instructions for waterproofing a private house + Video

It is considered a great convenience to have your own cellar for storing crops and supplies. To protect the cellar from moisture penetration and to keep supplies and from decay, they make waterproofing.

Waterproofing the cellar basement begins at the construction stage.

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Waterproofing conditions

If you decide to build the cellar yourself , then they must have information and know that there are three types of cellars :

• above ground;
• semi-buried;
• buried.

• The deeper the cellar, the more serious waterproofing it needs.
• Before starting construction, it is necessary to find out at what depth the water table is located, as well as the type of soil and the depth of freezing in winter.
• If concrete with waterproofing additives is used in the construction of the cellar and the water table is not high, then additional waterproofing is not required.
• If the water table is not high, it will be sufficient to make a concrete floor with a concrete thickness of 60-80 millimeters. Then plaster and paint the walls.

  Painting must be done with lime. In this case, a clay castle will act as waterproofing, on top of which two layers of roofing material are laid.

• If the groundwater level is high, a portable cellar is most often made.

Types of waterproofing

From the method of penetration of groundwater is used one of the methods of waterproofing.

There are three main types.

Anti-pressure .
Provides protection against pressurized groundwater.

Anti-capillary .
Protects against water seepage through the pores. Appears as permanent moisture without visible damage on the walls.

Unpressurized .
Provides protection against the appearance of water during prolonged precipitation, when moisture appears during the period of rains and melting snow.

Materials for waterproofing

Depending on the method of waterproofing, materials are also selected ...

For anti-pressure insulation, roll materials of roofing material and euroizol are used.

For anti-capillary isolation, penetrating solutions-penetrates are used, these are water-insoluble crystals that clog the pores.

For non-pressure insulation, bituminous materials , various mastic materials or concrete solutions are used.

Implementation of waterproofing

Anti-pressure

The most difficult to implement is anti-pressure waterproofing.

Under the pressure of groundwater, the insulation will move away, as a result of which it is necessary to strengthen both the floor and walls as much as possible.

In this case, you will have to sacrifice the space inside the cellar by increasing the thickness of the walls and floor.

Preparatory work

1. First, water is pumped out and the room is dried by organizing forced ventilation and heating with heat guns.
2. Next, the surface is cleaned from old paint and plaster, and degreased. Cracks and seams are cleaned of dust and mortar residues, treated with a primer.
3. Then the walls are plastered, the proportions are one to two of cement to water.

   If a large amount of work, then you can consider the option machine plastering walls.

Waterproofing work

1. The first layer is a self-leveling layer, using polymer - cement mixtures, with which all pores and cracks are filled.
2. After drying, the second layer is laid, which is made of roll waterproofing and poured with a layer of concrete 5 centimeters thick. Floor insulation is made to fit the walls at least 30 centimeters.
3. Roofing material is glued to the bituminous mastic in two or three layers.

   It is laid with an overlap of 10-15 cm and the layers are glued alternately vertically and horizontally.

4. In order for the waterproofing not to leave under the influence of moisture, it is pressed with a special wall made of bricks. The masonry is done in one brick and then the brick wall is covered with cement plaster.
5. Also, do not forget about the joints of the walls with the ceiling, they also need to be coated with bituminous mastic in several layers. Moreover, each new layer can be applied after the previous one has dried, and this will take about two hours.

6. All outlets must also be sealed with bitumen mastic, a sealing sleeve or concrete .

Anti-capillary

To reduce moisture penetration through cement walls and the floor, they are treated with penetrate in several layers. This composition penetrates into the structure of walls and floors by 25 cm. Some manufacturers indicate a figure of 90 cm. This happens when special reagents are added to the concrete composition and at the stage of pouring the foundation.

It is easy to apply such a coating:

1. The old coating is removed and the surface is treated with a special metal brush;
2. Slots and cracks are chased, and from the seams remove the solution up to 2 cm.
3. It is not necessary to dry the cellar beforehand, it will be better to moisten the concrete, but so that the water does not flow down streams from the walls.
4. The special mixture is applied with a wide brush or roller. As the first layer dries up, the next one is applied.

To achieve the desired effect, it is recommended to apply the waterproofing mixture in at least two layers.

Due to the antibacterial and non-toxic composition of the waterproofing mixture, it is used to treat the cellar there where the food will be stored. By blocking moisture in the outer layers of concrete, the walls will not be covered with frost and its frost resistance will be increased even in severe frosts.

Unpressurized

The preparation principle for all types of liquid waterproofing treatment is the same:

1. The room is dried, the walls and floor are cleaned of debris and dust;
2. First of all, the floor and the joints of the floor and walls are treated, and only then they begin to apply mastic.

   Applying the mastic starts from the wall farthest from the door;

3. Fill the gaps with mastic with a layer of 2 cm;
4. Apply the mastic with a second layer, lighter texture;
5. Make a screed on the floor, after drying of waterproofing;
6. On the walls, a reinforcing mesh is fixed and plaster is applied.

Apply it in a thin layer of about six mm . For this reason, it will not be able to retain a large amount of moisture.

For such waterproofing, epoxy or bitumen mixtures with the addition of polymers are used.

Important Criteria for Waterproofing Basement

1. All waterproofing is applied to the dry surface of the walls, the exception is for penetrating mixtures and bituminous mastic;
2. Heated basement is not recommended to be painted with oil paint;
3. Insulation is necessary not only for cracks, joints, but also ventilation holes, communication inputs and stairs;
4. All surfaces are treated with a primer , and problem areas like this twice;
5. All cracks must be buried;
6. Floor insulation should overlap on walls by 30 cm;
7. Waterproofing in rolls is laid in several layers, then vertically, then horizontally;
8. Liquid insulation is applied at least two layers, with an interval of two hours;
9. The ground floor in the cellar is sprinkled with crushed stone and poured with concrete, and only then waterproofing is laid;
10. The need to equip the basement with proper ventilation;
11. When a mushroom is formed as and mold in the basement, its walls and ceiling must be treated with an antiseptic.

We have described all methods of waterproofing the cellar and basement. We hope you find this information useful. Good luck and success!

( 1 grade, average 5 of 5 )