Adhesive for plaster mesh on penoplex. How is the plaster on the penoplex carried out? Mixes for plastering types and advantages

The facade of any house requires quality finishes... It not only gives the building an attractive appearance, but also protects from various adverse influences of the surrounding world - from precipitation and direct sunlight.

To give the building an aesthetic appearance and protect the building, it is worth using.

There are many types of this material, the choice can be made based on different parameters.

For example, if the front of the building is covered with foam, it is worth purchasing just such a plaster for the foam.

A coating of such a plan is a high-quality finishing hardened layer, which is formed on the basis of a special plaster solution intended for finishing the facade parts of buildings and structures.

Important! Properly selected and applied plaster allows you to effectively level the surface of the outer walls, potholes and numerous cracks can be repaired, as well as to protect the building and give it a look that fully matches individual taste preferences.

Modern facade plasters are in fairly high demand, since this coating is characterized large quantity positive qualities and properties.

Among them, we can note such advantages as:

1. High strength indicators. Facade plaster- this is a special shell of the house, thanks to its qualities, it ideally protects the structure from adverse factors.
2. Frost resistance Is an important advantage for most regions of the country. This indicator must be taken into account, since when frost sets in, the coating will simply crack. Facade plaster for penoplex is able to withstand temperatures up to minus 50 degrees.
3. Lifetime... The plastering process is quite complicated, but all the time and money spent is fully paid off by the optimal durability of the material. On average, facade plaster can last up to 15 years.
4. Vapor permeability- the ability to remove condensate. This prevents the process of deterioration of the finish, as well as the formation of mold and mildew.
5. Easy to install and maintain... If desired, you can apply the plaster yourself, and no special care is required for the material.

Thanks to all the advantages listed above, the plaster not only fits perfectly on the penoplex, but also performs all its decorative and protective functions.

Facade plaster on penoplex and expanded polystyrene - types and features

In the construction of private country houses, special heaters are necessarily used. Among the large number modern materials Penoplex deserves special attention. It is distinguished by its ease of use and is realized at an affordable cost.

Despite the data high quality characteristics, even penoplex needs some protection. For this purpose, a special plaster from such manufacturers as "", "Ecomix", "Stolit" is used.

These compositions are actually high level perform the following rather important functions:

• Effective moisture protection. Plaster, due to its qualities and properties, protects the insulation from destruction;
• Protection of penoplex from the adverse effects of sunlight;
• Significant improvement in the overall appearance of the building.

As for manufacturers, it is not worth using different mixtures to cover the same building, since each of them may have a different composition, which will lead to a decrease in the overall quality of the coating.

Universal plaster is consumed as economically as possible from 4 kg / m 2 for gluing a reinforced mesh and up to about 6 kg / m 2 for full leveling of the outer walls of the building.

The mixture must be diluted sufficiently liquid, it must drain from the spatula. At the beginning of the work, a solution is prepared, after which you can proceed to gluing the mesh itself, on which the penoplex plaster will be installed.

Surface preparation for application

The process of plastering the foam is preceded by certain preparatory work. The surface must be carefully leveled, and this can be done by grouting.

With a well-executed process, you can effectively remove all the bumps and pits. It is at the grouting stage that the surface of the outer walls must be very carefully worked out. This is very important requirement, since after applying the plaster, all the problems and defects left will open to the eye.

Mesh work

After grouting, fastening work is carried out. This is an important and obligatory stage in the plastering performed, since without a mesh, the plaster will quickly crack or just slip... At this stage, you can use a mesh that is designed specifically for facade works... The net weight should be between 140 and 160 g / m2 on average.

It is the density of the mesh that directly depends on how even the plaster layer will be.... In other words, the higher the density, the better and smoother the plaster layer will be.

NOTE!

The mesh for facade work must be used alkali-resistant, since cement is often present at the base of the foam.

The acquired mesh is attached using a special adhesive mixture, which is applied with a thickness of 2-3 mm... The composition is simply applied to the surface and the reinforcing mesh itself is immediately applied.

The product must be pressed into the composition by about half, that is, the glue mixture must completely cover the surface of the mesh. The glue must be applied gradually, it is important that it has time to fully grab, the mesh itself is attached in small sections.

The mesh must be pressed down with a smooth spatula during application. In this case, the strips must be glued strictly with an overlap, and not less than 10 cm. Everything must be glued very carefully, since non-glued compounds or applying the compound only to the joints will appear even through the finishing finish.

Surface leveling

As soon as the mesh layer is completely dry, the surface can be trowelled. Here, a specially prepared sandpaper or a construction float is used.

This should be done after the coating is completely dry.... The time for this cavity drying depends on the weather. The higher the temperature and the drier the air, the faster the applied plaster will dry.

If the work is carried out in the summer, on average, it may take up to three hours... If the finishing of the building is carried out in the cold season, you can start grouting in about a day.

In any case, there is no need to rush, since the plaster will not be of the required quality and appearance. The grout itself is carried out without any effort, it is enough to carry out special circular movements and, moreover, counterclockwise. The process ends after all defects are completely smoothed out.

After that, the surface is leveled and another layer is applied. plaster mix... Penoplex plaster is made using the same mixture as in the previous stages. When carrying out these processes, it is necessary to use a spatula with which the mixture will be applied. The plaster layer should be approximately 3 mm thick.

At the end of these works, the final grout is carried out. It begins only after the previous layer has completely dried, this is no less than a day after the last layer has completely frozen.

CAREFULLY!

While waiting for it to dry completely, you should not go to extremes, since you have to wait more than four days, the coating will become very hard, therefore, it will be very difficult to process it.

Facade plastering technology for insulation

If, in the process of finishing the outer walls, it was decided to use a powder putty, first it will need to be thoroughly diluted. To do this, approximately half of the water is collected in the bucket and the powder is carefully poured. In the process of falling asleep, you need to constantly use a special construction mixer. As a result of the work carried out, the mixture should become similar to mashed potatoes.

Once the mixture has acquired the desired consistency, it should be left for about 5 minutes and it is desirable that it be calm. After that, everything is whipped and you can immediately start working. If used, it can be applied to the wall without carrying out any preparatory processes.

There are certain tips to follow here:

1. When applying putty, you need to use a wide spatula, on which the mixture is placed using a small and narrow spatula, which is placed in a bucket.
2. It is very important to ensure that the new finish is completely merged with the previously treated one.
3. Care must be taken to ensure that all joints are invisible.
4. Before applying the putty, do not forget to treat the wall with a special primer. It is she who provides additional waterproofing.
5. The layer thickness should not be more than 5 mm.
6. After the layer has dried, it must also be completely wiped off. This process should be carried out no earlier than 3 hours after the mixture was applied.

After carrying out work related to the putty, you need to apply a primer. With the help of this composition, you can effectively remove all dust particles that may be present on the surface of the walls and make the surface as smooth as possible. At the end of these works, you can start painting.

Surface painting

To give the walls the most complete look, many owners. The most important thing to consider here is the type of pre-applied filler. There must be compatibility between it and the paint.

It is very important to avoid paint formulations that contain components such as:

• Acetone;
• Benzene;
• Xylene;
• Toluene;
• Drying oil;
• Resin;
• Coal tar.

These are components that are quite common for painting materials, but their use is unacceptable, since each of them is capable of destroying penoplex. The best option for painting walls insulated with foam, mineral-based paints are used.

They are made from lime or cement, and these components, as you know, do not have the property of reacting with insulation. Silicate paints are also suitable, which do not harm the penoplex. Fit equally effectively Decoration Materials, which belong to the category of water-based emulsion.

Also, it should be exactly facade paints, since they are characterized by high indicators of reliability and resistance to adverse weather conditions.

Useful video

Master class on applying plaster to the surface of the insulation:

Summing up

If it was decided to carry out work on plastering, the subsequent putty of the facade and its painting to be carried out independently, you should definitely follow all the tips and recommendations presented to your attention. It will not be superfluous to consult a professional who will help you choose the best suitable mixture, putty and paint. All compounds used must necessarily comply with the established requirements.

