In 1995, the magnitude 7.2 Great Hanshin earthquake devastated Kobe, Japan, which offered a reconstruction project to Ban."pg173" Not only are the temporary shelters very cheap and easy to develop as they incorporate community participation, but they offer more versatile living conditions compared to traditionally used tents. The modules have paper tubing for walls, with small ventilation gaps between the members, which can also be taped up to insulate."pg174"The roof was made from a waterproof tenting material while the foundation consisted of donated beer crates filled with sandbags."pg107"