Weber term building wall insulation characteristics. Decorative plasters. Where to order facade cladding

Stroy Vek City construction company offers facade cladding services for residential and commercial buildings using the Weber (Vetonit) facade insulation system. It provides excellent operational and decorative properties. Installation of plates is used for different regions of the Russian Federation. The system itself meets European and Russian quality standards.

This cladding retains heat in the house and saves heating costs. The main elements of the system are:

• thermal insulation boards;
• adhesive layer;
• reinforcing fiberglass;
• primer layer;
• decorative and protective plaster.

The plates are fixed with the help of the dowels included in the kit. Facade silicate or silicone Weber paints can be used as a finish.

Advantages of Weber facade systems (Vetonit)

Cladding a building with a wet façade, consisting of several layers, significantly increases the level of comfort and provides good heat and sound insulation. The light weight of the slabs does not require additional strengthening of the foundation due to the low load on the walls.

Facade systems Weber have many advantages. Among them:

• resistance to the formation of fungus, bacteria and mold;
• maintaining a favorable microclimate in winter and summer;
• low thermal conductivity;
• good sound insulation;
• affordable cost;
• natural air circulation with the removal of excess water vapor;
• wide choice of color schemes;
• durability (more than 25 years of service);
• minimum labor costs for installation;
• safety and environmental friendliness.

The applied technology of cladding with facade slabs based on mineral fiberglass requires certain knowledge and skills. Experienced craftsmen of our company will easily cope with the task.

Where to order facade cladding

You can order the exterior decoration of a house in Moscow using Weber (Vetonit) wet facade technology at a reasonable price at Stroy Vek City. Extensive professional experience allows us to implement projects of any complexity. In our work, we use only proven high-quality materials that are designed for a long service life with the easiest possible care.

To place an order for cladding, contact the company's managers by phone or via e-mail.

Front materials Weber. Vetonit, among professional Russian builders, are highly valued. These high-quality and high-tech materials meet all the requirements of the modern construction market. Their manufacturer, the Finnish company Saint-Gobain Weber Oy Ab, has gained an excellent reputation for its systematic approach and constant search for optimal solutions for more than a hundred years.

Facade insulation systems using plasters are divided into two types depending on the thickness of the layer. Thick-layer systems (about 30 mm) are highly resistant to mechanical stress and are used on simple facades. However, if there are complex architectural forms on the facade, thin-layer types of plasters are used. It is these multi-component mixtures that Weber offers. They can also be divided into two groups: facade insulation systems and decorative plasters. Weber façade insulation systems include a range of mixtures designed for gluing specific thermal insulation materials based on: expanded polystyrene (Weber.therm EPS), mineral stone wool (Weber.therm min) and glass staple fiber (Weber.therm comfort). A universal option is the Weber.therm S 100 reinforcing adhesive mixture, which solves two problems at once. It can be used both for gluing heat-insulating boards made on the basis of expanded polystyrene, polyurethane foam, stone or fiberglass, and for creating a base plaster layer on the outer surface of the heaters listed above.

Master class on the installation of the Weber.therm facade system in the "Professional showroom of building ceramics" of the Slavdom company

Weber.therm S 100 reinforcing and adhesive mixture is suitable for a wide range of substrates - brick, concrete, cellular concrete blocks and aerated concrete, for substrates covered with cement and cement-lime plaster. It is suitable for new construction and renovation of buildings. For possible frosts, the Weber.therm S 100 winter option is available. This is a huge plus of this system, which distinguishes it from analogues of other manufacturers! The Weber.therm S 100 winter system allows you to work on gluing insulation, reinforcing and leveling the facade from early spring to late autumn (up to -10 ° C). And seasonality for builders (expansion of time limits) is the most important factor when choosing materials. Bonding of thermal insulation is carried out by applying a solution around the entire perimeter of the slab and at least three internal points, with further fixation to the wall. The consumption of the solution is about 6 kg/m2. The base plaster layer is created no earlier than 24 hours after installation, with a notched trowel, 10-12 mm thick. Then a reinforcing fiberglass mesh is pressed into it and smoothed with a spatula. The solution consumption for this operation is approximately 5 kg / m2.

