How to plaster the seams between the csp slabs. Csp panels for exterior decoration of the house

Continuing the cycle of articles DSP applications boards in construction, we present recommendations from manufacturers for the processing of DSP (cutting, drilling, milling, grinding), fixing the DSP (using nails and screws, placing and making seams) and surface finishing (painting, plaster).

Recall cement-bonded particle boards (DSP)- building material with unique properties used in the "dry installation" technology. DSPs belong to the generation of modern composite building materials with properties that combine the strength and durability of cement with the flexibility and ease of processing wood. Universal specifications DSPs have already been fully appreciated all over the world.

Modern slabs are made by pressing a molded technological mixture consisting of coniferous wood chips (24%), Portland cement (65%), minerals (2.5%) and water (8.5%).

Variants of application of CBPB plates for decoration of facades of buildings of any type are described.

Today on the Internet there is a huge number of tips and recommendations for working with DSP plates, but many of them do not correspond to reality. In order to figure out how to work correctly with DSP boards, we turned to the recommendations of the manufacturers.

DSP PROCESSING.

Attention! To obtain a high-quality processed surface of cement-bonded particle boards, a cutting tool made of hard alloys is used.

Cutting.
When cutting (cutting, trimming) cement-bonded particle boards on site, manual circular saws with a disc diameter of 250 mm and the number of teeth no more than 40. The rotation speed of the disc is 3000-4000 rpm.

To obtain a straight edge, the cutting wheel should protrude from the bottom of the plate as far as possible. Slabs are cut from the reverse side in order to preserve the front side from damage.

Drilling holes.
For drilling holes in cement-bonded particleboards, manual electric drills with electronic speed control are used. Twist drills made of HSS cutting material can be used to drill single holes; for continuous operation, carbide drills are recommended.

Milling.
For milling cement-bonded particleboards, manual electric milling cutters with end mills equipped with hard alloy solders are used. Rotation frequency cutting tool ranging from 25-35 m / s.

Grinding.
Grinding of cement-bonded particle boards at the JLLC "TsSP BZS" enterprise is not performed. In practice, when installing the slabs, local irregularities may appear at the joints, which should be removed by grinding. For this purpose, manual vibrating, eccentric (orbital) or belt grinders... The grain size of the grinding material should be in the range of 40-80 units.

Attention! When grinding, the upper finely dispersed covering layer is disturbed, which leads to the opening of the slab structure, an increase in water absorption, and a deterioration in physical and mechanical properties. After finishing the treatment, it is necessary to apply a primer to the slabs to stabilize the surface and reduce hygroscopicity.

When cutting, drilling, milling and grinding cement-bonded particleboards, a large amount of dust is emitted; therefore, it is necessary to use dust extraction devices and aspiration means.

FASTENING DSP.

Attention! All connecting elements and metal elements supporting structures must have an anti-corrosion coating. Before fixing cement-bonded particle boards, it is necessary to make sure that the frame elements are vertical and horizontal, and that they are in the same plane. All planes and edges of cement-bonded particle boards must be primed before fastening. Particular attention should be paid to priming the edges.

Cement particle boards are attached to supporting structures using self-tapping screws and rivets (when attached to a metal profile).

In order to provide technologically correct attachment cement particle boards, the main requirement is to observe the spacing between the fasteners and the distances between them and the edges of the boards, according to the following diagram and table.

Holes for self-tapping screws and rivets are drilled into the DSP with a diameter of 1.2 times their own diameter. To deepen the heads of screws and rivets, the holes are pre-countersinked to a depth exceeding the height of the heads by 1.5-2 mm.

For fixing the DSP without preliminary drilling of holes, you can use special self-tapping screws with a reinforced point and a countersunk head equipped with blades to form a recess (countersink) for its dimensions.

Attention! The size of screws and self-tapping screws is chosen on the condition that the length of the restrained part was at least two thicknesses of the DSP board and at least 10 screw diameters. When tightening screws and self-tapping screws, do not use excessive force to avoid cracking the board.

The table shows minimum dimensions screws and self-tapping screws used to attach cement-bonded particle boards to elements load-bearing frames depending on its thickness and diameter of the dowel of the hardware product.

