Plaster facade of the Ceresit insulation system: application and technology of the device. Arrangement of an insulation system for facades Ceresit Facade system Ceresit
Ceresit façade insulation technology is a closed system with a thin layer of protective plaster on top of a thermal insulation layer. The insulation is attached to the outside of the building with cement adhesive solutions, then on the surface of the insulation from solutions a thin but durable protective layer, reinforced with fiberglass mesh. and finally, the decorative finishing of the facade is done with thin-layer plasters. You can find out more about the installation stages on the Work Stages page.
Ceresit systems can be used both on large construction sites and in small cottage construction.
The main difference between Ceresit insulation systems is the type of insulation used in their construction: expanded polystyrene or mineral wool.
BY TYPE OF SURFACE INSULATED
BY PARAMETERS
| Application area | All types of buildings up to 75 m high, except buildings with elevated fire safety requirements(hospitals, etc.) | All types of buildings without restrictions |
| Vapor permeability | Low. Not recommended for use in buildings with high humidity interior spaces(swimming pools, etc.) | High. The building “breathes”, condensation is effectively removed |
| Noise insulation | Average | Effective for buildings in areas with high noise levels |
| Fire safety | Resistant to fire protection measures in accordance with STO | |
| Water-repellent (water-repellent) properties | Equally high water-repellent properties (low capillary water absorption, high protection against dampness) are given to Ceresit plaster and paint systems | |
| Weight | Lightweight material that is easy to transport and install From 14 to 17 kg per sq.m. |
Relatively heavy material From 22 to 40 kg per sq.m. |
| Impact resistance | High - from 5 to 20 J | Average - from 3 to 10 J |
| Price | Economical thermal insulation | More expensive thermal insulation due to the cost of insulation |
| The cost of Ceresit materials for both systems is approximately the same | ||
For further details, please contact our external competence centers (ECCs), where they will help you choose the most suitable insulation system for your home, make a detailed calculation, fully equip the system (including insulation and additional materials) and advise a proven and qualified team for its installation.
VWS system
Facade insulation system based on polystyrene foam (foam plastic)
The Ceresit VWS system uses expanded polystyrene boards as insulation. Expanded polystyrene differs from mineral wool board in its more affordable cost and lighter weight (5-7 times lighter).
However, expanded polystyrene is characterized by low vapor permeability and creates great resistance to the penetration of water vapor. This means that the vapor content in the wall of the building will be slightly higher, which will create conditions for its humidification. But since the “dew point” is located in the insulation, condensation will not form in the wall.
If the premises have sufficient ventilation and there is no excess humidity (as, for example, in bathhouses and swimming pools), then no problem arises. At the same time, vapor permeability finishing materials does not play a significant role - finishing of facades insulated with polystyrene foam can be done with both mineral and polymer materials.
ADVANTAGES
1. Does not lose its thermal insulation properties when exposed to moisture
2. Does not contain substances harmful to health
3. Very light and has good strength characteristics(Tensile strength is about 80 kPa, compressive strength is about 130 kPa. The stress at 10% compression of polystyrene foam is about 80 kPa)
4. More technologically advanced due to strength characteristics
FLAWS
1. Low coefficient of vapor permeability
2. Low sound insulation properties
3. Not resistant to most organic solvents
TO components of this system
WM system
Mineral wool façade insulation system
The Ceresit WM system uses mineral wool boards as insulation. Mineral wool board has two main advantages over expanded polystyrene: non-flammability and high vapor permeability.
In construction, water has always been enemy number one, contributing to both the destruction of structures and the deterioration of their thermal insulation. Excess moisture must be removed from the building, since dryness means warmth and strength.
Minslab has little resistance to water vapor. They easily penetrate the building envelope, and condensation is effectively removed, so the building “breathes.” At the same time, finishing materials must also have high vapor permeability. Therefore, when insulating a façade with a mineral slab, finishing can only be done with mineral plasters or polymer plasters with high vapor permeability.