Lime-cement facade plaster Weber. Vetonit 414 UNIRENDER (Unirender) has high frost resistance (more than 100 cycles), vapor permeability and is reinforced with microfiber. It is intended for plastering surfaces made of brick, concrete, cement-lime and galvanized metal mesh, with a layer thickness of 8-30 mm; as well as for creating a base leveling layer in facade insulation systems with flexible ties and a thick outer layer of plaster. Unirender plaster is used both in new construction and for renovation. For professional builders, this position is very relevant, since it can be applied not only manually, but also with the help of mortar pumps.

Cement plaster Weber.stuk cement - elastic, frost-resistant (more than 75 cycles), not subject to shrinkage. It can be used both outside and inside buildings. It is designed for plastering concrete monolithic surfaces with a layer of 5-30 mm; correction of defects (sinks and voids up to 50 mm deep); as well as for leveling external and internal walls and ceilings made of concrete, reinforced concrete, brick, cellular blocks, as well as pool bowls before laying ceramic tiles, before painting or wallpapering. In case of possible frosts, a mixture of Weber.stuk cement winter is used.

Decorative plasters

Now consider decorative plasters. All of them are used at positive temperatures in the range from 5 to 30°C. To create a smooth surface, a silicate-silicone decorative and protective plaster Weber.pas modelfino with a grain size of 0.5 mm or Weber.pas decofino with a larger grain size of 1.0 mm is used. This type of plaster has high vapor permeability, frost resistance, resistance to exhaust gases and alkalis. The plaster is hydrophobic, so the facade, if necessary, can be washed. It is tinted in 218 colors, in accordance with the Weber color palette, and is intended for decorating elements made of PPS, PSB-S and PPU.

If, according to your plan, the facade or its parts will be rough, in this case the choice of plasters is very large. So, to create bright colorful accents, decorative and protective acrylic plaster Weber.pas akrylat is useful. The plaster is tinted in 248 colors and is produced in five types of textures: “fur coat” (from fine-grained 1.5 mm to coarse-grained 3.0 mm) and “bark beetle” (2 mm and 3 mm). They are recommended as a finishing coat in systems with expanded polystyrene insulation. It should be noted that the “fur coat” and “bark beetle” plasters differ not only in structure, but also in the type of application. Therefore, it is best to entrust the design of the facade to professionals.

The granular “fur coat” structure, with a grain size of 1.5 mm to 3 mm, is also used by the silicate-silicone decorative plaster Weber.pas extraClean. It has a high vapor permeability and self-cleaning effect, suitable for facade insulation systems with both expanded polystyrene and mineral wool. It can be tinted in 218 colors.

Mineral-organic decorative plaster Weber.pas topdry> is also recommended for creating a topcoat in facade insulation systems with mineral wool and expanded polystyrene. This type of plaster can be tinted both in accordance with the Weber color palette and in non-standard colors. It is available in different grain sizes and structure (“fur coat”, bark beetle) and is highly resistant to fungus and mold. The plaster is vapor-permeable, with a low coefficient of contamination, does not contain biocidal preservatives. However, there are technological limitations in using Weber.pas topdry: you must avoid working in rainy weather and in direct sunlight.

For difficult weather conditions, Weber.pas silicon silicone plaster is excellent. This frost-resistant, vapor-permeable and elastic material is intended for applying the finishing layer in various facade insulation systems. The plaster is produced in five types of textures, tinted in 218 colors and has a self-cleaning effect.

Original facade solutions are obtained using Weber.pas marmolit mosaic plaster. The range of fine-grained (1.5 mm) and medium-grained (2.0 mm) decorative and protective mosaic plaster includes 16 colors. The high strength, frost resistance and hydrophobicity of the material make it possible to use it as a finishing coating for finishing basements and other concrete, reinforced concrete surfaces leveled with cement plasters or putties, as well as for reinforced layers of facade insulation systems.

The advantages of Weber.min decorative mineral plaster are its high vapor permeability, frost resistance (100 cycles), environmental friendliness and incombustibility. True, it is produced only in white, with grain sizes from 1.0 mm to 3.0 mm (fur coat) and 2.0 mm bark beetle), therefore, it requires subsequent priming (Weber.prim S10) and painting Weber.ton micro. The technological cycle of applying Weber.min plaster is quite long (it dries for 5 days before painting). However, it is quite popular when plastering facades made with mineral plasters and putties, including in facade insulation systems.

As can be seen from our review, the selection of facade plaster must be carried out wisely, taking into account a number of circumstances. By contacting Slavdom, you will receive answers to all questions and the most comprehensive consultations.

