Plaster facade of the Ceresit insulation system: application and technology of the device. Complete set of energy-saving facade system Ceresit system technology

The Ceresit system for thermal insulation of building facades is based on the use of wet thermal insulation technology. The components of the structure include glue, decorative plaster, paint, insulation, etc. Any Ceresit product complies with the ISO 9001: 2000 standard.

The main advantages

Cerezit brand insulation materials are most effective in the complex. The system designers took into account the characteristics of various materials and made them as compatible as possible. The resulting solution was repeatedly tested and then released to the market.

The result - the consumer receives a system, each element of which is precisely calibrated and tested. The creators of the unique thermal protection have not forgotten about decorativeness: a wide selection of finishing materials allows you to insulate any building. Even historical buildings can not only be thermally insulated, but literally restored! After the completion of the work, the structure looks like new.

Facade insulation technology with the Ceresit system is a closed system with a layer of protective plaster over the thermal insulation. The insulation is attached to the outside of the building with cement glue, and a thin protective layer reinforced with fiberglass is created on its surface. The decorative finishing of the facade consists in fine plastering.

In such a 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, the functions of the mineral wool should be supported by polymer or mineral plaster with good vapor permeability. The decorative layer for the Ceresit WM system is unacceptable in the form of acrylic materials.

Mineral wool slabs are glued with Ceresit CT-190 mortar, and the mixture is applied so that the surface with the glue makes up at least 40% of the slab area. After the glue dries, the boards are mechanically fastened with dowels.

After fixing the mineral wool slabs, Ceresit ST-190 solution is applied with a layer of 3 mm with a special trowel. A reinforcing fiberglass mesh is embedded in this layer of the mixture, on top of which another layer of the mixture of 2 mm is applied. Then the surface is leveled so that the mesh is not visible. The dried treated wall is putty with Ceresit ST-16 primer, and after drying, it is plastered with decorative mortar.

Installation with expanded polystyrene

Installation of the Ceresit VWS system on expanded polystyrene, which has a low vapor permeability, is desirable for buildings with good ventilation, which will eliminate excessive moisture. It is clear that such a system is not shown for baths or swimming pools. Facade decoration on expanded polystyrene can be made of any materials.

The system of insulation of facades on Ceresit expanded polystyrene consists of two bases - installation of a wall and installation of a basement. So in the case of a wall, the first layer is glue, on which the expanded polystyrene plates are attached. Then a mineral wool notch is applied, and all layers are reinforced with dowels.

After the glue is completely dry, 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, a waterproofing layer is applied to the wall, on which extruded polystyrene foam is glued. Further, the base is sheathed with any materials at will. In general, the decorative plaster of the Ceresit system can be mineral, silicone, acrylic, etc.

Step-by-step instruction

The Ceresit system is not complicated. However, its installation must strictly comply with the established rules of the manufacturer. Consider the stages of work.

Comprehensive foundation preparation

Insulation begins with an inspection of the facade itself, the roof structure and the basement. The walls and basement area are checked for various damages, any irregularities are eliminated.

Also, specialists study the general condition of the roof and cladding, including waterproofing coatings and a finishing facade layer. After inspection, the nature and volume of contamination on the enclosing structures is determined. Any problems found should be fixed.

Installation of a tile heat insulator

Installation of slabs begins from the corner of the structure. The first horizontal layer is placed on the perforated profile element. The height of the belt along the perimeter is 25 cm, the thickness is 4-8 cm. Products made of expanded polystyrene are glued with the "Ceresit CT-85" compound.

The slabs are installed three days after the preparation of the building. Dowels equipped with cartridges and washers are used as fasteners. Holes for dowelling are drilled either with a perforator or with a drill - the main thing is not to damage the surface of the previously mounted 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 with a perforated aluminum corner. The dimensions of the corners are 25 * 25 * 0.5 mm. In addition, corners near windows, doors and raised edges must be well reinforced. The profile is mounted in a fresh layer of the composition, after which it is puttyed with it.

Further work is reduced to the application of a reinforcing mesh to the adjacent wall to cover the profile, 10 cm in size. To glue the mesh, "Ceresit CT-85" or "Ceresit CT-190" is used.

The thickness of the second waterproofing layer ranges from 1 to 1.5 mm. If the system involves underground insulation, then after the creation of 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 poured back.

Finishing work

The finishing layer, as well as additional fasteners, is applied three days after laying the waterproofing insulation. First of all, it is necessary to prime the surface to be treated with the "Ceresit ST-16" composition. 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 Ceresit CT-35 or CT-36 is 1 hour, CT-137 - 1.5 hours.

