The technology of mounting a "wet façade", calculation of costs

The technology of mounting the "wet facade" has gained wide popularity in the domestic construction market. This method of insulation has a number of advantages over other methods. This article will detail the sequence of installation works, from which you will learn the features, advantages and disadvantages of this process.

The composition of the "wet facade"

This technology is quite complex, it is a multi-layered structure, which includes:

- effective insulation - expanded polystyrene, mineral wool;

- primer - glue layer;

- reinforcing compound for the coupling of the finish coat and thermal insulation;

- mesh alkaline or reinforcing;

- finishing layer.

As a heater choose materials with a minimum value of thermal conductivity, most often use expanded polystyrene. Reinforcing mesh protects the facade from cracks, and the finish layer - from the impact of the environment.

Stages of work

The device "wet façade" occurs in several stages:

- preparation;

- device socle profile;

- installation of thermal insulation;

- installation of reinforcing layer;

- finish.

At the first stage, the installation of a "wet façade" requires careful preparation of the substrate. Walls need to be cleaned of various contaminants. Damaged areas are replaced by whole, and unevennesses are leveled with plaster. It is desirable to test the surface on the bearing and adhesive characteristics. If the facade cladding is made of strong absorbing materials, then the walls need to be primed in addition.

After preparation, the "wet facade" of the house requires the installation of a profile strip. This design distributes the load of the thermal insulation boards and prevents moisture from entering.

Styrofoam or mineral wool is installed with the help of a special adhesive compound. It is desirable to apply the mixture pointwise in the middle, and along the edges - a broad band. The technology of mounting a "wet façade" is made by the type of "brickwork" masonry, that is, by a method of construction. Stacking is made from the bottom up, excess glue is removed. After two or three days, the construction is additionally strengthened with dowels, beforehand making nests for them.

The reinforcing layer is carried out a couple of days after the installation of thermal insulation boards. First, treat all joints and corners, only then smooth surface. The reinforcing layer is applied to the plates, then an alkaline mesh is laid, then the surface is smeared with the same adhesive composition.

Necessary materials

The technology of mounting a "wet façade" involves the use of various materials. Facade systems are divided into three main groups:

1. Organic - using expanded polystyrene, silicone decorative plasters and organic reinforcing mass.

2. Mineral: Mineral mixes, slabs and silicate finishing plasters are selected for installation.

3. Combined.

Decorative finishings

This stage of installation works is given special attention. The insulation of apartments implies an attractive appearance of the structure. This is why decorative finishing is needed. In addition to the aesthetic function, the plaster protects the facade from the effects of the environment.

Decorative decoration is different, some prefer neutral shades, someone chooses a bright wet facade of the house. Mixtures are textured, designed to create a relief, thin and imitate costly materials. Very often the insulation of apartments or private houses is accompanied with a pattern or pattern on the slabs that emphasize a particular architectural style.

Advantages of a "wet facade"

This method of warming has a number of positive sides, we list the main ones:

- small surface heating;

- noise insulation;

- reduction of heating costs in winter due to effective thermal insulation;

- protection of load-bearing structures and facades from environmental influences, precipitation, etc .;

- creation of optimal heat transfer;

- creation of a favorable microclimate;

- sealing of seams and joints;

- universality, that is, it is possible to mount panels of any building construction, including making a brick house;

- a variety of finishes;

- the possibility of restoration of the facade in the future;

- increase the life of the building due to the distribution of the load on the foundation.


Warming of a brick house, apartment or any other construction object using the technology "wet facade" has its own negative aspects. The main disadvantage of this method is certain working conditions that must be strictly observed. Installation can be made at low humidity and at a temperature of not less than 5-7 degrees of heat. During precipitation, it is extremely undesirable to insulate the facade with a "wet" method. However, modern builders found a way out: in winter, the working surface is covered with a film and insulated with air by means of special guns, maintaining the necessary temperature. It should be borne in mind that drying the finish layer can even damage the fog.

