Weber plaster facade. Decorative plasters. Operation of the insulation system and warranty period

Installation of facade insulation system “WEBER.THERM”

The weber.therm wet-type external insulation system has three main layers:

thermal insulation layer of a slab made of thermal insulation material with a low thermal conductivity coefficient (for example, mineral wool slabs or expanded polystyrene slabs), which is attached to the wall using a special adhesive composition and secured with dowels. This layer is necessary to ensure insulation of the building envelope. Its thickness is determined by thermal engineering calculations, and the type of material is determined by fire safety requirements.
the reinforced layer consists of a special adhesive composition, reinforced with alkali-resistant mesh; it ensures adhesion of the protective and decorative layer to the surface of the insulating board.
protective and decorative layer of primer and decorative plaster (mineral or polymer) or special “breathing” facade paints. This layer protects thermal insulation material from external adverse influences (precipitation, ultraviolet radiation, etc.), and also allows you to give an attractive appearance facade, providing high expressiveness of the building.

External thermal insulation system for 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 system installation external thermal insulation facades of buildings Weber.Therm (Weber.Therm)

Preparing the object for installation

1.1. End of wet processes.
At the facility to be insulated, it is recommended to complete all processes that give the walls increased technological humidity, for example, plastering, coating, etc.

1.2. Static defects.
The insulation project for buildings with static defects should be agreed upon with a specialist in the insulation system and the designer. All cracks and gaps in the structure must be considered taking into account their possible impact on the operation of the thermal insulation system.

1.3. Related work.
Any related work on the façade of the facility, for example, covering vaults and openings, mounting boxes, lightning rod holders, consoles and brackets, for securing additional structures on the façade, etc., must be carried out in accordance with the recommendations of a specialist in the insulation system so that There was no damage to the system during the work mechanical damage, system leakage, etc.

1.4. Additional requirements.
In places where there are differences in the thickness of the structure, the thickness of the thermal insulation material must also be changed in accordance with the insulation project. All omissions, differences 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.
Questions about heating a building, for example, heating only part of the building, insulation insulating material uneven thickness, insulating materials of different types on the same area, etc., should be decided already at the design stage, according to the album of technical solutions.

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

Preparation of the structure.

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 done at lower temperatures (drying accelerator for acrylic plaster, Weber.Therm S100 Winter reinforcement-adhesive mixture for working at temperatures up to 10°C ). When gluing the insulation, avoid wind and rain. When applying the finishing decorative layer, avoid exposure to direct sunlight, wind and rain. Under conditions conducive to quick drying plaster (temperature above +25°C, strong wind, heated base, etc.), it is necessary to take into account all conditions (including, for example, surface area) that affect the ability to carry out the work correctly. Under conditions that make drying difficult (low temperatures, high relative humidity air, etc.), slow drying and therefore the possibility of damage from rain over 8 hours must be taken into account.

2.2. Humidity of the structure.
All defects that increase the risk of moisture penetration into the insulation system should be eliminated. The humidity of the base should not significantly exceed atmospheric humidity. If the humidity of the base is increased before carrying out insulation work, it should be dried, and efflorescence of the plaster should be eliminated.

2.3. Affected surfaces.
Surfaces affected by mold, etc., should be thoroughly cleaned and then treated with an antiseptic to prevent reoccurrence.

2.4. Cleanliness of the base.
Before starting work, the base should be cleaned of dirt, grease and solution residues. Coatings and plasters with weak or insufficient adhesion to the base should be removed. Insulating material can be glued to the repaired base only after the repair materials have dried.

2.5. Foundation strength.
The recommended average strength of the base is 200 kPa, the lowest permissible strength is at least 80 kPa.

2.6. Moisture absorption capacity of the base.
If the moisture-absorbing capacity of the base is increased, it must be treated with an appropriate primer.

2.7. Levelness 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, you can 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 solution layer when gluing insulating materials should not exceed 30 mm.

System installation.

