Abstract
Sustainable construction is a way for the construction industry to achieve sustainable development by considering social, economic, environmental and cultural issues. Generally, in every commercial building, the equipment that uses the largest amount of energy is air conditioning equipment, including hospital buildings, which is influenced by the surface design concept of the building facade, so this research was created to optimize green building-based building facade design through heat transfer values on the building wall facade or Overall Thermal Transfer Value (OTTV) which refers to SNI 6389:2011 concerning Energy Conservation of Building Envelopes using value engineering methods. The results show that the use of 310 Wp Solar Panels, blue green Stopsol Glass, Aluminum Composite Panels (ACP), Acian Plaster Walls, Wheatershield Paint has an increase in initial costs of 31.23% from existing conditions, but is superior in reducing heat with the highest OTTV value low at 34.16 Wh/m2 and provides the most optimal savings in electricity usage costs of 30.5%.
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