The technology of finishing the wet facade allows to minimize the formation of cold bridges, since the facing layer is a uniform, monolithic coating. Wall cladding wet way allows to shift the dew point outside the walls of the building, therefore, prevents the accumulation of condensation and increases the service life of the structure.

Wet facade installation steps

Preparatory stage

Surface preparation for the installation of a wet facade includes cleaning the walls of the building from contamination. If it is planned to finish laying a wet facade on top of an existing finish, then the existing finish must be checked for load-bearing capacity and adhesive properties, that is, make sure that it can withstand the weight of the wet facade and ensure its reliable adhesion to the surface.

If outer cladding the building has badly damaged areas, then they will need to be replaced. Existing irregularities are leveled with a rough plaster layer. If the walls are finished with hygroscopic material, then they must be thoroughly primed before installing a wet facade.

Removing existing plaster from door slopes and window openings will also increase the adhesion of the wet facade to the outer surface of the building walls.

Installation of the basement profile

To fasten the heat-insulating layer, as well as to protect it from moisture, a basement profile is mounted. In addition, the profile strip allows you to evenly distribute the load on the structure from the thermal insulation boards.

Mount the profile as follows:

• The distance from the ground to the basement profile should be 40 cm. A 3 mm temperature gap must be left between the basement profile and the horizontal slats of the frame;

• The profile is fixed with self-tapping screws and dowels, which are placed every 10-20 cm. If the mass of the heat-insulating layer is significant, then fasteners should be placed more often;

• A special corner profile is mounted on the corners of the building.

Insulation laying

As thermal insulation materials used for the installation of a wet facade, use or.

Siste
MA insulation of a wet facade implies the observance of some rules. The insulation is mounted on special adhesives, which should be applied in a uniform layer along the entire perimeter of the thermoplates, stepping back from the edge of 2.5-3 cm.

On the empty space of thermoplates adhesive composition applied pointwise. As a result, about 40% of the material should be covered with glue.

Thermal insulation boards are mounted on the walls using a rolling method that resembles a device brickwork... Thermal insulation boards must be pressed tightly not only to the surface to be insulated, but also to neighboring boards. Insulation is laid in rows.

After the thermal insulation layer has dried (after about 3 days), it is necessary to additionally strengthen thermal insulation layer... To do this, use dowels, which, depending on the porosity wall material go deeper into the wall by 5-9 cm.

Before installing the fasteners, you must first make the slots, and the pressure sleeves must be flush with the surface of the heat-insulating layer.

Installation of a reinforcing layer

The reinforcing layer must be installed 1-3 days after installation

thermal insulation layer. First of all, it is necessary to strengthen the slopes of windows and doors, the outer corners of the building and the vertical joints of the slopes with lintels. After that

the even surfaces of the walls are strengthened.

Reinforcement is carried out as follows:

• An adhesive composition is applied to the heat-insulating layer, on which a reinforcing mesh made of fiberglass is mounted.
• A uniform layer of glue is applied over the fiberglass mesh, which must completely cover the structure.

As a result, you should get a flat surface. The thickness of the reinforcing layer should not exceed 6 mm, while the fiberglass mesh is positioned in such a way that the distance between it and the outer surface does not exceed 1-2 mm.

Exterior decoration

The reinforcing layer should dry out within 3-7 days. After that, the walls of the building are plastered with facade plaster mixtures.

TO exterior decoration buildings have quite high requirements. The plaster layer should be distinguished by high moisture resistance, vapor permeability, resistance to external destructive factors. The facade of a building must withstand not only temperature extremes and precipitation, but also take up mechanical loads.

The quality and properties of plastered surfaces directly depend on the conditions of the plastering work. It is necessary to apply plaster at a temperature of 5 to 30 degrees above zero. Moreover, if plastering work are carried out in dry and rather hot weather, then the surface to be plastered must be additionally moistened with water.