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Weber.Pas "Akrylat Fur coat 1.5 mm" Acrylic decorative plaster (25kg)

For final (finish) finishing on plastered and primed surfaces. For the protection and decoration (colour and texture) of facades of new, reconstructed, modernized or renovated buildings.

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Weber.Pas Akrylat Fur coat 2.0 mm Acrylic decorative plaster (25 kg)

For final (finish) finishing on plastered and primed surfaces. For the protection and decoration (colour and texture) of facades of new, reconstructed, modernized or renovated buildings. Also suitable for the final finishing of the bonded thermal insulation system Weber.therm

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Weber.Pas ExtraClean 1.5 mm Fur coat Decorative silicate-silicone facade plaster (25 kg)

This is a universal finishing material that has found wide application for various repairs. Tintable decorative plaster is an excellent alloy of silicate and silicone substances, which allow you to create a durable and even layer of cladding. Quality plaster Weber.pas extra Clean has a number of advantages, including hydrophobicity and elasticity. It is absolutely not afraid of moisture and has high rates of vapor permeability. It is an ideal material for both interior and exterior decorating.

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Weber.Pas ExtraClean 2 mm "Fur coat" Decorative silicate-silicone facade plaster (25 kg)

Created on a mineral basis, this decorative plaster has excellent technical properties. The composition of the mixture includes silicate and silicone substances, which give the material a special vapor permeability. The main area of ​​application of the product is thermal insulation of building facades. Decorative plaster extraClean 2mm allows you to create surfaces with the “fur coat” effect, which have high aesthetic properties and qualitatively protect the facades of buildings from aggressive environmental factors.

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Weber.Pas ExtraClean 2 mm Bark beetle Decorative silicate-silicone facade plaster (25 kg)

This type of plaster materials has high hydrophobic properties and vapor permeability. This allows the use of extraClean 2mm bark beetle in façade thermal insulation systems. No less important are the decorative qualities of the material: due to its high aesthetics, it has also found application for interior decoration (walls and ceilings in rooms). Austrian silicate-silicone plaster Weber.pas can be tinted in more than two hundred shades. It is based on mineral substances of two millimeter grain size.

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System uniqueness WEBER.THERM COMFORT that all the materials included in its composition are from one manufacturer - "Saint-Gobain". Today there are about 40 similar systems on the market, but one way or another, they are all prefabricated. Some, for example, produce mixtures and decorative plaster, and take the insulation from another brand. Our company is responsible for the entire system as a whole: from the quality of raw materials that are used in the production process to the finished product that goes to the consumer.

WEBER.THERM COMFORT– facade insulation system with mineral wool thermal insulation based on glass wool.

System Benefits:
- Easy.
- Nonflammable.
- Vapor permeable.
- High heat-shielding properties.

Purpose of the system:
- For heat / sound insulation of old and new buildings and structures.
- For protection and decorative finishing of external walls of buildings.
- To save heat on heating.
- To reduce the power of heating equipment and air conditioning systems, and therefore extend the life of the equipment.
- To reduce the likelihood of mold on the surface of walls inside buildings and structures.
- For the reconstruction and sanitation of damaged facades.

System elements:
1- Adhesive mix weber.therm MW
The mixture is intended for the installation of heat-insulating mineral wool boards on the following substrates: concrete, ceramic and silicate brickwork, surfaces plastered with cement, cement-lime plasters, surfaces made of cellular concrete. The thickness of the layer during the installation of thermal insulation is from 5 to 20 mm.

2- Isover thermal insulation boards
The system uses non-combustible glass wool mineral wool boards with a layer tensile strength of at least 15 kPa. The maximum permitted thickness of thermal insulation in the system is 200 mm.

3, 6- Reinforcing adhesive mixture weber.therm S100
The mixture is intended for the installation of thermal insulation boards made of expanded polystyrene and mineral wool on the following substrates: concrete, brickwork made of ceramic and silicate bricks, surfaces plastered with cement, cement-lime plasters, surfaces made of cellular concrete. It is also designed to create a base plaster reinforced layer on the surface of heat-insulating boards. At ambient temperatures from -10 to +5 0 C, it is recommended to use weber.therm S100 winter.
Layer thickness:
- when installing thermal insulation from 5 to 30 mm;
- base plaster layer from 3.5 to 8 mm.

4- Facade reinforcing glass meshes
Characteristics of facade glass meshes with alkali-resistant impregnation (detailed information is given in the table below).

