在很多建筑物中,屋顶及挑檐用波形瓦铺贴。要铺贴好波形瓦,在施工工序上应注意以下几个方面。1.打底。底子灰的强度及平整度关系到波形瓦是否空鼓。底子灰厚薄不均时,水泥收缩产生的内部应力有差异,当差异较大时,就会产生空鼓。而且底层砂浆强度低,面层砂浆强度高,容易把底层灰抓起,这也是产生空鼓的一个重要原 In many buildings, roofs and provocations are tiled with a wave tile. To lay a good tile, in the construction process should pay attention to the following aspects. 1. Make a bottom. The strength and flatness of the base ash are related to whether the tile is hollow. When the thickness of the base ash is not uniform, there is a difference in the internal stress generated by the shrinkage of the cement. When the difference is large, hollowing occurs. In addition, the strength of the underlying mortar is low, and the strength of the surface mortar is high, so it is easy to grab the bottom ash. This is also an important source of hollowing.