To preserve qualities facade plaster it is necessary to plaster the walls in calm and cloudy weather, since the wind and ultraviolet radiation negatively affect the adhesion and strength of the plaster layer.

Installation of a wet facade on the basement of a structure

When installing a wet facade on the basement of the structure, there are some features that should be taken into account during the installation process.

Before installing a wet facade on the basement of the building, it is necessary to provide high-quality waterproofing of both the basement itself and the blind area. To insulate the basement, you should use a heat insulator that has a minimum degree of moisture absorption. Hygroscopic insulation such as mineral. Basalt, limestone, dolomite and slag wool are not used to insulate the basement.

Thermal insulation boards are additionally reinforced with dowels only at a height of 30 cm from the ground.

It is necessary to reinforce the base in two layers.

For facing the basement, use facade or ceramic slabs... You can plaster the basement of the structure with a facade mosaic plaster mixture.

Video tutorial on technology installation « Wet facade»..

February 26, 2018
Specialization: facade decoration, interior decoration, construction of summer cottages, garages. The experience of an amateur gardener and gardener. He also has experience in repairing cars and motorcycles. Hobbies: playing guitar and much more, for which there is not enough time :)

Wall decoration using the "wet facade" technology is very simple on the one hand, but on the other, it contains a lot of important subtleties. Therefore, I suggest that you familiarize yourself with all the nuances of its device. This information will help you insulate the building with high quality.

What is a wet facade

A wet facade is called the decoration of the outer walls on top of the insulation. The name itself implies the use of liquid finishing materials, which include wet plaster... The latter is a dry mixture that requires mixing with water before use.

The wet facade cake consists of several layers:

• Insulation. It is also glued to the walls with a wet method, i.e. with help liquid glue... True, the plates are additionally fixed with special disc dowels;
• Reinforcement layer. It is a layer of glue several millimeters thick, which is reinforced with fiberglass mesh. The glue functions as a rough plaster;

• Decorative layer... It is a decorative plaster that provides the surface of the walls with a specific texture and texture. Paint is applied over the plaster layer, unless, of course, the plaster itself is tinted.

Insulation using this technology does not require large financial costs, since wet Decoration Materials are cheaper than panels or, for example, facing brick... At the same time, the installation is simple and fast enough.

Choosing thermal insulation

For the installation of a wet facade, a tight and durable slab insulation, since it has to perform a load-bearing function - to withstand the wind load, as well as the load from the plaster layer. In addition, the insulation must withstand shock loads, since it is protected only by a thin layer of glue and a reinforcing mesh.

Therefore, only the following thermal insulation materials can be used:

• Styrofoam (expanded polystyrene). It can be said classic material for a wet facade, as it is inexpensive and effective. True, only slabs with a density of at least 25 kg / m3 are suitable for these purposes;

• Mineral wool. Another popular material that is fire resistant, environmentally friendly and vapor permeable. Mineral wool must have a density of at least 125 kg / m3

You can also use extruded polystyrene foam. It is stronger and more durable than foam, but has poor adhesion. For a long time it was believed that walls should not be insulated with this material for wet finishing.

However, to solve the problem of poor adhesion was invented by mechanical processing surface with sandpaper or float. Some manufacturers produce boards with an initially rough surface.

Installation technology

Materials (edit)

In addition to insulation, the following materials should be prepared:

• Adhesive for thermal insulation boards;
• Disc dowels - the length should be 4-5 cm more than the thickness of the insulation;
• Primer;
• Reinforcing fiberglass mesh;
• Plaster corners;
• Starting bar;
• Decorative plaster;
• Facade paint.

The thickness of the insulating layer must be at least 5-7 centimeters. For the best effect, it is advisable to glue 10 cm thick slabs.