5- Exterior dowel
For additional mechanical fixation of heat-insulating plates, facade dowels are used, which have the following characteristics:
Poppet head diameter, mm 60
Rod diameter, mm 8.
Anchoring depth, mm 25–70, depending on the wall-forming material.

7- Primer weber.prim Uni
Designed for toning, strengthening and dust removal of the base, forms a uniformly absorbent surface before applying decorative plasters, facilitates their application.
Poppet head diameter, mm 60.
Rod diameter, mm 8.
Anchoring depth, mm 25-70, depending on the wall-forming material.

8- Decorative and protective plasters
To create a decorative protective layer, you can use the following types of decorative plasters:
- silicate-silicone - weber.pas extraClean,
- mineral-organic - weber.pas topdry,
- silicone - weber.pas silikon,
- mineral - weber.min (requires subsequent coloring).

For decoration of decorative elements, window and door openings are used: weber.pas modelfino, weber.pas decofino.
Types of structures: granular ("fur coat"), furrowed ("bark beetle").

The light reflection coefficient should be at least 25-30%.

Facade paints
The following paints are used for coloring weber.min:
- silicate - weber.ton variosil,
- silicone - weber.ton micro V

Colours: standard, according to the Weber color palette. Tinting in non-standard colors is possible.
The light reflection coefficient should be at least 25-30%.

There are three main layers in the "wet" type weber.therm external insulation system:

• a heat-insulating layer of a board made of heat-insulating material with a low thermal conductivity (for example, mineral wool boards or expanded polystyrene boards), which is attached to the wall with a special adhesive and fixed with dowels. This layer is necessary to ensure the insulation of the building envelope. Its thickness is determined by thermotechnical calculation, and the type of material is determined by fire safety requirements.
• the reinforced layer consists of a special adhesive composition reinforced with an alkali-resistant mesh; it provides adhesion of the protective and decorative layer to the surface of the heat-insulating plate.
• protective and decorative layer primer and decorative plaster (mineral or polymer) or special "breathable" facade paints. This layer protects the heat-insulating material from external adverse effects (precipitation, ultraviolet radiation, etc.), and also allows you to give an attractive appearance to the facade, providing a high expressiveness of the building.

The system of external thermal insulation of building facades "Weber.Therm" "Weber.Therm"

To the album of technical solutions STF V.T 01.07 and STF V.T 01.0701 for mass use

Technological conditions for the installation of the external thermal insulation system for building facades Weber.Therm (Weber.Therm)

Preparing the object for installation

1.1. End of wet processes.
On the object to be insulated, it is recommended to complete all processes that give the walls an increased technological humidity, such as plastering, coating, etc.

1.2. static defects.
The project of insulation of buildings with static defects should be agreed with the specialist in the insulation system and the designer. All cracks and gaps in the structure must be considered for their possible impact on the performance of the thermal insulation system.

1.3. Related work.
Any related work on the facade of the object, for example, sheathing of vaults and openings, mounting boxes, holders of lightning rods, consoles and brackets, for fixing additional structures on the facade, etc., must be carried out in accordance with the recommendations of a specialist in the insulation system so that during the work, there was no damage to the system, mechanical damage, system leakage, etc.

1.4. Additional requirements.
In places of differences in the thickness of the structure, a change in the thickness of the heat-insulating material should also be carried out in accordance with the insulation project. All gaps, drops and breaks in the system, for example, in the case of non-insulated window openings, should be considered from the point of view of eliminating thermal defects ("cold bridges").

1.5. non-standard situations.
The issues of building heating, for example, heating only part of the object, insulation with insulating material of uneven thickness, insulating materials of different types on the same area, etc., should be addressed already at the design stage, according to the technical solutions album.

1.6. Mounting scaffolding.
When installing scaffolding, the future thickness of the thermal insulation should be taken into account in order to provide the nominal working space required for installation (4045cm + insulation thickness). Fastening elements should be installed with a slight downward slope from the wall to prevent possible water ingress under the insulation.

Design preparation.

2.1. processing conditions.
The temperature of the base and ambient air must be at least +5°C, unless materials are used that allow work to be carried out at a lower temperature (drying accelerator for acrylic plaster, Weber.Therm S100 Winter reinforcing-adhesive mixture for working at temperatures up to 10°C ). When gluing the insulation, wind and rain should be avoided. When applying the final decorative layer, exposure to direct sunlight, wind and rain should be avoided. Under conditions that favor rapid plaster drying (temperature above +25°C, strong wind, heated base, etc.), all conditions (including, for example, surface area) that affect the possibility of correct work must be taken into account. Under conditions that make drying difficult (low temperatures, high relative air humidity, etc.), delayed drying and therefore the possibility of rain damage for more than 8 hours must be taken into account.