3.1 Installation with plinth profile.
The width of the plinth profile must correspond to 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 (compensators 3 or 5 mm thick). To fasten the profiles, you must use plastic connectors (see Fig. 1). The gap between the profile and the gasket should be sealed with an adhesive solution.

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

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

4.1. General requirements.
Insulating boards are glued from bottom to top, the long side of the board is located horizontally. Only in cases where this is justified, can insulating material be glued, 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 should be made individually, 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 reinforcement-adhesive mixture.
Pour 5.05.5 liters of water into a container and add 25 kg of glue (bag). In this case, the mixture should be added to water, and not vice versa. The glue must be mixed in clean water at a temperature of approximately 20°C. The more porous the base and the higher the temperature of the environment, the more water is required for mixing. It is necessary to mix the glue mechanically using a drill with a mixer attachment at medium speed (400-600 rpm) until a homogeneous mixture without lumps is achieved, then leave for 5 minutes to “ripen”, then mix again. The solution prepared for use should be used within 3.54 hours at 20°C.

4.3. Application of weber.therm S100 reinforcement-adhesive mixture.
The adhesive solution is applied manually (see Fig. 5) or machine (see Fig. 6) always around the perimeter and in the center of the slab (in an arbitrary line or at least three points). The gluing surface must be at least 40% of the entire area of the insulating board. If the base is level, you can apply the solution to the entire surface of the slab using a notched trowel. When gluing fireproof cuts from a mineral wool board, the solution should be applied to the entire surface. (See Fig. 7). The surface of the mineral wool cut must be primed by rubbing the solution into the surface using a spatula for better adhesion.


Rice. 5		Rice. 6		Rice. 7		Rice. 8

4.4. Basic rules for gluing thermal insulation material.
When applied to a slab, the solution should not get onto the side edge of the slab. Excess solution must be removed. When gluing the slab to the wall; The formation of cross-shaped joints of slabs and continuous vertical cracks should not be allowed, especially at the corners (see Fig. 8). The slabs of the first row must be installed on the base profile close to each other and not protrude beyond its boundaries. When installing in openings, it is recommended to glue the slabs to the surface covering the opening. Then the slabs are glued along the slope. After the glue has dried, the slabs are cut flush with inner surface(see fig. 9). When gluing slabs at the corners of openings, one should not allow continuous horizontal or vertical gaps; the overhanging part of the slab is cut off (see Fig. 10). The boards are glued end to end. Gaps larger than 2 mm should be filled with the same thermal insulation material. Gaps between slabs (expanded polystyrene) up to 4 mm wide can be filled with insulating foam with a low expansion coefficient.

Use solid slabs first. The use of off-cut slabs is only possible if they are wider than 150 mm and are not installed at corners or at the edge of the system.

4.5. Vertical gaps in cracks and unevenness of the base.
Joints between slabs should not be located in areas of foundation cracks, at the boundary of two dissimilar base materials (see Fig. 11) and where the thickness of the slab changes due to differences in thickness in the structure (see Fig. 12). The overlap of such places must be at least 100 mm.

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

5.2. Time and method of installation.
The dowels are installed after the glue has dried so that there is no displacement of the insulating material and disruption of its uniformity, usually within 24 hours after gluing. The dowel should fit tightly, not move, its plate is buried approximately 23 mm into the surface of the slab and should not protrude above the surface. Use dowels of the appropriate length depending on the thickness of the insulating material. When installing dowels, there should be no damage to the insulating material.

5.3. Mounting depth and non-standard bases.
A universal dowel with a diameter of 8 mm must be fixed at least 50 mm into the solid load-bearing material. Plaster 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 length of attachment to a stable, solid base (not counting 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 spacer zone and with a length of attachment to a stable, solid base (not counting plaster) of at least 55 mm. Dowels must be screwed.

For a foam concrete base, dowels with a diameter of 8 mm with a long spacer zone and a length of attachment to a stable, solid base (not counting plaster) of at least 75 mm are used.