When insulating with mineral wool, the finishing materials must have good vapor permeability. Because of this, the finishing layer is allowed to be made only from polymer or mineral plasters. In the system, they are represented by silicone compounds.

Ceresit facade insulation technology is a closed system with a thin layer of protective plaster on top of the thermal insulation layer. The insulation is attached outside the building with cement glue mortars, then a thin but durable protective layer reinforced with fiberglass is made from the mortars on the surface of the insulation. and, finally, the decorative finishing of the facade is carried out with thin-layer plasters. You can find out more about the stages of installation on the page Stages of work.

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 device: expanded polystyrene or mineral wool.

BY THE TYPE OF SURFACE INSULATED

BY PARAMETERS

For further details, please contact our external centers of excellence (VCC), where they will help you choose the most suitable insulation system for your home, make a detailed calculation, complete the system (including insulation and additional materials) and advise a proven and qualified team for its installation.

Thermal insulation system for facades on expanded polystyrene (foam)

In the Ceresit VWS system, expanded polystyrene plates are used as insulation. Expanded polystyrene differs from mineral wool board in more affordable cost and less weight (5-7 times lighter).

However, expanded polystyrene is characterized by low vapor permeability and creates a high resistance to water vapor penetration. This means that the vapor content in the building wall will be slightly higher, which will create conditions for its humidification. But since the "dew point" is in the insulation, condensation will not form in the wall.

If there is sufficient ventilation in the premises and there is no excess moisture (as, for example, in saunas and swimming pools), then no problem arises. At the same time, the vapor permeability of the finishing materials does not play a significant role - the finishing of facades insulated with expanded polystyrene can be performed both with mineral and polymer materials.

BENEFITS

1. Under the influence of moisture, it does not lose its thermal insulation properties

2. Does not contain substances harmful to health

3. Very lightweight and has good strength characteristics (tensile strength about 80 kPa, compressive strength about 130 kPa. Stress at 10% compression of expanded polystyrene is about 80 kPa)

4. More manufacturable due to strength characteristics

LIMITATIONS

1. Low vapor permeability coefficient

2. Low sound insulation properties

3. Not resistant to the effects of most organic solvents

TO components of this system

Mineral wool facade insulation system

In the Ceresit WM system, mineral wool boards are used as insulation. Mineral wool board has two main advantages over expanded polystyrene: incombustibility 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, as dryness means warmth and strength.

The miniplate has little resistance to water vapor. They easily penetrate the building envelope, and condensate is effectively removed, thus the building "breathes". At the same time, finishing materials must also have high vapor permeability. Therefore, when insulating the facade with a minelike, finishing can be carried out only 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 of mineral wool

6. Suitable for any wall base

LIMITATIONS

1. Heavy material

2. Relatively high cost

Components of this system

Almost every developer wants to make a beautiful, warm and inexpensive building facade. However, this is not always possible to achieve. And here Ceresite facade insulation system with a surface plaster layer allows you to combine these three issues into one successful solution.

Technological principles of the Ceresit wet facade system

Ceresit wet facade technology is a multi-layer structure consisting of an insulation material fixed to the wall, a reinforcing layer and painted surface plaster.

Expanded polystyrene or mineral wool boards are used as insulation. The reinforcing layer is made of plastic mesh, and the plaster layer is made of ready-made Ceresit building mixtures. The surface is painted with acrylic, silicate or silicone paint.

Advantages of the Ceresit facade system

Ceresite facade systems can reduce the consumption of basic building materials when erecting walls without increasing heat loss in the cold season. It gives a building a beautiful appearance for a long time and is much cheaper than other structures in terms of cost.

The advantages of this design are:

• to provide an attractive appearance of the building;
• low weight with high thermal efficiency
• lack of "cold bridges";
• displacement of the dew point into the heat-insulating layer, which excludes the formation of wet condensation in the walls;
• complete absence of possible freezing of walls in the event of the formation of microcracks;
• providing additional soundproofing of the walls.

At the same time, the relatively low cost of the necessary materials makes the plaster facade of the Ceresit system quite affordable for most developers. In addition, it should be noted the ease of installation, which significantly reduces the construction time.

Installation of the Ceresit wet facade system

Installation of a wet facade of ceresite is carried out in several stages, which include:

• preparatory work;
• installation of insulation;
• fixing the reinforcing mesh;
• applying a plaster layer;
• surface painting.

High-quality performance of work at each stage is important for all subsequent ones and affects the final result.

