concept of energy-efficient buildings
Architecturally, the concept of energy-efficient buildings as described on the face of the balance of the income starts from the heat and release heat in the building and the intake process as well as natural light and heat reduction process. Entry process of building heat, especially from the external heating can be reduced through strategic direction toward a building that is by placing the wide walls, windows and ventilation equipment on the sides that were not exposed directly to sunlight, the placement of the leafy plants to provide shading effects on the built environment (especially on the East side and West), the means of imagery in the building to lower the surface temperature of buildings, spatial system settings that allow light and air flow can reach easily into corners of the room. Another strategy that architecturally can be applied to reduce the influence of external heat, such as: the selection of building materials, which can reduce and keep the heat into the building, building colors that do not absorb heat (white or bright color), surface textures that can be reflect heat etc..
In terms of heat release of the building, good air flow inside the building, while it is still regarded as a powerful strategy to reduce building heating. Good air flow through cross-ventilation should be applied in buildings to reduce dependence on artificial system. However, in certain conditions, such as due to the high building density, limited land and others, this strategy is difficult to apply, especially for the placement of ventilation equipment,