一般琉璃瓦屋面采用圆木檩条、木椽上铺望瓦，望瓦面上铺刮混合砂浆，最后摊盖琉璃瓦屋面的设计方式。由于木檩条、木椽属于弹性材料，在屋面恒载的长期作用及活荷载（风、雨）的作用下易产生挠曲，弹性变形较大，易造成脆性的砂浆垫层开裂、脱壳和瓦垄松动，最终产生琉璃瓦屋面渗漏。
The general use of glazed tile roof purlin, rafter on wood logs at the upper tile, tile surface scraping at mixed mortar, design the glazed tile roof cover last stand. Because of the wood purlin, wooden rafters belongs to an elastic material, in the long-term effect of the roofing of the dead load and live load (wind, rain) is easy to produce deflection under the action of elastic deformation caused by brittle cracking, shelling and mortar layer corrugated loose, resulting in tile roof leakage.
现在琉璃瓦屋面渗漏瓦生产厂家虽较少，但产品质量参差不齐。因此，瓦的几何尺寸不标准，底瓦的圆弧大，比较平，且有翘曲，雨水会从横向流人基层。另外，施工人员对琉璃瓦的施工工艺不熟悉，基层不经防水处理，瓦头封口的砂浆不密实，使盖瓦面的雨水爬向内侧下滴，引起琉璃瓦屋面渗漏。同时，盖瓦的接头是用后拼装法制作的，易发生位置歪斜，水从接头处向下渗漏。
Now glazed tile roofing tile manufacturers are less, but the quality of products is uneven. Therefore, tile geometric size is not standard, the bottom tile arc large, relatively flat, and warp, rainwater will flow from the bottom to the bottom. In addition, the construction personnel construction technology of glazed tile is not familiar with the grassroots without waterproofing, mortar watou seal is not dense, so the rain to climb inside the tiling drop, causing tile roof leakage. At the same time, tiling joint is made after assembling, prone position skew, the joint water leakage down.

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