You can get a detailed description of the stages of installation of facade insulation systems by downloading the “Installation Instructions” or in the “Installation” section.
4. Resistant to most chemicals
5. Good sound insulation properties due to the fibrous structure mineral wool
6. Suitable for any wall base
FLAWS
1. Heavy material
2. Relatively high cost
Components of this system
The Ceresit system for insulating building facades is based on the use wet technology thermal insulation. The components of the structure include glue, decorative plaster, paint, insulation, etc. Any Ceresit product complies with the ISO 9001:2000 standard.
Main advantages
Ceresit brand insulation materials work most effectively when combined. The system developers took into account the characteristics various materials and made them as compatible as possible. The resulting solution was tested several times, after which it was released onto the market.
The result is that the consumer receives a system, each element of which is precisely verified and tested. The creators of the unique thermal protection did not forget about decorativeness: wide choose finishing materials allows you to insulate any building. Even historical buildings can be not only thermally insulated, but literally restored! After completion of the work, the structure looks like new.
The technology for insulating facades with the Ceresit system is a closed system with a layer of protective plaster on top of thermal insulation. The insulation is attached to the outside of the building with cement glue, and a thin protective layer reinforced with fiberglass mesh is created on its surface. Decorative finishing facade consists of thin plastering.
In this facade insulation system, two types of insulation are used - mineral wool (Ceresit WM) or expanded polystyrene (Ceresit VWS).
Installation with mineral wool
Mineral wool is attractive because it allows steam to pass through well - after all, moisture accumulates and destroys the building, so it must come out in the form of steam. The use of this material allows the facade to “breathe” and not collapse longer. At the same time, polymer or mineral plaster with good vapor permeability should support the functions of mineral wool. The decorative layer for the Ceresit WM system is not allowed in the form of acrylic materials.
Mineral wool slabs are glued with Ceresit CT-190 solution, and the mixture is applied so that the surface with glue is at least 40% of the slab area. After the glue has dried, the slabs are secured mechanically with dowels.
After fastening, Ceresit ST-190 solution is applied to the mineral wool slabs in a 3 mm layer with a special trowel. A reinforcing fiberglass mesh is embedded into this layer of the mixture, on top of which another 2 mm layer of the mixture is applied. After which the surface is leveled so that the mesh is not noticeable. The dried, treated wall is puttied with Ceresit ST-16 primer, and after drying it is plastered with a decorative mortar.
Installation with expanded polystyrene
Installation of the Ceresit VWS system on polystyrene foam, which has low vapor permeability, is desirable for buildings with good ventilation, which will eliminate excessive moisture. It is clear that such a system is not indicated for baths or swimming pools. The finishing of facades on polystyrene foam can be made of any materials.
The Ceresit polystyrene foam insulation system for facades consists of two bases: wall installation and base installation. So in the case of a wall, the first layer is applied with glue, onto which expanded polystyrene boards are attached. Then a mineral wool groove is applied, and all layers are reinforced with dowels.
After the glue has completely dried, a base layer of plaster is applied on top of the insulation, onto which a reinforcing fiberglass mesh is stretched. Finally, the wall is primed and plastered with a decorative compound.
In the case of a plinth, apply to the wall waterproofing layer, onto which extruded polystyrene foam is glued. Next, the base is sheathed with any materials desired. In general, the decorative plaster of the Ceresit system can be mineral, silicone, acrylic, etc. in composition.
Step-by-step instruction
The Ceresit system is not complicated. However, its installation must strictly comply established rules manufacturer. Let's consider the stages of work.
Comprehensive base preparation
Insulation begins with an inspection of the facade itself, roofing structure and base. The walls and basement area are checked for various damages, and any existing irregularities are eliminated.
Experts also study the general condition of the roof and cladding, including waterproofing coatings and the finishing façade layer. After the inspection, the nature and volume of contamination on the enclosing structures is determined. Any problems found must be corrected.
