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There will be a variety of reasons for the failure of the waterproof project in the bathroom, which requires professionals to judge the problem in the end, and then deal with the specific problem in a targeted manner. If it is because of the construction problem, see where the main water seepage and leakage, and then specific operations, such as water seepage on the wall of the shower area, you need to repaint the waterproof coating.
There are also waterproofing material problems and uneven settlement or cracking of the bathroom, which requires starting from scratch. From the reasons for the failure, we can see that when doing waterproofing, we need to ask a professional construction team, we need to be patient and careful, and we also need to have high-quality waterproof coatings. If you are looking for an easy-to-use, environmentally friendly waterproof material, I can recommend you Dunlop's flexible waterproof coating, Dunlop is a brand specializing in waterproofing for kitchen and bathroom, and its waterproof coating is....
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Then many friends will pay attention to bathroom waterproofing. The waterproofing of the bathroom is indeed a very critical part, and if there is a problem with the waterproofing of the bathroom, it is indeed very troublesome. Why do you think he sells so well, if it is not good, there must be a problem with the quality, consumers are not fools, but Guan Jian still relies on the master to do it, be careful, at least do three sides, and the waterproofing on the project before decoration and occupancy is generally done twice, waterproof coating or polypropylene.
However, due to the complexity of the engineering process and the rapid requirements of the construction period, the quality expectations cannot be met, coupled with the damage of the later decoration, it is difficult to bear the purpose of waterproofing. Bathroom waterproofing to do twice, the ground and wall should be waterproof, before the tile should be done, after the waterproof inspection should be done, the inspection must be re-done and the most important thing is to do the waterproof experiment after the completion of the test. It is to fill the water, and then leave it for at least 48 hours or more, see if the leakage is not leaking, if the water leaks, you need to do it again, if it does not leak, you don't need to do it again, you can do it once, and it is a waste to do it twice.
<> is not so complicated, first brush a waterproof paint and then spread a layer of polypropylene cloth, be sure to brush all over the brush strictly do not miss the brush, after the photo and then brush the waterproof paint again, the wall is 30 cm high, don't brush high.
The waterproofing of the bathroom is very important, otherwise it is prone to dampness and leakage. Many owners don't know how to do the waterproofing of the bathroom, how many times to do the waterproofing of the bathroom? Precautions for waterproofing in the bathroom?
Water-based waterproof coatings are useless when soaked in water for a long time, so choose oil-based polyurethane waterproof coatings.
It is better to have high requirements for the ground of oily polyurethane construction, and it is not possible to sand evenly and densely painted on the base surface, and each brush should not be too thick, otherwise it is easy to layer and not easy to dry. When brushing, it should be noted that if the paint (especially the primer) has precipitation, it should be stirred evenly in time, and each time the dipping material is entered, stir a few times at the bottom of the barrel.
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Do it at least three times, because this number is a good quality assurance, and we should try at least three times when we do anything, which can get a relatively stable result.
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The bathroom is generally done at least twice for waterproofing, each time the water is full, and then let it stand for 24 hours to see if there is a water leak, if the water leaks to do it again, if it does not leak, do not need to do it.
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I think it should be done 2 or 3 times, so that we can fully detect whether the waterproof effect is good or not.
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1. The closed water test is also called the water storage test, which should be filled with water and the water should have sufficient volume. The water storage depth of the water storage test should not be less than 20mm, the water storage height is generally 30-100mm, the water storage time is 24 hours, and the water surface has no obvious drop to be qualified.
2. This test is generally done on the roof, toilet or room with waterproof requirements. In the early stage of the water storage test, it should be inspected downstairs every 1 hour, and every 2-3 hours in the later stage. If water leakage is found, the water storage test should be stopped immediately, the waterproof layer should be re-improved, and the water storage test should be carried out after the treatment is qualified.
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In general, such as the commonly used "general-purpose K11 waterproof slurry" can be tested 24 hours after normal construction. The test time is 24-48 hours. Once the waterproofing of the restroom is complete, you must wait for the coating of the waterproofing paint you choose to fully solidify before testing the water.
