Abstract
Japan has a long history and tradition that city landscape has been shaped by the wooden buildings, and sometimes those buildings were suffered from big fires such as people experienced in the "Kanto great earthquake", or in the war-damage of "World War II". From the experiences shown above, the Building Standard Law of Japan at present describes as follows: "Wooden buildings in a quasi-fire protection districts shall have such portions of their external walls and soffits as are liable to catch fire be of fire preventive construction, —"
The main aim of this research is to establish a new fire protection system installed with water spray nozzles outside of a building, instead of the fire preventive materials described in the law, from a viewpoint of the preservation and succession of traditional Japanese wooden houses named the "Machiya".
As the final approach of this research, and actual-size Machiya model was served for a fire test, and the new fire protection systems using water spray nozzle was found to be very effective to protect a building from fire.