Ceresit plastering system - device sequence

Wall surface preparation

Work on the installation of the facade system begins with an inspection of the surface of the walls on which the materials to be mounted will be fixed. At the same time, the outer surface is thoroughly cleaned of any dirt and carefully examined. Defects in the form of cracks, irregularities, potholes are detected and, if necessary, are eliminated.

In some cases, to improve the bearing capacity of the walls, they are covered with a rough layer of plaster. After that, the entire bearing surface is primed.

Preparing the wall for the facade requires special attention - the surface must be flat

To reliably ensure the stability of the system, a U-shaped metal profile is fixed at the bottom of the wall, which plays the role of a support bar. This element is installed around the entire perimeter of the building, as well as over windows and doors. It protects the bottom edge of the structure from moisture and allows the weight of the entire sandwich structure to be properly distributed.

The support profile is installed at a height of 30-40 cm from the ground level or installed on a protruding plinth. A gap of 3-4 mm is left between the individual strips to compensate for possible thermal expansions. For fastening, plastic dowels and self-tapping screws are used, which are hammered in every 15-20 cm.

Insulation installation

Insulation installation is not a complicated process, but a responsible one

After completing the preparatory work, they begin to install the insulation. First, mineral wool slabs or polystyrene are glued to the prepared surface using Ceresit CM-15 or CM-11 wet facade glue. The adhesive is applied with a notched trowel in a wide strip along the entire perimeter of the slab and in a dotted area in the center. This allows you to ensure reliable fastening of the material with an economical use of the adhesive. For correct execution, it is enough to cover 40% of the surface of each board with glue.

Installation of plates is carried out from the bottom up, starting from the bottom row, which is immediately installed along the entire perimeter. Installation of each row starts from the corner. Wherein:

• vertical joints between slabs in adjacent rows should not coincide;
• adjacent slabs are tightly pressed against each other to minimize the thickness of the seams;
• excess glue protruding from the seams is immediately removed.

Insulation fixing scheme with a disc dowel

Three days later, after the glue has completely dried, fixing plastic dowels are installed, the design of which provides for the presence of a wide plate-shaped head, a plastic nail and a bursting hammered nail.

The length of the dowels used depends on the thickness of the insulation and the material of the walls. The immersion of a nail into a wall made of porous materials should be at least 9 cm, and for solid at least 5 cm. 6-10 pieces are hammered into each plate.

Installation of the reinforcing layer

Reinforcement begins no earlier than a day after the installation of the insulation. As a material for the reinforcing layer, a facade construction mesh made of fiberglass, which has a special alkali-resistant coating, is used. Neighboring strips of the mesh should overlap each other by 5-8 cm. If necessary, reinforcement of individual sections of the mesh should be applied in two layers. At the corners, in doorways, windows and on lintels, a special corner with an edge mesh is installed.

The reinforcing material is covered with a layer of adhesive composition 2-3 mm thick, and the total layer thickness can be up to 5 mm.

The final stage of the Ceresit wet facade construction is the finishing. It provides for the application of a plaster layer to the surface and its subsequent painting. You can start this work only after the reinforcing layer has completely dried, which lasts 3-5 days.

The material for the plaster layer must have a high vapor permeability, good resistance to adverse weather conditions and high mechanical strength. For this, special dry facade mixtures Ceresit are used. Plastering work can be carried out in dry weather at an outside air temperature of + 5 ° C to + 30 ° C, while direct sunlight is not allowed on the fresh plaster layer.

The surface is painted with a roller or through a spray gun with Ceresit acrylic, silicate or silicone paints.

Two systems of Ceresit "wet" insulating facade

Today, two systems of Ceresit warm facades have been developed and are successfully used - CWS and WM. Their difference lies in the form of insulation used in the first case, it is expanded polystyrene, and in the second, mineral wool slabs. The rest of the construction elements are the same in both cases.

Ceresit VWS system

In this system, expanded polystyrene plates or polystyrene foam are used as insulation. These materials differ from mineral wool boards in lower specific gravity and better thermal insulation properties. At the same time, foams have a very low vapor permeability, which practically excludes the removal of water vapor from the load-bearing walls and insulation structure.

Since, as a result of the performed insulation, the "dew point" will go beyond the walls into the insulation zone, moisture will accumulate between the moisture-proof insulation and the surface of the walls. This can lead to the formation of mold and mildew with the consequent destruction of the base wall materials. In order to avoid the accumulation of such moisture in the premises, it is necessary to organize general ventilation with increased air exchange, which may entail an increase in heat losses. It is worth noting that this problem occurs mainly in rooms with excessive humidity, for example, in swimming pools, saunas, showers. The vapor permeability of the finishing materials is not important, because polystyrene foam can be faced with any materials

It should be noted that expanded polystyrene is cheaper, lighter and stronger than mineral wool boards. Therefore, its use is justified for economic and technical reasons.