Preparing the walls

A wet façade requires high-quality surface preparation. This operation is performed like this:

Illustrations	Actions
	Dismantling of attachments. Dismantle all elements on the facade surface that may interfere with the installation of the insulation - window sills, cornices, antennas, etc.
	Removing plaster. If the walls are covered with plaster that has begun to flake off and fall off, it must be removed.
	Padding: Shake the facade primer and pour into a flat container; Apply the primer to the wall surface in a thin layer with a brush, roller or spray; Wait for the surface to dry and repeat the procedure.

Insulation installation

Now you can start installing the insulation. Step-by-step instruction to complete this operation looks like this:

Illustrations	Actions
	Installation of the starting plate. Along the perimeter of the building, it is necessary to fix the basement profile, from which the installation of the insulation begins. Use dowels to fix the profile. In the process of fastening the profile, be sure to make sure that it does not deviate from the horizontal.
	Glue preparation: Pour room temperature water into the bucket; Gradually pour the adhesive into a bucket and mix with a mixer; Bring the glue to a doughy consistency.
	Bonding boards of the first row: Apply glue to the board. If the quality of the walls allows, cover the entire surface of the insulation with a thin layer of glue using a trowel. If the walls are uneven, apply the glue in lumps; Insert the slab into the starter bar, press it against the wall and align with the vertical using a level; Apply glue to the second board, position it against the first and glue. Thus, glue over the entire first row.
	Installation of subsequent rows. Start with half of the slab for the second row to offset the vertical joints. Also, tie the slabs in the corner. If the slab of the first row was flush with the wall, then the slab of the second row should protrude at a distance equal to the thickness of the insulation. Thus, cover all walls with insulation.
	Pasting of openings. Cover the openings with insulation 1-2 cm thick.
	Installation of dowels: Use a puncher and drill a hole through the insulation to the depth of the dowel plus 5-10 mm; Insert the poppet sleeve into the hole; Drive the provided nail into the sleeve. Finish it so that the head of the sleeve goes into the foam by a few millimeters. Install dowels at the corners of each plate, as well as one dowel in the center. Plates located on the slopes do not need to be fastened with dowels. The installation of the dowels can only be done after the glue has completely hardened.

Preparation for reinforcement

Before proceeding with the finishing, you must complete the following steps:

Illustrations	Actions
	Surface leveling: Apply a level and rule to the surface of the walls; Rub the irregularities with a special float.
	Insulation of cracks. Blow out the cracks with glue foam or fill in with scraps of insulation.
	Bonding corners. Glue aluminum perforated corners along the perimeter of openings and at all external corners. For gluing the corners, it is used glue mixture, to which the insulation plates are glued.

If you can reinforce with foam without priming, then before reinforcing extruded polystyrene foam the surface must be coated with an adhesive primer.

Reinforcement

Rough finishing of the walls pasted over with insulation is carried out as follows:

Illustrations	Actions
	Reinforcement of openings: Cut the reinforcement mesh according to the dimensions of the slopes, taking into account the curvature at the corners (about 10 cm); Cover the slope surface with glue using a trowel or trowel; Attach mesh; Iron the mesh with a spatula so that it is completely covered with glue; Thus, reinforce all slopes; After the surface has hardened, apply another layer of glue about 2-3 mm thick. To make the glue fit better on the mineral wool and not roll, slightly moisten the surface with a sprayer.
	Wall reinforcement: Reinforce the walls in the same way as the slopes - first apply glue, then glue the mesh. Be sure to provide overlap and curl at the corners; After the surface has hardened, apply another layer of glue.

Decorative plastering

Now you can proceed to the final stage - decorative plaster:

Illustrations	Actions
	Padding. Cover the facade with soil as described above, i.e. in two passes.
	Decorative plaster application: Mix the mixture with water according to the instructions on the package; Apply the coating in a thin layer using a trowel; When decorative plaster starts to harden, rub it with a trowel.
	Painting. If the plaster is not tinted, paint it as follows: Prepare the paint - stir and pour into a flat container; Use a facade roller and apply a thin layer of paint; Wait for the coating to dry and apply a second coat of paint.

This completes the installation of the wet facade.