2.2. structure moisture.
All defects that increase the risk of moisture penetrating into the thermal insulation system should be eliminated. Substrate humidity should not significantly exceed atmospheric humidity. If the humidity of the base is high before the insulation work, it should be dried, the efflorescence of the plaster should be eliminated.

2.3. Damaged surfaces.
Surfaces affected by mold, etc., should be thoroughly cleaned and then treated with an antiseptic to prevent re-infestation.

2.4. Foundation cleanliness.
Before starting work, the base should be cleaned of dirt, grease and mortar residues. Coatings and plasters with poor or insufficient adhesion to the substrate should be removed. The insulating material can only be glued onto the repaired base after the repair materials have dried.

2.5. Foundation strength.
Recommended average strength of the base is 200 kPa, the lowest allowable strength is not less than 80 kPa.

2.6. Moisture absorption capacity of the base.
With increased moisture absorption capacity of the base, it must be treated with an appropriate primer.

2.7. The evenness of the base.
The maximum deviation from the plane of the base should be no more than 10 mm per 2 m. With a larger deviation, it is possible to level individual sections, or the entire surface, using leveling pads made of the appropriate material, following the technology specified in the album of technical solutions. The thickness of the adhesive layer when gluing insulating materials should not exceed 30 mm.

System installation.

3.1 Mounting with plinth profile.
The width of the plinth profile must match the thickness of the insulating material used. The profiles are fastened with dowels, the distance between the profiles is 23 mm. If it is necessary to align the profiles, use spacers (3 or 5 mm thick expansion joints). To fasten the profiles, it is necessary to use plastic connectors (see fig. 1). The gap between the profile and the gasket should be sealed with an adhesive solution.

3.2. Mounting without plinth profile.
The system can be mounted without a plinth profile, using only a fiberglass mesh, a profile with a dropper and a mounting bar with the obligatory installation of fire cuts (see Fig. 2).

3.3 Water runoff.
In the place of laying the system and at the top of the openings, it is necessary to ensure the runoff of water. To do this, you can use a base profile (see Fig. 3) or a special profile with a drip (see Fig. 4).

4.1. General requirements.
Insulating boards are glued from the bottom up, the long side of the board is horizontal. Only in cases where it is justified, it is possible to stick the insulating material, placing the long side vertically or in the plinth parts under the plinth profile and under the relief, from top to bottom. In these cases, decisions must be made on an individual basis in consultation with an insulation specialist, taking into account suitable thermal insulation and other materials.

4.2. Preparation of a solution of weber.therm S100 reinforcing-adhesive mixture.
Pour 5.05.5 liters of water into a container and pour 25 kg of glue (bag). In this case, the mixture should be added to water, and not vice versa. It is necessary to knead the glue in clean water at a temperature of about 20 ° C. The more porous the base and the higher the temperature of the medium, the more water is required for mixing. It is necessary to mix the adhesive mechanically using a drill with a mixer nozzle at an average speed (400-600 rpm) until a homogeneous mixture without lumps is reached, then leave for 5 minutes to "ripen", then mix again. The solution prepared for use must be used within 3.54 hours at 20°C.

4.3. Application of weber.therm S100 reinforcing adhesive mixture.
The adhesive solution is applied manually (see fig. 5) or by machine (see fig. 6) always along the perimeter and in the center of the slab (in an arbitrary line or at least at three points). The adhesive surface must be at least 40% of the entire area of ​​the thermal insulation board. If the base is even, you can apply the solution to the entire surface of the plate, using a notched trowel. When gluing fire protection cuts from mineral wool board, apply the solution to the entire surface. (See Fig. 7). The surface of the mineral wool incision must be primed by rubbing, with a spatula, the solution into the surface, for better adhesion.