Cerezit VWS device diagram

1. Expanded polystyrene plates
2. Mineral wool notch
3. Dowel
4. Base plaster layer
5. Fiberglass mesh
6. Primer for finishing
7. Decorative plaster layer
8. Waterproofing layer

Video: device example facade Ceresit with expanded polystyrene plates

Ceresit WM system

Here mineral wool slabs are used as insulation. Unlike expanded polystyrene, this insulation has good vapor permeability and the structure can "breathe". At the same time, unlike the previous system, here facing materials must have high vapor permeability, therefore, mineral or polymer plasters are used as finishing. In addition, mineral wool belongs to non-combustible materials, which is very important in the event of a fire.

Of the shortcomings, it is worth noting that this wet facade system has a high specific gravity, which makes the structure heavier, it is more expensive than foam insulation and is not as durable as they are. The price of the facade device according to the Ceresit WM system is relatively high.

Diagram of the Cerezit WM device

1. Mineral wool slabs
2. Dowel
3. Basic plastering words
4. Fiberglass mesh
5. Primer for finishing
6. Decorative plaster layer
7. Waterproofing layer
8. Extruded polystyrene blocks

Installation instructions for Ceresit mineral wool façade system

Comparative characteristics of Ceresit wet facade systems

Finally

The use of Ceresit wet facade technology is a technically justified and cost-effective technical solution. This system effectively retains heat in the building and is durable and beautiful in appearance.

Possesses properties that prevent external influences, and also add decorativeness to the facade, along with protecting the walls.

The modern market is rich in high-tech means for plastering the facade: they include facade plaster from various manufacturers, including a mixture of Ceresit.

This manufacturer meets all the requirements of the facade coating. Ceresit is a company that has been producing products for construction and decoration for more than a dozen years.

Plants for the production of Ceresit decorative plaster are located in many countries, including Russia, which indicates the demand for the material, and, accordingly, the high quality of products. In addition, the technology for the production of facade mixtures is slightly different from analogues.

Ceresite consists of high-tech constituents of substances that endow the material with appropriate qualities. A wide range of products will help you decide on the choice of material. The material is presented by the manufacturer in different textures, with different compositions (depending on the purpose).

Variety of colors and textures

Dignity

Ceresit is widespread precisely because of its positive characteristics:

• a high rate of elasticity (the material contains components that enhance the elasticity and viscosity of the material);
• ease of application(standard application with a spatula does not differ from similar work with other mixtures);
• creates an impact-resistant coating (mechanical resistance is guaranteed by the manufacturer);
• resistance to fading (even the colored mixture does not fade when exposed to ultraviolet rays);
• material is durable(operational properties remain for more than 30 years);
• environmental friendliness (plaster does not contain harmful substances);
• moisture resistance (the coating repels water and prevents its penetration into the surface);
• pollution resistance;
• resistance to temperature extremes;
• variety of colors and shades.

Color solutions

In addition, the material has good adhesion properties, which allows it to be used on various surfaces. The classification for use in cold and warm weather also helps in selection, especially when performing work in the cold season.

Flaws

No technical flaws were found in this mixture: the material has established itself as a quality product. If you can call the high price (in comparison with analogues) a disadvantage, then this is the only thing that does not always suit the buyer. The price is quite consistent with the quality, therefore, by overpaying a little, you can feel complete satisfaction from the quality of the products.

Technical characteristics of Ceresit plaster

Ceresit is a certified product, facade mixtures (for example Decor Plus) have the required quality criteria, have the following technical characteristics:

• density - 1.7 kg per dm³;
• application temperature - from + 5 ° С to + 30 ° С;
• time for drying the layer before texture formation - up to 15 minutes;
• resistance to moisture (rain) - after 24 - 48 hours;
• consumption - from 2.5 kg / m² to 2.7 kg / m² (for grain of 2 mm), from 3.5 to 3.8 kg / m² (for grain of 3 mm).

The plaster has persistent hydrophobic properties, low water absorption, resistance to pollution.

NOTE!

The mixture should not be frozen, and the opened packaging should be used as soon as possible, kept hermetically closed.

Specifications

How Ceresit plaster stands out from competitors

To create a decorative outer coating, a facade plaster with a grooved structure: this mixture is excellent for concrete surfaces, gypsum, sand, cement.

This feature allows you to use this facade material on any surfaces while maintaining the texture.

