What is needed for the installation of a "wet facade"? Wet façade Installation instructions for wet façade.

The main reason for the cold in houses and the overpayment for heating is heat loss through the building envelope. Mostly construction is carried out from brick and concrete. They do not retain heat well. Unprotected from atmospheric phenomena, the facades of houses are quickly destroyed, their appearance deteriorates. These problems are solved with the help of do-it-yourself wet facade technology.

Wet facade at home

A wet facade is a basic technology for insulating houses, protecting facades from the negative effects of the environment. Includes wall cladding with insulation and subsequent plastering.

The plaster mortar is prepared on a water basis, therefore the word "wet" is in the name. The standard version of the wet facade consists of 6 layers:

adhesive mixture;
insulation sheets;
plastic anchors;
plaster stack;
a layer of facade plaster;
decorative plaster or facade paint.

The technology has a number of advantages and disadvantages compared to other facade cladding options.

Advantages:

Good thermal insulation. A wet facade with a thickness of 50-100 mm insulation layer is equivalent to two rows of ceramic bricks.
Ease. Absence metal frame makes it possible to apply this technology in residential, public and industrial buildings. Stress on bearing walls minimum.
Soundproofing. The insulation dampens most of the sounds and shock waves.
Integrity. The device of a wet facade, in contrast to frame technology does not include installation of profiles. There are no cold bridges. Heat does not escape from the interior.
correct dew point. If you follow the installation recommendations, then the condensate will fall outside the building. Internal walls don't get wet.
Strength and durability. Wet facade reliably protects building construction from destruction. Its service life is 15-20 years.
Maintainability. The entire care of the surface of the facade is the renewal of color and the filling of cracks.
Easy installation design. Each homeowner will be able to master the rules of wet facade insulation and do it with their own hands.

Flaws:

Restriction on work at negative air temperatures. Cannot be performed Finishing work outdoors in a wet way in late autumn and winter.
The need to use only high quality Construction Materials factory production and follow the instructions for their use. Violation of work production technology, poor-quality material can cause peeling of the plaster layer or destruction of the facade.

We select a heater

This is the base of the façade. It must be durable, lightweight and fire resistant, remove excess moisture (vapor permeability). The most common materials are expanded polystyrene and basalt mineral wool.

Let's compare which insulation is suitable for him:

Durability - Expanded polystyrene has an average strength. Density stone wool much higher.
Lightness - the mass of basalt mineral wool is slightly higher than that of expanded polystyrene. This is offset by its margin of safety.
Vapor permeability - mineral wool outperforms expanded polystyrene by an order of magnitude, which practically does not conduct moisture.
Fire resistance - unlike foam, stone wool does not burn and does not emit harmful substances.

Mineral wool

Based comparative analysis, we conclude that mineral wool - the best way for insulation using wet facade technology. It is stronger and more reliable. Its vapor permeability allows condensed moisture to evaporate well. Mineral wool conforms to modern fire norms and rules.

The thickness of the insulation depends on several factors:

climatic region. For different areas there are different norms for the thermal conductivity of enclosing structures. The thickness of the insulation layer depends on this.
Wall base material. Brick, concrete, foam block have different thermal conductivity. With the same wall thickness of these materials, a different amount of insulation is needed.

Too much insulation is just as bad as too little. Excessive heat provokes constant ventilation. Condensation forms around open windows, which flows through the insulation. As a result, the wall gets wet and begins to collapse.

Necessary building materials and rules for their calculation

Before the beginning installation work all materials and tools must be prepared. Lack of material will slow down the progress of work, an overabundance will lead to a rise in price.

Basalt mineral wool. After determining the thickness of the layer, it is necessary to calculate the required volume. There are two sizes of plates 1000×600 and 1200×600 mm. First, the area of \u200b\u200bthe walls is calculated and 10% is added (margin for pruning and marriage). Then the area of one sheet of mineral wool is calculated. The total area is divided into a unit. The result is the required number of sheets of insulation.

The area of the walls is calculated without taking into account window and door openings.

guide profile. It is measured in running meters. Its amount is equal to the perimeter of the building plus 10% of the stock. The width of the profile must match the width of the basalt wool sheet. The number of connectors for the profile is calculated from the norm of 4 pcs. for one pull.

