Do you need to touch another layer of cement mortar after the toilet wall is waterproofed?

After the waterproofing of the toilet wall is done, the wall tiles need to touch another layer of cement mortar. That is to say, kitchen and bathroom wall tiles need to be brushed before paving, and the construction can be done in accordance with the requirements of the specification.

The treatment method of wall brushing is to use cement mortar or cement mortar (the sand content should not be too high, otherwise the brushing layer is easy to solidify and the degree is not high, which will also cause the problem of tile falling off) to treat the wall into a high and low jagged bonding layer, and the wall surface is increased after brushing, so as to effectively increase the contact area between the tile and the wall, so as to effectively increase the bonding strength of the tile and the wall.

The basic construction process of wall tile paving is: wall base leveling treatment - wall waterproof (brush waterproof coating) - wall brushing - paving tiles. If the tile is directly paved after brushing the waterproof coating, it is easy to cause the tile to fall off in the later stage.

It's going to be bai

Look at the specific wall situation, such as the original wall of the zhi foundation brushing.

DAO has the phenomenon of powder loss, poor bonding, etc., I suggest you redo it. I have a few suggestions for the waterproofing process:

1.The best waterproof construction material is the coating material, which has strong impermeability and long service life, high environmental protection index, and is far better than the traditional asphalt waterproof material.

2.The waterproof layer should extend from the ground to the wall, 30cm above the ground, and the height of the shower should not be less than 180cm

3.The thickness of the mortar of the protective layer shall not be less than 2cm, and the waterproof layer shall not be damaged during operation, and the flooding slope shall be done, and there shall be no flooding slope.

This depends on the situation, if the original waterproof layer is not damaged, it is equivalent to two waterproofs, but you can do it or not. If there is excess waterproof material to make a waterproof liquid, it is okay, which is equivalent to 3 insurance.