In contact with

Penoplex refers to a new formation of heat insulator, presented in the form of a plate of extruded polystyrene foam. Its main difference from conventional PPP is more high density, strength and fire resistance. Its excellent thermal insulation properties allow significant savings on space heating. In this article, we will talk in more detail about wall decoration with plaster on foam.

Pros and cons of facade insulation with penoplex

The main advantages of the material:

• low thermal conductivity (coefficient of thermal conductivity 0.03 W / m · ºK)
• resistance to compression and the ability to withstand mechanical loads, due to the homogeneous structure of the material, where evenly spaced pores increase the strength of the heat insulator;
• low water absorption (0.2 - 0.4% of the volume in 24 hours with full immersion);
• withstands a wide range of temperatures: from -50 to +75 degrees;
• resistance to mold and decay;
• fire resistance;
• good soundproofing qualities;
• low material weight - easy transportation;
• ease of installation, installation of plates is possible independently by one person. Standard sizes penoplex: width 600 mm, length 1200 mm, thickness from 20 to 100 mm;
• versatility, the ability to insulate any building elements: walls, basement, foundation, roof, floor;
• safe, does not emit toxic substances;
• long service life, subject to correct use, at least 50 years.

The disadvantages of the material include:

• low vapor permeability (0.007-0.008 mg / m · h · Pa). When using the material indoors, ensure good ventilation to avoid condensation and mold. Also, it is impossible to insulate aerated concrete without internal vapor barrier of the walls.
• high price - about two times more expensive than polystyrene and mineral wool.

Due to its heat-saving qualities and ease of installation, penoplex has become widespread and is increasingly used for insulating buildings, displacing ordinary foam.

Can I plaster it?

Despite its moisture resistance, the penoplex must be closed from atmospheric precipitation. Moreover, it is necessary to create an attractive appearance of the building. Indoor decoration this insulation PVC and MDF panels are suitable. Outside the house, you can arrange a ventilated facade made of siding or wall panels.

Penoplex can be plastered both indoors and outdoors. This will be a versatile finishing option. How to do this, and what is required for work, we will consider below.

Which mix is ​​best?

When choosing a plaster, one should take into account its characteristics and climatic conditions. Since the plaster must protect the insulation from mechanical, chemical and climatic factors, guarantee fire safety, increase heat and sound insulation characteristics, smooth out unevenness in the base, giving the room a flawless appearance.

There are such types of plaster mixes:

• Mineral... A mixture based on cement, sand, as well as plasticizers and adhesives. It is a good choice for use as a paint base coat or decorative plaster ... The mortar is easy to apply, resistant to fire, moisture and mold. At the same time, it is inexpensive.
• Acrylic... It is presented in the form of a solution based on acrylic resins with mineral additives and dyes. Main advantages: a rich range of colors and textures, elasticity, strength, resistance to atmospheric precipitation and ultraviolet radiation... Creates a dense moisture-proof film.
• Silicone... Differs in high elasticity and strength. A versatile mixture with high performance, a rich palette of colors and offered as a ready-to-use solution. The disadvantage is the high cost of the material.
• Silicate mixture is made on the basis of liquid glass, protects well from frost, winds, humidity and temperature extremes. The composition has good vapor permeability, therefore it maintains a comfortable indoor climate. In work, it requires efficiency, because it quickly grasps.
• Silicate-silicone plaster contains water-repellent additives, mineral fillers and coloring pigments. The technical characteristics include increased mechanical resistance and elasticity, resistance to atmospheric precipitation and good adhesion to the surface.

Penoplex plastering

Let's summarize which of the plasters is better. To create protection against mechanical damage and for additional thermal insulation of the building, plaster on a cement-sand base is suitable. But the plastered surface will be unattractive. Therefore, it will be necessary to additionally paint the facade or apply a layer of decorative plastering.

Of the above formulations, silicone will be the most durable, but also the most expensive. When choosing texture and color crucial will have only the opinion of the customer, which finish is closer to him: "bark beetle", "fur coat", imitation of a stone or other types.

How to plaster outside and indoors: step-by-step instructions

The plastering process is not particularly difficult, but must be carried out in compliance with the technology.

To work you need tools:

In this case, when painting, do not use paints with solvents. They will corrode polystyrene foam. Acrylic or water-based formulations work well.

Let's summarize. Penoplex plastering does not require much experience or special skills. But you need to remember about the use of reinforcing mesh and adhesive plaster solutions. Simple technology gives great opportunities for wall decoration and allows you to create a unique look for warm facades .

We hope this article was helpful to you. Leave your feedback and questions in the comments below.

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Facade Facade plaster technology for expanded polystyrene: we close the reinforced insulation with an adhesive mixture and cement mortar

Foam and foam plaster does not differ much from other surfaces. True, it should be said that there are some peculiarities here. We will consider how to plaster penoplex in this article. Also, in the video in this article, you can watch many moments of the work and instructions will be given on all points. Penoplex is it possible to plaster the problem solved, it is quite capable of doing it.

Penoplex plastering is done in several stages. To understand the whole process and know what materials will be required, you need to understand this:

• Mortar preparation (see How to prepare plaster mortar correctly);
• Plaster mesh and its attachment to the surface;
• Works on grouting on a grid for plastering;
• The layer with which the surface will be aligned;
• Trowelling works, which are carried out on a layer with the aim of leveling;
• Primer;
• Final work.

If we analyze all the stages in more detail, then we can come to the conclusion that although the process is laborious and takes a lot of time, it can be divided into several days.

We prepare the plaster solution

Plaster with foam glass does not connect very well. This is where the foundation should be prepared and applied. high quality coverage... To carry out work with a polystyrene substance, which also includes polystyrene, you need to use ready-made solutions. Different manufacturers producing dry mixes have several assortment options. The quality and price will vary depending on the company.

• But if it was decided to save your money and not spend too much on the mixture, you should not forget that the result of the work, which will be visible at the very end, largely depends on the quality. Do not lose sight of the fact that different mixtures cannot be used in one area, because they can differ not only in their color palette, but also in structure;
• The best option is considered to be universal mixtures. They can be used as an adhesive base for attaching foam to the wall, as well as a protective layer. When buying material, do not be lazy, read the instructions written on the package, perhaps this solution does not suit you;
• The universal mixture is used for installing a special mesh on the wall and for other works related to plastering. The material consumption is quite high, so if it is supposed to process significant volumes, you need to buy a couple of bags at once. To apply one square meter the plaster mesh will have to consume about four kilograms. To align the wall with a square will take six kilograms;
• The method of preparation of the mixture itself is not particularly difficult and is usually indicated on the packaging. All instructions must be strictly followed in order for the material to be of maximum quality. To fix the mesh for plastering, it is better to use a mixture of a different density than that recommended by the manufacturer, but to do it a little less often. When applying a layer called a leveling layer, the consistency must be liquid enough so that it almost drains off the tool.

In principle, everything is very clear with the technology for preparing the mixture used for plaster. Now you can start directly to work and fix the mesh, since it is she who serves as the main layer for applying plaster.

We mount the plaster mesh to the wall

The plaster on the penoplex is applied through the mesh. It significantly enhances the adhesion of surfaces and makes the coating more durable. Before you start plastering the main material for insulation, or rather penoplex, it is important to make sure that the plaster itself and the leveling mixture have good adhesion to the surface.

Note: By itself, it does not have good adhesion characteristics. If you do not apply plaster on it in time, then it will begin to crack, and even worse, it will disappear altogether, and all the costs and efforts will be in vain. To prevent this, the plaster mesh is intended.

• If you are working with outdoor insulation, then it is best to acquire material intended for facade work. Such a mesh has a fairly high density, and the higher the actual indicator, the better the plaster layer will lay. But even in such a situation, there are some small nuances - if the mesh density is too high, then working with the corners will have to sweat;
• It is better to take a mesh with a density of one hundred and forty - one hundred and sixty grams. Another advice to those who are taking the first steps in finishing: it is better to buy a mesh that is susceptible to alkali due to the fact that the main component in the plaster mixture is cement.

Penoplex is one of the best modern types of material for insulating plinths, facades and interior walls. It has good strength, high heat-insulating ability, which is further improved by the plaster on the penoplex. Despite the tangible cost, more effective method insulation of buildings indoor spaces hard to find.