Output

Now you are familiar with the technology of installing a wet facade and you can insulate your home on your own. And if you have any difficulties, write comments, and I will be happy to help with advice.

February 26, 2018

If you want to express gratitude, add clarification or objection, ask the author something - add a comment or say thank you!

The "wet facade" system is a popular technology for furnishing and insulation facade walls... It is used in private and high-rise housing construction, in the construction of new and reconstruction of old buildings. The main advantages are ease of manufacture and good thermal insulation and strength characteristics.

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Wet facade price

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Turnkey wet facade: composition and stages of creation

Wet facade cladding includes the following layers:

• thermal insulation pad. It is either high density mineral wool or 50–100 mm thick foam. The difference between one insulation and another is in the price per meter and in some parameters. Foam boards cheaper, easy to install, have low thermal conductivity. Mineral wool is more difficult to process, but their vapor permeability coefficient is much higher, and therefore the walls "breathe";
• reinforcing layer. As a rule, this is a special construction mesh which is supplied in rolls 1 meter wide. Thanks to such a grid, plaster mortar can be fixed to the insulation;
• adhesive composition for fastening a heat insulator and a reinforcing mesh. When installing a wet facade, the insulation and the mesh are first mounted on the wall with glue. For this, universal and specialized adhesives are used. The former are suitable for the installation of heat-insulating materials and reinforcing mesh. The second - only for the reinforcement of the insulation.
• mechanical fastening for thermal insulation boards. In this layer, "umbrella" type fasteners are used - plastic dowels with a wide head. One section of insulation takes about 5 pieces of fasteners. The purpose of the "umbrella" is additional fixation material when arranging a wet facade.

Finishing materials are used for finishing. Traditionally, these are decorative facade plasters.

TYPES (FINISHING WET FACADE):

Arrangement of walls using this technology includes the following stages:

1. Measuring the curvature of walls. At the preliminary stage of the construction of a wet façade, the degree of curvature of the surface is determined. For this, plumb lines are hung and horizontal threads are pulled, which serve as beacons. When the system moves along the wall, the space for insulation and glue is measured.
2. Fixing the insulation to the glue. The binder is applied to the foam or mineral board in small slides in the middle and along the edges. After that, the material is glued to the wall. When installing a wet facade, it is advisable to fix the polystyrene to the wall at a distance, the joints should be small in length. The seams are filled with glue immediately during the installation of the insulation.
3. Installation mechanical fasteners... At this stage, plastic umbrellas are mounted. The puncher makes holes in the wall, the dowels are hammered in with a hammer. It is important to correctly position the fasteners. According to the technology, they do this: one dowel is in the middle of the slab, and the other four are in the corners. To save on the cost of the facade, you can drive an "umbrella" into the seam between the insulation plates.
4. Reinforcement. The mesh is glued to the foam or mineral slabs by pressing into the glue. The binder is applied to the insulation, after which a mesh is placed on top and pressed down. Remains of glue are removed with a spatula.
5. Plastering. The final stage of arranging a wet facade is surface plastering. Often rough finish applied in several layers to carefully align the wall. After the putty has dried, the finishing can be applied.

