灰色土夯筑墙房屋是福清县传统的民居,至今还能看到宋代建造的单层房屋。这种建房方法之所以能在该县长期存在,一方面由于该县地处福建中部沿海,雨量大、雨季长,每年都有几次十级以上的台风暴雨;另一方面由于当地出产壳灰(其成分与石灰相同),而其它建筑材料来源少,价格高 The grey earthen wall-building house is a traditional residential area in Fuqing County. So far, one can see the single-storey houses built in the Song Dynasty. This kind of house building method can exist in the county for a long time. On the one hand, because the county is located in the central coast of Fujian, the rainfall is large and the rainy season is long. There are several tens of typhoon storms every year; on the other hand, the local production of shells Gray (its composition is the same as lime), while other building materials have less source and high price