Plinth profile

Dowel - nails. These are fasteners for the guide profile. The size depends on the material of the wall. Long - for loose materials (aerated concrete, foam block), short - for solid (brick, concrete). Consumption rate - 1 pc. 30-50 cm profile.
Betonokontakt. Serves to improve the adhesion between the adhesive and the wall. Consumption rate 300-500 ml/m 2 .
Adhesive mixture for stone wool. There are universal compositions for all types of insulation, but it is recommended to select for a specific material. Consumption rate 4-8 kg/m 2 .
Expanding dowels. Additionally fasten mineral wool. Their length depends on the thickness of the insulation. The consumption rate is 5-6 pieces / m 2.
Facade plaster. Layer thickness 4-8 mm. Consumption rate 4-8 kg/m 2 .
facade mesh. There are plastic, metal, fiberglass. Consumption rate 1.1 m.p. per 1 m 2 of surface.

facade mesh

plastic corners for plaster window slopes. Measured in running meters. The total length is equal to the perimeter of the windows plus 10% margin.
Priming. Consumption rate 200-300 g/m 2 .
Decorative plaster or facade paint. It is selected depending on the wishes and preferences of the client. Consumption rates vary greatly. It is best to check with the specific manufacturer.

Do-it-yourself work on the installation of a wet facade

After the completion of the calculations, the preparation of all materials and tools, the main stage begins - the finishing of the facade. It is performed sequentially, adhering to certain rules:

Preparatory work

The facade surface is being audited, problem areas are identified and eliminated:

Preparatory work

old paint. Interferes with adhesion of a wall with front glue. The surface is cleaned with an iron brush or grinder.
Old plaster. Weak areas are beaten off, cracks are expanded and smeared with cement mortar.
Solution splashes. They are beaten off with a hammer, chisel or spatula.
Small irregularities. Closed with facade glue or cement-sand mixture.

Differences in the wall surface of more than 2 cm by 2 m are leveled with a cement-sand mortar.

Foreign elements. Cut off or smeared with cement mortar.

Guide profile installation

This is the foundation on which the insulation for the wet facade will stand. The load is evenly distributed. There are no congested areas.

The first is the horizon. A horizontal line is drawn along the entire perimeter of the facade using a laser level, a level and a rope. Height from the ground 300-400 mm. This will prevent the mineral wool from settling on wet ground.

Then the profile is attached. It is mounted strictly along the broken line using dowel-nails or dowel-screws. The installation step of fasteners is 300-500 mm. The profile is interconnected by special fasteners with a deformation gap of 2-4 mm.

If the profile width is less than 80 mm, then 2 fasteners are enough for one rod. If more than 80 mm, then 4 pcs.

The ends of the corner profiles are cut at 45°. Then they connect. A deformation gap of 2-4 mm is left.

Insulation installation

The glue is mixed. It is better to use plastic containers, such as facade paint buckets. Part of the water is poured into the bucket. Then glue is poured out, and the remaining water is poured out. The solution is mixed with a mixer.

It is better to use a special knife for sawing stone wool sheets. Another tool "breaks" the cut line.

The glue is applied to the mineral plate with a ribbed trowel over the entire area. Then the insulation sheet is pressed against the wall with force. Installation starts from the corner of the bottom row.

The first row of insulation should fit snugly on the guide profile.

Sheets are glued in a checkerboard pattern. Seam-to-seam gluing is strictly prohibited. Minimum size insulation element, which is attached to a corner of 200 mm. All corners are tied up according to the lock rule (similar to the dressing of brickwork).

Insulation installation

Particular attention should be paid to slopes. They are finished with sheets of stone wool less than the thickness.

It is forbidden to match the vertical and horizontal seams of the insulation with the slope lines. A ligation is made between them.

The verticality of the facade plane is checked using a building level 2-2.5 m long.
The adhesive mixture dries for 72 hours. Then the insulation is additionally attached to the wall with plastic dowels. For each sheet you need 5 pcs.
Holes for fasteners are drilled with a puncher and a concrete drill. The depth is set based on the size of the dowel plus 20-100 mm.

The drilling depth depends on the wall material. For foam concrete - 100 mm. For brick - 20 mm.

All gaps between the sheets are sealed with pieces of stone wool cut in the shape of a wedge.

Plaster work

A special plaster composition for facades is used. It is diluted in water and stirred with a mixer.

Plaster work

First, corners and slopes are reinforced. Strips of mortar are applied along them with a notched trowel and plastic corners are attached.

Then the main surface of the facade is plastered. Work is best to start from the corner. The first layer of plaster 2-3 mm is applied. The facade mesh is pressed into it. After 20-30 min. pre-washing is carried out. For this, a plaster grater is used.

The plaster mesh is laid with an overlap of 100 mm.

At the end of the preliminary grouting, a second layer of plaster is applied with a thickness of 2-3 mm. The surface is leveled and rubbed with a grater and trowel.

If you need to plaster your facade decorative plaster, then the second layer can not be applied. It is applied only for painting.

Finishing

The facade is finished with decorative plaster and painted.

A wet facade will protect building structures, retain heat and decorate the appearance of your home.

Remember - the success of do-it-yourself work depends on 30% of the quality of materials and 70% on the right technology.

Finishing and insulating facades is a mandatory process that guarantees a warm and attractive home. For this, they are used different methods, but the most relevant and interesting choice is the one in which a wet facade is created, the installation technology of which will be considered in detail. During its formation, special mortars and heat-insulating materials are used. If you understand well how such a facade is created, then the process is easily done by hand.