Build a building for its all-season effective use not enough. To provide future users with a comfortable environment and optimal temperature indoors, special technologies are used.
For insulation of facades of buildings and structures, they can be used different ways... Each of them has its own advantages and disadvantages. However, all of them are aimed at creating such conditions so that the warmth remains inside the house for as long and as long as possible.
One of the popular technologies is a finish called a wet facade. This unusual name is due to the fact that when implementing this finishing method, only liquid or semi-liquid adhesive solutions are used.
What is a wet facade
The wet facade is a multi-layer structure. Each layer is made from an individual material and performs its own special function. General design wet facade provides insulation and a beautiful appearance building, consists of the following layers:
1. Bearing wall... It forms the base of the entire structure, as well as the base for all layers of the wet façade. The outer parts of the walls must be trained. For this, it is removed from them old plaster, then they are washed with water under high pressure followed by drying. After all, the walls are leveled with putty.
2. The second and perhaps the most important layer. He is thermal insulation... It is this layer that creates the conditions for keeping warm and performs the functions of sound insulation. Mineral wool is used for its device. Foam-based materials are also suitable.
3. The third layer is strengthening. This layer consists of an adhesive on which a construction reinforcing mesh is applied. It must be completely covered with glue. First, corner window and door slopes, outer corners, various docking areas, and only after that you can proceed to the flat sections of the walls.
4. The fourth layer is finishing. First, plaster is applied to the reinforcing layer, which is used for outdoor work. It must be resistant to any aggressive external influences.
Plastering is allowed at a positive ambient temperature, but not higher than +30 degrees. Then you can apply various technologies decorative finishes, from simple (painting walls) to more complex (using expensive materials).
Advantages
The technology of insulating a wet facade has gained wide popularity due to the fact that it minimizes cold bridges, which are characteristic of other methods. Dew points are moved out of bounds internal parts at home, that is, outside. Therefore, even with large drops outside and inside temperatures, condensation will not accumulate on the walls inside the house.
In addition, there are a number of other advantages of using it:
- the ability to provide insulation of buildings to the level required by regulatory sanitary standards;
- allows you to increase thermal insulation properties up to 30%;
- due to the fact that all layers of the wet facade consist of light materials, it is not required to additionally strengthen the foundations of buildings;
- since the outer parts of the walls are insulated, there is no reduction in the internal area of ​​the rooms of the house;
- promotes moisture evaporation;
- inside the house are created comfortable conditions- warm in winter and cool in summer;
- the possibility of using the technology not only in the construction of new facilities, but also in the reconstruction of old buildings;
- through this technology you can use modern species design solutions and give the building an attractive and aesthetic appearance;
- it is easy to install and (if necessary) to repair.
Disadvantages of wet facade technology
This method has and weak sides... First of all, it is the need to use materials that belong to one manufacturer. Most often, materials from one or two manufacturers already selected for their properties are used, which are perfectly combined, while having optimal time service.
The second drawback is the impossibility of installation when sub-zero temperatures and high humidity.
The third disadvantage is that the master must have the appropriate qualifications, since the technology is difficult to work with and requires knowledge of a lot of subtleties.

The cladding of the facade is usually combined with its insulation, since up to 40% of the heat escapes from the house through the walls. A widespread technology that allows you to combine thermal insulation with finishing is a wet facade, insulation in combination with plaster.

This technology owes much of its popularity to its low cost, but this is not the only reason, there are others. For example, due to the diversity finishing the building can be personalized. Consider the types of wet facades.

Types of wet facade depending on the insulation

Such a facade is a layered structure. Materials are arranged in the following order:

• heat insulating layer;
• reinforcing layer. Provides strength and high-quality adhesion of the insulation to the cladding;
• priming;
• plaster. It has two functions: decorative and protective (protects the insulation from ultraviolet rays and precipitation).

The types of wet building facades differ primarily in thermal insulation:

• polystyrene foam. PPS - porous organic material;
• mineral wool - the material consists of basalt fibers;
• combined.

Features of PPP:

• flammability. It decreases with the addition of a flame retardant during the manufacturing process, but does not completely disappear. Manufacturers offer self-extinguishing brands as heaters;
• combustion toxicity;
• vapor permeability;
• non-hygroscopicity;
• low density, light weight.

Features of mineral wool:

• non-flammability, non-flammability (NG group);
• vapor permeability;
• hygroscopicity;
• environmental friendliness (artificial ingredients are usually not used in the manufacture);
• the mass is greater than that of the PPS.