5.4. Number of dowels and doweling scheme.

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

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).

Fig.13

Preparation for applying the reinforced layer.

6.1. Leveling the insulating material.
To facilitate the application of the reinforced layer, remove any possible irregularities with sandpaper on a smoothing board. bigger size or a special grater.

In case of contamination of the surface of the boards, due to the long delay between gluing and further processing, the entire surface should be sanded.

The maximum permissible value of unevenness of the thermal insulation layer is 5 mm per length of 1 m.

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

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

6.3. Expansion joints.
If there are expansion joints, a special profile with a mesh is used, which is embedded in the previously applied layer of adhesive solution (see Fig. 16).

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

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

The mesh should not appear on the surface after smoothing. If necessary, a second layer of reinforcement-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 1/21/3 the thickness of the base layer, closer to the outer layer. Minimum Coverage fiberglass mesh solution must be at least 1 mm. When using profiles with a drip edge (base profiles, corner profiles with a drip edge), a reinforcement layer with fiberglass mesh should be laid to the bottom edge of the profile.

7.3. Overlapping fiberglass mesh sheets.
Fiberglass mesh sheets are laid with a minimum overlap of 100 mm. At the junction of insulating materials different types It is advisable to apply a second layer of mesh with an overlap of double reinforcement of at least 150 mm on each side.

7.4. Reinforced, “vandal-proof” reinforcement.
If necessary, reinforcement can be made in an anti-vandal design, to a height of 2.5 m. Anti-vandal protection consists of strengthening the reinforcing layer with an additional layer of armored or ordinary fiberglass mesh, embedded in a universal adhesive composition. Apply an adhesive composition no more than 2 mm thick to the plane, press the fiberglass mesh tightly to the plane of the heat-insulating material. Remove any adhesive that has come through the cells using the smooth side of a spatula. Next, without waiting for the solution to dry, apply glue and reinforce with a second layer of fiberglass mesh according to paragraph 7.3.

7.5. Cleanliness of the surface of the reinforced layer.
The surface of the reinforced layer should not have irregularities and sagging, which would appear later in decorative layer or would make it impossible to apply it correctly. The requirements for the evenness of the reinforced layer are determined primarily by the type of plaster. It is recommended that differences over a length of one meter do 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 using a reinforcement adhesive mixture in a continuous layer over the entire surface. The solution is best applied to the surface of the profile with a notched trowel. 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 specified in the album!

7.7. Slope processing.
It is recommended to make joints between the system and another structure (adjacent to slopes, etc.) through a self-expanding sealing tape or use a special adjacent profile to prevent moisture from penetrating into the system (see Figures 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

increasing adhesion and reducing the absorbency of the base. Priming is carried out after the reinforced layer has dried, no earlier than 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 12 hours.

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

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

When working, the material should be applied using the so-called “wet on wet” (“live on wet”) method, i.e. The treated surface should 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 grooved texture and 1.5 times the grain size for a granular texture. Areas of plaster application should be joined before it begins to dry. The texture is created by troweling with a plastic trowel immediately after application, preventing the surface from weathering. Periodically remove excess binder that forms on the working surface of the plastic float. Do not return excess binder back to the material bucket!

When applying plaster, you should ensure that grouting on all areas of the façade surface is done 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, masking tape is glued, which is removed immediately after grouting the decorative plaster. After it has dried, the finished border is sealed with masking tape so that it is not damaged during the continuation of work. Breaks in work are allowed at the border of the color surface and at the corners.

8.4. Completion of work.
Immediately after finishing work with the decorative coating, the mounting and auxiliary elements, and contaminated surfaces are immediately cleaned. Accelerated dismantling of scaffolding is recommended. The places where the scaffolding is attached to the wall are sealed during the process of dismantling it.

Sealing is done in the following order:

filling the places where the scaffolding is attached to the wall with the same heat-insulating material;
applying a layer of adhesive and reinforcing it with fiberglass mesh;
padding;
applying decorative plaster;
priming and painting (if necessary).