Installation of tile heat insulator
Installation of slabs begins from the corner of the structure. The first horizontal layer is placed on profile element perforated type. The height of the belt around the perimeter is 25 cm, thickness is 4-8 cm. Products made of polystyrene foam are glued with Ceresit CT-85.
The slabs are installed three days after the building is prepared. Dowels equipped with cartridges and washers are used as fastening. Holes for doweling are drilled either with a hammer drill or a drill - the main thing is not to damage the surface of the previously installed slabs.
Waterproofing and reinforcement mesh
First, a waterproofing compound is applied, on top of which a reinforcing mesh is placed. The corners of the slabs are insulated perforated corner made of aluminum. The dimensions of the corners are 25*25*0.5 mm. In addition, it is necessary to strengthen the corners near windows, doors and convex ribs well. The profile is mounted in a fresh layer of composition, after which it is puttied with it.
Further work boils down to applying a reinforcing mesh to the adjacent wall to cover the profile, 10 cm in size. To glue the mesh, use “Ceresit CT-85” or “Ceresit CT-190”.
The thickness of the second waterproofing layer ranges from 1-1.5 mm. If the system assumes underground insulation, then after creating this layer it is necessary to waterproof the areas underground using Ceresit materials of the CR, CP or BT group. As soon as they dry, the soil is backfilled.
Finishing work
The finishing layer, as well as additional fasteners, are applied three days after laying the insulation with waterproofing. First of all, it is necessary to prime the surface to be treated with Ceresit ST-16. After 3-6 hours, the structure is covered with one of the following decorative materials– Ceresit CT-35, CT-64, CT-36, CT-63, CT-137, CT-60.
Preparation of Ceresit CT-35 or CT-36 is carried out by mixing with water in a ratio of 1: 0.2-0.22. The ratio for Ceresit CT-137 is 1:0.17-0.22. The duration of action of Ceresit CT-35 or CT-36 is 1 hour, CT-137 – 1.5 hours.
When insulating with mineral wool, finishing materials must have good vapor permeability. Because of this, the finishing layer can only be made from polymer or mineral plasters. In the system they are represented by silicone compounds.
The Ceresit system for insulating facades provides reliable thermal insulation of the external walls of a building and protects against aggressive influences environment. The advantage of this solution is the lightness of the materials, the small thickness of the insulation, as well as the wide possibilities of decorative finishing.
There are two ways external thermal insulation: Ceresit VWS and Ceresit WM. The main difference lies in the application: it can be sheets of polystyrene foam or mineral wool boards. The versatility of this insulation allows the use of these thermal insulation methods in both private and large-scale construction.
This thermal insulation is closed system and consists of insulation, which is attached to the wall using adhesive mixtures. It is covered with a protective layer on top, including a fiberglass mesh frame. Decorative finishing completes the thermal insulation process.
Ceresite based on polystyrene is used in houses with a height of no more than 75 meters and which do not have increased fire safety requirements. PPS sheet is 5-7 times lighter than mineral wool slabs of similar size and is more affordable.
The PPS insulation method is reliable thermal insulation with the following advantages:
- does not contain hazardous substances;
- saves thermal insulation properties when moisturizing;
- good strength characteristics allow us to recommend it as an easy-to-process building material;
- the lightness of expanded polystyrene is a significant advantage over analogues.
Application of teaching staff causes low vapor permeability, which prevents moisture vapor from entering the outer surface . This will increase the content of moisture vapor on the surface of the wall, but condensation occurs in the polystyrene foam itself due to the localization of the dew point there. As long as proper ventilation and normal moisture content in the air are ensured, there will be no operational difficulties.
Ceresit wm insulation systems based on mineral wool
Ceresit facades mounted from mineral wool slabs have high vapor permeability and are non-flammable. Such properties ensure the removal of condensate from the thermal insulation layer. Mineral wool helps good penetration through the enclosing structure of water vapor, due to which the building “breathes”. Ceresit facade insulation based on mineral wool slabs is an insulation system that has the following advantages:
- naturalness - mineral wool is made from rocks;
- versatility of use - suitable for installation on any type of wall;
- has high sound insulation properties;
- resistant to aggressive substances;
- has high vapor permeability;
- resistant to impact high temperatures– for the cotton wool to begin to melt, it will require exposure to a temperature of more than 10,000C for 120 minutes.
