Bathroom, wash basin pulled outside, do you need to redo the entire washroom waterproof?

For the 1 change plan, the toilet needs to be showered and used with domestic water, because the toilet area is small, and the water will easily splash on the surrounding walls (including newly cut walls) when showering; And the water splashed when the wash basin is not blocked by a waterproof layer, it will penetrate deep into the wall and move to other places.

The alteration plan is easy to destroy the waterproofing layer;

To sum up: it is recommended to do the waterproofing of the bathroom as a whole (the ground and walls should be topped);

As long as it involves the alteration of the bathroom wall and floor, especially the transformation of the pipeline, the original waterproof layer may be destroyed, and it is necessary to redo the waterproofing!

In the first case, the action is relatively large, and the original part of the tile cannot be waterproofed, so the waterproof treatment must be careful, meticulous and thorough, and cannot be missed. The second case generally does not affect the waterproofing layer, and the third case must be completely redone!

First of all, I specialize in waterproofing, if the bathroom wants to move, it must be all waterproof, especially the joints of the wall that you said must be waterproof, and if you want to change the toilet or something, you will get rid of the previous one first, and do waterproof in the decoration first. In addition, it is best to make waterproof membrane polypropylene for bathroom waterproofing. Works best.

1 Scientifically speaking, no matter how big or small the bathroom is, or whether there is a wash basin or not, it needs to be waterproof as a whole.

2 Whether you change the toilet bowl or change the tiles, it is possible to damage the waterproof layer. Of course, some will not be destroyed, this depends on personal skills.

3 After reading your description, I am more worried that the waterproof market is very chaotic now, and there are all kinds of materials. For fear that you will be deceived, it is recommended as follows: choose cement-based waterproof coating for waterproof materials.

Brands can choose Yuhong, JCDecaux, Leibangshi, Sika and so on. THE WALLS AND FLOORS OF THE BATHROOM NEED TO BE BRUSHED WATERPROOF AS A WHOLE, AND THE THICKNESS IS ABOUT 2MM (THE THICKER THE BETTER).