Penoplex features

Synthetic polystyrene foam products have been made for a long time, for over 70 years. Penoplex differs from traditional boards by its production technology, which uses extrusion. Blowing agents are initially added to the polymer to ensure an even distribution of the cavities throughout the mass. As a result, after extrusion, a structure with closed microscopic cells is formed, the size of which does not exceed 0.2 mm.

The main qualities of the slabs are as follows:

• low density;
• light weight;
• well-pronounced ability to retain heat;
• minimal tendency to absorb moisture.

With all its advantages, the material requires increased attention due to its high flammability and poor vapor permeability. Penoplex must be used correctly, taking into account the obligation to ensure good ventilation of the walls and the need for especially strict adherence to the rules fire safety... To protect against external influences, plaster is applied to the penoplex.

Why plaster

Plastering is a necessary part finishing works, allowing you to safely invest in thermal insulation without fear of its destruction in the future.

External plaster protects the facade from wind, precipitation that can damage the material. The internal plaster layer on extruded expanded polystyrene can serve as an additional decorative finish.

Penoplex is a durable polymer; nevertheless, under strong local mechanical loads, dents can form on it, due to which cracking on the sheets is not excluded. If the coating is plastered, its impact resistance will increase, and an additional layer of protection of the synthetic board from the action of UV rays will appear.

The heat-insulating coating of foam sheets has joints, which are usually sealed with polyurethane foam. To form a perfectly flat surface, to protect the seams from aging, plaster should be applied on top of the sheets and seams.

Required tools and materials

In order for the matter to be argued easily and quickly, you need to think over everything in advance, collect necessary materials, aids, tools.

Exists different brands plaster mixes, priming agents with a similar basic composition, which does not exclude the presence of minor features in the nature of impurities. For wall decoration, the room as a whole, it is advisable to stock up on enough material from one manufacturer. This will exclude the possibility of incompatibility of the mixtures, they will ideally be combined with each other in the work.

Advice! Prepare tools for mixing the plaster mixture in advance. There are many options: from the usual long wooden spatula or putty knife to a drill with special nozzle... Find a good, comfortable spatula with an ergonomic handle that makes it easy to move around the plane.

To improve the adhesion of the penoplex to the pasty mass of plaster, the surface is treated with a metal brush or a needle roller. Roughness will improve adhesion, ensure reliable adhesion of the composition to the insulation.

Finishing outside corners requires special perforated corners and levels to verify correct installation. It is imperative to buy a reinforcing mesh, without which all work loses its meaning. In some places, you will need glue to fix it. Study the composition, recommendations for use in advance. To grout the surface, you need to purchase a plastic float with sandpaper. It is convenient to carry out the final finishing with a roller with a small dense pile.

Types of mixtures

Strength is required from the foam plaster for the facade; it should not change under the influence of precipitation. There are compositions for universal and highly targeted purposes. When choosing, you should consider all possible types loads on the coating.

Multifunctional tools

The universal composition can be used at several stages of finishing work. With such plaster, you can fix the penoplex to the wall, then fix the reinforcing mesh on the outside on the sheets. The universal mixture can be used not only for plastering, but also for priming surfaces. The agent costs a little more than formulations of a strictly directed action. The higher price is compensated by the possibility of multifunctional use.

Mineral remedies

Popular with craftsmen cement mix, which contains sand and a small amount of polymer filler, which improves the fixing of the material to the surface. Often such plaster is called mineral because of the predominant amount of inorganic components. It is necessary to prepare the mixture in accordance with the recommendations of the manufacturers, which often contain instructions on the need to add PVA glue to the mass. If the introduction of additional components is not stipulated in the accompanying documents, there is no need to do this on your own. Some plasters contain gypsum and stabilizers. Such mixtures are very plastic, they stick to the penoplex more slowly.

If there is not enough money for the purchase of finished plaster, you can make the compositions yourself from two components:

• cement and lime;
• clay and lime;
• clay and cement;
• clay and gypsum.

This is not the most the best solution, especially since the type of clay is fundamental to the quality of the plaster. With the right clay, good quality cement and hydrated lime, the mixture can be quite successful. Mineral compositions can be used to plaster the facade insulation from the outside and putty on the penoplex inside the room.

Acrylic

Mixes based on acrylic polymers are intended primarily for finishing areas located in areas of high humidity, high mechanical stress. The cost of polymer plasters is more than mineral compositions but the greater resistance to external influences justifies the difference in price. Acrylic plasters are highly elastic, which makes them easier to work with.

Silicate

A successful combination of properties is demonstrated by silicate plasters, which do not contain polymer additives, therefore, do not electrify. Silicates pass steam well, do not degrade under the influence of atmospheric moisture, and do not undergo microbiological degradation. This is the most acceptable mixture with which you can plaster both external and internal walls. It is enough to competently process the surfaces once and you can have no problems for many years. Silicate material environmentally friendly, does not contain harmful impurities, guarantees the cleanliness of the adjacent airspace.

Famous manufacturers

Products from different manufacturers are presented on the domestic market of plastering materials. The most common are the following three trademarks:

• "Ceresit";
• Ecomix;
• "Stolit".

There are imported products and mixtures of other domestic companies, the characteristics of which are always indicated in the attached instructions.

Means "Ceresit" are presented in a large assortment, including all types of plaster: silicate, silicone, acrylic, cement. The products have good performance characteristics, are easy to use due to their elasticity, and are durable.

Ecomix plasters can be used for exterior work or interior walls of premises. The compositions are characterized by environmental safety, moisture resistance. Facade finishing works using plaster from this company should be carried out in the warm season, at temperatures of at least +7 ° C. Mixtures can also be used to eliminate defects: chips, cracks, deformations on old surfaces covered with plaster for a long time.

The assortment of the Stolit company is represented by compositions based on cement, to which stabilizers and modifiers have been added. Due to this, the plaster has high temperature resistance, does not react to high and negative temperatures, and adheres well to the penoplex.

Preparation of the solution

Recommendations for the preparation of commercially available mixtures are contained on the packaging and accompanying documents. When buying, you can get additional advice about the features of the funds, the specifics of their preparation.

When making plaster yourself, you should remember the main points. Components taken in accordance with a specific recipe must be sieved and mixed well. It is advisable to check the stickiness of the mass before starting work. If the plaster sticks strongly to the trowel, it will be difficult to apply. In this case, the amount of filler should be increased. If the mixture does not stick at all, the amount of astringent should be increased. Using the method of samples, you should select the average fat content of the mixture, because if the viscosity is excessive, the plaster layer may crack after drying. Insufficiently sticky mixture is not very convenient to work with, forms a layer with low strength.

Installation of reinforcing mesh

Before applying a layer of plaster, penoplex must be reinforced with special nets. For reinforcement the best way polymeric cellular fabrics with a density of at least 140 g / m2 and not more than 160 g / m2 are suitable. General rule such - the smaller the cells - the better the reinforcing properties. A high-quality mesh with suitable characteristics helps to level and strengthen the surface of the foam.

Note! If the use of cement-based plaster is planned, the mesh must be inert to an alkaline environment.

Reinforcement must start from the corners. To do this, cut strips from the mesh, the width of which should not be more than 35 cm, and the length is determined by the length of the corner. The strip is folded in half lengthwise, the composition is applied to the penoplex for fixing and the mesh is pressed against it.

Reinforcement of the entire wall is performed in a similar way. First, a layer of fixing mixture (plaster) is laid, then the mesh is pressed against it, smoothed and made sure that it is fixed. The reinforcing fabric should be overlapped, because the areas not covered with a polymer mesh will stand out noticeably against the general background. On top of the cellular coating, a thin layer of the fixing mixture is applied, which ensures its snug fit, strong fixation.

Grouting and leveling

A quality wall finish cannot be rushed. The reinforcement layer must be completely dry before starting the next stage of work. For final drying in winter, knocking may be needed; in summer, 4 to 6 hours are enough. When the coating is completely dry before it can be plastered, the surface must be trowelled thoroughly.

This physically demanding job is done with an emery-coated plastic float. Grouting is carried out in a circular motion over the entire area until the surface becomes evenly rough.

Cover decoration

After grouting, plastering of the foam is easy and relatively fast. To decorate the coating, you can use a sponge with large pores or a special float.

