Do you want to tear off the original layer of waterproofing in the bathroom?

If there is a water leakage, it is a problem with the quality of the developer's building, and the property management needs to be redone, and it is necessary to do a waterproofing after the end, the main reason is that the waterproof of the wall must be 80 cm or 180 cm high, so as not to leak water from the wall. Or should the previous one be cleaned up, it is necessary, if you don't get rid of the previous one, there will be a sandwich, and if you don't do it well, it will be missed.

After doing hygiene, waterproofing generally has to tear off the original layer, and there must be a solid foundation layer.

In the case of loose waterproof layer, it should be removed.

To tear it up, at present, in order to save money, civil contractors use polyurethane paint for waterproof coatings, and asphalt is used instead of coal tar as raw material (the one with black paint Mau). However, when using this kind of coating, it is generally diluted with organic solvents containing toluene and xylene, so it contains toxicity; At present, the decoration companies are using polymer cement-based waterproof coatings, and the quality is much better than this. It is recommended not only to remove the original waterproofing, but also to remove the original mortar layer together, check the situation of the wall base, if the wall base is very poor, due to the blocking of the waterproof layer, we can not see.

Even if the original waterproof layer is done well, there will still be water seepage in the later stage. Note that it is water seepage, and the wardrobe on the opposite side of the wall is especially careful.

It depends on what kind of waterproof material you used before, if it is a mortar waterproofing agent, then it can be re-done without eradication; However, if it is a waterproof coating, waterproof membrane, etc., it needs to be shoveled clean and exposed to the cement base surface before construction.

It is recommended to use kitchen and bathroom waterproof slurry to do waterproofing in the bathroom, first repair and strengthen with quick-setting repair mortar, and then use permanent waterproof slurry to do waterproofing as a whole, so that the waterproof effect is guaranteed.

In addition to choosing the right waterproof material, special attention is also required to pay attention to the standard painting height, the thickness of the painting, the interval between the brushes, and the maintenance after waterproofing.

Don't tear it off, there is no harm in doing one more layer, when the building is delivered, the waterproofing is done, and it is better to do it again, double insurance.

No eradication is required. It is only necessary to thoroughly remove the surface dust, oil, release agent, hollowing drum and weathering matter to ensure that the surface of the base layer is smooth and free of cracks, and then brush it 2-3 times with constant solid waterproof paint to dry and form a film. Hope.

If the material is stable and there is no damage or leakage, there is no need to tear off the PO

This is not needed.

Depending on the specific situation, if the previous waterproof layer is damaged, resulting in uneven potholes in the waterproof surface layer, hidden leakage points, or there is no way to confirm the situation, it is better to redo the waterproofing, and the foundation project is difficult to rework, and the problem is too troublesome.