Waterproofing the floor in the bathroom - protecting ourselves from the flood and its consequences

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Preparation of the

foundation The first step on the way to laying the waterproofing is to dismantle the old floor covering and seal the joints between the floor slabs. The old screed is removed to the concrete slab, all garbage is removed and the building dust is removed. A clean base is primed to improve adhesion between the applied materials. All the seams between the slabs and the corners between the wall and the slab are covered with cement mortar.

Note! For cement works, cement M 100 can be used.

Special attention should be given to the place where the water supply stands are located, because this place is most susceptible to water flow. If the pipe is in the sleeve, the task is simplified, if it is not there or it is too short, then it will have to be done or increased. In this case, welding work is indispensable. Holes that break through for piping should be carefully removed. Use rags and mounting foam is prohibited, all should be closed with cement mortar.

Laying of waterproofing

Waterproofing is applied to the cleaned and primed surface. The first thing to be done is bitumen mastic. She misses all corners, and in places of water communications it should be poured into all the cracks. In addition, at a height of 20 centimeters, it is desirable to miss the walls. The task is to create bitumen and waterproofing something like a trough that will not let water pass. In the process of drying, the mastic should be monitored so that it does not get dust.

After drying the mastic, after a day, the installation of a layer of waterproofing begins. To do this, you can use ruberoid or special materials. The choice of material depends on your financial capabilities. Tip! On the choice of material for waterproofing is better to consult with a specialist.

The material is cut into pieces with a width of 30-40 centimeters so that it overlaps the walls. To impose a material on walls is very important, because without this it will not work to do the very "trough".In addition, neighboring bands should be lapped each other by 15 centimeters. When all the material is laid, it must be glued to the plate and walls. For better fixing, the floor needs to be heated with a gas burner. Having made a floor, in the same way we glue a material and to walls. At the end of the pipe again poured bitumen. Now a floor screed is made in the bathroom, on top of which is laid tiles.

Waterproofing the floor in the bathroom - avoiding the errors

In addition to all the above, you should add a couple of important nuances. The finished floor in the bathroom should have a level slightly lower than in the rest of the apartment. This allows in the event of a flood to retain water only in this room, and it does not spread through the rest of the apartment, because there is no waterproofing. Therefore, when calculating the thickness of cement screed, this moment should be taken into account.

Note! If there is no way to make the floor level lower, then you can put a high threshold at the entrance, which will act as a barrier.

The second point is not to listen to the advice of friends and "masters" on various Internet forums, which recommend the use of cellophane film as a waterproofing material. Whatever it is thick and thick, you will not be able to glue it to the concrete floor and walls. The cracks that remain will negate all the efforts for waterproofing. These two points are often a mistake of non-professionals, so consider them if you want to make a high-quality protection against moisture.

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