What is a wet facade system

The most popular materials used for the construction of various structures are brick, concrete or wall blocks. From them, buildings are obtained that have good strength, but do not have excellent thermal insulation parameters, so insulation is an indispensable process. For this, wet facade technology is an excellent solution.

With the help of the work performed, not only high-quality insulation is provided, but also decoration private houses. All work is carried out exclusively with the use of specialized building solutions. At the end of the process, the walls are plastered, which guarantees their attractive appearance.

A distinctive feature of the design is its multi-layered nature, with each layer performing an important function.

The composition of the wet facade includes the following layers:

Construction layer	The functions it performs
Adhesive	Provides secure fastening of the entire structure
Insulating	Ensures high-quality insulation of the walls of the building
reinforcing	Responsible for the high strength and reliability of the wet facade, and also creates the basis for easy and quick creation of the next layer
Decorative	Acts as a plaster coating that protects heat-insulating materials from external influences and provides beautiful view buildings

When using this technology, the useful area of the premises does not decrease, since all work is carried out outside.

Advantages and disadvantages

The design has positive and negative parameters, which are carefully studied before direct work. The pluses include:

acceptable cost;
a small mass that allows you to create a structure for houses built on light foundations;
the usable area of residential premises is not reduced;
thanks to the creation of a wet facade, the installation technology of which is clear and simple, not only the thermal insulation parameters of the building increase, but also sound insulation improves;
its service life exceeds 35 years;
improving the appearance of buildings;
if necessary, simple repairs can be easily carried out.

However, a wet facade has not only advantages, but also the following disadvantages:

work can only be carried out when optimal conditions are established on the street, since it is almost impossible to achieve the desired result at temperatures below 5 degrees, but the solution to this problem will be the use of suitable thermal equipment;
it is important that all layers dry evenly and gradually, so precipitation or a sharp change in humidity can lead to poor-quality insulation;
so that during the solidification of the structure dirt does not get on it, constant protection from the wind is provided, which entails additional waste of time and effort.

This technology provides the formation of high-quality thermal insulation with minimum investment funds. Photos of the design are presented on the Internet in large numbers, so you can be sure of its attractiveness. All shortcomings are easily eliminated, therefore this option of warming is chosen very often.

Wet insulation options

The choice of insulation for the structure

The main purpose of a wet facade is the insulation of buildings, so much attention is paid to the choice of high-quality insulation. It must meet the following criteria:

small mass;
environmental cleanliness, since the work is carried out for a residential building;
low rate of water absorption;
good resistance to mechanical stress;
even with a sharp change in temperature, the material should not change its structure;
installation should be simple, and the cost should be low.

Only some thermal insulation materials meet these requirements. These include:

polystyrene foam - has a specific structure, which contains a huge number of closed air bubbles. It is low cost and easy to install. It has a small mass, therefore it does not affect the foundation and other parts of the structure. Resistant to mold or mildew. Its disadvantages include poor breathability. Also, it is not durable, so even slight mechanical impacts easily lead to its destruction. It is not advisable to use it for wooden buildings;
expanded polystyrene - is a modern kind of polystyrene. In the process of creating a wet facade, preference is often given to expanded polystyrene. Its structure also contains numerous closed air bubbles, so it has good thermal insulation parameters and does not let moisture through. It is resistant to fire and has a small mass. The material is considered unsuitable for wooden houses, as it impairs their breathability;
mineral wool - created using special fibers obtained by melting all kinds of rocks. The material is popular because it contains only natural and environmentally friendly components. Cotton wool is lightweight and affordable. The disadvantages include the lack of resistance to moisture, due to which mineral wool loses its thermal insulation parameters.

Most often, mineral wool is chosen for a wet facade. It is available in slabs that are easy to mount. To insulate a building with this material, you do not need to spend a lot Money.

Styrofoam

Mineral wool

Wet facade installation technology

Making the design is quite simple if you carefully understand the technology of work. The wet façade is formed in several large steps.

Tools and materials for work

Initially, materials and tools used in the process of work are purchased. All of them must be of high quality and reasonable price. These include:

basement profile - it should be equal in width to the thickness of the selected insulation board. Its amount is calculated depending on the size of the building itself. For connection individual elements profile, the appropriate connecting elements are used. Its fixation is carried out with different dowel nails, the length of which depends on what material the walls of the building are made of;
primer - necessary for proper preparation building walls before creating a wet facade. A primer is also purchased, which is applied to a layer of plaster, which ensures its preparation before subsequent decoration;
dowels in the shape of a mushroom - used for reliable and final fastening of insulation;
glue - used in the process of creating a heat-insulating layer, and it must be specially designed for the selected insulation;
insulation boards - their required thickness is calculated in advance, since the effectiveness of thermal insulation depends on it. Most often, mineral wool is chosen for a wet facade;
plaster composition - it provides a protective and reinforced outer layer applied to the thermal insulation;
reinforcing mesh - the most commonly chosen construction is fiberglass, which is sold in rolls. It is easy to use, and also provides a durable and resistant to various effects of the plaster layer;
decorative plaster - it guarantees a beautiful and bright appearance building facade;
facade paint - with its help, the walls of the building are painted in any chosen color.