There are ready-made decorative plaster compositions that create an unusual texture for the outer surface.

Bark beetle plaster, in addition to the usual basic components, contains white powder and small stones with a diameter of up to 2.5 mm. With certain skills, the master can make different patterns from the same mixture, directing the movements of the spatula in a certain way. Thus, the work of the plasterer turns into the work of the decorator.

If the mixture contains larger pebbles, up to 4 mm in size, the relief is completely different. Granules are crumbs from natural raw materials: granite, marble. Pebble plaster gives the facade an unusual, beautiful look, provides shine in the rays of sunlight. On sale are white cement plaster mixes with addition of large granules of quartz, dolomite, marble. For some unknown reason, she was called a lamb. Perhaps, to someone, the view of the facade reminded the wool of lambs.

How and how exactly to plaster penoplex? Do I need to use it for interior decoration for living quarters? Is a preparatory primer for the thermal insulator required? In the note, we are expected to give answers to these and other questions.

Insulation inside with foam.

Distinctive material characteristics

First, let's begin to get acquainted with the main characteristics of a heat insulator.

What is Penoplex? This is just the company under which the extruded polystyrene foam is made. From the material more common to us - foam - it is important only for its great rigidity.

Interesting: let's immediately disperse one of the myths around the material for insulation by the diligence of managers. The thermal insulation properties of foam plastic do not stand out in any significant way against the background of foam plastic. The difference is practically within the limits of inaccuracy, and it is explained by a decent number of tightly closed air cells in the material configuration.

Compare the heat conductivity of non-pressed (foam) and extruded (foam) expanded polystyrene.

The properties of penoplex directly stem from the raw materials used in its production and the structure of the material.

• More rigidity than foam, but not happy... A thin plaster layer on its plane asks for reinforcement: otherwise, the very first bruise will become the center of a network of cracks, they very quickly lead to delamination of the coating.
• The material is vapor-permeable, although to a lesser extent than foam.
• Polystyrene emits toxic and volatile styrene even at low enough heating.... If so, when insulating inside, he asks for reliable isolation from the premises for living.
• The adhesive properties of its plane are somewhat inferior to the adhesive properties of foam.

Untreated polystyrene foam is a flammable material; but in the manufacture of foam, flame retardants are added to the raw material, which makes it self-extinguishing.

Materials (edit)

So, what is the material for insulation of interest to us plastered with?

The answer depends on which side of the capital-type wall the insulation layer is placed on.

Insulation inside

For finishing inside, you can safely use putties and gypsum plasters... in particular, from the assortment of Knauf, a company from Germany widely represented on the domestic market, Rotband plaster mix and Fugenfüller multifunctional putty are used. Both compositions are vapor-permeable and have good adhesion to concrete, brick and other porous surfaces.

Pictured is Rotband gypsum-based plaster.

But are the adhesive parameters of the penoplex sufficient for good adhesion to them?

Where no mechanical loads are planned, plastering directly on the insulation is allowed. But with wall decoration at the level of a person's height, balcony railing, etc. it is better to play it safe: in such options, the penoplex is primed in advance with adhesive primers with the addition of sand (Betokontakt from Tikkuril, Ceresit CT 19).

They will give the weakly absorbing plane the roughness needed for our purposes.

What is used in the form of amplification? Basically, fiberglass mesh with a mesh of 5x5 millimeters and a density of 140 g / m2. Cost sq.m. similar material will be 15-20 rubles.

Insulation from the outside

Gypsum perfectly does its own duties in the dry air of the living room, but high humidity and even more rain are contraindicated for it. For external insulation, cement-based compounds are used.

Note: it is strongly not recommended to use ordinary cement-based plasters on penoplex. In this variant, special adhesives for expanded polystyrene are used (for example, in the choice of Ceresit, this is CT 85 plaster-adhesive mixture). The use of cementitious tile adhesive is permitted.

Adhesive for expanded polystyrene from the Ceresit company.

Priming with adhesive primers in this option is quite possible, but not considered simply mandatory: the cement laitance gets into the material for insulation deep enough to guarantee a strong adhesion.

How is plaster reinforced? Fiberglass mesh, but not the first one, but alkali-resistant. Instructions due to the fact that cement is a pronounced alkaline medium: a simple mesh will simply dissolve in it.

Also: plastered surface both in the middle of the room and with outside it can be primed for painting or facing with any other option that gets in with acrylic primer.

Technology

So, how to plaster penoplex with your own hands?

1. The joints between the insulating panels are filled with foam. The squeezed-out foam residues are cut off after it hardens. Plastering the joints means making cold bridges; it is also undesirable to leave voids: in suitable places the plaster will be pressed very easily, and it is necessary to remember about heat transfer due to convection.

The joints between the panels are filled with foam for installation.

1. When facing with gypsum, the penoplex is finished with an adhesive primer. The work takes place after it is completely dry.
2. The mixture - gypsum or cement - is diluted according to the manufacturer's recommendations.

It is necessary to pay attention: does not depend on the composition of the plaster, the dry mixture is poured into the water of the required volume, and not water is poured into the mixture. In another version, it will be quite difficult to get rid of undissolved lumps at the bottom.

1. Cut off a strip of fiberglass mesh about a meter long. It is rather difficult to glue a large area at a time: the glue dries very quickly.
2. Apply the plaster mixture with a medium (width 30-35 cm) with a spatula on a section of the heat insulator approximately 90x90 cm in size. Thickness - about 3 mm. We intentionally leave the edges of the fiberglass mesh not glued: the strips should overlap.
3. We press the mesh into the glue and level it from the center to the edges. We repeat with the next section.

The mesh must be completely pressed into the adhesive layer.

1. When the entire wall is glued and the glue is completely dry, it is best to roughly sand the inevitable blemishes. Work is done by hand, plastic or wood float with mesh for sanding work.
2. Apply a cover 3 mm layer, which will completely hide the reinforcement. After drying, the cons are overwritten again.
3. We prime the surface for finishing.

For the finished cladding, water-based vapor-permeable paints, trellises (of course, in the middle of the room) or textured plaster for decorative work.

Textured plaster will equip the plastered surface.

Conclusion

As you can see, the technology of work does not require any special skills and extensive experience. construction works... More personally about how to plaster penoplex, the video in this article will tell. Good luck!

tooran.com.ua

Plastering technology

Penoplex plastering technology consists of several stages. Let's consider what these stages are below.

Mix preparation

For penoplex plaster, many experts recommend using a special mixture. Its consumption for gluing the mesh and leveling the walls will be 4 kg per 1 square meter and 6 kg per 1 square meter, respectively. In order to knead the mixture, it is recommended to follow the manufacturer's instructions, which are indicated on the package. It should be noted that for some manufacturers they may differ slightly.

Application of the first layer of plaster

First of all, a mesh should be fixed on the penoplex in order to better adhere the plaster to the penoplex. The mesh should be used for exterior facade work with a density of at least 140 g per 1 m². First of all, the mesh must be applied to the corners, if you do not have corners specially designed for these purposes. To apply it, cut a strip of mesh at least 30 cm wide and about 1 m long. The cut strip must be folded exactly in the middle to form an edge. In the next step, apply plaster with a layer thickness of 2 mm. After applying the plaster, press the mesh down with a trowel and smooth from top to bottom.

After you glue the corners, nets, you need to repeat the procedure with the rest of the wall. Apply the plaster to the wall, place a mesh on top of it and smooth out with a trowel from top to bottom. Make sure that the mesh is well pressed into the plaster mix. If necessary, apply an additional layer of plaster over the mesh. The joints between the mesh strips must be well glued together, for this reason it is recommended to overlap them.

Applying a leveling layer of plaster

After the plaster is dry, grout it with an emery cloth or plastic float. After the grouting procedure, the entire wall surface must be leveled. To do this, a leveling mixture is laid out on a long one and applied to a surface with a thickness of no more than 3 mm.

After you have applied the leveling compound, it must be trowelled in the same way as was used to grout the plaster mesh. But it is recommended to perform the grouting procedure no earlier than 24 hours after the application of the second layer of plaster. When grouting, try to achieve the most even surface, since it is on this surface that decorative plaster will subsequently be laid.

