Waterproofing is a hidden project in home decoration and is easily overlooked by the owner. However, if the waterproofing project is not done during the renovation, many hidden dangers will be left. Leakage in kitchens and bathrooms can affect the relationship between neighbors, and seepage in the walls can easily lead to moldy and rotten wood furniture, affecting the home environment. There are a lot of owners who are now starting renovations. Professionals remind the industry to follow up on the waterproofing project to avoid many problems in the future.
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Cause of water leakage
Only by clarifying the cause of the leakage, we have the right medicine and pay attention to the construction details. According to the person in charge of the Longfa Decoration Engineering Department, leakage occurs generally for the following reasons: 1. The building itself has cracks; 2. After the waterproof layer is completed, it is destroyed by the downstream process; 3. The inferior waterproof material is used; , did not do as required waterproof layer or waterproof layer thickness is not enough; 5, did not do the node processing as required; 6, when doing waterproof base surface does not meet the requirements, there are sand, loose and other phenomena; 7, different shrinkage of pipelines and building materials Create a gap.
Construction details should pay attention
Level the ground first. Experts suggest that if you want to change the floor tiles of the bathroom, after the original floor tiles are cut, you must first level the floor with cement mortar, and then do waterproof treatment. This will prevent leakage of the waterproof coating due to uneven thickness.
Joints should be brushed into place. The seams between the bathroom wall and the seams between the upper and lower water pipes and the ground are the most prone to problems. During construction, you must urge the workers to handle these corners. All waterproof paint must be applied in place.
Wall treatment is also very important. In the general bathroom waterproofing treatment, a waterproof coating of about 30 cm in height is also required on the wall to prevent water accumulation from passing through the wall. The waterproof paint on the wall of the shower area should be painted. If you install a bathtub, the height of the waterproof coating should be higher than the upper edge of the bathtub.
Make sure the floor drain is the lowest point before brushing and waterproofing
After checking in for a while, some owners discovered that the entrance to the bathroom door was leaking, causing the walls of other rooms to be damp. If wooden floors were to be laid, it would lead to moldy and deformed floors. Why?
According to experts, the reason leading to water seepage outside the bathroom is not because the waterproof is not done well, but because the floor drain of the bathroom is not the lowest point when it comes to waterproofing, causing the waterproof layer to store more water and seep out. As shown in the figure, if the floor drain is not the lowest point before waterproofing, a small amount of water that passes through the sand and ash layer will not flow to the floor drain but will spread outward. If it is a long time, it will spread to the bathroom.
Therefore, the construction team must check whether the floor drain is the lowest point of the bathroom before doing waterproofing. If the tested floor drain is the lowest point, it can be waterproofed and then tiled. If the leak location of the tested ground is high, you must first use a cement mortar to make a good slope, and then do waterproofing. This layer of sand under the sand will naturally seep to the floor drain.
Waterproof test to do a good job
After the waterproof project is completed, close the door and the water outlet, fill the toilet floor with water to a certain height, and make a mark. If there is no obvious drop in the water within 24 hours, there is no leakage in the roof of the house, especially downstairs. Waterproof is qualified. At the same time, all sewers in the bathroom, including floor drains, plumbing fixtures, etc., should be kept unobstructed. In this way, we can fundamentally avoid the occurrence of the "flooded seven army" tragedy.
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