How do you do bathroom waterproofing?

Toilet waterproofing practices:

Basic material selection: new waterproof materials such as cement mortar, old ones such as acrylic are commonly used toilet waterproof materials. We should choose based on the principles of easy construction, environmental protection and good quality.

The first step in how to do bathroom waterproofing is to brush the joints in place. The joints between the walls and floors of the bathroom and the joints between the water and water pipes and the floor are the most problematic places. During the construction, you must urge the workers to deal with these corners and corners, so the waterproof coating must be applied in place.

It seems that there is a waterproof glue, and it is ugly to apply it.

Wuhan Oriental Shengqiang Waterproof Engineering Co., Ltd. will answer for you:

1. The ground uses cement mortar to find a slope in the direction of the floor drain, but the surface should be flat, the slope near the door is small, and the slope near the floor drain is large.

2. The pipeline passes through the root of the floor slab and near the floor drain, to strengthen the waterproofing, the pipe root building is sealed with sealing paste, and after the cement is smoothed with the foot guards, when brushing the waterproof coating, paste - two layers of glass cloth reinforcement layer.

3. The wall treatment should be clean and flat, without floating ash and small particles, and the junction of the wall and ground should be wiped with small original corners or slope corners, and the waterproof coating should be pasted with a reinforced layer of two-layer glass silk cloth.

4. The total thickness of the polyurethane waterproof coating film is above the requirements, and cannot be determined by the number of times alone. Pipe root, wall corner reinforcing layer first brush, placed at room temperature for four hours, and then a large area of brushing, scraping, no leakage, bubbling phenomenon, large-area painting to wait for a few days, curing and then brush the next layer.

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.

1. First of all, lay the toilet floor flat. Replace the floor tiles in the bathroom. Once you've chiseled the original floor tiles, make sure to level the ground with cement mortar and then waterproof.

2. Brush the joint into place. The joints between the toilet wall and the floor, as well as the connections between the upper and lower water pipes and the floor, can easily go wrong.

3. Wall treatment is also very important. In general toilet waterproofing, a waterproof coating of about 30 cm should be formed on the surface of the wall to prevent the accumulated water from spreading to the surface of the wall.

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Whether it is the renovation of a new house or the renovation of a second-hand house, as long as it involves the groundbreaking of the bathroom, it must be re-waterproofed, and the original waterproof layer should not be damaged in principle. The construction of waterproof coating waterproofing includes cleaning the ground wall and leveling, the yin and yang corners and the arc transition of the root of the water pipe, and there can be no dead ends.

1. Clean the surface: clean the base layer of the bathroom, including dust, sand, cement, etc.

>2. Grassroots treatment: the ground is leveled and sloped, and if there are cracks, hollows, and defects on the wall, they are smoothed with cement to ensure that the base is firm and smooth.

>3. Make an arc at the yin and yang angles: The yin and yang corners of the bathroom and the root of the water pipe should avoid dead angles, make an arc and straighten.

>4. Waterproofing of key parts: The parts with the greatest probability of water leakage are mainly the yin and yang corners and the root of the water pipe, in order to reduce the risk of water leakage, these parts should be waterproofed first.

>5. Waterproof for the first time: It is recommended to use a brush, not a roller brush, the brush is more detailed and has fewer holes.

>6. The second waterproofing: the second waterproofing and the first waterproofing should have a cross way, which can reduce the possibility of missing brushes. Waterproofing is generally done two to three times, and the thickness of each pass is controlled around the right.

>7. The threshold is also the key part of waterproofing: there is a possibility of water seepage at the threshold, so extra attention should be paid when brushing waterproofing. The control threshold is 2-3cm higher than the bathroom, and the threshold stone should be wet pasted, and it is best to paste the threshold stone first, and then focus on brushing down the side of the threshold stone.

Decoration must not only care about the shape, the good-looking skin is very simple, and the quality of construction is the last word, such as the waterproofing of the bathroom, the top priority.

If you don't want the downstairs neighbor to knock on your door after moving in, hurry up and take a look at how to do this bathroom waterproofing.