There are special complex systems on the market, which include all necessary materials and tools used in the process of creating a wet facade. The purchase of such a kit is considered beneficial, but quite often some components are unsuitable for home owners.

Wet facade tools

Preparation of the facade before work

It will be possible to achieve a high result of work only if there is a minimum distance between the wall and the heat-insulating layer. Therefore, attention is paid to the quality preparation of the facade.

Initially, the surfaces are checked for any irregularities and other shortcomings, which will certainly be eliminated with suitable mortars. Since glue is used in the process, it is important to clean the walls from dirt or dust.

Façade wall surface cleaning

Old coatings will certainly be removed, and for this mechanical or thermal methods can be used, which involve heating the base with a building hair dryer or other equipment. The presence of moss or mold on the walls is not allowed, so if they are found, they will certainly be cleaned off, after which the base is treated with an antiseptic. The areas near each window of the building are especially checked, since it is there that the main flaws of the walls can be found. Also, all elements are removed from the base. drainage system or other items that will interfere with the work process. Next, a primer is applied to the base, for which a roller and brushes are used. It is important to prevent gaps, as this will negatively affect the fastening of the insulation.

Wall primer

Base profile device

For its fastening, a zero line is initially applied to the walls, which is beaten off exclusively with a laser. It is important that it be perfectly even, since it depends on how high-quality, even and reliable the wet facade will be. The line that you will have to focus on when creating a heat-insulating layer should be 30 cm lower than the floor level in the building. This will ensure that there are no cold bridges in the structure.

Plinth profile

The plinth profile is required to perform the following functions:

straight fit guaranteed thermal insulation material;
protection of mineral wool from below from moisture and dirt is provided.

If there are small irregularities on the surfaces, then in the process of fixing the profile, special plastic linings are used to compensate for the curvature of the base, and also to allow the structure to be pressed tightly. Fastening is carried out end-to-end, and a small gap is left between the individual segments, not exceeding 3 mm. In the corners, special connecting elements are used.

Stages of installation of the plinth profile

Installation of a heat-insulating layer

for wet facade excellent choice considered as a mineral wool. It is available in the form of plates, which are easy to fix. The whole process is divided into stages:

for fixing the insulation, glue is used, which is diluted with the right amount water according to the manufacturer's instructions. The solution is stirred with a construction mixer to obtain a homogeneous mixture of optimal consistency;
the composition is applied to the insulation boards in two approaches, since initially a small amount of it is rubbed into the elements, and after that an even and fairly thick layer is already created;
a plate smeared with glue is applied to the desired section of the wall, after which it is pressed quite strongly and tightly. It is recommended to move it a little to evenly distribute the glue. When working near the window where the slope is located, it is important to monitor the thoroughness of the fixation. If excesses appear, they are immediately removed with a spatula;
when using the next element, it is important to ensure that all the plates are pressed against each other very tightly. Significant gaps are not allowed;
the material is fastened in successive rows, and work begins from a pre-selected angle. At the same time, the seams are certainly displaced to prevent the occurrence of cold bridges.

The first row is laid in strict accordance with the pre-fixed starting profile. Mineral wool is cut with a special knife, and during operation it is important to constantly use measuring equipment in order to prevent possible deviations and distortions.

The prepared adhesive solution is applied to the insulation boards

The first row of insulation is carefully attached with glue to the basement profile.

Additional fastening of insulation with dowels

Application of a plaster layer with reinforcement

A wet facade is created without fail with the formation of a special reinforced layer of plaster. The mixture is usually sold in dry form, so it must be diluted with water before use.

Work begins with each window in the building, since these areas are considered the most difficult. As a rule, special corners for slopes are used here. After the formation of the optimal thickness of the plaster layer, a reinforcing mesh is used, which is embedded in the solution. It should not touch the mineral wool, but should be in the plaster mixture. In the corners, a special corner is used, equipped with mesh strips.

Reinforcing mesh

The mesh is overlapped to obtain a strong reinforcing layer. Trim excess material if necessary.

After the mortar has set, another layer of plaster is applied. The second layer is overwritten, after which you can cover it with a primer, and then paint the resulting structure with high-quality facade plaster or paint.