Ceresit for insulating facades, in which mineral wool is used, allows you to achieve excellent thermal insulation and sound insulation, and ensure high fire safety of buildings.
Flaws
Ceresite facade insulation has some disadvantages and limitations in application. So, PPP has the following restrictions:
- susceptible to the action of organic solvents;
- does not protect premises from extraneous sounds;
- has a low coefficient of vapor permeability;
- has limitations in use: applicable only for walls made of monolithic reinforced concrete and three-layer panels;
- It is unacceptable to use in buildings with increased requirements for fire safety, for example, in hospitals.
Mineral wool slabs have fewer disadvantages:
- the material is heavy (22-40 kg/m2);
- high cost of material;
- low impact resistance.
This method of thermal insulation has universal application and is suitable for all types of walls.
Ceresit building thermal insulation technology has shown good performance and thermal insulation qualities, which allows us to recommend this method. The ability to choose the finish and color to your liking removes restrictions on the personal preferences of the owner of the house or apartment.
IN Lately The Ceresit insulation system, which is installed using the “wet” method, is becoming increasingly popular. The manufacturing company has made a significant contribution to this area.
Each of the components of the system, including glue, insulation, primer, plaster, as well as other components, can effectively interact in one ensemble.
Moreover, each component complements the others. It is recommended to use components produced by one manufacturer for the installation of a façade system.
Otherwise, a mismatch between the components may occur, and the final assigned tasks will not be completed.
The Ceresit plaster facade has undergone many tests in the harsh Russian climate.
This insulation system not only protects the building from the cold, but also gives its façade great view and aesthetic appeal.
The installation of the Ceresit façade system involves several stages.
At the initial stage it is necessary to make preparatory work the base of the walls, this involves analyzing the condition of the facade and basement of the building. This will allow you to determine if there is damage or unevenness on the walls.
During the work, it is necessary to strengthen the thermal insulation boards, where Ceresit CT85 brand adhesive should be used.
The facade insulation system in this case requires complete drying of the adhesive, which will take 3 days, only after which you can begin to additionally fix the facade slabs. Dowels and washers should be used at this stage.
Arrangement of facades when attaching insulation requires the formation of holes intended for dowels; this should be done extremely carefully, which will prevent damage to the surface of the heat insulator.
The next layer will be a reinforcing mesh on which the waterproofing is laid. In order to provide additional strength to the system, fiberglass mesh should be laid on top.
After 3 days, you can start carrying out finishing works, which involves covering the surface with plaster. It is preferable to equip a wet facade using mineral, silicone or polymer plasters of the Ceresit brand; this will be the optimal solution.
Tools and materials
- plastic grater;
- steel grater;
- grater;
- glue;
- insulation;
- dowels with washers;
- reinforcing mesh;
- waterproofing;
- putty;
- primer;
- base profile;
- mineral wool slabs;
- facade paint;
- brush.
Preparatory work before starting the installation of the system and strengthening the insulation
The installation of Ceresit facades involves the removal of the previous cladding if its stability is questionable and it has poor adhesion to the walls.
The wet facade system may require leveling before further work, during which you can use façade putty brand Ceresit ST 29.
This composition must be applied to surfaces that are pre-treated; for this, a façade primer of the Ceresit ST 17 brand must be used.
Then, in the area of the border that connects the base and the facade, along the entire perimeter of the building, it is necessary to strengthen the base profile, which will determine the starting point for installing the insulation slabs.
Afterwards, a heat insulator must be strengthened onto the surface of the facades; they can be slabs of expanded polystyrene or mineral wool.
They are perfectly fixed on the walls with adhesive mixtures of the ST 85 or ST 190 brands, produced by the manufacturer Ceresit. You can also use ST 84 polyurethane glue, which is sold in cylinders.