Important before proceeding with the application decorative plaster, the wall must be carefully primed. It is recommended to do this with a short-nap roller, as it does not leave streaks on the wall surface.

Fine finishing

At the last stage, the penoplex is finished with decorative plaster. To do this, using a spatula, decorative plaster is applied to a small area in an even layer. And only after that, with the help of a sponge or a float, a decorative texture is formed. Depending on the temperature and humidity of the air, the drying time of the plaster may differ. It usually exceeds 72 hours.

It should also be noted that the drying time depends on the type of plaster used and it is noted in the instructions on the package. After the plaster is dry, it can be coated with a protective varnish or various facade paints.

Now let's look at a few tips to help you avoid possible trouble:

1. If you are plastering penoplex near the doorway, it is recommended to bring the solution a little "flush".
2. If, after plastering the wall, you still have a little mortar, you do not need to smear it on the dried wall, since over time the new layer can move away from the old one. This is due to the temperature and thickness of the plaster layer.
3. The optimum temperature for applying plaster ranges from +10 to +20. degrees Celsius.

strourem.ru

Sable fur coat for home: characteristics of penoplex and its benefits

Penoplex is a heater made in a special extrusion unit that appeared in America more than 50 years ago. The material is produced in slabs of various thicknesses, which outwardly resemble foam plastic. It is perfect for insulating buildings, both outside and inside, since it has a number of advantages. It demonstrates excellent specifications, for example, such:

• Durability;
• wear resistance;
• environmental friendliness;
• safety;
• density;
• compressive strength;
• moisture resistance;
• frost resistance;
• not susceptible to decay;
• biological passivity;
• ease of installation (here is the article);
• soundproofing;
• low thermal conductivity;
• resistance to the harmful effects of chemical factors;
• the possibility of plastering, painting, pasting;
• unattractiveness to rodents (they hate this material, although there are exceptions).

Penoplex is ideal for insulating walls from the street and indoors, foundations, floors, ceilings, roofs. For such a luxurious fur coat, your house will say: "Thank you!"

Plastering to be or not to be?

Plastering is a type of finishing work involving the application of a mortar consisting of binders - cement, lime, sand, gypsum mixes to create a flat and smooth surface.

So, all this is understandable. But why do we need penoplex plaster? It's simple, the outer layer:

• Protects insulation from the destructive effects of mechanical, thermal, chemical and climatic factors;
• guarantees fire safety;
• improves heat-insulating and sound-insulating properties;
• smoothes surface imperfections;
• gives the room a wonderful appearance.

So is it possible to plaster Penoplex? Naturally. Even necessary.

Mixes for plastering: types and advantages

For facing the foam, decorative plaster is used. It happens:

• Acrylic;
• mineral;
• silicone;
• silicate.

Acrylic blend

Acrylic plaster is an artificial polymer raw material, it contains a mineral filler, coloring pigments, various additives, acrylic mixtures. The composition is distinguished by the richest color range, the widest choice of textures, a reasonable price and excellent technical characteristics - elastic, durable, vapor-permeable, moisture-resistant, etc.

Mineral composition

Facade mineral plaster is the leader in sales. The mixture consists of crushed granite or marble, Portland cement, lime. The components give the plaster excellent technical characteristics. However, the color palette cannot boast of an abundance of shades. Well, but it is inexpensive.

Silicone mixture

Silicone-based plaster can be applied perfectly to both facades and interior walls. It is durable, safe, biologically inert, durable and odorless. In addition, it is indispensable when working with the cellular structure of the foam. It is also presented in a wide range of colors and a huge variety of textures. But the price bites.

Silicate composition

Plaster based on liquid glass is not afraid of fungi, microbes, snow, rain, frost, heat, dirt. It resists the whims of climatic, chemical, thermal, mechanical factors. However, the color palette is scarce, but the price is acceptable.

Each composition is good in its own way. Do not forget that properly plastered walls, insulated with penoplex, will delight the eye for many years!

postroibanu.ru

General information

Penoplex is a good heat and sound insulation material. True, contrary to the assertions of many sellers, its thermal insulation qualities do not exceed the characteristics of foam. Of course, there is a difference, however, it is within the margin of error.

The advantage of penoplex is that it is stronger. However, at the same time, its surface is smoother, which requires a special approach to plastering. In particular, it is required to use a reinforcing mesh, an adhesive primer of the "concretecontact" type, and a special adhesive as a plaster.

You can often hear from home craftsmen that they successfully plastering penoplex ordinary plaster and without mesh. However, more often than not, such work has to be redone. Even if the composition grasps on such a surface, then very quickly it will begin to crack and flake off, so you should not risk it.

Plastering technology

Penoplex plastering process includes the following steps:

• surface preparation;
• reinforcement;
• decorative plastering and painting.

Below we will take a look at all these stages.

Training

So, before plastering penoplex, you must perform the following steps:

1. first of all, it is necessary to fill in the gaps between the insulation plates, which may appear during its installation. To do this, you can use polyurethane foam or special foam for insulation systems, for example, Ceresit CT-84. The cost of a can (850 ml) is ~ 600 rubles;
2. then you need to make sure that the surface covered with foam is flat. To do this, you can use a long rule and building level... All protruding areas should be rubbed with a special float.

At this stage, it is often required to deepen some of the caps of the umbrella dowels below the surface of the insulation. If you can't hammer them in, you need to cut off the cap with a clerical knife and drive another dowel next to it, having previously drilled a hole for it;

1. at the end of the work, the surface of the insulation must be primed with the composition "Betonkontakt", for example, from manufacturers such as Ceresit, VIOLUX, Feidal or others. On average, the price of a primer is 700-1000 rubles for 15 liters.

Before applying, the composition must be shaken and poured into a flat container. Then it is necessary to moisten the paint roller in the liquid, squeeze it slightly and apply the primer to the surface with an even layer, avoiding drips and accumulation of liquids in individual areas;

1. after the surface has dried, the primer is applied again.

Advice! If there are wide enough gaps between the sheets of foam, they can be filled with debris of insulation.

This completes the process of preparing the penoplex for plastering.

Reinforcement

The next step is reinforcement, which is done in this order:

1. before plastering the penoplex, cover the dowel caps and other recesses in the heat insulator;
2. then you need to glue the perforated aluminum corners to the outer corners. The glue is used the same as for gluing the mesh - Ceresit ST 83, Glims KF, KREISEL 210 or others. The average cost of the compositions is 350-600 rubles per bag of 25 kg;
3. then it is necessary to cut out the fiberglass reinforcing mesh, taking into account the fact that the canvases are glued overlapping each other about 10 cm, as well as with a twist at corners of about 10 cm;

1. then an adhesive composition with a thickness of about 3 mm is applied to the surface. In terms of consistency, it should be slightly thinner than the manufacturer recommends. The fiberglass mesh is immediately glued to the treated area using a wide spatula or bevel.

It is more convenient to work from top to bottom. At the same time, a small section of the wall must be treated with glue so that it does not have time to grab before the mesh is glued;

1. after gluing the mesh, another layer of glue is applied to the surface, which is leveled with a wide spatula. In fact, it acts as a rough plaster.

Advice! If the fiberglass mesh is stiff enough that it cannot be folded neatly at the corners, then liquid glue should be applied to the folded area, as a result of which the canvas will become more elastic.

Finishing

As a rule, the walls are insulated from the outside, so the instructions for finishing the penoplex look like this:

1. first of all, two layers of primer are applied to the surface again;
2. then, with the help of a wide spatula or a bevel, after the soil has dried, decorative plaster is applied;
3. when the plaster begins to set, it is rubbed with a small one;
4. after the decorative plaster dries, most often the surface is covered with a water-dispersion facade paint.

This completes the process of plastering the penoplex with your own hands. I must say that sometimes insulation is performed indoors. In this case, after reinforcement, an ordinary putty is applied to the surface, and then decorative trim For example, wallpaper is being pasted or walls are being painted.

Conclusion

As we found out, the process of filling the foam is quite simple. The main thing is to have some skills in working with tools such as a spatula or a beater, and also to follow the sequence described above.