Reinforcing mesh is attached with an overlap

The mesh is pressed into the layer of plaster

Common mistakes when creating a wet facade

It is not difficult to do the job, but often the quality of the result is low. This is due to the following errors:

the base was not prepared or a poor-quality primer was used;
the reinforcing mesh was laid end-to-end, and not overlapped;
the heat-insulating layer does not adhere tightly to the walls of the house;
plaster was used, which has a high rate of vapor permeability;
drains installed incorrectly.

What threatens the incorrect installation of a wet facade

To avoid these errors, it is important to use quality materials and strictly follow the instructions. Thus, wet facades, the installation technology of which is described above, are considered an excellent solution for any building. The design has many advantages, does not require a large investment of money and is easily created by hand. High-quality warming of the house is provided, and also its appearance improves.

Video

We suggest watching a video that will help you understand how to properly make such a facade.

Frame house. But for outdoor work, in addition to the traditional design with a crate and a ventilated gap, only one technology is used. We are talking about a “wet” facade. It got its name because of the technological features of the installation.

Wet facade features

A fine finish on a wet façade is a “pie” of several materials laid in succession on wall cladding or DSP. V general view it looks like this:

adhesive layer on the base;
thermal insulation material;
glue;
reinforcing mesh;
glue;
facade plaster;
paint (if necessary).

All these building materials are easy to use, so you can handle the installation of the facade on your own.

But is this option worth it? exterior finish for frame house? An assessment of the advantages and disadvantages will help answer this question.

Advantages and disadvantages of technology

A wet facade is fundamentally different from a ventilated one. This applies not only to the structure of the wall “pie”, but also to its operational properties.

To the advantages of technology can be attributed:

Efficient heat saving by minimizing the number of “cold bridges”. In a ventilated structure, they are formed by a large number of fasteners of the crate.
Saving money and time.
Aesthetic appearance of the house.
Additional insulation, high-quality sound and vapor barrier of walls.
Reducing the load on the foundation.

There are also disadvantages to warming the facade of the facade with a wet method. They are associated with the conditions of laying materials, applying adhesive compositions. So, permissible air temperature during operation should not be lower than +5 °C, and the humidity should not exceed 40%.

If these conditions are not met, it is likely that the glue and plaster will dry out unevenly. This will negatively affect the quality of the finish coating, its service life.

Wet facade materials

A competent device of a wet facade for insulation, the technology of which is quite simple, is largely based on right choice materials.

Styrofoam or mineral wool in the form of rigid plates is used as a heater. They prevent the formation of condensate, retain heat well.

Wherein polystyrene loses to mineral wool in terms of environmental friendliness and flammability, but surpasses it in terms of ease of use, price, and strength. It is also not subject to shrinkage during the operation of the house.

Please note: when choosing a slab insulation, its thickness is important. It is calculated based on climatic conditions, insulating characteristics of frame walls.

Alkali-resistant fiberglass mesh is used to reinforce the wet facade.

The best option for fixing the foam is glue-foam in cylinders. It is also called liquid foam. It sets quickly, does not let heat through, and is resistant to moisture. The only downside is the high price.

An alternative may be a universal facade adhesive in dry form. For better adhesion, it is closed with a primer of the same brand. But mineral wool is better to fix on a special reinforcing glue.

Wet facade device on a frame house

Installation of a wet facade of a frame house implies the consistent execution of a number of works, taking into account the characteristics of the materials used. If you do not want to invite third-party masters, make sure that you have several reliable assistants.

Stage of preparatory work

Wet facade - good decision for a frame house built from scratch. Wall cladding, which is the basis for laying insulation, has a flat and clean surface. It doesn't even have to be primed. However, some preparatory work are still needed.

To stick a layer of insulation, clearly delineate the surfaces of the basement and walls. This is done using a special L-shaped profile. With the short side (perforated), it is fastened with dowels to the wall, maintaining a step of 300 mm. The long side serves as a support and limiter for heat-insulating boards, therefore it should not be less than their thickness.

Please note: during installation profile is aligned horizontally using the building level.

Instructions for laying insulation

With the exception of a few points, the technology for installing a wet facade on foam plastic and mineral wool is the same.

The fundamental difference lies in the application of the adhesive composition. Glue-foam is applied to the foam plastic along the perimeter of the plates, stepping back from the edges of 20-30 mm, and in the middle - pointwise. Reinforcing adhesive is applied to mineral wool slabs in a continuous layer using a notched trowel. The point distribution of the composition is unacceptable due to the large weight of the insulation.

After applying the glue, the insulation plate is pressed against the wall and tapped. First row laid close to the starting. Each subsequent one is fastened so that the joints between the plates are “out of order”, by analogy with brickwork. In this case, the evenness of the rows is checked using the building level.

The foam sheets are joined quite tightly, but if gaps form somewhere, they can be covered with adhesive or filled with mounting foam.

After the glue has completely dried, additional fixation of the insulation is performed using plastic dish-shaped dowels. Their length is equal to the thickness of the insulating material plus 55-60 mm.

Laying the reinforcing layer

Before installing the reinforcing mesh, the dowel heads are covered with an adhesive solution and the evenness of the heat-insulating layer is checked with a building level. After that, proceed to strengthen the corners.

Their surface is covered with a layer of glue, in which a fiberglass mesh and a metal corner profile are embedded on top of it. Then the glue is evenly distributed over the surface of the insulation. The optimal layer thickness is 3 mm. Both a construction grater and a wide spatula are suitable for work.

A reinforcing mesh is laid on the adhesive layer in the upward direction. At the junction of the canvases, an overlap of 100-120 mm is made. All cells must be completely recessed into the glue, and the irregularities must be eliminated.

For a fine finish on the exterior walls, another layer of adhesive is applied over the fiberglass mesh. Its thickness should be 2-3 mm.

Facade finishing

Finishing the wet facade with plaster can also be done by hand. To do this, the base layer of the adhesive layer is allowed to dry completely. Then a layer of primer is applied to it, which improves adhesion between the finish and base coat.

After priming the wall also must dry. Depending on the solution used, this may take 5-8 hours.

Facade plaster can be purchased both in the form of a ready-made solution, and in the form of a dry mixture, which must be mixed with water. Apply it in a layer, the thickness of which is about 5 mm. The manufacturer reflects the nuances of working with a particular material in the instructions for use.

Making wall openings is one of the most difficult stages of work. And here it is important to pay attention to the following:

In order to fire safety along the perimeter of the openings, cuts are made of non-combustible mineral wool. They must have a width of at least 200 mm, and a thickness equal to the thickness of the main insulation.
In the slabs of heat-insulating material, holes are cut out equal to the perimeter of the openings along the slopes.
It is better not to glue the insulation along the window and door openings, but to blow out the cracks formed with mounting foam.
The joints of the insulating material must be at a distance of at least 150 mm from the slope.

Taking into account these nuances is the key to the fire safety of your home and efficient water disposal from its outer walls.

Thus, the wet facade technology is a good solution for those who want to economically insulate the exterior walls of the house without losing their aesthetics.

Video: technology and subtleties of installation

The wet method has gained popularity due to the minimum number of cold bridges that can be found in other finishing methods. But this factor is not considered the main advantage of the method. By giving preference to a wet facade, you can forget that condensate, due to temperature fluctuations, will accumulate on the walls in the room. To understand how to make a wet facade with your own hands, you should read phased technology installation.

Preparatory work

First of all, it is very important to give a correct assessment of the base on which the technological layers will be applied.

The walls are cleaned of contaminants and tested for adhesive as well as load-bearing properties and characteristics.
If there are damaged areas on the surface of the old finish, they are replaced. Uneven areas are leveled with a plaster composition.
The facade, the finishing material of which is an absorbent material, must be carefully primed.
Remove old plaster from doors and slopes.

The next stage includes the installation and installation of the profile strip. As a result of the installation of this design, there will be a uniform distribution of the load from the thermal insulation plates installed next.

Another design function is considered to be moisture protection of the lower row of thermal insulation boards.

To perform profile fastenings, you must adhere to the following nuances.

The installation of the profile is carried out at a height of 0.4 m from the ground level. It is important to leave a small gap between the strips of 3 mm, located horizontally. This is necessary in case of thermal expansion.
Dowels and self-tapping screws carry out the fastening of the profile. Their number is affected by the mass of the heat-insulating material used. Often, one step accounts for no more than 20 cm. To install the profile at the junctions of corners, you can use the corner profile.

Insulation for a wet facade is mineral wool or expanded polystyrene boards. Fixation of the material is carried out with a special adhesive composition. From the edge of the insulation (plate) you need to step back about 3 cm and apply the adhesive around the perimeter with a wide strip. The space in the middle of the plate is filled with glue pointwise. An exception is lamella mats, the surface of which is completely covered with an adhesive solution.

During the installation of a wet facade, builders use the run-up method of laying slabs. Plates must be pressed not only to the surface of the wall, but also to neighboring tiles. Glue protruding outward is important to remove quickly. The insulation is arranged in rows, starting from the basement profile, moving up from the bottom row.

A few days later, after the adhesive has dried, the thermal insulation needs additional reinforcement with expansion dowels. This takes into account the length of the dowels, which depends on the thickness of the insulation, the adhesive solution and the coating that was previously on the facade.

Also, do not forget about deepening the dowels into the wall.

Basically, for solid walls, the depth can vary between 5–6 cm. Porous walls require a depth of 9 cm.
Taking into account the mass of the insulation layer, its thickness, the height of the slabs and the diameter of the insulation, square meter surfaces will need from 5 to 15 pcs. dowels. Before attaching the dowel, a hole is drilled under it. Clamping sleeves must be flush with the insulation layer.

