These days, the major talking point in design is sustainability. Then, what is sustainability and why is it necessary? Wikipedia defines sustainability as “the capacity to endure”. The term can be applied to many areas of thought such as economy, energy, life sciences, etc. It is the hot word to characterize resources. It is a descriptive word explaining a particular resource can support and replicate itself with little or no adverse impact to our ecosystem. It is necessary for extended long term survival for plants and animals that our ecosystem remains diverse. This diversity helps support life on our planet and ultimately helps support the well-being of humans. In architecture, in view of that, the Korean traditional architecture should be preserved because it is really beautiful and the most environmental friendly architecture in the world. Han-ok is the Korean traditional style of building edifice. It is characterized by its harmony with nature. Han-ok has been reflected from the tradition, culture and socio-economic living style for a long time. Recently, this has been accentuated on the advantages in aspect of the sustainable society to make up the natural conservation. The environmentally friendly aspects of Han-ok range from the structure’s inner layout to the building materials which were used. The spaces and the materials of Han-ok are considered the representative elements providing functionality and health. The close relationship between the inside and outside area makes the air naturally circulate and natural materials such as wood, soil, rock, and paper, are all natural and recyclable and do not cause pollution have the function as natural ventilation, heat storage, and in the prevention of various illnesses.
Han-ok has their own tiled roofs, wooden beams, and stone block construction. Cheo-ma is the edge of Han-ok’s curvy roofs. It can be adjusted to control the