Mounting recommendations

Warming of facades is best done if the following conditions are met:

- air humidity - not more than 80%;

- air temperature - + 5-30 degrees Celsius;

- work in a place protected from sunlight;

- use plasters and mixtures from one batch, especially if you work with colored compounds;

- after applying the plaster layer, protect the surface from drying out and moisture ingress for 2-3 days;

- it is necessary to install the structure, observing the prescribed distances, for example, there should be a gap of at least 45 cm between building scaffolds and slabs.

Common mistakes

Unfortunately, builders very often make a "wrong" wet facade. Photos of such substandard work can easily be found on specialized resources. In order for the process to be carried out qualitatively, it is important to take into account the listed recommendations. Common errors:

- Installation of heat insulation boards in adverse conditions. As a consequence - the destruction of the facade, the detachment of parts of the structure, the appearance of dirt.

- Docking plates is not loose. In this case, splits and cracks appear on the finish layer.

- Poor preparation of the substrate leads to collapse of the thermal insulation layer.

- If the reinforcing mesh is mounted on a layer of thermal insulation is not overlapped, then in the future on the facade cobweb-like cracks appear.

- If you do not use reinforcing strips of reinforcing mesh in the corners of the openings during the work, then, most likely, diagonal cracks will appear on the surface in the near future.

- Unevenly applied adhesive layer leads to the same consequences.

- The appearance of an uneven surface of the facade and cross-shaped strips is due to poor performance of installation, namely, non-compliance with geometry.

- The hillocks on the facade appear due to the protruding dowels.

- If the outer decorative layer falls off, then most likely, the wrong kind of vapor-proof plaster is chosen.

- If during the works you did not use stubs for the ends of the windowsills, then as a result you will get a short-lived "wet facade". Photos of the destruction of the decorative layer in the places of tint can be seen below.

- Mechanical damage to the plates form "bridges" of cold. Because of this, the fungus and mold appear on the inner layer.

- Any deformation seam will adversely affect the decorative layer of the plaster, forming cracks.

Calculation of costs

Many construction companies are installing a "wet façade." The price of works directly depends on the cost of components. The latter also varies in a wide range. Most of the costs will go to the insulation and dowels, their total cost is 50% of the total. Comparing the mineral wool and styrofoam, you can safely say that buying the first component will cost you a large amount.

Installation work is also paid separately. Below are the average prices for Russia:

- installation / dismantling of scaffolding - 150-200 rubles / sq. M. M;

- a soil of deep penetration - 50-70 rubles / sq. M. M;

- installation of insulation and leveling of the surface - 450-500 rubles / sq. M. M;

- base layer with reinforcing mesh - 250-300 rub / sq. M. M;

- finishing plaster - 250-350 rubles / sq. M. M;

- priming of walls with quartz sand - 50-100 rubles / sq. M. M.

The device of decorative elements is paid separately, the price depends on the complexity of the architectural decor and the wishes of the customer. Installation of a decorative stone on a facade and a socle costs 800-1000 rbl. / Sq. M. M. In order to compile a full cost estimate, a specialist should visit the construction site, since the cost of work is affected by a number of factors:

- Surface area;

- the condition of the facade (the presence of damage, the condition of the walls, the number and depth of cracks, irregularities, etc.);

- complexity of work;

- features of the facade design (number of door and window openings, their configuration);

- amount of material.

Also, the total cost of works will be affected by the trade mark of the materials used, the thickness of the insulation, the choice of the type of plaster. For example, the cheapest are considered compositions on a cement basis or mineral. A little more expensive are acrylic and polymer plasters. Silicone and liquid glass mixtures are the most expensive.

Warming the "wet facade" is a modern way of creating a cozy and warm atmosphere in the house. If certain necessary requirements are met, the design will ensure a favorable microclimate for a long time.

Similar articles





Trending Now






Copyright © 2018 en.birmiss.com. Theme powered by WordPress.