Waterproofing a bathroom in a wooden house

A bathroom in a wooden house can be attributed to the so-called "problem" places, which give the owners a lot of trouble. And, indeed, the high humidity of this auxiliary room has a destructive effect on adjacent rooms, making them unsuitable for permanent housing. That is why reliable waterproofing of the bathroom in a wooden house is a prerequisite for creating normal conditions for living in it.

The complexity of protection from moisture of individual elements of wooden buildings due to the fact that the use of traditional waterproofing materials (roofing material, for example) is not always effective and does not provide complete insulation.

However, with the advent of modern high-tech materials, providing effective protection of wooden structures from moisture, all the issues of waterproofing such a bathroom are solved quite simply. In the article we will look at ways that not only help to perform high-quality waterproofing, but also transform the look of this room.

Choice of protective material

In the domestic market of building materials, there is currently a large selection of waterproofing materials, which (according to the technique of their application) are conventionally divided into the following groups:

• paint coatings in the form of mastics and emulsions, made on the basis of bitumen and polymers and creating a reliable moisture barrier after application;
• glued materials on the same basis, having a roll or film version (a special heated mastic is used for gluing them onto a wooden surface);
• cement-based liquid formulations (hot bitumen, pitch);
• special impregnating coatings of water-repellent cement with the addition of chemical reagents and ground sand.

The basis for the application of waterproof liquid compositions is a pre-laid waterproofing sheet or roll type with a layer of reinforced fiberglass on top of it. This combination of protective materials forms an ideal seamless coating that meets all requirements for waterproofing.

Impregnating materials after application to the surface of wood penetrate into the top layer of the latter and make it waterproof.

This type of waterproofing is very rarely used in residential areas.

Note also that when organizing work on the insulation of a bathroom in a wooden house, it is assumed that the waterproofing of the floor, its walls and the ceiling is separate. Consider the order of each of these operations in more detail.

Floor waterproofing

Isolation of the floor in the bathroom with their own hands is the most time-consuming of the procedures included in the complex of waterproofing works organized in a private house. But at the same time you can always use the option of waterproofing, the implementation of which will be quite cheap and simple.

The order of work performed with the above choice, as a rule, is presented in this form:

• first, a wooden piece of PVC film (or the thinnest linoleum), the edges of which are bent with an overlap on the walls, is laid approximately 15–20 cm on the wooden flooring, which has been previously cleaned of foreign objects and small debris, as waterproofing.
• in order to align the laying plane in the corners, the material is cut and then poured with silicone sealant. The edges of linoleum for reliability are fixed on the walls by means of a liquid bitumen composition or mastic;
• after that, the linoleum is laid reinforcement in the form of a fine-meshed mesh, which then becomes the usual cement-sand screed.

Floor waterproofing по этому способу может быть выполнена и из известных рулонных материалов, содержащих в своей основе битум (из рубероида, например, или же с использованием наплавляемой кровли). Но подобный подход будет более затратным, особенно в том случае, если вы примените в качестве основы современные материалы высокой стоимости.

When using roofing material, the surface of a wooden floor with a roller or brush is first treated with mastic, and then sheets of material with an overlap of about 20–25 cm are placed on it. sheets. In this case, the used blanks are stacked in several layers so that each of them is perpendicular with respect to the previous one.

It is not recommended to use open fire in a wooden room.

In this case, as well as when using linoleum, it is necessary to make a small overlap of the material on the walls, and carefully cut the cut corners with the same sealant.

Preparing walls for finishing

Bathroom walls in a wooden house, as a rule, are laid out either from round logs (rounded), or from ordinary timber. When the frame structure of the building, they can be trimmed with edged board or OSB plates, for example. In all cases except the last, special preparation of walls is required, which is reduced to their leveling with the purpose of subsequent laying on the surface of ceramic tiles or PVC panels.

Before you make this part of the preparatory work, in the first place, you will need to prepare a special frame for drywall. Waterproofing measures are reduced in this case to the use of a special moisture-and vapor-proof film, laid between sheets of drywall and a wooden wall.

When finishing walls with OSB, special preparation for applying a layer of waterproofing is not required. In this case, a painting method of forming a protective layer is most often used, with preliminary preparation of the wall surface by sealing the joints formed on the surface. In this case, the used sealant and the waterproofing material itself should belong, as far as possible, to the same class, that is, to have a similar basis. Protective mastics or emulsions are applied to the finished surface in several layers with alternating direction of movement of the roller or brush (horizontally and vertically).

After they dry, an absolutely impermeable waterproofing coating is formed, on which you can put your chosen finishing material.

It is advisable to proceed to the protective treatment of the shower room walls in a wooden house only after waterproofing its floor.

Ceiling insulation

The technique of waterproofing the ceiling in the bathroom is not much different from the already described methods and also depends on the class of material used in its arrangement. So, it will be enough to apply a special water-repellent impregnation on the ceiling of the usual lining; at the same time, a vapor-tight film should be placed under the frame used for covering. In any other version of the ceiling you can use mastic or special impregnation used to protect the base from moisture.

In conclusion, I would like to note that a competent approach to solving the problem of waterproofing a bathroom in a private wooden house will allow you to avoid a number of troubles associated with leaks that cause dampness in the basement and the formation of smudges on the walls of adjacent rooms. The method described in the article is not the only one. Depending on what kind of interior you plan for the bath, the methods of waterproofing will be different.

Video

Watch the video about the arrangement of the bathroom and bathroom in a wooden house: