1. Product quality: Although there are few manufacturers of glazed tiles, the product quality is uneven. Therefore, the geometric size of the tiles is not standard, and the bottom tiles are large in radian and relatively flat, and rainwater will flow into the grassroots from the side.

Reason 2: Material selection: Generally, glazed tile roofs are designed with round purlins and wooden rafters, and the surface of the roofs is paved with mixed mortar and glazed tile roofs. Because wood purlins and rafters are elastic materials, under the long-term action of dead load and live load (wind and rain) on the roof, they are prone to deflection and large elastic deformation, which will easily lead to cracking, shelling and loosening of the tile ridge of brittle mortar cushion, and eventually lead to leakage.

Third, the technical problems of the construction workers: In addition, the construction workers are not familiar with the construction technology of glazed tiles, the base is not waterproof, and the mortar sealing the tile head is not dense, which makes the rainwater on the tile surface climb to the inside and drip down, causing the glazed tile roof to leak. At the same time, the joint of the tile is made by post-assembly method, which is prone to position skew and joint leakage.

Resin tile is a common tile in antique buildings, but many ancient buildings have been built for a long time. The manufacturers of glazed tiles think that the roofs laid with resin tile need to be repaired.

Repair skills of glazed tile roof;

First, after the surface plate is installed, the surface plate will be flat-fell seam compacted with putty hemp knife, and the anti-skid strip will be installed. Because the slope of glazed tile roof is generally large, and the sliding force of the whole roof is large by mechanical analysis, it is necessary to use anti-slip strips between the surface plate and the structure and decoration layer to increase stability. The size of the anti-skid strip depends on the thickness of the adhesive layer, which is generally close to the thickness of the thermal insulation mud back, and the spacing should not be too thin, and it can be set between 1.3m and1.5m. ..

Second, in the process of installing the board, we should pay attention to cutting the long side of the board into willow leaves before putting it on the roof, and do a good job of corrosion prevention, insect prevention and flame retardant. During construction and installation, the edges of willow leaves must be aligned, so that the board can be fixed on the rafters with nails, and the number of nails should reach about 50 /m2, so that the board can be fixed firmly. The function of the wicker joint is to install the surface plate firmly, so as to ensure that the guard plate will not leak when removing dust.