah Sakit Islam Jakarta Cempaka Putih. Primary data were obtained from expert interviews, while secondary data were collected from technical project documents. The analysis followed standard VE stages, including functional analysis using the Function Analysis System Technique (FAST), creative development, and evaluation using Multi-Criteria Analysis (MCA) and Life Cycle Cost Analysis (LCCA). The results indicate that façade elements significantly influence project costs and offer substantial potential for value improvement. A twin face secondary skin system using laser-cut Aluminium Composite Panel was identified as the most optimal alternative, improving thermal performance, energy efficiency, and life cycle cost effectiveness.