Attention! When using cement-bonded particle boards for facing walls, partitions and ceilings, it is necessary to lay them with a seam, the width of which is 6-8 mm for external use and 3-4 mm for internal use. The seam can be closed with an outer strip, put in a wooden, tin, metal or polymer profile, or covered with a plastic putty based on acrylic resins or polyurethanes.

SURFACE FINISH DSP.

Cement particle boards, like any particle board, are subject to slight expansion and shrinkage under the influence of temperature and humidity changes.

At the joints of the slabs, a thermal expansion gap must be left to allow linear expansion of the slab. In order to prevent the formation of cracks in the joint mixture, the width of the closed expansion joint should be 8 mm for external use and 4 mm for internal use.

The simplest is the uncovered expansion joint.

Attention! Cement particle boards are supplied from the factory with a moisture content of 9 ± 3%. Intermediate storage before processing, as well as installation, must be carried out in dry conditions. Failure to comply with this requirement may cause the boards to absorb an unacceptably high amount of moisture, which can lead to damage in closed seams and / or in places of fastenings, as well as damage paintwork the surface of the slabs applied at the work site.

The designs of the end faces of cement-bonded particle boards and seams are varied. The most common systems are presented below. When using cement-bonded particle boards outside buildings and for wall cladding, it is not recommended to grind the surface of the boards (unless the grinded surface is provided for by special requirements). Sanded boards, in which wood particles are directly visible on the surface, are usually used for flooring only (due to stringent thickness requirements), as well as in special cases.

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Open expansion joint.

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Open expansion joint with beveled at the edges of the DSP.

Closed expansion joint.

The use of a strip strip.

Attention! Regardless of the methods used for surface finishing of cement-bonded particle boards, a mandatory priming of their planes and edges is required. The reverse sides of the slabs are primed prior to their installation.

Painting of cement-bonded particle boards.
The simplest and most common method for surface finishing of CBPB is painting with the formation of expansion joints between the boards (open seams).

In this case, before applying paint to the surface of the cement-bonded particle board, you must:
- deepen all screws 1-2 mm into the plate;
- clean the surface of the stove from dirt and dust. If there are grease or oil stains, it is necessary to degrease them;
- when wet cleaning, it is necessary to dry the plate;
- fill in all recesses and chips with a facade putty;
- after complete drying of the putty, sand the filled places;
- clean and prime the front side and edges of the cement-bonded particle board (stabilizes the surface, reduces hygroscopicity, unifies the base);
- paint the slab.

Attention! Paints and varnishes must contain pigments that are stable in alkaline environment... Unstable pigments can lead to color changes.

Filling expansion joints with elastic putties.
The expansion joints are filled with elastic putties based on acrylic resins and polyurethanes. Silicone putties are not used for cement-bonded particleboards.

The main rule for the functioning of the expansion joint is the exclusion of a three-sided fit in the joint, which is the reason for the uneven load of the elastic filler, followed by its separation from the edges of the cement-particle boards.

For this, liners made of polyethylene tape or a cord made of foamed polyethylene are used, which makes it possible to obtain the adhesion of the elastic filler only to the opposite edges of the cement-bonded particle boards and to evenly distribute the load on the filler.

Closed expansion joint made of elastic putty with polyethylene tape insert.

Closed expansion joint made of elastic putty with expanded polyethylene cord insert.

Plastering works.
Plastering work on cement-bonded particleboards is carried out with an open seam and a seam closed with a finishing system or flat strips.

Plastering works are carried out in cases when the surface of the slabs should look monolithic and smooth, without visible expansion joints. As you know, with a change in relative humidity, the elongation or shrinkage of cement-bonded particle boards occurs. To ensure that these changes do not have an impact on appearance plastered surface and did not lead to the formation of cavity (hair) cracks, it is necessary:
- attach previously primed slabs to the structure;
- fill the formed expansion joints with elastic putty;
- to make a flat putty of the working surface;
- press an alkali-resistant fiberglass mesh into the formed coating layer;
- Apply a leveling layer of putty;
- make the final (finishing) surface finish.

