How to waterproof the bathroom when building a house? What should I pay attention to?

First use waterproofing agent mixed with cement mortar to do the base layer of the bathroom again, so as to avoid leakage caused by waterproof coating due to uneven thickness and wait for drying, and then use dustproof water trembling agent mixed with cement ash in the first surface layer in the brush, so that the main purpose is to plug the small holes produced after the first drying. The joints between the bathroom walls and floors and the joints between the water and water pipes and the floor are the most likely places to ask questions. During construction, the joints should be painted in place.

In the waterproofing treatment of the general bathroom, about 30cm of waterproof paint is also applied to the wall to prevent water from penetrating the wall. If you use two screens, the two walls that are connected should also be painted. If you use a bathtub in your home, the height of the waterproof coating on the wall adjacent to the bathtub should also be higher than the upper edge of the bath pie.

After the construction of the toilet is completed, all the sewers of the toilet are blocked, and a 25cm thick "threshold" is built at the door, and then 20cm high water is poured into the bathroom. After 24 hours, you will check the surrounding walls and floors for leaks.

1. Bathroom waterproof construction steps.

Step 1: You can use slightly coarser cement as a primer first, and wait for the cement to dry before brushing the waterproof coating. 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.

Bathroom waterproof construction plan and precautions:

1. Brush the waterproof coating for the first time: ensure that the construction site is clean and dry before construction, 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.

2. Brush the waterproof paint for the second time: pay attention to the first.

First, the second waterproof coating needs to have a certain time interval, and the second time can only be carried out after the first coating is dry, and the specific time depends on the coating. If the interval is too short, the waterproof effect will be greatly reduced.

3. Paving 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 water at the highest point of the ground 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 it must not be negligent.

Qinglong toilet waterproof construction plan:

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.

2. Brush the waterproof paint for the second time. Note the first.

First, the second waterproof coating needs to have a certain time interval, and the second time can only be carried out after the first coating 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 water at the highest point of the ground should not be less than 2 cm, and it should be stored for at least 24 hours, and it will be qualified only after observing that there is no leakage. If there is a leak, it needs to be redone, and it must not be negligent.

Substrate treatment, cleaning, leveling layer, bonding layer, detail additional layer, acrylic waterproof layer, water storage test, protective layer construction, secondary water storage test.

Generally, it is very simple to do waterproofing in a new bathroom, as long as you pay attention to the simple aspects.

Step 1: Clean the base and walls.

Step 2: Do a good job in hydropower infrastructure projects.

Step 3: Do the first level of rigid waterproofing.

Whether the waterproof effect of the bathroom is good or not, you can do a bathroom water maintenance experiment. The state stipulates that the water maintenance test time in the toilet is 24 hours, in fact, this is still not safe, because the infiltration effect of water molecules is a slow process. The toilet water maintenance time must be registered, and it takes 72 hours.

The fourth step is to do the second level of elastic waterproof coating.