Waterproofing in front of the floor screed in the apartment with your own hands. Materials

If you decide to carry out major repairs of the apartment, then you need to start it with the arrangement of floors. If you need to lay new flooring, then before this you must definitely make a screed. However, this work should be prepared. That is, waterproofing must be done before screeding the floor in the apartment. How and how to do this, you will learn further.

What is the procedure for?

waterproofing before screed floor in the apartment

The presented process must be carried out necessarily. Such protection will ensure continued and efficient use of the premises. That is, in the event that you have problems with the water supply or faucet and the water flows directly onto the floors, you will have the opportunity to avoid conflicts with the neighbors that you flood. Without insulation, fluid seeps through even the toughest concrete layer.

Please note that waterproofing before screeding in the apartment should be carried out in all rooms, and not just in the kitchen and in the bathroom. The fact is that the concrete solution with which you will level the surface also contains a large amount of moisture. If the liquid evaporates gradually, which provides hydraulic protection, the screed will be more durable and better.

Thanks to this procedure, you will have the opportunity to protect the room from excess moisture, the spread of fungus and mold.

Coating features

waterproofing the floor in the apartment before screed

Waterproofing before screeding the floor in the apartment has certain nuances:

  1. If your home is located on the ground floor and there is no basement under it, then protection should be done as high as possible. The fact is that ground moisture contributes to the rapid destruction of concrete.
  2. Before insulation, the floor surface can be leveled with a special mixture.
  3. If there is a redevelopment of the room, which can be carried out with the demolition of partitions or walls, then only after it is laid the tread layer.
  4. It is best to make a complete waterproofing of the floor. Partial will not give the desired effect, and the water will still find where to leak.
  5. If there is a high level of humidity in the room, then you need to protect not only the floor, but also the walls.

Types of insulation

waterproofing the floor in the apartment before screed materials

Before waterproofing will be carried out before screeding the floor in the apartment, you need to understand what it is worth applying. There are such types of materials:

1. Roll. Most often in this case, roofing material or fiberglass is used.

2. Membrane. Most often, this material is polyethylene. It has a low cost, but it can not be called durable, since it quickly breaks.

3. A liquid solution of bitumen with additives. It has a fairly high cost, but is very easy to install. In this case, after drying, it forms a very strong layer that does not allow liquid to pass through.

4. Plastering. Such mixtures consist of cement and various additives. Naturally, such a substance will need to be diluted with water and applied with a spatula.

In addition, waterproofing the floor in the apartment before the screed can be applied in the following ways:

  • spread out;
  • spraying;
  • pouring;
  • coating;
  • by sticking.

Preparation for waterproofing

waterproofing the floor in the apartment before screed do-it-yourself

Now it is necessary to understand what needs to be done before implementing such a hydraulic protection. The preparatory work will include the following actions:

  1. Complete cleaning of the room from debris and dust. The room must be completely empty.
  2. Surface leveling with special repair mixtures.
  3. Preparation of tools and materials for work. For example, if you decide to use roll barriers in cold weather, you need to bring them into the room for warming for a while. Only then can you get started.

Features of roll protection

waterproofing the floor in the apartment before screed photo

So, we will examine in more detail the implementation of the procedure. The waterproofing of the floor in the apartment before the screed (the materials that are used in the work, you already know) should be done in stages. If you decide to use rolled materials, then the procedure for their installation has the following features:

1. First you need to spread the coating on the floor. For maximum protection, it is better to use a couple of layers. Please note that at the junction of horizontal and vertical planes, the canvas should go on the wall another 15 cm from the floor.

2. Note that such protection must be continuous. If you have to use several pieces of material, then it must be overlapped, and it should be 20-30 cm.

3. The product must be folded carefully in the corners.

4. In order for such a protection to be effective, it is better to coat the joints between the layers of the material with bituminous mastic.

How to make coating?

waterproofing the floor in the apartment before screed waterproofing

If more serious protection is required, then it is better to apply mastic. In this case, the surface leveling step can be safely skipped. You will not need any special equipment or additional tools. The waterproofing of the floor in the apartment before the screed (you can see the photo of the process in the article), thus, provides for the use of dry substances, the preparation of which requires water. In addition, ready-made liquid formulations may be used.

Naturally, before starting work, the floor must be thoroughly cleaned and covered with a primer layer. Next, with a special tape, you need to glue the corners and joints, where the probability of moisture leakage is highest. Next, prepare a solution.

It should be applied very carefully to the floor and walls, in the case of the latter - to a height of about 35 cm. For this, either a roller or a brush is used. Do not rub heavily on the floor or smear the composition. After setting the first layer, it must be moistened and a second applied. Moreover, they should be laid perpendicular to each other. It is enough to apply only three layers.

If the coating waterproofing the floor in the apartment before the screed ("Hydroizol", for example) is successful, you can fill it with prepared concrete.

How to insulate with a wet screed?

floor waterproofing before screed materials

As you can see, waterproofing the floor in the apartment before screeding with your own hands is quite simple. You just need to get the hang of it. Many readers are interested in how to make hydraulic protection with a wet concrete screed. It is very simple.

1. Clean the surface, and then apply a primer to it.

2. After it dries, it is necessary to detect and seal all cracks and holes with a sand-cement mixture.

3. Now you can start cement waterproofing. Use a trowel to apply it on the floor. Keep the same thickness throughout the area. After drying, apply at least 3 layers of mastic. For complete drying of such hydraulic protection, you will need at least 6 hours.

Please note that this method may only be suitable for rooms that differ in normal or low humidity levels.

Some nuances

Regardless of what kind of material for work you choose, each process has its own subtleties that should be considered:

  1. Each layer of mastic for good adhesion must be applied no later than 3 hours.
  2. If you decide to use rolled materials, then you can choose products on an adhesive basis. This will greatly simplify and speed up the installation process.
  3. Polyethylene or polypropylene barriers are most often used if they serve as the basis for a wooden floor.
  4. Mastic is the most commonly used material, which allows not only to protect the room from moisture, but also to partially level the treated surface.
  5. A feature of liquid insulation is considered to be that after drying it turns into a thin but reliable protective film. Its thickness should not exceed 3 mm. The presented material is applied with a brush, but such protection will have to be updated every 5 years.
  6. If you decide to choose the method of fusing the composition to the floor, then you have to purchase a gas burner. Naturally, this method is quite time-consuming and even fire hazardous.

As you saw, waterproofing the floor before the screed (the materials have already been examined too) is quick and easy. You can cope with this task without the involvement of specialists.


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