Facing of cement-bonded particle boards with ceramic tiles or decorative stone.
When facing the working surfaces of cement-bonded particle boards with ceramic tiles or decorative stone, elastic mastics must be used to fix them and fill expansion joints.

It is recommended to apply adhesive mastic to the entire work surface plates. It is recommended to pull the expansion joints between the tiles, ensuring that they coincide with the joints of the ceramic tiles and decorative stone... Otherwise ceramic facing tiles or a decorative stone element overlapping adjacent slabs should be glued to only one of the slabs, leaving the overlap without adhesive mastic.

In rooms with insufficient ventilation for structures with constant water load (bath, shower), pre-primed cement particle board followed by applying a waterproofing putty to them.

The simplest surface finish of CBPB is painting with the formation of open seams (gaps) between the boards.

Facade painting of CBPB TAMAK. System with visible expansion joints

Facade painting of CBPB TAMAK. Closed expansion joint system

PLASTER

Facade plaster TsSP TAMAK. System with visible expansion joints or seams covered with decorative strips

Diagram of an open expansion joint device to compensate for linear changes caused by temperature and humidity influences.

Facade plaster TsSP TAMAK. Closed expansion joint system

Device diagram closed seam enlargement

NOTE

When carrying out finishing work, it is necessary to strictly follow the instructions for use of the material systems given by the manufacturer.

The least demanding on the quality of the finished surface are texture paints, therefore, they are recommended for self-painting of facades with a roller. It is recommended to apply non-textured (smooth) paints only on specially prepared surfaces with recessed and putty screws.

For fastening the CBPB TAMAK to the frames on the facades, it is recommended to use galvanized or anodized self-tapping screws(hereinafter self-tapping screws), because black (phosphated) ones can corrode under the influence of atmospheric moisture, while they lose their strength properties, and rust can show through the topcoat.

Surface preparation of CBPB TAMAK for facade finishing works

Before painting it is necessary to prepare the DSP surface as follows.

PAINTING
The simplest surface finish of DSP is painting with the formation of seams (gaps) between the boards (see Fig. 1). The most suitable paints for this purpose are acrylic or silicone based paints. Depending on the type of paint and the wishes of the customer, paints are applied in one or several layers on the dry primed surface of the board.

1 - DSP;
2 - soil Amfiselan Tifgrunt LF KAPAROL;
3 - covering paint Silicone-EG inf3501;
4 - elastic joint filler "Bau-silicone" inf. 5501

In the future, the formed seams (gaps) between the plates can:
- remain as a design detail - in this case, it is enough to cover the edges of the plate with the paint you need
colors;
- fill with elastic mastic; - hide behind decorative metal, plastic or wooden slats.

In cases where a surface finish without seams is required, a flat putty system must be used.

PLASTER

Plastering works it is possible to carry out on boards made of DSP with or without a visible seam.

System structural plaster using the example of CAPAROL with open expansion joints

Primer Putzgrund Ambient air parameters when applying Putzgrund primer: Т = 18 ° С, W = 50%. Primer consumption - 0.28 kg / m2. Drying time -12 hours. Application is carried out using a roller with a pile length of 10 mm. Add 10% water by weight to the primer. Application time for 10 panels is 2 hours.

Textured plaster RolPutz Palazzo 25 Ambient air parameters when applying Rol Putz structural plaster: Т = 18 ° С, W = 50%. Consumption of Rol Putz plaster - 2.5 kg / m. Drying time to the extent that paint can be applied is 24 hours. The time required for the plaster to polymerize, allowing the transport Wall panels, is 72 hours. Application is carried out with a trowel, then with a roller with a pile length of 18 mm. It takes 7.5 minutes to apply a 1m layer of plaster.

Finishing coat 1 layer of Muresko plus Palazzo 25. Ambient air parameters when applying Rol Putz structural plaster: Т = 18 ° С, W = 50%. Consumption of Rol Putz plaster - 2.5 kg / m. Drying time to the point that the paint can be applied is 24 hours.

The time required for the polymerization of the plaster allowing the transport of the wall panels is 72 hours. Application is carried out with a trowel, then with a roller with a pile length of 18 mm. The coverage should be structured. It takes 7.5 minutes to apply a 1m layer of plaster.