How to make a reinforcing layer

Having completed the fastening of the thermal insulation, you can proceed with the installation of the reinforcing layer only after a few days.

First of all, they pay attention to the corner bevels of windows and doors, as well as the joints of vertical bevels, taking into account the lintels. They also process the outer corners of the structure, after which they begin to process the even surface of the walls.

To understand how to make a reinforcing layer on your own, you can read the recommendations of specialists.

An adhesive composition is applied to the heat-insulating layer, into which a special reinforcing fiberglass mesh is embedded.
A covering layer of identical quality and composition is applied to the surface of the reinforcing mesh.
The result should be a layer whose thickness does not exceed 6 mm. And the mesh of the layer should be at least 3 mm from the surface.

Doing plastering at home

You need to wait until the reinforcing layer dries well. Drying time depends on the time of year and temperature. It should be noted that facade plaster has moisture resistance, vapor permeability, as well as high resistance to atmospheric changes and climatic conditions. But the quality of work is affected by the conditions in which the work was performed. It is best to install a wet facade at a temperature that ranges from +6ºC to +32ºC. Shade is also important. If the work is done on the sunny side, you can create it artificially.

You should not proceed with the installation and with strong winds, and with precipitation.

The nuances of arranging the basement

Regarding the basement floor, some features of the installation should be noted:

Before starting work, it is necessary to carry out waterproofing basement area walls, as well as the territory of the site that is adjacent to it.
When choosing a heater, it is important to give preference to a material that has a reduced percentage of moisture permeability.
Dowels strengthen the thermal insulation plates only at a certain height, which is equal to 0.3 m from the surface of the earth.
For basement walls, reinforcement is important in two layers.
To clad the area around the walls and the basement itself should be ceramic or special facade slabs, which are based on a natural stone. Mosaic plaster can be an alternative, or the facade can simply be painted.
Finishing is carried out after the work on the insulation of the facade has been completed, the roof, windows and doors have been installed, the wiring of the electrical cable has been completed, and the house has passed the stage of complete shrinkage.

Video

Read the installation instructions for the plaster (wet) facade:

This video shows how corner reinforcement is done. decorative elements wet facade:

Photo

The modern construction industry successfully uses new technological developments and building materials. Buildings that were built not so long ago look elegant, beautiful and neat.

In addition to aesthetic parameters, it is worth noting the quality indicators. Houses can last a very long time and perfectly resist the negative effects of the environment.

Especially beautiful decoration obtained when used for facade decoration.

It makes the structure attractive, insulates it and protects it from wind, moisture, mechanical stress. Let us consider this issue in more detail, we will study which ones are suitable for finishing and how to organize work on applying plaster to the walls.

Wet plaster got its name not because of the strange appearance, but taking into account the fact that in order to perform necessary work special Decoration Materials. The compositions for creating such a design contain a large amount of water.

This technology came to Russia from countries Western Europe, in the early 70s and gradually gained popularity among the population. Consider what advantages and disadvantages experts note in such compositions.

As advantages, the following points can be distinguished:

plastering can be done with your own hands, since this work does not require special skills and special skills;
the facade can be painted in any color at the request of the contractor;
financial costs for the purchase of the composition and additional materials insignificant;
this technology can be used for finishing a building of any level of complexity;
plaster can withstand any load, including the placement of stands and other signs.

Based on these advantages, you can add the composition to the list of high-quality and practical materials, however, do not forget about some of the disadvantages that also occur.

First of all, it is important to remember that plaster can absorb a lot of moisture and therefore needs additional protection from negative effects. external environment. If you neglect this advice, the finished coating may warp and deform. The most correct action in this situation will be the organization of waterproofing.

It should also be remembered that the plaster will be applied to the insulation in the form or, therefore, it must be borne in mind that the thickness of the insulation should be no more than 150 kg per cubic meter otherwise the plaster will crack after drying. Therefore, in order to ensure the safety of the structure and ensure a long service life, finishing materials should be used that will have the necessary technical specifications.

Which is better, dry or wet plaster?

The first and most important difference between the compositions is the finishing procedure. For dry plaster, drywall is the basis, so this method is the least time-consuming and costly.

Wet plaster requires more time to apply the composition and significant physical costs.

Such a finishing method as wet plaster is suitable even for walls suffering from high levels of humidity. The plaster absorbs condensate and takes the dew point outside the house.

Inside the premises remain dry and warm. The microclimate is greatly improved. Dry plaster is more suitable for wall decoration inside the building, since it does not differ in increased technical characteristics and does not tolerate exposure to low temperatures.

Both plasters are used for finishing an already prepared facade, since the thickness of the coating should not exceed 5 mm. In addition, the walls must be covered with special mixtures and plaster. This will ensure the evenness of the surface and maximum adhesion to the putty. both mixtures can be finishing, as it is used for the final finishing of the outer surface of the walls of various structures and buildings.