After the bathroom is waterproofed, it needs to be thoroughly dried, so that it can do the closed water test, you can contact the residents downstairs in advance, so that the leakage can be informed in time to avoid unnecessary losses of the downstairs residents When doing the closed water test, the depth of water storage can not be less than 20 cm, and the time can not be less than 72 hours, and the water level does not fall is qualified.
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In general, after the waterproofing is done, the water storage test can be carried out after 24 hours, and the water storage test can be observed every 6 hours, and it is generally observed 4 times, that is to say, after 24 hours of water storage, see if there is any leakage, and then you can do the water test or observe it after the rain to see if the drainage is smooth and whether there is water accumulation.
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The state stipulates that the waterproof layer should be tested for at least 24 hours, and the waterproof layer should be at least one meter high, because now everyone is bathing in the bathroom, if the waterproof layer of the surrounding wall is too low, it will produce water seepage on the wall when taking a bath, and over time it will produce water seepage downstairs, so the waterproof layer of the wall should be as high as possible, and it can not be too high when testing the water.
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After the waterproof layer is dry, the water test is generally 48 hours.
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After the construction personnel do a good job of waterproofing engineering, it is best to accumulate more water to test the water after it is dry, and the water test time can see the progress of the project, if it is not urgent, it is best to test the water for a long time of 3 to 4 days or even a week, so as to ensure that there are no worries in the future.
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After the waterproof construction is completed, the water injection height is 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.
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It's irresponsible to paint it on the corner of the wall, even if it doesn't flow now, it will still flow in a short time. Be sure to knock off the 70 cm around the running water, or use Lu Ting glue to coat a thick point and then stick the floor tiles, but the cement of the floor tiles must be coated with waterproof cement and good glue on the ground. But there are many good glues and waterproof materials.
Be sure to make it one with the original object carefully.
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According to the Beijing Municipal Engineering Construction Standard "Technical Code for Waterproof Construction of Kitchens, Toilets and Bathrooms" No. DBJ 01-105-2006
Standard requirements: the water storage height of the first backfill pit is 20-30mm, and the water storage time is more than 24 hours.
The water storage height on the second facing or screed is 20-30mm, and the water storage time is more than 24 hours.
It is recommended that the water storage test should be 48-72 hours.
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It is best to check the effect of waterproofing for 3 days.
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1: Do a good job in hydropower infrastructure projects.
From a safety point of view, it is better to go up the bathroom water pipes and wires than to go down. However, many "guerrillas" are greedy for labor-saving, and water and electricity go to the ground, and even dig grooves and round holes in the bathroom.
2: Clean the base and walls.
The house is decorated with waterproof, involving a balcony, a kitchen, a bathroom, but the focus is on the bathroom. First of all, use a small metal hammer to knock on the wall and ground, if you find a "poof" empty sound, it means that there is a hollow drum inside, and you must knock out all the hollow drum parts. Then carefully clean the four wall base layers and the floor, pull out the nails, clean up the miscellaneous garbage, rinse it with clean water, and then let it dry.
3: Do a good job of rigid waterproofing.
All kinds of sewer pipes in the bathroom can not be changed, try not to change them; In case of change, you must not use cement mortar to fill the pores, and you must plug the leakage king to fill it three times.
4: Do the second level of elastic waterproof coating.
After a long time in the new house, the hard plugging king elastic coating will be cracked alive due to settlement, thus losing the waterproof effect. Therefore, it is necessary to add a second insurance - elastic waterproofing coatings.
1. Try not to damage the original waterproof layer.
In the newly delivered high-rise building, the waterproof layer is usually made in accordance with the relevant standards, but in the process of decoration, some bathroom bathing equipment and a variety of water and water pipelines may be re-planned, and then the original waterproof layer of the building may be damaged. Qinglong Construction recommends that friends who need decoration should try not to damage the original waterproof layer, and if it is damaged, it must be repaired in time to avoid leakage in the future.