The peculiarity of the technology at this stage is that polystyrene foam insulation should be applied to the surface of the slab glue mixture, in this case it is necessary to form a strip, the width of which should be 6 cm, while its height should be 2 cm.
The composition should be applied along the perimeter of the base, 2 cm away from the edges. The mixture should be applied in the central part of the slab like beacons, the diameter of each of which should be 10 cm and the height 2 cm.
The maximum number of such beacons should be 8 pieces.
If the insulation process is to be carried out using mineral wool slabs, then the adhesive mixture should be applied in a continuous layer.
Once the glue has been applied and distributed, the slab can be applied to the wall and pressed. At the stage of strengthening the insulation, the Ceresit system should be built from the base profile; the material should be laid in order, moving upward.
Do not forget that during the installation of insulation, its position should be controlled using a level. Now you should wait until the glue hardens, only after, in order not to change the position of the plates occupied by them during the fastening process, you can grind the base using a polisher equipped with coarse sandpaper.
Then the insulation can be further strengthened, as described above.
Installation of the reinforcing layer
At the next stage of arranging Ceresit facades, a waterproofing mixture should be applied to the surface of the insulation; when using polystyrene foam heat insulator, the ST 85 mixture from Ceresit is used; when using mineral wool, the waterproofing mixture ST 190 is suitable. The mixture solution should be applied to the base in a layer of 3 mm.
The reinforcing mesh should be laid on the freshly applied mortar and recessed into it with a trowel. Arranging a wet facade requires laying a mesh with an overlap, which can vary from 5 to 10 cm.
During this process, the mesh does not need to be stretched too much and deepened all the way to the heat insulator. Then the façade system must be equipped with a layer of mortar, the thickness of which must be 2 mm.
The mixture should be applied so that the mesh is hidden underneath. And then the surface should be leveled using a metal grater.
Arrangement of the decorative layer
The process of insulating facades using the Ceresit system involves applying a finishing decorative layer at the last stage.
To ensure better adhesion of the reinforcing and decorative layers, priming should be done. As a primer solution, you can use façade paint ST 16, the color of which is close to the color facade plaster. It should be applied as evenly as possible, using a brush; one layer will be enough.
When constructing a plaster facade using a silicone or silicate mixture, you should use a primer of the ST 15 silicon or ST 15 brand in tandem.
The thin-layer plaster mixture should be applied to the surface as evenly as possible, the thickness of the layer should be equal to the thickness of the grain, while using a polisher, the tool should be held at a slight angle, after which the surface will have to be further smoothed.
After the facade plaster stops sticking to the tool, it can be given the desired texture using a plastic trowel, which must be held in a horizontal position.
Creation of plaster facades with different textures
In order to obtain a layer based on plaster that will have a “bark beetle” texture, mixtures of grade ST 35 and ST 75 should be used, the grain diameter should be equal to 3.5 mm.
The composition of the ST 73 brand is also suitable; its grain should be equal to 2 mm in diameter. You can get the desired texture by rubbing the surface with a plastic polisher, which should be moved in one direction, as a rule, it is horizontal or vertical, less often circular.
To obtain “pebble” textures, you can purchase facade plaster of the ST 73, ST 75 or ST 137 brands, the grain diameter of which should be 1.5 mm.
A mixture of grade ST 137, the grain size of which is 2.5 mm, can also achieve a pebble effect. Grouting should be done using the same tool.
In addition to those described, you can create a mosaic-type texture; the ST 77 mixture, which has different diameter grains Silicate, acrylic or silicone paint from Ceresit will allow you to obtain a certain shade of the surface.
Features of Ceresit facade plasters
Plasters produced by the manufacturer Ceresit can have different designs: acrylic, silicone, silicate, mineral and all kinds of combinations thereof.
Each of them is characterized by its own protective properties. Taking into account certain coating requirements, it is possible to select suitable option. So, if you want to avoid replacing the coating for a long time, you should choose silicone or mineral mixtures.