Rice. five		Rice. 6		Rice. 7		Rice. 8

4.4. Basic rules for gluing thermal insulation material.
When applied to the slab, the solution must not fall on the side edge of the slab. Excess solution must be removed. When sticking the plate on the wall; the formation of cruciform joints of plates and continuous vertical slots should not be allowed, especially at the corners (see Fig. 8). The plates of the first row must be installed on the basement profile close to each other and not protrude beyond its borders. When installing in openings, it is recommended to glue the boards on the surface with the overlapping of the opening. Then the plates are glued along the slope. After the adhesive has dried, the boards are cut flush with the inner surface (see Fig. 9). When gluing plates at the corners of openings, continuous horizontal or vertical slots should not be allowed; the hanging part of the plate is cut off (see Fig. 10). The boards are glued end to end. Slots larger than 2 mm should be filled with the same heat-insulating material. Gaps between boards (styrofoam) up to 4 mm wide can be filled with insulating foam with a low coefficient of expansion.

Use solid boards first. The use of slab trims is only possible if they are wider than 150 mm and are not installed at the corners or at the edge of the system.

4.5. Vertical slots on cracks and uneven base.
Joints between slabs should not be located at basement cracks, at the interface between two dissimilar base materials (see fig. 11) and where the slab thickness changes due to thickness differences in the structure (see fig. 12). The overlap of such places should be at least 100 mm.

5.1. The size of the plate of dowels for fastening.
For expanded polystyrene plates, dowels with a plate diameter of at least 60 mm are used. Dish-shaped dowels can be installed both at the junction of the plates, and on their plane.

5.2. Time and method of installation.
The dowels are installed after the adhesive has dried so that the insulating material does not move and its uniformity does not occur, usually from 24 hours after gluing. The dowel should sit tightly, not move, its plate is deepened by about 23 mm into the surface of the plate and should not protrude above the surface. Use dowels of the correct length depending on the thickness of the insulating material. When installing the dowels, the insulating material must not be damaged.

5.3. Mounting depth and non-standard bases.
A universal dowel with a diameter of 8 mm must be fastened at least 50 mm in solid support material. Stucco is not considered a load-bearing material.

For a solid base, dowels with a diameter of 8 mm are used with a short spacer zone and with a fastening length to a stable solid base (excluding plaster) of at least 35 mm.

For a base made of hollow material, dowels with a diameter of 8 mm are used with a long expansion zone and with a fastening length to a stable, solid base (excluding plaster) of at least 55 mm. Dowels must be screwed.

For the foam concrete base, dowels with a diameter of 8 mm are used with a long spacer zone and with a fastening length to a stable solid base (excluding plaster) of at least 75 mm.

5.4. Number of dowels and doweling scheme.

The number and pattern of doweling dowels is calculated per unit area.

The minimum number is 4 pcs/m2.

At the corners of the object (edge ​​zone), the number of dowels should be increased. An example of placing dowels on insulating boards (see Fig. 13).

Preparation for applying the reinforced layer.

6.1. Alignment of insulating material.
To facilitate the application of the reinforced layer, remove any unevenness with sandpaper on a larger trowel or a special float.

In case of soiling of the surface of the boards, due to the long waiting time between gluing and further processing, the entire surface must be sanded.

The maximum allowable value of the unevenness of the heat-insulating layer is 5 mm for a length of 1 m.

6.2. Reinforcement of protruding corners.
It is recommended to reinforce all corners by embedding the corner profile with a mesh into the previously applied layer of adhesive solution (see Fig. 14).

The corners of the openings are reinforced with diagonally placed strips of fiberglass mesh 200x300 mm in size, which are embedded in the previously applied layer of adhesive solution (see Fig. 15).

6.3. Temperature seams.
In the presence of expansion joints, a special profile with a grid is used, which is embedded in the previously applied layer of adhesive solution (see Fig. 16).

7.1. Preparation of a solution of reinforcing-adhesive mixture weber.therm S100.
Pour 5.05.5 liters of water into a container and pour 25 kg of glue (bag). In this case, the mixture should be added to water, and not vice versa. It is necessary to knead the glue in clean water at a temperature of approximately 20oC. The more porous the base and the higher the temperature of the medium, the more water is required for mixing. It is necessary to mix the adhesive mechanically using a drill with a mixer nozzle at an average speed (400-600 rpm) until a homogeneous mixture without lumps is reached, then leave for 5 minutes to "ripen", then mix again. The solution prepared for use must be used within 3.54 hours at 20°C.

7.2. Applying a reinforced layer.
The reinforced layer is created by embedding the glass fiber mesh into the weber.therm S100 reinforcing-adhesive mixture applied to the heat-insulating coating using a notched trowel so that the mesh roll turns from top to bottom and at the same time is pressed into the layer with a stainless steel trowel from the center to the edges to a depth approximately 1/3 of the layer thickness (see Fig. 17).