The video in this article contains Additional information on the topic of plastering penoplex. If after reading the material you have any questions, you can ask them in the comments, and we will be happy to answer them.

nashaotdelka.ru

Do I need to plaster

The structure of the penoplex makes it a rather tough material, but it is not enough to withstand installation. exterior decoration... Under mechanical action, it is easy to wash it, which will reduce the insulation layer. With prolonged heating of the foam, which consists of polystyrene granules, emission of harmful substances can begin. In this case, the plaster will provide an additional layer of foam, which will prevent this process. Continuous exposure to ultraviolet rays, coupled with changes in temperature and humidity, can render the insulation unusable without it having to be finished. A layer of plaster will additionally protect the penoplex from the possibility of fire when exposed to a fire source from the outside.

How to plaster

Manufacturers who are engaged in the manufacture of adhesives for gluing penoplex also made sure that a special mixture for plastering was released. Penoplex facade plaster can be purchased from Stolit, Ceresit and Ecomix manufacturers. On the packaging of each product, instructions are given on what proportions should be for plastering penoplex. These guidelines must be followed in order for the mortar to achieve the required strength. For mixing, it is better not to use improvised means, but to use a mixer, it will allow you to achieve high uniformity. For different applications, the glue must have a different consistency. When installing the mesh, its density should be higher, and when leveling it should be lower.

Preparatory stage

The surface of the insulation is very smooth, therefore, before plastering the penoplex, it is necessary to do some preparatory work. The first step is to carefully examine the seams of the penoplex. During the installation process, they had to be filled with adhesive. If this has not been done, then you need to walk and seal them with foam. Ceresit CT-84 would be an excellent option, but regular polyurethane is also suitable. This important stage, if it is not observed, then the finish may crack over time due to the presence of voids. The next step is to monitor the flatness of the plane. The wall should not have drops and protrusions. To verify this, you need a rule with a length of 3 meters. It must be rearranged in different points watching the drops.

If there is a protruding fungus, then it is necessary to try to drown it by tapping. If it is impossible, you will need to cut off his cap and hammer another one next to it. If there is a convex part of the insulation itself, it is necessary to clean it with a float. To increase the adhesion of the glue to the insulation, you need to make it a little rough. To do this, you can use various available tools. Simply put, it needs to be scratched. Before plastering the penoplex, a primer is applied. Shake it well and pour it into a convenient container where the roller can fit. The application layer should be such that there are no drips. After the first layer has dried, another layer is applied.

Installation of the mesh

An important component that can give the required rigidity to the insulation is a special mesh. Therefore, it must be fixed before plastering the penoplex. It is necessary to acquire one that has sufficient resistance to the effects of various building materials... The cells in it should be as small as possible, since such a mesh has great resistance to mechanical stress. In addition to the mesh for the penoplex, you will need metal corners that are mounted on the outer corners. First of all, the glue is applied to the caps of the penoplex mounts, they should not interfere in the process.

For glue application you need a wide spatula and notched trowel... Using an ordinary spatula, the surface is covered with an adhesive. Its layer should be no more than 3 mm. Penoplex must be completely covered with no gaps. After that, it is necessary to walk a notched trowel along the plane. It will allow you to remove excess glue. The mesh is cut depending on the length and height of the surface to be plastered. It is applied to the glue and pressed into it a little using a conventional spatula. To do this, a spatula just needs to be carried out from above. The solution that was applied to the penoplex through the cells will be forced through and form a homogeneous mass, covering the top of the mesh.

Individual mesh strips are stacked without gaps. There should be an overlap of at least 10 cm between them. It will be more convenient to work if you apply no more than one meter of the composition at a time. Metal corners for putty will simplify the processing of corners. If their use is not planned, then you will need to cut off a strip of mesh with a width of 30 cm. It is bent exactly in the middle so that a rosary angle is formed. After that, it is applied and recessed into the composition. After covering the entire surface, you must wait until it is completely dry. A video about gluing the mesh can be seen below.

After drying, the surface is trowelled. To do this, you will need special polishers on which you can attach sandpaper. In a circular motion, which will be directed counterclockwise, it is necessary to process the entire wall. For personal safety, it is better to use goggles, gloves, and a respirator that will prevent dust from entering the respiratory tract. The next stage of external plastering of the foam is the application of a leveling layer. For this, the same composition is used on which the mesh was glued. The layer is also no more than 3 millimeters, but you need to work with a straight spatula.

Final stage

After one day after applying the leveling layer, it is necessary to repeat the grouting procedure. You shouldn't wait too long for this process, because the composition will be quite solid and the task will become more complicated. In this case, you should be careful that no grooves are formed on the plaster for the penoplex during the grouting process. After grouting the plaster, which is applied to the facade using penoplex, it is necessary to prepare the surface for further finishing. For this, the plaster is covered with a primer. His choice will depend on how the foam will be finished further. If desired, paint the surface with water-based paint for exterior decoration you will need a soil that will bind all the grains of sand, forming a perfectly flat surface.

If the plans include the presence of a bark beetle or other type of finish, then the primer should contain quartz additives. They will contribute to the perfect fixation of the finish. It is necessary to apply a primer on the plastered insulation penoplex so that there are no drips. At proper preparation surfaces with a foam finish will not be difficult. The composition is mixed with water in the required proportions. After that, it is applied with a spatula to the wall. Its layer will depend on the size of the constituent grains. Grouting or finishing the finish is done using various tools. The pattern to the bark beetle, for example, is given by the direction of movement of the trowel.

After drying, the finishing layer can be covered with paint or a protective layer that will prevent it from cracking. Interior decoration is carried out according to the same algorithm, but finishing layer for example, tiles can protrude. It is necessary to glue it on a special glue. It is advisable to choose the same manufacturer as the glue that was applied to the penoplex. Or be sure that various compositions will interact well with each other. A video about finishing can be seen below.

bouw.ru

Mixtures for the facade, and glue for expanded polystyrene (aka penoplex) - https://goo.gl/rmTVxf
How to plaster penoplex!
New about expanded polystyrene, it is especially important to read the fixed comment in the discussion ... Several issues ago, we told in great detail how exactly to install the foam sheets ( extruded polystyrene foam) on the walls inside our Brezhnevka. Now we are in a hurry to your computers with video # 91 with a sonorous title - "How to Plaster Penoplex"!
I want to draw your attention right away, friends, that the title in the case of this new video is rather a little arbitrary. After all, it will rather be the smearing of the reinforcing fiberglass mesh (aka Strobi) on the penoplex (modified polystyrene), and then putty on it with special glue for polystyrene and advanced polystyrene foam. But the name "How to Plaster Penoplex" personally seems to me to better reflect the essence of what will happen on the blue screen. So it’s right!
The essence of the video is simple:
- inside or outside the building-house you want to plaster penoplex - there is only one technology.
- we will also show how to plaster expanded polystyrene (extruded foam) (with a special glue and a wide spatula).
- Consider the little tricks of this kind of plaster too.
Max and I know how to properly plaster the mysterious penoplex on the Strobi grid, but you just have to find out today!

Our entertainment and finishing channel-find "PiK", has already shot the second video about Penoplex, the brother of Styrofoam - https://www.youtube.com/channel/UC5wB...
We know how and how to fix the extrusion penoplex, now we learn the basics of its plaster in the VK group - https://vk.com/guysstone
Kraftool facade spatulas for foam insulation outside the facade - https://goo.gl/mW8Ur9

But if you want to take an in-depth course on how to plaster penoplex, both outside the room and inside your home, then watch another video:
No. 10 How to prime the walls (including after installing the penoplex) - https://youtu.be/EbtnCkju8TE
No. 59 How to plaster walls (the option with plaster on beacons is also suitable for penoplex) - https://youtu.be/RpzQN3jwwrY
No. 87 How to fix penoplex in front of the plaster on the Strobi reinforcement mesh - https://youtu.be/YrD-SJ2kPJE

Okay, YouTube! How to plaster penoplex is no longer a problem, and how to plaster it is not a question!

