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How to repair the old coating on the floor

January 30, 2019
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If the wooden floor, stuck on the ground, is rotten, it is better to replace it with a concrete, covering it from above with a screed. Concrete floor with waterproofing with polyethylene membrane after covering ceramic and stone tiles or chipboard is dry, even and durable.

Actions before repair

Before the installation of the floor, it is necessary to lay communications under the floor in the casing, if necessary, lay plastic pipes of 100mm between the ventilation holes in the walls to ventilate wooden floors in the neighboring rooms, check whether the floors of the doors will interfere with the floors of opening.

For a concrete base, a mixture of sand and crushed stone cement is required in a ratio of 1: 2: 3 or cement with the finished mixture of sand and gravel in a ratio of 1: 6. For screed, prepare a cement-sand solution 1: 3. The need for materials in cubes is determined by multiplying the area of ​​the room by the thickness of the layer.

The base of the floor

The base of the floor is made of layers of gravel or crushed stone with a thickness of 100 – 150 mm and sand 30 – 50 mm thick. The gravel layer is compacted by a metal tamping, a layer of sand – wooden. A membrane film is laid on the sand, a concrete layer with a thickness of 100 mm and a screed – from 40 mm on top.

The level of clean floor is set by the levels of the doorway and the floor of the adjacent room. A meter above the level on the walls, it is necessary to apply the lighthouse line. A pure floor is applied below the meter below. Below this line to the thickness of the screed at the level of the top of the concrete layer, nails are clogged into the walls, between which the cord is pulled.

Concreting

Concrete and solution are prepared in a concrete mixer, which can be rented. At the first kneading, the concrete mixer by 2/3 is loaded with a dry mixture, then add water to optimal plasticity, controlling the consumption of materials. In the future, the already known amount of water is poured first, then the mixture is filled up.

Begin to lay concrete from the far from the door of the wall. The concrete layer after grasping for two weeks should gain strength in a wet state, after which a layer of screed is laid on top.

Lay concrete with stripes of 1 meter wide. Stripes are separated by rails, the upper surface of which is located at the level of the cords. When working, so as not to damage the membrane, boards lie on top of it.

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drivingnewsusa January 30, 2019 January 30, 2019
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