The grid should not appear on the surface after smoothing. If necessary, a second layer of reinforcing-adhesive mortar should be applied within 2 days after applying the first layer. In case of longer exposure, the surface should be primed. The total thickness of the reinforced layer is usually 46 mm. The fiberglass mesh should be placed 1/21/3 of the thickness of the base layer, closer to the outer layer. The minimum coverage of the fiberglass mesh with mortar must be at least 1 mm. When using profiles with a drip (plinth profiles, corner profiles with a drip), a reinforcement layer with fiberglass mesh should be laid up to the bottom edge of the profile.

7.3. Fiberglass mesh overlay.
Fiberglass mesh sheets are laid with a minimum overlap of 100 mm. At the junction of insulating materials of different types, it is desirable to apply a second layer of mesh with a double reinforcement overlap of at least 150 mm on each side.

7.4. Reinforced, "anti-vandal" reinforcement.
If necessary, it is possible to make reinforcement in an anti-vandal design, to a height of 2.5 m. Anti-vandal protection is a reinforcement of the reinforcing layer with an additional layer of armored or ordinary fiberglass mesh, embedded in a universal adhesive composition. Apply an adhesive composition with a thickness of no more than 2 mm to the plane, firmly press the fiberglass mesh to the plane of the heat-insulating material. Remove the adhesive composition that has come through the cells with the smooth side of the spatula. Further, without waiting for the solution to dry, apply glue and reinforce with a second layer of fiberglass mesh in accordance with paragraph 7.3.

7.5. Surface cleanliness of the reinforced layer.
The surface of the reinforced layer should not have irregularities and sagging, which would later appear in the decorative layer or make it impossible to apply it correctly. The requirements for evenness of the reinforced layer are determined primarily by the type of plaster. It is recommended that the differences over a length of one meter should not exceed the value corresponding to the maximum grain size of the plaster, + 0.5 mm.

7.6. Decorative elements.
Decorative profiles are glued onto the reinforced layer with the help of a reinforcing adhesive mixture, in a continuous layer over the entire surface. The solution is best applied with a notched trowel to the profile surface. Joints along the contour of the profile, possible mutual connections are filled with sealant (see Fig. 18).

Attention: it is necessary to comply with the requirements of the technical solutions indicated in the album!

7.7. Slope processing.
Joints between the system and another structure (adjacent to slopes, etc.) are recommended to be made through self-expanding sealing tape or using a special adjoining profile to prevent moisture from penetrating into the system (see fig. 19 and 20).

8.1. Padding.
Before applying decorative plaster, the reinforced layer is treated with a primer intended for this type of decorative plaster, for

increase adhesion and reduce the absorbency of the base. Priming is carried out after the reinforced layer has dried, not earlier than after 35 days. The primer is applied with a roller or paint brush. Decorative plaster is applied after the primer has dried in accordance with weather conditions, but not earlier than after 12 hours.

8.2. General requirements for the application of decorative plaster.
The temperature of the substrate and the ambient air must be at least +5°C, unless materials are used that allow work to be carried out at a lower temperature (drying accelerator for acrylic plaster). When applying decorative plaster, exposure to direct sunlight, wind and rain should be avoided. Under conditions that favor rapid plaster drying (temperature above +25°C, strong wind, heated substrate, etc.), all conditions (including, for example, surface area) that affect the possibility of correct work must be taken into account. Under conditions that make drying difficult (low temperatures, high relative air humidity, etc.), take into account delayed drying and therefore the possibility of rain damage for more than 8 hours.

8.3. Application of decorative plaster.
Thin-layer decorative plasters are applied on a dried, primed surface from top to bottom.

When working, the material should be applied using the so-called "wet on wet" ("live") method, i.e. The treated surface must not dry out before continuing work.

The plaster is applied with a stainless steel spatula (trowel) to a thickness equal to the grain size for a corrugated texture and 1.5 times the grain size for a granular texture. Dock the areas of application of the plaster should be before it begins to dry. The texture is created by grouting with a plastic trowel immediately after application, avoiding airing of the surface. Periodically remove excess binder that forms on the working surface of the plastic grater. Do not return excess binder back to the material bucket!