How to plaster polystyrene!
A few issues ago we told in great detail exactly how to carry out the installation Penoplex sheets (extruded polystyrene) on the inside walls of our brezhnevki. Now, however, we hasten to you in computers with video # 91 with the sonorous name - "How to plaster penoplex"!
Just I want to draw your attention, my friends, that the name of the case with this new video is slightly more conventional meaning. After all, it is more likely fix fiberglass mesh (aka STROBE) on penoplex (modified polystyrene), and then plastered it on a special adhesive for foam polystyrene and advanced.

www.youtube.com

How to plaster penoplex?

First, let's figure out what mixtures are used for plastering foam. Most often for this purpose, universal mixtures are purchased from such leading manufacturers as Ceresit, Ecomix, Stolit. We prepare the mixture, strictly following the instructions, the only nuance that should be taken into account is the consistency. For gluing the plaster mesh, the consistency of the mixture should be slightly thinner than the manufacturer advises.

For the leveling layer, the mixture is made so liquid that it practically flows off the trowel. For gluing the mesh, approximately 4 kg of the mixture is consumed per square meter. The leveling layer requires 6 kg of mix per square meter.
When your solution is ready, you can proceed directly to the plastering process itself.

Penoplex plaster, process

Wall plastering is a process that involves starting the walls and leveling them using wet mixes. The work process itself can be divided into several stages.

Stage one. Training.

At this stage of work, you should make a thorough grouting of the foam in order to avoid any irregularities and depressions and bumps. You should not rush, because the success of the whole process will depend on how well you do your job.

Second phase. Bonding plaster mesh - reinforcement. This is a very important stage and if you skip it, then in the future, a layer of plaster applied directly to the penoplex, without the use of a facade mesh, will undergo various cracks and will be short-lived.
On the prepared surface of the penoplex, apply a layer of adhesive mixture, no more than 2-3 ml thick, and glue the mesh onto it.

Do not forget about some of the nuances that are very important when performing the work of this stage:
- the mesh should be pressed into the applied universal compound no more than half, while the entire mesh surface should be completely immersed in the adhesive mixture. The mixture should be applied in stages. This is usually done in strips no more than one meter wide (the standard width of the facade mesh);
- the facade mesh should be glued only to a fresh composition, while it should be trampled down with a smooth trowel;
- the strips should overlap each other. The allowance must be made at least 10 cm. Particular attention must be paid to pasting the corners, from which it is advised to start work on reinforcement. In order to properly glue the corners, take a strip 30 cm wide and about a meter long, bend it in half to form a clear ridge in the middle, and in this state, attach it to the corner and press it into the adhesive composition.

Fourth stage. After your reinforcement layer is completely dry, you need to take care of grouting over the entire surface of the facade mesh. To do this, you need to arm yourself with a plastic grater with an emery cloth.

Rubbing should be done in a circular motion, without applying any special efforts for this. The direction of movement is counterclockwise.

Fifth stage: apply a leveling layer. For this purpose, the same universal mixture is used as for reinforcement. Apply the mixture with a spatula, evenly distributing it over the entire surface. In this case, the thickness of the layer should not exceed three millimeters.

Sixth stage. Finalization
This stage is the final one in the process of plastering the foam. It consists in grouting the entire surface. This should be done in the same way as grouting the reinforcing layer, and also only after the leveling layer is completely dry. Here it is important to remember the drying time of the mixture.
Grouting should be started at the end of one day. In the cold season, you can give extra time. It is also not worth delaying the process, since usually at the end of four days the mixture can harden so much that it will simply be impossible to grout.

After you have completely rubbed the surface of the walls, the plastering process will be completely completed and you can proceed to the next type of work - putty.

Can Penoplex be putty?

Putty is the finishing of walls using special putty mixtures. Most often, for these works, acrylic or powder putty is used, intended for facade work.

What finishing fillers are there?

All the putties of the Ceresit brand have proven themselves the most, but if you trust another manufacturer, you can also use putties from another company. The putty should be selected based on the surface on which it will be applied. For wall putty, there are both powder mixtures and pasty. Paste mixtures, in turn, are subdivided into acrylic, adhesive, silicone, latex, oil and combined. For penoplex, acrylic and powdery putty has proven itself well.

When choosing a putty mixture for facade work, first of all, you need to pay attention to the binders in it, and how high-quality these substances are. Depending on the quality of the bonding element, the putty can be very resistant or, conversely, unstable to various weather conditions: cold, damp, heat, frost.
So, for example, if later you plan to paint the facade, then you can use a good quality Ceresit CT-225 putty, which is a good base for painting and has such qualities as frost resistance, impact resistance and moisture resistance. Having picked up a high-quality putty, you can be sure that over time your finish will not crack or crumble.

Also, when choosing a putty for your facade, consult with the seller so that he can help you choose the one that is moisture resistant and not afraid of temperature changes, otherwise you will simply waste money and time on outdoor work. It is important to remember that those putties that are intended for interior work are completely unsuitable for the facade, so you should not save money so that you do not have to redo the work.

The process of applying putty on the wall. Putty preparation

If you decide to use a powder putty, then first it should be diluted. To do this, put water in a bucket (a little less than half) and carefully pour in the powder, stirring continuously with a mixer. The consistency should be roughly similar to mashed potatoes.
After the mixture reaches the desired consistency, it should be left in a calm state for 5 minutes, and then beat again and you can start working. Acrylic plaster is applied to the wall immediately without preliminary preparation.

The process of applying putty on the wall

To apply the filler, use a very wide spatula, on which the mixture is placed with a small, narrow spatula that fits freely in the bucket. When finishing, it is very important that each new finishing area merges with the previous one, previously putty. The joints should be almost invisible, so if you are not sure of your skills, then it is better to invite a specialist for this work, who will do everything quickly and efficiently.

Before applying the putty, do not forget to treat the wall with a special primer, which will give additional waterproofing. The layer of putty to be applied should not exceed 5 ml; after it has completely dried, the entire surface should be trowelled. Rub in a circular motion counterclockwise, using an abrasive mesh. Do not forget that grouting should be done no earlier than 3-4 hours after applying the mixture. After finishing grouting, you need to apply a primer again, this will help get rid of dust particles on the surface of the walls and make the surface of the facade perfectly flat.

Upon completion of the drying of the primer, the next process of work begins - painting.

Can Penoplex be painted? How to paint?

The finishing of the insulation will be more durable and aesthetically pleasing if it is subjected to the dyeing process. But be careful: not all putties benefit from staining, so read the instructions on the packaging of the applied putty.
In the instructions, you probably should find all the answers to your questions: is it possible to use paint, and what composition should the paint have in order to ideally match your putty. When choosing a paint, one should also take into account the chemical characteristics of the insulation itself, since not all paint is suitable for penoplex. Only if you choose the right paint, taking into account all the nuances, your facade will be durable and of high quality.

Choice of paint

Some facade paints are capable of destroying penoplex, so the choice should be made, guided, first of all, by the physical and chemical characteristics of the insulation and paint.

Which paints should you not choose?

For penoplex, paints that contain the following substances are not suitable: benzene, toluene, xylene, acetone, coal and polyester resins, gasoline, kerosene, drying oil.

When dyeing penoplex, in no case use solvents such as acetone, kerosene, gasoline, white spirit, all these substances practically corrode the insulation.

Penoplex paints
1. Mineral paints. They contain lime and cement, which are absolutely safe for insulation, and therefore they can and should be used. Mineral paints do not contain any of the harmful substances, so that the facade of the building will not suffer at all.
2. Facade material based on silicate glass. The composition of this material also does not pose any threat to the decoration of the building and, of course, to the insulation.
3. Water-based paint for exterior work. Paints in this category are also not prohibited for penoplex, the only nuance worth remembering when choosing a water-based paint is that it should be designed specifically for facade work, only in this case it will be highly resistant to moisture and other weather influences.

Water-based paints have the following advantages:

- one of the most significant advantages is their environmental friendliness. They are completely safe for the human body, so no additional precautions are required when working with them;
- the surface covered with them has increased resistance to aggressive environmental factors;
- have a water-repellent effect;
- are resistant to dirt;
— low level water absorption, this advantage is also a very significant factor when choosing paint for foam;
- a large assortment of colors, which makes it possible to paint the facade of the house in any color and shade;
- low cost. Thanks to this advantage, water-based paints are becoming more popular;
- the ratio of price and quality is also a decisive factor when choosing a paint.