2. Re-paving floor tiles should be waterproof on the ground.
If you need to replace the original floor tiles in the bathroom, after chiseling off the original floor tiles, you must first level the ground with cement mortar, and then do waterproof treatment, so as to avoid leakage caused by uneven thickness of the waterproof coating.
3. The wall must be waterproof.
Water will splash on the nearby wall when bathing in the bathroom, and if you don't do waterproofing, the wall will be prone to mildew, so you must do a good job of waterproofing the wall before laying wall tiles. Qinglong construction suggests that the wall should not be less than 30 cm when waterproofing, and if the load-bearing light wall is right, the entire wall should be waterproofed.
4. The grooves of the water pipes in the wall should also be waterproof.
During the construction process, when pipes, floor drains, etc. pass through the floor slab, it is necessary to carefully construct the waterproof layer around the hole. Buried water pipes in the wall, so as to achieve reasonable planning, lay water pipes are all made larger than the diameter of the groove, the groove is plastered smoothly, and then the groove is brushed with polyurethane waterproof coating.
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Bathroom waterproof test about 24 to 48 hours or so, we need to wait until the coating of the waterproof coating is completely solidified before the water test, in the bathroom water storage is about 20cm high, wait for 24 to 48 hours, we can see whether the water level in the bathroom has been significantly reduced, or go downstairs to see if there is leakage, if not, it means that the waterproof effect is good.
What specifications need to be done for waterproof construction? 1. Grassroots treatment.
Before carrying out the waterproofing treatment, the ground must be leveled first, which may cause cracking and leakage caused by the uneven thickness of the waterproof coating. Floor drains, wall corners, pipe heels and other joints should be painted with high elasticity and flexible waterproof key paint, if there is a toilet displacement, be sure to brush the dark corner of the joint between the wall and the ground several times, this place is the most prone to water leakage. When treating the wall, there shall be no trachoma and loosening.
2. Waterproof for the first time.
The brushing is carried out in the order of from the inside to the outside, first up and then down, and then the left and right brushes are painted, the brushing should be uniform, and the thickness of the brushing should meet the needs of the waterproof products used. The recommended height of the bathroom is 1800mm, and if the bathroom is separated from dry and wet, the recommended waterproof height of the wall in the dry area is 1200mm.
3. Waterproof for the second time.
When painting the second waterproof, it is necessary to pay attention to ensure that the first waterproof is completely dry and film-forming before it can be carried out, and the direction of the first waterproof painting is opposite.
4. Closed water test.
For the closed water test, the room should be filled with water, the water should have sufficient volume, and the water storage depth should not be less than 20mm, generally 30-50mm, and the time should not be less than 24 hours. After that, you must go downstairs to the neighbor's house to observe whether there is any water leakage on the roof, and no water leakage is considered qualified.
5. Waterproof layer protection.
In order to prevent the subsequent construction from damaging the waterproof layer, a protective layer needs to be laid on the surface of the waterproof coating after the closed water test. 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. Normally, a thin layer of cement slurry is used for protection, and the thickness is not more than one centimeter.
The key is to try to let workers step on less and protect them as much as possible during later construction.
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Dear, I'm glad to answer for you, how many times do you do two waterproof and closed water tests in the bathroom? A closed water test will do, dear. The water test is also called the water storage test, and the water should be filled with water and the water should have a sufficient volume.
The water storage depth of the water storage test should not be less than 20 cm, the water storage time should be 24 hours, and the water surface should not drop significantly to be qualified. This test is generally done on the roof, bathroom or room with waterproof requirements. In the early stage of the closed water test, you should go downstairs to check every 1 hour, and in the later stage, you should go downstairs to check every 2 to 3 hours.
