Steps to do waterproofing in the bathroom

1. Plug the sewer pipe.

The waterproofing of the bathroom is usually carried out after the completion of water and electricity, so the sewer pipe must be blocked before waterproofing to avoid blockage, the small water pipe is blocked with a nut, and the large pipe is blocked with PVC winding film.

2. Leveling of the ground and wall.

Leveling refers to the ground plastering treatment, the thickness of leveling should not exceed 3, and the horizontal and vertical errors should be controlled within 5.

3. Brush the waterproof paint for the first time.

First, the wall water and electricity slotting is blocked with cement, and the base layer is cleaned, and the waterproof coating should be filled, and the base layer should be firmly combined, no cracks, no bubbles, no falling off, and the painting height should be consistent.

4. Brush the waterproof paint for the second time.

Note the first. There needs to be a certain time interval between the first and second passes, and the second pass can only be carried out after the first pass has dried. If the interval is too short, the waterproof effect will be greatly reduced.

5. Lay a protective layer.

In order to prevent the subsequent construction from damaging the waterproofing, a protective layer needs to be laid on top of the waterproof layer, and the protective layer should be completely covered with the waterproof layer.

6. Closed water test.

When doing the closed water test, the waterline at the highest point of the ground should not be lower than 2, and wait for at least 24 hours before there is no leakage. If there is a leak, it must be redone, and it must not be forgotten.

Let's take a look at bathroom waterproofing materials.

Base (Substrate) Treatment:

The substrate must be firm, flat and clean, free of dust, greasy, wax, release agent and other debris substances;

If there are pores, cracks and unequal defects on the base surface, it must be repaired and smoothed with cement mortar in advance, plastic strips are recommended to be pasted on the expansion joints, a layer of non-woven fabric must be added to the nodes, and it is recommended to use Leibangshi nozzle grouting material for nozzle filling;

The yin and yang corners should be wiped into an arc shape (or V-shaped);

Make sure the base surface is sufficiently wet, but there is no open water;

Freshly poured concrete surfaces (including plastered surfaces) should be allowed to dry and set completely before construction.

How to use: Stir: Pour the liquid into the container first, then slowly add the powder, and stir fully for 3-5 minutes until a uniform slurry without raw flour and particles is formed. (It is best to use a blender).

Brushing: Brush directly on the base surface with a brush or roller brush, and the strength should be used evenly, and the brush should not be missed; Generally, it needs to be brushed twice (according to the requirements of use), and the thickness of each brush should not exceed 1mm; After the previous one is slightly dry, the next brush is carried out (just non-sticky, generally 1-2 hours apart), and the front and back two vertical cross brushes, the total thickness of the brush is generally 1-2mm; If the coating has already cured, moisten it with water first when applying another layer.

Curing: After 24 hours of construction, it is recommended to cover the coating with a damp cloth or spray water to cure.

Protection: Before it is completely dry after construction, please take protection against trampling, rain, exposure to the sun, sharp damage, etc.

Inspection (closed water test): Toilets, pools and other parts should be filled with water for 48 hours after the waterproof layer is dried (at least 24 hours in summer, at least 48 hours in winter) to check whether the waterproof construction is qualified. Lightweight walls must be tested for watering.

Do the protective layer. Make a protective layer on top of the waterproof layer.

The steps of waterproofing the bathroom are roughly divided into four parts.

1. Grassroots treatment. First of all, we must carry out ground treatment to ensure that the ground is clean, there is no debris pollution, the surface of the base is solid, there is no peeling and other phenomena, we also need to carry out ground leveling to ensure that the ground is flat, and there are no large defects and traces.

2. Brush waterproof coating. Before we paint the paint, we should ensure that the bathroom is clean and dry. The waterproof coating should be fully brushed and firmly combined with the base layer, so that there will be no bubbles, falling off and other problems.

When we paint, we should paint from the bottom up, first the wall and then the ground. Generally speaking, the waterproofing of the bathroom should be 180 cm, and the waterproofing of the non-shower wall should not be less than 35 cm. It is recommended to do 180 cm.

Brush paint not only pay attention to the height, but also pay attention to the thickness of the brush, the state stipulates that the waterproof paint should be coated to a millimeter thickness. The waterproof paint is brushed twice, and the second coat is to wait for the first coat to dry before you can start brushing.

3. Lay a protective layer. We also need to lay another layer of protective layer on the waterproof layer, and the protective layer should be completely covered with the waterproof layer, and it should be firmly combined with it, and there can be no cracks, bubbles, falling off and other problems.

4. Closed water test. Before doing the closed water test, all the sewer in the bathroom should be blocked, and a simple 25 cm high threshold should be made at the door of the bathroom, the bathroom should be sealed, and then 20 cm high water should be poured into the bathroom. After 24 hours, the water in the bathroom does not leak, and the toilet waterproofing project can be considered qualified.

Clean the bucket, apply waterproof materials, arrange the pipe seats, and test the water, and make a waterproof [insurance] after backfilling, and you can paste the bricks after there is no problem.

If you want to make the bathroom waterproof, then what are the steps to make the bathroom waterproof?

1. Grassroots treatment.

The base treatment is the basic work of waterproofing in the bathroom, and the ground should be leveled to ensure that the ground is flat and clean. If there are gaps or uneven ground, it may cause water leakage and other problems in the later stage.

2. Paving coating.

When paving the coating, it is necessary to use uniform force, not to miss the brush, lack of brush, to avoid falling off, cracking, etc., and it is not suitable for waterproofing in the season that is too dry. It is better to apply less than 1 mm thickness.