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Penoplex features

Synthetic polystyrene foam products have been made for a long time, for over 70 years. Penoplex differs from traditional boards by its production technology, which uses extrusion. Blowing agents are initially added to the polymer to ensure an even distribution of the cavities throughout the mass. As a result, after extrusion, a structure with closed microscopic cells is formed, the size of which does not exceed 0.2 mm.

The main qualities of the slabs are as follows:

• low density;
• light weight;
• well-pronounced ability to retain heat;
• minimal tendency to absorb moisture.

With all its advantages, the material requires increased attention due to its high flammability and poor vapor permeability. Penoplex must be used correctly, taking into account the obligation to ensure good ventilation of the walls and the need for especially strict adherence to fire safety rules. To protect against external influences, plaster is applied to the penoplex.

Why plaster

Plastering is a necessary part of finishing work, allowing you to safely invest in thermal insulation without fear of its destruction in the future.

External plaster protects the facade from wind, precipitation that can damage the material. The internal plaster layer on extruded expanded polystyrene can serve as an additional decorative finish.

Penoplex is a durable polymer; nevertheless, under strong local mechanical loads, dents can form on it, due to which cracking on the sheets is not excluded. If the coating is plastered, its impact resistance will increase, and an additional layer of protection of the synthetic board from the action of UV rays will appear.

The heat-insulating coating of foam sheets has joints, which are usually sealed with polyurethane foam. To form a perfectly flat surface, to protect the seams from aging, plaster should be applied on top of the sheets and seams.

Required tools and materials

In order for the matter to argue easily and quickly, you need to think over everything in advance, collect the necessary materials, aids, tools.

There are different brands of plaster mixes, priming agents that have a similar basic composition, which does not exclude the presence of small features in the nature of impurities. For wall decoration, the room as a whole, it is advisable to stock up on a sufficient amount of material from one manufacturer. This will exclude the possibility of incompatibility of the mixtures, they will ideally be combined with each other in the work.

Advice! Prepare tools for mixing the plaster mixture in advance. There are many options: from an ordinary long wooden spatula or spatula to a drill with a special attachment. Find a good, comfortable spatula with an ergonomic handle that makes it easy to move around the plane.

To improve the adhesion of the penoplex to the pasty mass of plaster, the surface is treated with a metal brush or a needle roller. Roughness will improve adhesion, ensure reliable adhesion of the composition to the insulation.

Finishing outside corners requires special perforated corners and levels to verify correct installation. It is imperative to buy a reinforcing mesh, without which all work loses its meaning. In some places, you will need glue to fix it. Study the composition, recommendations for use in advance. To grout the surface, you need to purchase a plastic float with sandpaper. It is convenient to carry out the final finishing with a roller with a small dense pile.

Types of mixtures

Strength is required from the foam plaster for the facade; it should not change under the influence of precipitation. There are compositions for universal and highly targeted purposes. When choosing, one should take into account all possible types of loads on the coating.

Multifunctional tools

The universal composition can be used at several stages of finishing work. With such plaster, you can fix the penoplex to the wall, then fix the reinforcing mesh on the outside on the sheets. The universal mixture can be used not only for plastering, but also for priming surfaces. The agent costs a little more than formulations of a strictly directed action. The higher price is compensated by the possibility of multifunctional use.

Mineral remedies

A cement mixture is popular with craftsmen, which includes sand and a small amount of polymer filler, which improves the fixing of the material on the surface. Often such plaster is called mineral because of the predominant amount of inorganic components. It is necessary to prepare the mixture in accordance with the recommendations of the manufacturers, which often contain instructions on the need to add PVA glue to the mass. If the introduction of additional components is not stipulated in the accompanying documents, there is no need to do this on your own. Some plasters contain gypsum and stabilizers. Such mixtures are very plastic, they stick to the penoplex more slowly.

If there is not enough money for the purchase of finished plaster, you can make the compositions yourself from two components:

• cement and lime;
• clay and lime;
• clay and cement;
• clay and gypsum.

This is not the best solution, especially since the type of clay is fundamental to the quality of the plaster. With the right clay, good quality cement and hydrated lime, the mixture can be quite successful. Mineral compositions can be used to plaster the facade insulation from the outside and putty on the penoplex inside the room.

Acrylic

Mixes based on acrylic polymers are intended primarily for finishing areas located in areas of high humidity, high mechanical stress. The cost of polymer plasters is higher than that of mineral compounds, but their high resistance to external influences justifies the difference in price. Acrylic plasters are highly elastic, which makes them easier to work with.

Silicate

A successful combination of properties is demonstrated by silicate plasters, which do not contain polymer additives, therefore, do not electrify. Silicates pass steam well, do not degrade under the influence of atmospheric moisture, and do not undergo microbiological degradation. This is the most acceptable mixture with which you can plaster both external and internal walls. It is enough to competently process the surfaces once and you can have no problems for many years. The silicate material is environmentally friendly, does not contain harmful impurities, and guarantees the cleanliness of the adjacent air space.

Famous manufacturers

Products from different manufacturers are presented on the domestic market of plastering materials. The most common are the following three trademarks:

• "Ceresit";
• Ecomix;
• "Stolit".

There are imported products and mixtures of other domestic companies, the characteristics of which are always indicated in the attached instructions.

Means "Ceresit" are presented in a large assortment, including all types of plaster: silicate, silicone, acrylic, cement. The products have good performance characteristics, are easy to use due to their elasticity, and are durable.

Ecomix plasters can be used for exterior work or interior walls of premises. The compositions are characterized by environmental safety, moisture resistance. Facade finishing works using plaster from this company should be carried out in the warm season, at temperatures of at least +7 ° C. Mixtures can also be used to eliminate defects: chips, cracks, deformations on old surfaces covered with plaster for a long time.

The assortment of the Stolit company is represented by compositions based on cement, to which stabilizers and modifiers have been added. Due to this, the plaster has high temperature resistance, does not react to high and negative temperatures, and adheres well to the penoplex.

Preparation of the solution

Recommendations for the preparation of commercially available mixtures are contained on the packaging and accompanying documents. When buying, you can get additional advice about the features of the funds, the specifics of their preparation.

When making plaster yourself, you should remember the main points. Components taken in accordance with a specific recipe must be sieved and mixed well. It is advisable to check the stickiness of the mass before starting work. If the plaster sticks strongly to the trowel, it will be difficult to apply. In this case, the amount of filler should be increased. If the mixture does not stick at all, the amount of astringent should be increased. Using the method of samples, you should select the average fat content of the mixture, because if the viscosity is excessive, the plaster layer may crack after drying. Insufficiently sticky mixture is not very convenient to work with, forms a layer with low strength.

Installation of reinforcing mesh

Before applying a layer of plaster, penoplex must be reinforced with special nets. Polymeric cellular fabrics with a density of at least 140 g / m2 and not more than 160 g / m2 are best suited for reinforcement. The general rule is that the smaller the cells, the better the reinforcing properties. A high-quality mesh with suitable characteristics helps to level and strengthen the surface of the foam.

Note! If the use of cement-based plaster is planned, the mesh must be inert to an alkaline environment.

Reinforcement must start from the corners. To do this, cut strips from the mesh, the width of which should not be more than 35 cm, and the length is determined by the length of the corner. The strip is folded in half lengthwise, the composition is applied to the penoplex for fixing and the mesh is pressed against it.

Reinforcement of the entire wall is performed in a similar way. First, a layer of fixing mixture (plaster) is laid, then the mesh is pressed against it, smoothed and made sure that it is fixed. The reinforcing fabric should be overlapped, because the areas not covered with a polymer mesh will stand out noticeably against the general background. On top of the cellular coating, a thin layer of the fixing mixture is applied, which ensures its snug fit, strong fixation.

Grouting and leveling

A quality wall finish cannot be rushed. The reinforcement layer must be completely dry before starting the next stage of work. For final drying in winter, knocking may be needed; in summer, 4 to 6 hours are enough. When the coating is completely dry before it can be plastered, the surface must be trowelled thoroughly.

This physically demanding job is done with an emery-coated plastic float. Grouting is carried out in a circular motion over the entire area until the surface becomes evenly rough.