International Journal of Engineering and Technology

According to the sustainable architecture theories, the building with a high level of thermal performance is the building that has the high percentage of thermal comfort accomplishment and low level of energy consumption. Thermal comfort is a building’s criteria in order to make the building’s users activity become optimal. It can be achieved by natural ventilation/NV system and air conditioning/AC system that may either preserve or consume a great deal of fossil energy. Hence, climatic parameters and architecture design aspects could always determine its accomplishment. Ward is the primary section of hospital installation which functions as patient’s house while they undergo their healing process, whereas hospital is a primary public facility in any contemporary urban setting. From the energy using side, hospital is the public building type that has high level of fossil energy consumption. Therefore, the development of high level’s thermal performance ward will contribute to environment sustainability by reducing its fossil energy combustion. For that matter, it is then important to know which ward’s design aspects that may become the dominant factors for the thermal comfort establishment and efficient energy use. The goal of this research is mainly to disclose the relationship between thermal performance and architecture design aspects in lowland warm humid tropics ward. The research methods are quantitative method (by using statistical test, linear regression analyses and correlative analysis based on the building’s physics theory) and field case study. The results of this research are the architecture design aspects of lowland warm humid tropics ward that have been dominant factors on its thermal performance level; that are the building’s orientation toward the sun and the building’s layout plan within the site.