They are also characteristic good vapor permeability. If you primarily want to solve the issues of rot resistance and sun rays, you should choose acrylic mixtures.
When choosing one or another mixture, you should take into account that facade plaster can give the facade the desired appearance. This can be achieved by painting the surface or by using a certain structure of the mixture, which is determined by the grain size.
The standard range of colors is limited to 163 shades. However, each client can make individual order, then the choice expands to 2,000. The manufacturer achieves this by mixing dyes and using different tints.
Insulation of facades with plaster from the manufacturer Ceresit guarantees mechanical strength coverings. For comparison, if panels made of plastic are not able to withstand strong mechanical stress and require additional protection in the form of a fence, the described plaster will not be damaged.
You can be sure of its environmental friendliness and fire safety. These characteristics can make plaster stand out among materials such as plastic or wood. This allows the plaster to act as additional protection for the entire house.
If you want to know what the consumption of facade plaster is, it will depend on some factors, among them: the type of surface to be finished (complexity architectural solution and material), type of applied composition and grain size.
In the instructions for use, this indicator is indicated by different values and is recommended. For a mixture whose grain is 1.5 mm, the consumption of the plaster composition can vary from 2 to 2.5 kg/m2; for a composition with grain with a diameter of 2.5 mm, the flow rate can be increased to 4-4.5 kg/m2.
If you decide to use a structural mixture, the consumption can reach 5 kg/m2, however, the material consumption in this case will depend on the formation of the texture. If the composition has marble chips, the consumption will increase and be equal to 5.2 kg/m 2.
And if you want to ensure a more rational consumption of the mixture, you should prefer silicone compounds.
Buyers choose these compounds due to the fact that such insulation arrangement is considered budget option home decoration.
However, special attention will have to be paid to the preparation of the walls and this will be the main difficulty of the work; old coatings that do not hold up well will have to be gotten rid of.
But there is an opportunity to save time and labor costs by not having to build a supporting frame. It is preferable to start work from the back of the building, which will allow you to gain skills without spoiling the visible part of the facade.
Many people also appreciate the fact that no construction garbage, the removal of which also involves certain costs.
There is no need to prepare the material before starting insulation; you can deliver it yourself, without involving professional automotive equipment.
The cost of plaster will depend on the type chosen, on average 1 m2 will cost 50 rubles, and total cost surface preparation work taking into account additional materials will start from 250 rubles/m2.
Installation technology “wet” facade is becoming more and more popular, because there are still a small number of cold bridges.
But this is far from the last factor in the chosen technology. Thanks to this technology, you literally move dew points outside your living space. As a result, the internal parts of the walls will not suffer from condensation. In our article we will consider step by step instructions this finish.
What is the “wet” façade system?
The use of this technology is associated with the creation of a reinforced cake from several layers on the outer part façade walls. In the process of work, special plaster mixtures, mastics and adhesive compositions. The technology consists in observing the following order of applying certain layers. The result is one system, which has many advantages.
Composition and structure
The wet façade is new technology, providing high level heat preservation.
The design of such a facade consists of creating three functional layers
- Reinforced layer. It is also called basic. It is represented by a layer reinforced mesh with glue, which is designed to level the surface load-bearing wall. The thermal insulation material adheres well to it.
- Thermal insulation layer. It is represented by insulation boards with a minimum thermal conductivity coefficient. Among such materials are polystyrene foam and mineral wool.
- Layer exterior finishing . It is used for surface protection and finishing. It is made from plaster, after which a special coloring composition can be applied after drying.
Physico-chemical characteristics of insulation for a “wet” facade
- Expanded polystyrene,
- Mineral wool.
Expanded polystyrene boards are distinguished by increased heat-protective properties. This material has a relatively low cost. It is lightweight, making it easy to install.
Mineral wool slabs cost a little more. But they are more reliable in operation. This non-flammable material, which stops the spread of fire. In addition, it has higher heat-protective characteristics and is not exposed to aggressive environments.