Protection of the coating in areas where water may flow from the surface should be provided in advance. horizontal surfaces during the rain.

Transportation and storage.

9.1. Transportation.
All elements of the insulation system are transported in industrial packaging. Expanded polystyrene boards and mineral wool transported under conditions that prevent them from getting wet or mechanically damaged or otherwise damaged.

9.2. On-site storage.
Reinforcement-adhesive mixtures and plasters supplied dry must be stored in their original packaging in a dry place. Decorative plasters, primers and paints supplied in finished form, are stored in production packaging. These materials must be protected 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. The fiberglass mesh is stored vertically in a roller, in a dry room. Protect from compression leading to permanent deformation and ultraviolet radiation. Dowels are best stored in their original packaging; they should be protected from frost and ultraviolet radiation. When storing materials, the shelf life must be observed.

Operation of the insulation system and warranty period.

10.1. Exploitation.
During operation, any interference with the integrity of the insulation system by the consumer is not allowed without prior consultation with the installation contractor or a system specialist. This is especially true for penetrations and breaks that occur when equipment is attached to the base through an insulation system.

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

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

10.4. Care with a protective coating.
If treatment with a protective coating is necessary 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 given in the data sheets 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. To use other coatings, you must consult with a technical employee of 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. Repairing damage.
If it is necessary to eliminate damage to the top layer or the entire thermal insulation system that is mechanical in nature, you should act taking into account the size of the damage. First of all, the top decorative layer is removed, down to the reinforced one, covering the damage by at least 15 cm. Next, the reinforced layer is removed, covering the damage by at least 10 cm. After this, in case of damage, the entire thickness of the damaged insulation is removed. The resulting hole is sealed with a piece of insulation of the same type, and applied to the back side of the piece. required amount solution of reinforcement-adhesive mixture. Special attention It is necessary to pay attention to filling the hole with insulation as accurately as possible. Gaps larger than 2 mm should be filled with the same insulating material. Gaps between boards (expanded polystyrene, extruded polystyrene foam) up to 4 mm wide can be filled mounting foam with low expansion coefficient. After this, a layer of mortar reinforced with fiberglass mesh is applied to the repair site. After drying, apply a layer of primer and a new coat. decorative covering. When performing individual operations, follow the recommendations given in this description.

More detailed information and specifics of installation of individual components 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 "System for external thermal insulation of building facades weber.therm (weber.therm)"

Purpose

Heat/sound insulation of old and new buildings and structures.

Protection and decorative finishing of external walls of buildings.

Saving energy for heating and air conditioning of the building.

Power reduction heating equipment and air conditioning systems, therefore extending the service life of the equipment.

Reducing the likelihood of mold occurring inside buildings and structures on the surface of walls.

Reconstruction and rehabilitation of damaged facades.

System elements

Glue mixture weber.therm MW

The mixture is intended for installation of thermal insulation slabs made of mineral wool on the following substrates: concrete, brickwork made of ceramic and silicate brick, surfaces plastered with cement, cement-lime plasters, surfaces made of cellular concrete. The layer thickness when installing thermal insulation is 5-20 mm.

Thermal insulation boards ISOVER Facade

The system uses non-flammable mineral wool ISOVER slabs Facade made of stone fiber with a tensile strength of layers of at least 15 kPa, compressive strength of at least 45 kPa, λ a = 0.041, λ b = 0.042, slab thickness from 30 to 200 mm.

Reinforcement-adhesive mixture weber.therm S100

The mixture is intended for 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. Also intended for creating a base reinforced plaster layer on the surface of thermal insulation boards. At a temperature environment 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.

Facade reinforcing fiberglass mesh

Characteristics of facade fiberglass mesh with alkali-resistant impregnation

Facade dowel

For additional mechanical fixation of thermal insulation boards, facade dowels having the following characteristics:

Primer weber.prim Uni

Designed for tinting, strengthening and removing dust from the base, forms a uniformly absorbent surface before applying decorative plasters, and facilitates their application.