Application of RolPutz structural plaster
Ambient air parameters when applying RolPutz structural plaster: Т = 18 ° С, W = 50%. Finishing paint consumption - 0.56 kg / m. Drying time 12 hours. Application is carried out using a roller with a pile length of 18 mm. It takes 3 minutes to apply a 1m layer of paint. For this type of work, the technology of one manufacturer should be used and its recommendations should be followed.

Surface preparation system for plastering without visible expansion joints by CAPAROL is presented below:
1 Insulating adhesive CAPATECT - DAMMKLEBER
2 Thermal insulation boards made of mineral fiber.
Facade thermal insulation boards CAPATECT -MW - Fassadem dammplatten.

3 Reinforcing layer
adhesive and putty CAPATECT -Klebe - und- Spachtelmasse.
+ glass mesh CAPATECT Gewese
4 Putz GRUNT 610.
5 Top layer of plaster.
ROLL PUTZ structural plaster.

WALLPAPER
Direct wallpapering of the working surface is carried out after fixing the primed plates and filling the expansion joints with elastic mastic.

Surface finishing of the slabs can be done using vinyl wallpaper, glass wallpaper, non-woven wallpaper. In this case, the expansion joints will be hidden.

Vinyl wallpaper is used for finishing rooms with increased aesthetic requirements and where high wear resistance or detergency of interior elements is required.

Attention!
1 It is not recommended to use paper-based wallpaper!
2 It is recommended to use the glue and technology of the wallpaper manufacturer.
3 It is possible to fix the gypsum board sheets directly on the sheathing made of DSP using screws
with overlapping seams, in this case it is possible to use any type of wallpaper.

FACING WITH CERAMIC TILES
It is not recommended to glue ceramic tiles directly onto DSP sheets.

To obtain a durable finish on planking made of DSP, it is necessary to fix the sheets of gypsum plasterboard directly to the plating of DSP using screws with overlapping seams of at least 200 mm. (in this case, the DSP sheathing plays the role of a load-bearing element).

The adhesive mastic is applied to the entire working surface of the board. 4 - GKLV sheets.
In rooms with high humidity (bathroom, showers), ceramic cladding premises high humidity it is recommended to carry out according to the following scheme (fig. 3).
1 - DSP;
2 - expansion seam;
3 - fastening the DSP to the frame;
4 - sheets of gypsum plasterboard;

6 - soil "Tiefengrunt" inf. 4503;
7 - glue "Flekskleber" inf. 0710;
8 - ceramic cladding;
9 - joint compound "Fugenweiss" inf. 7503

In rooms with insufficient ventilation for structures with a constant water load (walls adjacent to the bathroom, shower cabin), DSP should be used with an appropriate waterproofing coating(fig. 4): 6 - Waterproofing "Flechendicht"

1 - DSP;
2 - expansion seam;
3 - fastening the DSP to the frame;
4 - sheets of gypsum plasterboard;
5 - junction of sheets of gypsum plasterboard;
6 - waterproofing "Flechendicht";
7 - soil "Tiefengrunt" inf. 4503;
8 - glue "Flekskleber" inf. 0710;
9 - ceramic cladding;
10 - joint compound "Fugenweiss" inf. 7503

FLOOR COVERINGS
Floors made of cement-bonded particleboards for thin-layer floor coverings (Fig. 5) linoleum, carpets it is necessary to putty over the entire plane, giving Special attention the joints of the plates. For the putty, it is recommended to use elastic acrylic based mastics. Possible irregularities, inconsistencies of the edges of the plates are recommended to be removed by grinding according to the previously described technology

1 - DSP;
2 - soil "Tiefengrunt" inf. 4503;
3 - putty;
4 - linoleum;
5 - elastic joint filler "Bau-silicone" inf. 5501;
6 - expansion seam

Ceramic tile floor
When installing a floor from ceramic tiles, it is recommended to use prefabricated floor bases made of gypsum-fiber sheets, on the leveling layer of dry backfill, while DSP plays the role of a load-bearing base (see diagram in Fig. 6)

1 - DSP;
2 - expansion seam;
3 - dry backfill;
4 - PE film 0.1 mm (bituminous paper);
5 - Knauf Superpol (floor element);
6 - screws for GVL 3.9x19;
7 - adhesive mastic;
8 - putty Fugenfüller GV;
9 - waterproofing "Flechendicht";
10 - soil "Tiefengrunt" inf. 4503;
11 - glue "Flekskleber" inf. 0710;
12 - ceramic cladding;
13 - joint compound "Fugenweiss" inf. 7503;
13 - edging tape

The simplest surface finish of CBPB is painting with the formation of open seams (gaps) between the boards.

