Should the top surface of the bathroom be waterproofed?

First of all, make sure that there is no water leakage or dripping phenomenon upstairs!

The coating waterproof layer is mostly used in kitchens, bathrooms and outdoor balconies, including kitchens, bathrooms, indoor perimeter wall skirts. However, due to the fact that the bathroom and kitchen area are generally small and there are many pipelines, the following matters should be paid attention to in the construction:

1. First of all, the ground should be flattened with cement mortar, and then waterproofed. In this way, the waterproof coating can avoid leakage caused by uneven thickness or exposed waterproof coating, and the slope and slope of the screed layer should meet the design requirements, and the flowing water is smooth without stagnant water.

2. The hole of the rear pipe is chiseled and then watered with concrete, and the joints between the wall and the ground and the joints between the water and water pipes and the ground are the most likely places to cause problems. Therefore, these parts must be paid special attention to, and the treatment must be meticulous, without the slightest sloppiness.

3. The base layer of the waterproof layer of the coating should be firm, the base surface should be dry, clean and smooth, and there should be no hollowing, loosening, sanding, dampness and peeling, and the yin and yang corners of the base should be made into an arc. (The picture below shows the holes in the after-installed pipe opening, the junction between the ground and the wall and the corner of the wall).

4. Before the coating is painted, a layer of substrate treatment agent compatible with the coating should be applied to the base layer, the coating film should be completed many times, and the painting should be carried out after the coating is dried and filmed, and the direction of the coating should be changed alternately during each brushing, and the width of the same layer of coating film should be 30 50mm.

5. In order to achieve a better waterproof effect, the wall of the general bathroom should also be waterproof about 750px high to prevent water from penetrating the wall. There are water pipes and walls adjacent to the bathtub, and the height of the waterproof treatment is also higher than the water pipe surface and the upper edge of the bathtub.

6. The coating procedure should first do the coating reinforcement layer at the corner, through the board pipe, the water outlet and other parts, and then carry out large-scale painting, and the average thickness of the coating waterproof layer should meet the design requirements, and the minimum thickness shall not be less than 80% of the design thickness. The waterproof layer of the coating should be firmly bonded with the base layer, the surface should be smooth, and the painting should be uniform, and there should be no defects such as flowing, wrinkles, bubbling, bottom leakage, and warping.

7. After the waterproof construction is completed, all the sewers of the bathroom should be blocked, and a "low wall" should be built at the door of the bathroom for water injection test, and the water injection height should be about 500px. After 24 hours, if there is no water seepage on the walls and floors around the bathroom, it means that the waterproof quality of the bathroom is very good. On the contrary, to find out the leakage point, maintenance 8, the protective layer of concrete pouring should do a good job of finished product protection, to prevent the waterproof layer from breaking, to find the slope smoothly, straight, thickness to meet the design requirements.

It is okay to do waterproofing in the interior of the bathroom, but pay attention to:

First, it is necessary to do the leveling layer. First of all, the ground should be leveled with cement mortar (especially for rerenovated houses), and then waterproofing. This avoids the waterproofing coating leaking due to uneven thickness or puncture of the waterproofing membrane.

Second, we must do a good job in key parts. The joints between the wall and the floor, as well as the joints between the water and sewer pipes and the ground, are the most problematic areas. Therefore, these parts must be paid special attention to, and the treatment must be meticulous, without the slightest sloppiness.

Third, the wall should also be waterproof. In order to achieve a better waterproof effect, the wall of the general bathroom should also be waterproofed about 30cm high to prevent water from penetrating the wall. The wall adjacent to the bathtub should also be waterproofed at a higher height than the top edge of the bathtub.

Fourth, do a waterproof test. After the waterproof construction is completed, all the sewers of the bathroom should be blocked, and a "low wall" should be built at the door of the bathroom for water injection test, and the water injection height should be about 20cm. After 24 hours, if there is no leakage on the walls and floors around the bathroom, it means that the waterproof quality of the bathroom is very good.

On the contrary, it is necessary to find out the leakage point and carry out repairs.

Do waterproofing in the interior of the bathroom, the effect of waterproofing at the top is not good, it is difficult to do thorough waterproofing, but if you must do it, the top must be completely cleared, until the top completely sees the cement surface, so that there may be a certain effect, otherwise, because the waterproof material can not be tightly combined with the cement layer at the top, it will not play the waterproof effect.

The drainage is required to be waterproofed, and if the above is also a bathroom, then the bathroom of the upper household must be waterproof.

The top surface is not required. If there is a water leak upstairs, it is not good to do waterproofing below.

Waterproofing is needed, completely waterproof, nothing is impossible at all.