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 painting).

For finishing decorative elements, window and doorways used: weber.pas modelfino, weber.pas decofino.

Types of structures: granular (“fur coat”), grooved (“bark beetle”). Colors: standard, according to the Weber color palette. Tinting in non-standard colors is possible. The light reflection coefficient must be at least 25–30%. Facade paints

The following paints are used to paint weber.min:

▫ silicate – weber.ton silicate,

▫ silicone – weber.ton micro V.

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

Conditions of work

The base must be immovable, stable, load-bearing, dry and level.

Remove dirt, dust and foreign particles, concrete surfaces clean from separating materials and, if necessary, treat with water under pressure or steam.

All wet processes (flooring, plastering, etc.) inside the building must be completed.

Install horizontal barriers, such as: window sills, roof end pieces, parapet ends, etc.

The expansion joints of the building body must be preserved during the installation of the entire weber.therm multilayer thermal insulation system. Make vertical expansion joints every 24 m.

Preparatory work

Remove any remaining concrete and mortar.

Irregularities up to 10 mm can be leveled out when installing thermal insulation.

Irregularities larger than 10 mm in size must first be leveled using cement-lime plaster weber.vetonit 414 or cement plaster weber.stuk cement. Before installing the thermal insulation boards, allow the leveling layer to sit for at least 1 week.

Carefully check the old plaster for the presence of voids and remove any voids or peelings. Level the corresponding areas with suitable weber.vetonit 414 or weber.stuk cement plaster (after priming or moistening the surface). The surface with a durable, firmly adhering paint and varnish coating or with polymer plaster must be dry and clean. In the presence of polymer plaster or paintwork It is recommended to check them bearing capacity or resistance to saponification.

Start of system installation

Installation with plinth profile

Fix the base profile corresponding to the thickness of the heat-insulating board to the wall at the rate of 3 dowels per linear meter, join the profiles together using special connecting parts. Additionally, lay the profile along its entire length on adhesive putty or lay pre-compressed tape to seal the seams (especially on uneven bases) to eliminate gaps between the profile and the wall, i.e. increase the heat-shielding properties of the system.

Installation without plinth profile

Using an adhesive mixture (weber.therm MW, weber.therm S100), attach the corner profile with mesh to the wall, and later glue the thermal insulation boards to it. Install a corner with a mesh or a drip profile on the heat-insulating board.

Installation of thermal insulation boards

Store the slabs, protecting them from moisture and sunlight.

Wet or damaged slabs cannot be installed. Prepare the adhesive mixture according to the instructions on the back of the bag. Prime the areas of the mineral wool board where the glue will be applied. thin layer adhesive solution for stripping.

Apply the adhesive solution using the “side-flat” method (approx. 5 cm wide) around the perimeter of the heat-insulating slab and at several points in the center of the slab (at least three points measuring approximately 15 cm) so that the contact surface is at least 40%, taking into account unevenness base and thickness of the adhesive layer (Fig. 1).

If the base is fairly level, apply the adhesive solution to the surface of the insulating board using a spatula with a 10 mm tooth or to the base. No later than 10 minutes after applying the adhesive mortar, install the thermal insulation boards in the design position (Fig. 2-3).

Thermal insulation slabs should be installed from bottom to top, close to each other and tied to adjacent slabs (Fig. 4).

Under no circumstances should the adhesive solution get into the seams between the insulating boards. Only whole slabs can be mounted. Fitting pieces > 15 cm of the same insulating material may only be used in the row area and never on the edges. At the corners of the building, only whole and half insulation boards can be laid using the corner ligation method (Fig. 5).

After installation of thermal insulation, T-shaped joints should not form at the corners of window and door openings. The slabs at the corners of the openings must be cut from a single piece of slab and have a so-called boot profile (Fig. 6).