Give preference to mineral wool made on the basis of diabase or basalt. It should not react with plaster compositions and should have high tensile strength.
Density of mineral wool insulation should be at least 130 - 140 kg/sq. m. One more the most important point is the moisture absorption coefficient. It should be minimal. 
Necessary materials
- Insulation.
- Umbrella dowels at the rate of 5 - 8 pieces per square meter. m of facade.
- Fiberglass mesh.
- Base and corner profiles.
- Primer.
- Glue. Not only the insulation will be attached to it, but also the reinforcing mesh.
- Decorative plaster.
- Paint if necessary.
Installation technology
It is important to follow the installation technology in the exact sequence. The start of work is always preceded by necessary preparation surfaces. It consists of assessing and constructing the base, preparing wooden or metal scaffolding.
Stage of preparation for installation of a “wet” facade
Inspect the base. It needs to be freed from dirt. Check the base for load-bearing and adhesive qualities. If the finish is partially damaged, it is removed and entire sections are replaced. If there are irregularities on the façade, the surface is leveled with a plaster compound.
If the facade is finished with a material with a high degree of absorption, it must be carefully primed. Also deleted old plaster, if it is present on the surface of window and door slopes.
Base profile device
Now you need to install the profile strip. Similar design allows you to distribute the load from thermal insulation slabs that are planned to be laid in the future. The profile is also necessary to protect the bottom row of slabs from high humidity.
The profile is fixed taking into account the following rules:
- The profile must be installed 40 cm from the ground surface. Between horizontal slats leave gaps of about 3 mm. It is necessary in case of thermal expansion.
- The profile is secured with dowels and screws, the number of which per 1 sq. m is determined depending on the mass of the insulating boards. Typically the step is from 10 to 20 cm.
- At corner joints At home, a special angular profile is used.
Installation of the thermal insulation layer
To organize a “wet” facade, insulation is traditionally used, represented by slabs of mineral wool or expanded polystyrene.
What do you need for correct installation slabs?
- You need to retreat 3 cm from the edge. Then glue is applied along its entire perimeter in a wide strip.
- The adhesive mixture should be applied pointwise in the middle. As a result, the glue should cover about 40% of the entire surface area.
Note! If you decide to use lamella mats To insulate the facade, their surface must be completely covered with glue. - The slabs are laid staggered, as in the case of brickwork. Plates with insulation are pressed tightly against the wall surface and adjacent slabs. Excess glue is removed immediately during work. The insulation is installed in rows. Start from the bottom of the base profile, gradually moving upward.
- If the walls of your house consist of hard material, the recess should be 5 cm. If the walls are porous, the recess is 9 cm. Keep in mind that per square meter. m there should be 6 - 14 dowels. But exact amount determined by the mass and thickness of the insulating board, its location and the diameter of the fasteners.
- First, nests are made, after which dowels are installed. If top fastening is used, the clamping bushings are placed flush with the surface of the insulating layer.
Installation of the reinforcing layer
You can use its installation three days after installing the thermal insulation layer. First you need to process the corner bevels on doorways and windows, external corners of the house and joints on vertical slopes. And only after this can the smooth sections of the wall be processed.
Reinforcement is carried out according to this scheme:
- The glue is applied directly to the surface of the insulation. A reinforcing mesh consisting of fiberglass is slightly recessed into it.
- A covering layer is applied to it.
The resulting reinforcement thickness should be no more than 6 mm. A mesh is placed at a distance of 2 mm from the surface.
Finishing stage
After a week, the reinforcement layer will dry completely. A layer of plaster is applied on top of it. Use only plaster suitable for exterior use. Plaster composition must have an increased degree of vapor conductivity, resistance to precipitation and mechanical damage.
Quality of the resulting surface plaster is largely determined by the conditions under which it is applied to the surface. Optimal temperature regime is in the range from +5 to +30 degrees. It is important that there is no strong wind or precipitation during this period.