Ground treatment: 1. Brush the waterproof paint for the first time. Before construction, ensure that the construction site is clean and dry, and the waterproof coating should be coated with no omission, firmly combined with the base layer, no cracks, no bubbles, and no falling off. The coating height is consistent, and the thickness should meet the requirements of the product.

PS: Floor drains, wall corners, pipe heels and other joints should be painted with high elasticity and flexible waterproofing, because the joints between the wall and the floor of the bathroom will be displaced and are most likely to seep water.

2. Brush the waterproof paint for the second time. Note that there needs to be a certain time interval between the second waterproof coatings, and the second pass can only be carried out after the paint is dry, and the specific time depends on the coating. If the interval is too short, the waterproof effect will be greatly reduced.

3. Lay a protective layer. In order to prevent the subsequent construction from damaging the waterproof layer, it is necessary to lay a protective layer on the surface of the waterproof coating. The protective layer should be completely covered with the waterproof layer, no omission, firmly combined with the base layer, no cracks, no bubbles, and no falling off.

4. Closed water test. During the closed water test, the waterline at the ground point should not be less than 2 cm, and it should be stored for at least 24 hours, and it should be qualified only after observing that there is no leakage. If there is a leak, it needs to be redone, and you must not be negligent.

PS: How to do the closed water test.

1.Plug the floor drain.

2.Make a water barrier at the door of the bathroom.

3.Avoid direct contact with the ground when releasing water, and remember to cushion.

4.The waterline should not be lower than 2 cm, and it should be marked.

5.Keep it for at least 24 hours and go downstairs to see if there is any leakage (say hello to your neighbors in advance).

6.Don't be too troublesome.

Wall Treatment: 1If the bathroom has a shower room, the waterproof should be 180cm, and if there is a bathtub, the waterproof height of the wall adjacent to the bathtub should be 30cm higher than the bathtub

2. After the waterproof layer is done, a certain amount of time should be left to make the waterproof layer better integrated with the building, and then the protective layer on the waterproof layer and then paved with floor tiles.

4. Waterproofing is a systematic project, and the causes and treatment methods are different in each place. Materials are the foundation, construction is the key, and follow-up service is the guarantee.

The main attention to the following points when doing waterproofing in the bathroom! 1. Pay attention to ground leveling before waterproofing; The ground is oriented to the slope of the floor drain, cement mortar or bean stone concrete can be used, but the surface should be flat. The slope near the door is small, and the slope near the floor drain is large, so you can grasp it according to the specific situation.

The ground is uneven, and it may be uneven when applying waterproof coating, or the ground is easy to crack because of unevenness, which will crack with the ground even if the waterproof paint is applied. 2. Strengthen waterproofing at the root of the pipeline; The pipeline passes through the root of the floor slab to strengthen the waterproofing. After the pipe root building sealing paste is sealed tightly, and the cement is smoothed and the foot pads are smoothed, the glass wire cloth reinforcement layer is 1 or 2 layers when brushing the waterproof coating.

The same measures are taken near the floor drain. 3. Waterproof wall treatment; The wall surface is clean and flat, without floating ash and small particles, and the original corner or slope angle is wiped at the junction of the wall and the ground. When brushing waterproof coating, paste 1 2 layers of glass wire cloth reinforcement.

4. Coating film thickness; The total thickness of the polyurethane waterproof coating film is required to be more than millimeters, which cannot be determined by the number of passes. The pipe root and the corner of the reinforcing layer are brushed first, and after the surface is dried at room temperature for 4h, then a large area is brushed and scraped, and there shall be no leakage and bubbling, and the next layer is painted after 24h curing after large-scale brushing. 5. brushing; The façade is painted first, then the plane, and the direction of the next painting is perpendicular to the previous one.

When the final coating film is semi-cured, the coarse sand particles are thrown to facilitate the combination with the cement mortar in the future. The waterproof layer on the ground should be painted 300 wide outside the bathroom door. The waterproof floor waterproof layer should be 200 meters higher than the ground, and the wall waterproof layer of the bathroom with shower should be 1800 meters higher than the ground (L8 recommends waterproofing the full wall).