To avoid the formation of thermal bridges, if possible, free the slab joints from mortar. Even if the work is carried out accurately, it is not always possible to avoid defects and seams, which, however, must be covered with the same insulating material (Fig. 7).

Dowel mounting

After the adhesive solution has dried for at least 3 days, additionally fix the thermal insulation using façade dowels. The choice of dowels, their number and arrangement depend on the type of base, the height of the building and the location of thermal insulation (see Album of technical solutions).

After installing the dowels, check whether they are securely seated. Replace damaged or loose dowels.

Additional items

All corners are further strengthened using PVC corners with fiberglass mesh, recessing them into the previously applied adhesive solution (Fig. 8–10). Before applying the base plaster layer, in order to avoid cracking of corners in the area of window sills, window lintels and other openings in the walls, additionally reinforce them with corner strips of fiberglass mesh (min. 20x30 cm).

It is recommended to connect the system to window and door frames using special self-adhesive profiles (Fig. 11).

Creating a base plaster layer

Protect glued thermal insulation boards from exposure high humidity(especially during long breaks in work) and direct sunlight.

Prepare the mortar for the base plaster layer according to the instructions on the bag.

Before creating a base reinforced plaster layer on their surface, mineral wool thermal insulation boards should be primed with a thin layer of peel-off adhesive mortar.

Apply a reinforcing adhesive solution to the surface of the heat-insulating board using a notched trowel with a tooth size of 10 cm (Fig. 12).

Apply façade fiberglass mesh (for example, R131) to the resulting layer with a minimum overlap of 10 cm and, lightly pressing it into the adhesive solution, smooth out the emerging adhesive with the smooth side of the spatula (Fig. 13). The mesh should be located in the upper third of the adhesive solution and covered with it by at least 1 mm, in the place where the meshes overlap - by at least 0.5 mm.

Creating a decorative protective layer

Before applying protective and decorative plaster, the surface must dry completely (at least 3–5 days, depending on weather conditions).

12–24 hours before applying the plaster, coat the surface generously once with weber.prim Uni tinting primer.

Apply decorative protective plaster in a grain size layer and immediately rub in a circular motion (Fig. 14). Always grout with the same trowels “wet”, without waiting for the surface to weather.

WEBER TERM - facade thermal insulation system with a thin plaster layer

The company "Stabelon Engineering" provides full provision of facilities with a wet-type facade thermal insulation system.

Our services:

Supply of materials;
Systematic supply of facilities with materials for insulating facades;
Consultations in the selection of facade thermal insulation systems;
Supporting the facility at the stage of installation of the facade thermal insulation system;
Technical support;
Training contractors in installation technologies for façade insulation systems.

Weber wet façade system

Facade insulation systems are an important stage in the construction process, on which the durability of the building and the creation of a comfortable microclimate depend. various types residential and industrial facilities. One of the most efficient systems For facade insulation, the “wet facade” system is recognized. Insulation of the facade using this system is carried out in strict sequence.

Three Weber façade insulation systems

Weber offers three types of “wet facade” systems, the difference between which lies in the basis of the insulation used:

Weber.therm is a “wet facade” system based on polystyrene foam insulation. It is used in the construction of low-rise and private buildings.

Weber.therm min is a façade insulation system using basalt mineral wool. Non-flammable system for various purposes. It is used in the construction of residential and industrial buildings.

Weber.therm comfort - insulation based on glass fiber mineral wool is used. Non-flammable facade insulation system for various purposes: from residential to industrial facilities. Fiberglass insulation is lighter in weight compared to basalt insulation, which is more convenient to use. When installing an insulation system, it reduces technological time. The overall load on the façade is also reduced.

The main advantages of the Weber wet façade system:

Prevention of freezing of walls and protection from temperature deformations;
Increasing the service life of the building;
Creating a comfortable temperature regime object;
Protection against moisture condensation;
Improved sound insulation system;
Beautiful exterior decoration.

