After the bathroom is plastered with wall tiles, is it okay to do waterproofing on the ground twice

If your wall tiles have a reserved height of about meters, and the ground is also waterproof, the waterproof layer can be tested when it is dry!

This doesn't make much sense because the water will seep through the gap between the wall tiles and the waterproofing.

buhao is not good, it will be very troublesome to repair it if there is a problem.

I have eight years of experience in the waterproof industry, and in recent years have been engaged in the integrated construction business of home improvement waterproofing, so I have some understanding of home improvement waterproofing, and I judge it from personal experience: under normal circumstances, the waterproof process is like this: waterproof construction - closed water test - waterproof acceptance - waterproof protective layer - bricklayer entering the site to paste tiles.

If you have to do waterproofing on the tile, it is not impossible, that is, you need to protect the waterproof layer after doing the waterproofing, otherwise the waterproof layer is destroyed later, it is equivalent to not doing waterproofing, it is best to use waterproof mortar to make a waterproof protective layer on the waterproof layer (you can also do it with cement mortar) and then paste the brick. (It's okay not to put bricks, but it's not very beautiful).

><> the picture above is a waterproof protective layer made of waterproof mortar.

> this is a cement mortar waterproof protective layer. Personal opinion, I hope it can help you.