FRONT PAINTING CSP TAMAK. SYSTEM WITH VISIBLE EXPANSION SEAMS

FRONT PAINTING CSP TAMAK. CLOSED EXPANSION SYSTEM

PLASTER

FACADE PLASTER CSP TAMAK. SYSTEM WITH VISIBLE EXPANSION SEAMS OR SEAMS COVERED WITH DECORATIVE PLANKS

Diagram of an open expansion joint device to compensate for linear changes caused by temperature and humidity influences.

FACADE PLASTER CSP TAMAK. CLOSED EXPANSION SYSTEM

Closed expansion joint device diagram

NOTE

When carrying out finishing work, it is necessary to strictly follow the instructions for use of the material systems given by the manufacturer. Texture paints are the least demanding on the quality of the finished surface, therefore they are recommended for self-painting of facades with a roller. It is recommended to apply non-textured (smooth) paints only on specially prepared surfaces with recessed and putty screws.

For fastening the CBPB TAMAK to the frames on the facades, it is recommended to use galvanized or anodized self-tapping screws (hereinafter self-tapping screws), because black (phosphated) ones can corrode under the influence of atmospheric moisture, while they lose their strength properties, and rust can show through the topcoat.

SURFACE PREPARATION OF CBPB TAMAK FOR FACADE FINISHING WORKS

Before painting, it is necessary to prepare the surface of the DSP as follows:

• deepen all screws by 1-2 mm;
• putty all grooves and chips facade putties, for example, produced by the company LNPP "Putty for painting" + cement М500Д0;
• after the putty has dried, clean the resulting roughness with sandpaper;
• clean the surface of the plate from dust with a damp cloth;
• to level the absorbency of the particle board surface, apply a deep penetration primer with a roller or brush on all sides of the board, including the edges;
• it is more convenient to process the edges of the slab with a primer not one sheet at a time, but at the moment when the slabs are in a pack;
• then apply finishing materials according to the instructions given by the manufacturer.

WALLPAPER

Direct wallpapering of the working surface is carried out after fixing the primed plates and filling the expansion joints with elastic mastic.

The surface finishing of the slabs can be done using vinyl wallpaper, glass wallpaper, non-woven wallpaper. In this case, the expansion joints will be hidden.

Vinyl wallpaper is used for finishing rooms with increased aesthetic requirements and where high wear resistance or detergency of interior elements is required.

Attention!

1. It is not recommended to use paper-based wallpaper!
2. It is recommended to use the glue and technology of the wallpaper manufacturer.
3. It is possible to fasten the gypsum board sheets directly to the sheathing made of DSP using screws with overlapping seams, in this case it is possible to use any kind of wallpaper.

FACING WITH CERAMIC TILES

To obtain a durable finish on planking made of DSP, it is necessary to fix the sheets of gypsum plasterboard directly to the plating of DSP using screws with overlapping seams of at least 200 mm. (in this case, the DSP sheathing plays the role of a load-bearing element).

The adhesive mastic is applied to the entire working surface of the board. 4 - GKLV sheets.

In rooms with high humidity (bathroom, showers), ceramic cladding of rooms with high humidity is recommended to be carried out according to the following scheme (Fig. 3).