There must be a shadow. If it does not exist, you will have to create it artificially.
Installation of a “wet” façade in the basement of the building
This technology has its own characteristics associated with the basement part of the building:
- Before you start working, carry out thorough waterproofing on the basement part of the wall. Waterproofing is also carried out on the blind area in this area.
- Buy insulation material With low coefficient moisture permeability.
- Thermal insulation boards must be secured using dowels. At the same time, they are fixed at a height of more than 30 cm from the ground.
- Plinth required reinforce in two layers.
- To perform competent cladding of the plinth, use facade slabs. Can buy stone slabs, ceramic tiles or mosaic plaster.
Note! Finishing work should be carried out only after complete installation doors and windows, erecting the roof, laying electrical wiring, settling the erected house and carrying out interior finishing work.
Applying a decorative layer
Usually, when installing “wet” facades, everything ends with applying decorative plaster. But if you prefer structural plaster, it can be additionally painted. This requires special paints that are suitable for finishing the outside of the building. The most common and popular type of structural plaster is “Bark Beetle”.
Conditions for carrying out facade work
The most important parameter is the period of work. There are temperature restrictions related to the quality of the selected materials. All actions are performed at a temperature not lower than +5 degrees.
This factor influences both the quality of the work performed and the service life of wet facades. If the temperature regime is disturbed, the outer layer may crumble or crack.
Technology " wet facade"is interesting because it can be used to do the work yourself. But still, you will need some knowledge and skills for plastering.
“Wet” façade insulation technology:
main pros and cons
Among the main advantages of this technology are the following:
- No hard links V structural elements, because they can act as cold bridges.
- Duration of service structures last up to 25 years. You won't need complex care. And during its operation the facade will have to be painted only a few times.
- This is one of the most accessible And effective options insulation of the house.
- Technology can be used both in multi-storey and private construction.
- The technology makes it possible to significantly reduce heating costs due to increased thermal insulation qualities. It absorbs noise excellently. In addition, this technology makes it possible to implement complex design solutions related to the color and texture of the finish.
When installing a “wet facade”, it is necessary to adhere to the requirements of SNiP. Failure to comply with SNiP requirements reduces the quality of the work done, which leads to the fact that the effectiveness of a wet plaster facade is reduced to almost zero.
But, like other technologies, it has its drawbacks:
- Installation work carried out at a temperature of more than +5 degrees, otherwise you will have to equip a closed space.
- The solution will not be uniform dry out at high air humidity and precipitation. As a result, defects may appear.
- It is important that the solution does not dry out. This danger exists at high solar activity. In this case, additional protection will be needed.
- During installation It is necessary to protect the facades from dust and dirt, protect them from the wind.
Types of thermal insulation systems
depending on the insulation
Today there are two main options used for insulating facades:
- Heavy “wet” facade. When installing it, it is not supposed to glue insulation to the wall surface. Dowels are inserted into it, to which the insulation is attached. For this you will need special hooks.
A special mesh is applied to the facade and plastered, after which it is covered finishing. Plaster layer should be thick enough and be about 40 mm. This option is more expensive, but it in the best possible way suitable for insulating facades in harsh weather conditions. - Lightweight “wet” façade. A similar system is used more often, since it provides minimal load and has a low cost. To install it you will need any flat surface. To install insulation boards, glue and cement are used. Additionally, dowels can be used.
Slabs made of solid mineral wool are suitable for insulation. The final layer of plaster should be about 4 mm thick.
Ceresit wet facade: products
to create perfect thermal insulation
Ceresit offers its customers plaster and primer compositions that are ideal for installing a “wet” facade.
It has special durability. Their service life is at least 50 years.
During this time, no repairs will be needed, and specifications don't get worse.
There are two facade systems Ceresit– MV and teaching staff. The main difference is the use of a certain thermal insulation material and the option of applying decorative coating.
System Ceresit MV involves the use of mineral wool slabs for insulation. And in the Ceresit PPS system, polystyrene foam is used.