3. Lay a protective layer.

After the waterproof coating is done, be sure to apply the surface protective coating to protect the internal materials. The protective layer should be uniform, no cracks, and no falling off like waterproof coating.

4. Closed water test.

The closed water test is the last step in the waterproofing of the bathroom, and the waterproofing construction is checked. After the waterproof layer is completely dry, store water in the bathroom for more than 24 hours to see if there is any leakage.

Precautions for waterproofing the bathroom:

1. Waterproof height.

An acre of amusement hall must do a good job of wall waterproofing before laying wall tiles, the wall needs to do 30 cm high waterproof measures, if it is a non-load-bearing light wall, the whole wall needs to be waterproofed.

2. Waterproof coating.

The waterproof coating used in the toilet shall be a qualified product that meets the requirements of national and local regulations. In the corners of walls and floors, waterproof paint must be applied in place.

3. Waterproof floor tiles.

When laying waterproof floor tiles, Xunyin should first remove the original floor tiles, smooth the ground with cement mortar, and then carry out waterproof treatment, which can avoid uneven application.

4. Ground treatment.

If the floor tiles in the bathroom need to be replaced, after cleaning the original bricks, the ground should be leveled with cement sand slurry before waterproofing, so as to avoid leakage caused by uneven thickness of waterproof coating.

5. Detail processing.

When doing waterproofing, the joints should be painted in place, such as the joints between the bathroom wall and the ground, and the joints between the water and sewage pipes and the ground.

Waterproof work can be said to be the most important one in home decoration, especially for the bathroom waterproof work is the top priority, once there is a water leak, not only will they be harmed, but more importantly, the downstairs neighbors will also be affected. So how to do the best waterproofing of the bathroom for new house decoration?

Grassroots treatment. Grassroots treatment is to treat the garbage on the grassroots surface, including the dust on the ground and the wall, to be spotless, the surface must be smooth and smooth, and the yin and yang angles should be made obtuse or arc as much as possible. When painting the waterproof layer, the surface must be clean and flat, and pay attention to the floor drain, pipe root, drain port, etc., which are best rounded.

Apply a waterproof layer.

Brush the waterproof layer twice or more as much as possible, and each time you should apply it with an interval of 24 hours from the previous one.

Water storage test. After the construction of the waterproof layer is completed, it is necessary to do a water storage test, and wait for more than 24 hours without water leakage to indicate that the construction of the waterproof layer is completed.

Waterproof protective layer.

The last step is the construction of the waterproof protective layer, which usually requires 15mm-20mm cement mortar or 30mm-50mm concrete, and can be tiled after the construction is completed.

Bathroom waterproof coating purchase.

In fact, the most important thing in the waterproof construction of the bathroom is the purchase of waterproof coatings, if there is no professional waterproof team construction but to find a "guerrilla" to do, then you can provide their own waterproof coatings without their own bringing, of course, if it is a professional waterproof construction team, then these can not be considered.

Let's talk about a few precautions for the purchase of bathroom waterproof coatings!

In fact, the first thing you should look at is to see whether the packaging is bright, whether the font is clear, whether the manufacturer, and the certificate are complete.

If you use waterproof paint that contains toxic substances, your home will become a source of long-term release of toxins.

The texture of the home decoration waterproof coating is not precipitation, structural delamination, if there is no use.

The above is what Lanting's own workers summarize for you based on years of waterproof experience in decorating the bathroom in the new house, how to do the best waterproofing, as well as the purchase precautions for supplementing waterproof coatings for everyone.

1. Bathroom waterproof construction steps.

Step 1: You can use a slightly coarser cement to base the foundation first, and then brush the waterproof paint after the cement is dry. But in painting money, the ground should be flat and there should be no grooves. Water is then sprinkled on the ground to expel the gas from the small holes.

Step 2: Mix the powder and liquid material evenly, and brush the bubbles if there are bubbles when brushing the paint.

Step 3: When brushing the paint, brush it from the same direction, wait 1-2 hours, and then brush the second coat. When brushing the second layer, the direction of the brush should be opposite to that of the first layer, so that the best coverage can be achieved.

Step 4: You can brush it several times, which can increase the density and fill the gaps. Some people think that the more layers of waterproof paint the better, or even brush six or seven layers, but in fact, this is not good, the paint is too thick and easy to crack.

Step 5: Wait for one day before taking a waterproof test.

Step 6: When doing the waterproof test, you should first fight with your downstairs neighbor.

Say hello, then plug the drain, fill the ground with water, and wait an hour to ask your downstairs neighbor if there is a leak. If there is a water leak, the waterproofing layer should be rebuilt. If the waterproof test is qualified, it can be tiled.

2. Precautions for waterproofing in the bathroom.

1. In order to ensure that the bathroom floor is flat, it must be leveled with cement mortar, and then waterproof, so as to avoid leakage caused by uneven thickness of waterproof coating.

2. After leveling, when carrying out the construction of the waterproof layer, it is necessary to pay attention to fire prevention and waterproofing.

3. When doing waterproof construction, the floor drain, pipeline, and wall hole should be carefully inspected, and the root of the pipeline must be caulked according to the requirements during construction. 4. The waterproof treatment of the wall should also be noted, if the wall and the bathtub are adjacent, then the waterproof treatment height should be higher than the upper edge of the bathtub, and the shower should reach a height of 180cm.

5. Before doing waterproofing, pay attention to the correct position of the floor drain elevation.

6. To ensure that the sewer is smooth, the sewer pipes in the bathroom, including floor drains and toilet sewer pipes, must be kept unobstructed.