Why do the joints of the house leak?

1, the weather when painting is also the main reason for water leakage. Frost days, windy days, high temperature days above 35 degrees Celsius, or low temperature weather below 10, the effect of painting exterior walls is generally not good.

2, the wall cavity is not filled, and the cement shrinks and cracks after painting.

3. The main reason for the leakage of exterior wall tiles is that the cracks of tiles are prone to water leakage after the tiles are stuck at the joints caused by primer coating, pores, cracks and changes in the base.

4. Cast-in-situ casting is not a one-time molding, but is completed in two or more times.

5. Water is applied too fast, too little and too much, the interval between water application and painting construction is not well grasped, and protection is not done after painting.

6, improper operation in painting construction, upper and lower interface pulverization, water infiltration into the wall, or cut corners without brushing twice, beam mouth uneven with a disposable brush.

Extended data:

Treatment of house leakage

1, you must find a slope after the waterproof layer is finished, otherwise it will cause local water accumulation on the roof. Generally, it is good to level with cement mortar, and the slope shall not be less than 3%.

2, also need to close the water test, there is water leakage need to rework, no water leakage means qualified, and then to restore the above protection and tile decoration.

When greening, don't destroy the waterproof layer below. If it is damaged, it should be repaired immediately.

4, find the original waterproof layer, because the waterproof layer will not be exposed, in the lower part of the surface layer, we must first remove all the surface layer, so as to better find the original waterproof layer.