1. - DSP;
2. - expansion seam;
3. - fixing the DSP to the frame;
4. - sheets of gypsum plasterboard;
5. - ceramic cladding;

In rooms with insufficient ventilation for structures with a constant water load (walls adjacent to the bathroom, shower cabin), CBPB with an appropriate waterproofing coating should be used (Fig. 4): 6 - Waterproofing "Flechendicht"

1. - DSP;
2. - expansion seam;
3. - fixing the DSP to the frame;
4. - sheets of gypsum plasterboard;
5. - the junction of the sheets of gypsum plasterboard;
6. - waterproofing "Flechendicht";
7. - soil "Tiefengrunt" inf. 4503;
8. - glue "Flekskleber" inf. 0710;
9. - ceramic cladding;
10. - joint compound "Fugenweiss" inf. 7503

FLOOR COVERINGS

Floors made of cement-bonded particleboards for thin-layer floor coverings (Fig. 5) linoleum, carpets must be putty over the entire plane, paying special attention to the joints of the plates. For the putty, it is recommended to use elastic acrylic based mastics. Possible irregularities, inconsistencies of the edges of the plates are recommended to be removed by grinding according to the previously described technology

1. - DSP;
2. - soil "Tiefengrunt" inf. 4503;
3. - putty;
4. - linoleum;
5. - elastic joint filler "Bau-silicone" info.5501;
6. - expansion joint

Ceramic tile floor

When installing a floor from ceramic tiles, it is recommended to use prefabricated floor bases made of gypsum-fiber sheets, on the leveling layer of dry backfill, while DSP plays the role of a load-bearing base (see diagram in Fig. 6)

1. - DSP;
2. - expansion seam;
3. - dry backfill;
4. - PE film 0.1 mm (bituminous paper);
5. - Knauf Superpol (floor element);
6. - screws for GVL 3.9x19;
7. - adhesive mastic;
8. - putty Fugenfüller GV;
9. - waterproofing "Flechendicht";
10. - soil "Tiefengrunt" inf. 4503;
11. - glue "Flekskleber" inf. 0710;
12. - ceramic cladding;
13. - mastic for seams "Fugenweiss" inf. 7503;
14. - edging tape

Frame house, like any other Vacation home, requires exterior decoration... For this are used different materials: lining, siding, sandwich panels, etc. Plaster is used along with building materials. This method is quite simple and can be implemented by the home owners themselves, who do not have much experience in construction and decoration.

Facade plaster frame house is performed using two common technologies. In the first case, cement-bonded particle boards (DSP) are used, in the second - the imposition reinforced plaster in several layers on a metal mesh. Plaster on DSP is the simplest in terms of labor intensity, but this method is less durable. Even with proper adherence to the plastering technology, after five years, cracks may begin to appear on the walls of the house in the joints between the cement-bonded particle boards. Applying a special plaster to a metal mesh takes a lot of time and requires a certain skill, but the result will be worth the effort: o new decoration the outer walls can only be remembered in 15 years.

Plaster on cement-bonded particle boards

DSP boards are a popular finishing material that is made from a mixture of sawdust, wood shavings, cement and some chemical components. After preparing the mixture, it is pressed into plates and dried, forming strong and water-resistant plates, which, moreover, are completely fireproof. Square meter such a plate weighs 14-15 kg. All this, combined with a flat smooth surface, makes cement-bonded particle boards a universal option for suburban construction. In addition, they perfectly withstand longitudinal loads and serve their owners for many years.

DSP boards for wall decoration frame houses can be used in two technologies. The first technology is simpler and involves the installation of panels directly on the frame of the house through a layer of insulation and waterproofing. In the second case, to increase the reliability of the house structure, the frame is first sheathed with plywood or OSB boards. After that, small slats are attached to them, on which cement-bonded particleboards are attached. In either case, the plates are attached to the frame or slats using nails or screws. For reliable fastening, they must go deep into the tree to a depth of at least 2 cm. If the boards are mounted on drywall, only self-tapping screws are used as fasteners. The holes for them must be made in advance using a drill and drill.

Since DSP boards are produced quite large area, for finishing the facade of a frame house, they can be cut to the desired size with a grinder. When installing between adjacent slabs, a gap of 5-7 mm must be left in order to avoid the negative consequences of deformation after a temperature difference. These gaps are not ignored: after the plates have been installed and kept for some time, the joints are covered with sealant or other similar material. Then the extra layer of material is cut off, and the joints are closed with decorative strips.