Types of finishing wet facades

In addition to thermal insulation, the types of wet facades of houses differ in plaster. All recommended formulations are divided by the type of binder into several groups:

• acrylic, the binding component of which is organic matter- acrylic resin. Water dispersion composition. Climatic resistance is high, vapor permeability is average;

• mineral, astringent - cement. Dry mix, diluted with water. Good vapor permeability, non-flammability, lowest price;

• silicate - potassium liquid glass... Released ready-made. Good vapor permeability, compatibility with many materials. Relatively high price, limited colors. Only silicate primer can be used with this plaster;

• silicone - silicone resin. Released ready-made, can be put on any base. The most expensive, the most durable. Vapor tightness, non-hygroscopicity, dirt-repellent properties. Only silicone primer is suitable.

The combination of thermal insulation with the outer cladding is not arbitrary: the finished wet facade system consists of materials adapted to each other with high level adhesion. Wherein:

• polystyrene foam is used in combination with organic or silicone compounds;
• mineral wool - with mineral or silicate plaster;
• combined systems - also usually with a mineral composition.

Types of house finishes wet facade depend on the design decision:

• Bark beetle (Reibeputs);

• "Fur coat" (Rollputz);

• "Lamb" (Kratzputs);

• plaster paint (Streichputs), etc.

The finished coating differs in texture, which depends on the size of the filler grain, application techniques, and the tool used.

For your information

Exclusive, unique species wet facades of private houses are obtained due to the different composition of plasters and various techniques finishing.

For example, the technique of applying prints to laid plaster is popular. Any sufficiently solid object can be a template for a print.

The composition of the solution includes various pigments, chips, mother-of-pearl. Eventually finished surface can imitate anything: marble, any ornamental stone, brick, even cork and wood.

More simple and cheap way finishing - painting. Another option is wall cladding with ceramic tiles.

"Heavy" and "light" types of wet house facades

Another classification. In it, the types of wet facades of buildings differ in the technology of fastening the insulation.

The "hard" way

"Heavy" method (some experts call it "floating", by analogy with glueless floor laying). At the stage of installing the insulation, glue (or cement mortar) is not used: dowels with hooks are hammered into the base, insulation is placed on them, the mesh is fixed with pressure plates. And only after that do they proceed to plastering.

With this method, the base and heat-insulating plates function as if separately, which helps to compensate for their deformations, incl. essential.

The method is called heavy not because of the hardware used for fastening, but because a thick one is needed to overlap the mesh plaster layer, 2-4 centimeters.

The plus of this technology is that there are no high requirements for the preparation of the base, the minus is that it is more expensive. It can only be used with durable materials walls that can withstand heavy loads: brick, expanded clay concrete, aerated concrete, etc. It is used on moving soils, in seismically hazardous areas, at critical facilities, in poor climatic conditions.

"Light" type of wet facade

Usually when we talk about a wet facade, we mean the "light" type. He is better known. Insulation plates are planted on a special glue with cement in the composition, fixed with mushroom dowels.

For your information

This is an inexpensive and universal option: you can even perform such a facade using OSB or moisture-resistant plywood of a frame house.

Mineral wool with a density of 150 kilograms per cubic meter or PPP not less than 35 is used as a heater. Covering plaster - no thicker than 8 millimeters, the entire facade does not exceed 1 cm in thickness. The minvat facade is slightly more in weight, but it has an advantage over the PPS - it "breathes".

The cost of the "light" version is much lower than the "heavy" one, but it requires a thorough surface removal.

The cost of various types of wet facades

The cost of the finished facade depends on:

• from the material of the insulation and its brand;
• from the type of plaster;
• the technology used;
• from the complexity of the relief of the facade walls and the amount of work.

A plus additional work- delivery of materials, preparation of the base, erection of scaffolding, etc.

Approximate order of prices for the main types of turnkey wet facade:

• with mineral wool- from 1.7 thousand per square;
• with expanded polystyrene - from 1.9 thous.

Breakdown by type of work (approximate):

• soil - from 60 rubles / m2;
• fastening of a heat insulator - from 470 rubles / m2;
• reinforcement - from 350 rubles / m2;
• plaster - from 410 rubles / m2.