The company "Stabelon Engineering" offers a full range of services for the supply of facade insulation systems. Volume and cost calculations are made individually at your request. All installation work are carried out under the control of the system holder, in the shortest possible time, in compliance with technology, by accredited contractors.

Weber facade materials. Vetonit, among professional Russian builders, is highly valued. These high-quality and high-tech materials meet all the requirements of 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 optimal solutions for more than a hundred years.

Systems facade insulation, using plasters, depending on the thickness of the layer are divided into two types. 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 Thin-layer types of plasters are used. It is precisely these multicomponent mixtures that Weber offers. They can also be divided into two groups: facade insulation systems and decorative plasters. Weber facade insulation systems include a range of mixtures designed for bonding 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 reinforcement-adhesive mixture Weber.therm S 100, which solves two problems at once. It can be used both for gluing thermal insulation boards made on the basis of polystyrene foam, polyurethane foam, stone or fiberglass, and for creating a base plaster layer on the outer surface of the above insulation materials.

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

Weber.therm S 100 reinforcement-adhesive mixture is suitable for a wide range of substrates - brick, concrete, cellular blocks of foam concrete and aerated concrete, for substrates covered with cement and cement-lime plaster. It is suitable for new construction and renovation of buildings. In case of possible frosts, the Weber.therm S 100 winter option is available. This is a huge plus of this system, distinguishing it from analogues from other manufacturers! The Weber.therm S 100 winter system allows you to carry out work on gluing insulation, reinforcing and leveling the facade from early spring to late autumn (down to -10°C). And seasonality for builders (expansion of time limits) is the most important factor when choosing materials. Thermal insulation is glued by applying the solution along the entire perimeter of the slab and at least three internal points, with further fixation to the wall. The solution consumption is about 6 kg/m2. Base plaster layer create no earlier than 24 hours after installation, with a notched trowel, 10-12 mm thick. Then the 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 Weber plaster. 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 over galvanized metal mesh, layer thickness 8-30 mm; as well as for creating a base leveling layer in facade insulation systems with flexible connections 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 using mortar pumps.

Weber.stuk cement cement plaster is elastic, frost-resistant (more than 75 cycles), and not subject to shrinkage. Can be used both outside and inside buildings. It is intended for plastering monolithic concrete 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 interior walls and ceilings made of concrete, reinforced concrete, brick, cellular blocks, as well as swimming pool bowls before installation ceramic tiles, before painting or wallpapering. In case of possible frosts, use the Weber.stuk cement winter mixture.

Decorative plasters

Now let's look at decorative plasters. All of them are used at positive temperatures in the range from 5 to 30°C. For creating smooth surface 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 plaster has high vapor permeability, frost resistance, resistance to exhaust gases and alkalis. The plaster is hydrophobic, so the façade can be washed if necessary. 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 PU foam.

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 available 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 finishing coating in systems with polystyrene foam insulation. It should be noted that “shuba” 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.

Weber.pas extraClean silicate-silicone decorative plaster also has a “fur coat” grain structure, with a grain size from 1.5 mm to 3 mm. It has high vapor permeability and a self-cleaning effect, and is 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 released in different options in grain size and structure (“fur coat”, bark beetle) and is highly resistant to fungus and mold. The plaster is vapor-permeable, has a low coefficient of contamination, and does not contain biocidal preservatives. However, there are technological limitations in using Weber.pas topdry: avoid working in rainy weather and in direct sunlight.

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

Original façade solutions are obtained by 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 allow it to be used as a finishing coating for finishing plinths and other concrete, reinforced concrete surfaces, aligned cement plasters or putties, as well as on 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 non-flammability. True, it is only released white, with a grain size from 1.0 mm to 3.0 mm (fur coat) and 2.0 mm bark beetle), therefore requiring subsequent priming (Weber.prim S10) and painting Weber.ton micro. The technological cycle for 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 done wisely, taking into account a number of circumstances. By contacting Slavdom, you will receive answers to all questions and the most comprehensive advice.