If the ruler is closed and there is water leakage, the closed water test should be stopped immediately, the waterproof layer should be improved again, and the closed water test should be carried out after the treatment is qualified. Kiss <>
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The waterproof test should be done for at least 24 hours, and theoretically the longer the better, within 72 hours. Before doing the waterproofing test, you need to notify the neighbors downstairs, and then inject water with a height of more than 2 centimeters, and observe the height of the water surface during the test, and if there is a leak, you need to do it again. If there is no significant change in the water surface after 24 hours, the waterproofing is successful.
What should be paid attention to when doing waterproofing in the bathroom 1. Before waterproofing the bathroom, it should be noted that the base layer should be cleaned, and there should be no dust, release agent and other sundries. And also to ensure that the surface is solid, there is no peeling, chalking, bulging.
2. Before waterproofing the bathroom, special treatment should be done for drainage holes, pipe roots, yin and yang corners and some cavities. Moreover, the cement mortar on the ground must be leveled before waterproofing, so that there will be no leakage.
3. When the bathroom is waterproofed, the wall should also be waterproofed, and these places about 30 cm high from the ground should be waterproof to avoid water seeping into the wall. If the wall of the bathroom is a light wall, then the entire wall of the bathroom should be waterproofed. If there is a bathtub, the waterproofing layer on the wall is higher than that of the bathtub.
Special attention should be paid to the waterproof treatment of its edges and corners, and its waterproof layer should be strengthened.
4. Whether there is ground leveling and decoration before the bathroom floor waterproofing generally involves replacing the floor tiles of the bathroom, so after removing the original floor tiles, the ground must be smoothed with cement mortar first, and then waterproof treatment is done to avoid leakage caused by uneven thickness of waterproof coating.
5. Whether the waterproof part is the floor and wall of the bathroom (the height is not lower than or full), the floor and wall of the kitchen and balcony (the height is not lower than that, if it is a first-floor residence, all the ground and wall (the height of the basement and all the walls should be waterproof and moisture-proof. In addition, wall treatment is also important. In the general waterproofing treatment of the bathroom, even the wall that is kept dry away from the water flow should be coated with a 30cm high waterproof paint to prevent the ground water from penetrating the wall.
If the walls of the bathroom are non-load-bearing lightweight, the entire wall should be coated with waterproof paint. If two shower screens are used in the bathroom, the two adjacent walls should be covered with waterproofing, and if a bathtub is used, the waterproofing of the wall adjacent to the bathtub should be higher than the top edge of the bathtub.
6. Whether the seams are painted 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, the owner must urge the construction personnel to deal with these positions, and the waterproof coating must be painted in place.
7. Whether the thickness of the waterproof layer is sufficient. The thickness of the waterproof layer directly affects its waterproof life, and if the thickness of the waterproof layer is reduced, it is equivalent to shortening its waterproof life.
8. Whether there is a waterproof and closed water test. When the waterproofing construction of the bathroom is completed, all the drains are blocked, water is injected 5-8 cm above the floor beam, and the surrounding walls and floors are checked for leakage after 24 hours. This waterproof experiment.
It is the key to ensure the quality of sanitary and waterproof construction projects, and more rigorous decoration companies will be erected for 48 hours.
Bathroom leakage generally does not involve the wall, if you knock on the wall, you only need to pay attention to whether it is a load-bearing wall. However, the waterproofing of the ground should be expanded. The location of the bathroom after expansion must be waterproof!
Generally, the waterproof base layer should be 20-40cm high on the wall, and the main test scope is the place where a large number of water stains will be splashed in the rain. >>>More
The first step, before the waterproof treatment of the bathroom, the first thing is to level the floor level of the bathroom, the ground is uneven, when the waterproof paint is painted, it may be uneven, or the ground is easy to crack because of unevenness, which will crack with the ground even if the waterproof paint is applied. >>>More
Directly on the waterproof paint. And I personally recommend that in the shower room, a position with a lot of water, don't brush to a meter as required, and brush it directly to the top. Stay on the safe side.
When the bathroom is waterproof, it is generally best for you to do it when you are about to finish it, and it is best not to do it in the rainy day, so it is said that the waterproof time is in the dry winter, and it is best to do it in November and February.