Material Specifications

The method, called wet plaster, has many advantages, especially from the situation when the walls are very wet and it is not possible to use dry plaster. This material easily absorbs moisture, which provides a dry, warm indoor climate.

The main feature that arises when working with wet plaster is the organization of a multi-layer finish. Each layer has its own thickness. A standard finish layer looks like: a layer of mineral wool, a base layer of plaster, fiberglass and or.

If the contractor wants to provide a higher level of thermal protection, wet plaster can be of different thicknesses, as well as all other layers. If there is also the problem of wet soil near the house, then additional finishing is also required for the basement of the house.

Despite the fact that the application of wet plaster requires a lot of effort and is accompanied by the dilution of dirt, this technique has many positive characteristics:

versatility - suitable for any surface;
differs in affordable cost - you can choose the composition within the approved budget;
ease of use - you can do the work yourself;
strength and solidity - the material is practically not amenable to external influences and with its help you can create a solid coating that is perfect for subsequent finishing;
moisture resistance - the composition protects the walls from the negative effects of moisture.

Each of these qualities makes wet plaster universal and practical material . In addition to these characteristics, it should also be noted such indicators as elasticity and ease of application of the material.

When choosing putty, it is necessary to take into account the type of binder, its cost and manufacturer. It is best to purchase finishes from trusted companies, as this guarantees the high quality of the finished product.

Preparing the wall for painting

Before proceeding with the direct application of the composition to the facade of the building, it is necessary to prepare the walls for these works. In general, the preparatory work is quite simple and can be done even by a beginner.

The following activities will be required:

at the initial stage, it is necessary to assess the condition of the facade, and determine in which places there are irregularities that need to be removed;
after evaluation, it is necessary to clean the walls of existing pollution, from debris, old plaster, if any;
in places that need additional restoration, it is necessary to place a plaster mortar;
if the surface of the wall can easily absorb moisture, then additional finishing should be done in the form of priming. This will prevent the development of mold, fungus;
in the area of doors and slopes, it is necessary to remove the old plaster.

NOTE!

All plates used for facade insulation are fixed with glue. It is very important to make sure that the insulation is securely fastened and can withstand the next stage of finishing.

Important preparatory stage is on the facade. This event is held after three days from the date of installation of thermal insulation. To do this, you must first apply the adhesive composition, and lay a reinforcing mesh on it and cover it with a special layer of plaster. After drying, the walls are ready for finishing with wet plaster.

Mounting the plinth profile

When the surface is prepared for further finishing, a profile strip should be installed, which will protect the walls from moisture absorption in the first row of insulation, and also so that the heat insulator plates lie as evenly as possible.

The fastening of the profile strip is carried out in the basement and for this purpose self-tapping screws and dowels are used. Fasteners are attached in increments of 20 cm. It is important to consider that the height from the ground should be no more than 0.4 meters. The gap between the bars is 3 mm. To provide protection to the corners of the structure, it is recommended to use a special corner profile.

Application technology

All previously applied layers will dry in a week, after which it is required to apply an outer layer of putty. The composition is applied to the prepared reinforcement and for this purpose the finishing mortar used for outdoor work is used. Additionally, a special adhesive composition can be used if it is planned to apply a decorative finish in the future.

After 3-7 days, necessary for the applied layers to dry, you can start applying the leveling layer. There are several subtleties of applying plaster, which can play an important role in the facade decoration. If the facade is exposed to excessive moisture, then it is worth using mineral wool instead of insulation, because it perfectly resists the development of mold and fungus.

Sometimes, wet plaster is applied in a thick layer and is heavy. This is necessary to reduce heat loss. It is the thickness that plays a big role in this case. The first layer of plaster is applied with a thickness of at least 20-30 cm. It is important that the insulation layer must also be thick.

Of course, the mass of the finish in this case is very large, so additional fixing dowels, hooks and a base plate are used.

The protruding reinforcing mesh must be rubbed with a special adhesive composition 5 mm thick. Then the mesh should be applied again and the last layer of 20-30 mm should be applied.

Finishing must be done in two layers.

If the soil is very wet, then it is necessary to additionally finish the basement of the walls, using a special non-absorbent and moisture-resistant material. Before proceeding with the application of the leveling layer, it is recommended to impregnate the surface of the walls with a primer with antiseptic properties.

Useful video

Do-it-yourself plastering master class:

Conclusion

Wet plaster in recent years has become popular and used for finishing buildings. The facade of the building, decorated in this way, has a beautiful appearance and is particularly durable.

It is important that wet plaster perfectly absorbs moisture and acts as an additional protective agent against the negative effects of the external environment - from rain, moisture, wind. Using such material for decoration, you can extend the life of the building by several years and achieve beautiful effect. Wet plaster keeps very long does not burst and is not deformed.

In contact with