Due to the composition of the plaster, its elasticity is especially distinguished, in comparison with other mixtures... In addition, such a coating does not fade and is mechanically stable.

If we consider the products of other manufacturers, then not all have a division of mixtures into summer and. The question of choice according to this parameter is especially relevant when working in unconventional times for repair work: in winter or cold spring or autumn.

Types of Ceresit plaster

High-quality coatings Ceresit are classified according to their composition:

• ... Designed for finishing. The composition prevents the appearance of fungi, masks small cracks, belongs to expensive mixtures;
• ... They are able to hide defects on the surface, do not have vapor permeability, have a smooth texture, have increased strength indicators;
• ... Due to the presence of cement in the mixture, this coating is durable, breathable, elastic, easy to apply;
• ... The main component of the mixture is silicate resin. These mixtures have elasticity, special strength, are most often used for indoor work (in rooms with high humidity), as well as for outdoor work;
• ... They are used for external coating of facades.

Comparison of species

In addition, Ceresit compounds are made for subsequent painting or for finishing without painting.

Facade mixtures are divided into "winter" (you can work with them at temperatures below 0 ° C) and "summer" (for work in hot weather).

Ceresit plaster texture

Ceresit compositions have two textured patterns, the texture of which is achieved due to the presence of granules in the composition and by means of a certain application:

• ... This texture should be applied in a thin layer. Due to the presence of a large number of grains in its composition, a peculiar pattern is formed during application. Suitable for outdoor and outdoor use;
• "Lamb"... Due to the special texture, the "lamb" effectively hides the flaws or unevenness of the walls, which subsequently acquire a different, improved look.

Types of textures

Any texture can be presented in different colors, and, if necessary, it can be additionally colored. For coloring, it is advisable to use Ceresit paints, which may contain acrylic components, silicate or silicone.

How to properly prepare the mixture

To prepare the mixture, you must have a container (bucket) for mixing it (use only stainless steel dishes). The manufacturer most often produces plaster in 25 kg bags.

For the correct calculation of the required amount of the mixture, it should be borne in mind that The recommended consumption of the mixture for 1m² is from 2.5 kg to 4 kg.

For 5-6 liters of water, it is necessary to fill in 25 kg (bag) of dry composition. Use cold water.

Mix the plaster with a mixer or concrete mixer.

The mixture is left to dissolve completely for three minutes, and then it should be mixed again.

The prepared mixture should be used within three hours.

You cannot use the frozen mixture.

Mix finishing technology

Before applying Ceresit mixture, you should prepare the base for finishing:

• clean the surface from other coatings, sand, debris;
• align (if necessary) the entire base.

The border between the facade surface and the foundation is covered with a basement profile before coating with facade plaster.

Before applying the facade plaster, a reinforcing layer should be applied:

• use a layer of Ceresit waterproofing mixture with a thickness of 2 mm to 3 mm;
• lay it so that it is drowned in the mixture;
• then another layer of the solution should be applied to the mesh;
• even out the mixture and wait until it dries.

Reinforcing mesh laying

To complete the finishing with Ceresit plaster, you must consistently perform the following steps:

• the prepared surface should be treated with a primer: this must be done for better adhesion of the plaster to the wall. When working with Ceresit plaster, it is recommended to use a primer paint for the facades of the same manufacturer in the same color as the topcoat;
• after one coat of primer, plaster should be applied... To apply it, use a polisher;
• the composition should be applied in a thin layer, which should correspond to the thickness of the grain;
• when applied to a small area, the plaster should be leveled without waiting for it to dry;
• to give texture, use a polyurethane float, which is used to treat the surface after it has stopped sticking.

Creating an invoice

To add texture, plaster should be applied in a circular, horizontal application, using a polyurethane polish.

Creation of various textures

For the texture "bark beetle" mixtures with grain up to 2 mm to 3.5 mm in diameter are used. In this case, the surface is rubbed with a polisher strictly either vertically or horizontally. "Bark beetle" is made in white version, therefore additional painting is required.

NOTE!

Various rollers are used when applying pebble plaster, spatulas or graters and a mixture containing pebbles with a diameter of 1.5-2.5 mm.

Plaster grout

Thus, Ceresit plaster is widespread due to its high-quality composition, compliance with high requirements for impact resistance, endurance, decorativeness, durability. These mixtures, despite the fact that their cost may be higher than competitors, are in great demand. The facade covered with such plaster will acquire individuality and will be effectively protected.

Useful video

Do-it-yourself application of the decorative mixture "Bark beetle" on the facade of the building:

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