Cement particle boards are good because they have a very smooth surface and have good adhesion to most finishing materials. This is why they are the ideal surface for application. decorative plaster, which, among other things, is used for wall decoration from other materials. After processing the DSP board with plaster, the wall of the house is very difficult to distinguish from the stone one. However, due to the expansion of the slabs, cracks may appear on the wall after a while, so it is periodically necessary to cover up the seams. new plaster... You can go the other way: in order not to prepare the plaster every time, the owners of the frame house just need to install decorative strips or panels on top of the plaster. They must be positioned vertically and horizontally, that is, in all places where cracks may appear.

Plasters for frame houses

In addition to classic decorative plaster, other types of it are used to decorate the facade of a frame house:

• Elastic plaster... A special type of plaster, which, as the name suggests, can slightly change its geometry. It is usually applied to the bottom layer. ordinary plaster to prevent cracking. The elastic material is made on the basis of acrylic and withstands both very coldy and extreme heat with direct sunlight.

To the disadvantage elastic plaster for frame houses, its high cost can be attributed. This material appeared relatively recently in our country, and has not yet received widespread... However, many houses have already been plastered with this composition, however, due to the long warranty period (up to 10 years), it has not yet been possible to verify whether the figures indicated by the manufacturers are correct.

• Multi-layer plaster... This composition differs from ordinary plaster, and requires special preparatory operations. The main requirement is that it can only be applied to the OSB coating. Moreover, the plates must be installed in such a way that the chips are located horizontally in them. Only in this case OSB boards they can easily withstand the additional weight of the plaster and do not deform when the temperature drops.

Before applying plaster to OSB boards, the latter must be covered with a special fire retardant membrane. This is done in order to reliably protect the insulation material before plastering. If you are unable to cover the wall with a solid piece of film, you can lay it in strips, overlapping them. Also, before plastering front house care should be taken to provide additional protection for window and door openings. To do this, they are pasted over with a primary waterproofing layer, on top of which the main film is laid. The films are fastened with a construction stapler. As for the frame of the house, the gap between the uprights should be the same as when sheathing with siding or clapboard.

Plaster on the grid

Plastering in a frame house on a metal mesh is another popular option exterior decoration at home. The mesh for this procedure must be steel; it is attached to the frame with staples, screws or nails. For walls of a small area, you can take a grid in the form of a solid canvas, which must be supported with a vertical or horizontal corner, so that it does not sag in the middle and does not touch the cladding of the house. At the corners, the mesh is closed with a steel corner, or its ends simply overlap each other. At the bottom of the wall, a metal strip is nailed, which fixes the mesh and serves as a support for applying the plaster. If the mesh is installed without sagging, then the likelihood of cracking when applying the plaster will be minimal.

It is quite easy to apply plaster over metal mesh. To increase the strength, fiber fibers are added to the solution. The primary plaster is applied in a fairly thick layer (up to 2 cm), but it does not need to be leveled too carefully. Drying of the first layer occurs within two days at a temperature of at least 18 degrees above zero. With more low temperatures the drying time should be extended by one more day. When this layer is dry, it should be installed plastic mesh and apply finishing layer decorative plaster. It differs from the substrate only in the absence of fiber fibers in the mixture and in a thinner layer. If in the future you intend to paint the wall, upper layer should be aligned. The total thickness of all layers on top of the OSB board should be two and a little centimeters. This value ensures the strength of the structure without making the house heavier.

Decorative plastering

Decorative plaster can also be considered a relatively young technology, but, unlike elastic plaster, it is very popular as finishing material for the most different surfaces... Decorative plaster in frame houses can be applied in one layer without drying. This is possible in cases where a topcoat will be installed on top of it: ceramic tiles, a natural stone etc. Thus, the plaster itself will be the first finishing layer. In addition, the plaster can be painted and varnished.

Modern decorative plasters are such that they combine excellent appearance with protective properties. However, if your house is being built in difficult climatic conditions, you can additionally process its walls. special formulations... As a last resort, you can only process the side that is in the sun or most often in the rain. But keep in mind that additional coatings can impair the gas permeability of the walls, which does not occur when covering only one decorative plaster.

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