自古以来,屋顶在建筑中都是作为遮挡风雨的防护结构的。但是,随着建筑技术的发展,人们越来越注意到有效地利用屋顶这个建筑空间的可能性。现在很大一部分建筑的屋顶由传统的坡顶、尖顶改为平顶,很多楼房把屋顶设计成为可以上人的休息平台,有的还利用来安放水塔储水池,国外有的建筑还利用屋顶做为露天舞厅、餐馆、屋顶花园、屋顶停车场等 Since ancient times, the roof has been used as a protective structure to shelter from wind and rain in buildings. However, with the development of building technology, people are increasingly aware of the possibility of effectively using the roof as a building space. The roofs of most buildings are now changed from traditional spires and spires to flat roofs. Many buildings have designed the roofs to be a resting platform for people, and some have used water tanks to store water tanks. Some of the buildings abroad also use roofs to make roofs. For open-air ballrooms, restaurants, roof gardens, roof parking, etc.