When applying plaster, make sure that the grouting on all parts of the facade surface is carried out in the same direction. At the junction of plasters of different color shades on the same surface, as well as surfaces with different structures, or at the working seam, a masking tape is glued, which is removed immediately after the decorative plaster has been grouted. After it dries, the already finished border is sealed with masking tape so that during the continuation of work it will not be damaged. Breaks in work are allowed at the border of the color surface and at the corners.

8.4. Completion of work.
Immediately after completion of work with a decorative coating, mounting and auxiliary elements are removed, and contaminated surfaces are immediately cleaned. The accelerated dismantling of scaffolding is recommended. Sealing of places of attachment of scaffolding to the wall is carried out in the process of their dismantling.

The seal is made in the following order:

1. filling the places of attachment of scaffolding to the wall with the same heat-insulating material;
2. applying a layer of adhesive composition and reinforcing it with a fiberglass mesh;
3. padding;
4. applying decorative plaster;
5. priming and painting (if necessary).

It is necessary to provide for the protection of the coating in advance in places of possible runoff of water from horizontal surfaces during rain.

Transportation and storage.

9.1. Transportation.
All elements of the insulation system are transported in industrial packages. Slabs of expanded polystyrene and mineral wool are transported under conditions that exclude their getting wet or mechanical damage or other damage.

9.2. Storage on site.
Reinforcement-adhesive mixture and plasters supplied in dry form must be stored in their production packaging in a dry room. Finished decorative plasters, primers and paints are stored in their original packaging. Protect these materials from frost and direct sunlight. Mineral wool slabs should be stored in a dry place and protected from mechanical damage. Expanded polystyrene boards should be protected from ultraviolet rays and exposure to chemical solvents. Fiberglass mesh is stored vertically in rolls, in a dry room. Protect from permanent compression and ultraviolet radiation. Dowels are best stored in their original packaging and protected from frost and UV radiation. When storing materials, the shelf life must be observed.

Operation of the insulation system and warranty period.

10.1. Exploitation.
During operation, no interference with the integrity of the insulation system by the consumer is allowed without prior consultation with the installer or system specialist. This is especially true for the implementation of penetrations, breaks that occur in the case of fixing equipment to the base through the insulation system.

10.2. Guarantee period.
The service life of the system is at least 10 years.

10.3. Care of the insulated facade.
The facade, insulated with the help of the system, does not require special care. If the facade is dirty, it can be cleaned with hot (max 60°C) water under pressure, using liquid cleaning agents, mechanical cleaning is not desirable. Cleaning of surfaces should be carried out under favorable weather conditions, at a minimum temperature of the ambient air and the surface at a temperature not lower than +5°C. The pressure and temperature of the water must be regulated, it is necessary to check the effect on the coating in an inconspicuous place, in a small area, in order to avoid damage.

10.4. Care with a protective coating.
If it is necessary to treat with a protective coating to increase the resistance of the decorative layer to atmospheric conditions, it is recommended to apply a protective coating at least once every 15-25 years. Protective coatings are applied in accordance with the conditions specified in the passports of this material, on a previously cleaned and degreased substrate. The structure of the protective composition must correspond to the structure of the main finishing layer. For the use of other coatings, it is necessary to consult with a technician from Saint-Gobain Weber Rus.

The coating can also be applied if it is necessary to change the color of the object under the same conditions as for the protective coating.

10.5. Elimination of damage.
If it is necessary to eliminate mechanical damage to the top layer or the entire thermal insulation system, it is necessary to act taking into account the extent of the damage. First of all, the upper decorative layer is removed up to the reinforced one, with damage overlapping by at least 15 cm. Next, the reinforced layer is removed with damage overlapping by at least 10 cm. After that, in case of damage, the damaged insulation is removed for the entire thickness. The resulting hole is sealed with a piece of insulation of the same type, the required amount of reinforcement-adhesive mixture solution is applied to the reverse side of the piece. Particular attention must be paid to the most accurate filling of the hole with insulation. Slots larger than 2 mm should be filled with the same insulating material. Gaps between boards (expanded polystyrene, extruded polystyrene) up to 4 mm wide can be filled with mounting foam with a low expansion coefficient. After that, a layer of mortar with fiberglass mesh reinforcement is applied to the repair site. After drying, a primer layer and a new layer of decorative coating are applied. When performing individual operations, follow the recommendations given in this description.

More detailed information and the specifics of the installation of individual components of the thermal insulation system can be found in the "Album of technical solutions", for mass use, code STF V.T 01.07 and STF V.T 0107 "The system of external thermal insulation of building facades weber.therm (weber.therm)"