Insulating plaster: application technology. Wall insulation from the inside with warm plaster

If you pay attention to the multilayer structure that you have to create indoors or on the facade of buildings to keep them warm, there is always a desire to simplify it. There must be modern materials that will help ease the work of plasterers and finishers, while increasing the speed of work. The main thing is that their quality does not suffer.

How to replace, for example, the wall insulation with polystyrene boards that has become common? The way out was found - insulating plaster. The process, it must be said right away, is more laborious, but the effect of it is much higher. The use of building dry mixes for outdoor work has again shown a wide range of applications, and it is not difficult to purchase them today in stores and on construction markets.

What can be offered

In order to replace 2 standard insulating layers, consisting of a fixing mesh and insulation, with insulating plaster, there are the following ways:

1. Take a dry mortar, which is based on cement, but it should use perlite sand instead of the usual one. In addition, the composition should contain a powder of pumice, expanded vermiculite, expanded clay chips, sawdust or expanded polystyrene balls. These components give the plaster good insulating properties. Gradually, the sand is already being replaced with foam glass in granules.

1. Use special insulating plaster boards. They are usually used in construction not often because of mistrust. Many cannot decide whether it can really become an alternative to conventional insulation or a dry mix. Although manufacturers strongly advise this method of insulation, hoping that over time builders will believe in it.

Tip: if you want to significantly reduce labor costs when insulating walls, then use plaster insulation boards.

1. Make your own insulating plaster.

In principle, it is not so difficult to make it, the technology consists in mixing the following components in a dry state:

• clay;
• paper pulp;
• sawdust;
• cement,

in the ratio: 1:2:3:1/5 parts.

If you do not use cement, which is also possible, the plaster will turn out to be too loose and soft, but quite suitable for decorative work.

1. sawdust, where sawdust is the basis. This mixture can be made independently. Such mixtures should be used exclusively indoors, and during the drying period of the walls, ventilate them well for about 14 days.

1. In polystyrene foam, the leading role is occupied by polymer granules.

Tip: Apply insulating plaster to the surface in the same way as a regular plaster, using long trays and spatulas. Make movements slowly from the bottom up.

Where apply

Insulating plasters will be useful wherever it is necessary to insulate the internal and external walls of buildings, although the price of this material is not the cheapest.

It should be highlighted:

• thermal insulation and is not produced as often;
• sound insulation when applied outside or inside;
• processing of door and window slopes, which allows not only to insulate them, but also to give them a beautiful appearance;
• protection of sewerage and water supply risers from cold temperatures;
• thermal insulation of ceilings and floors.

Tip: do any construction work with a tool you trust.

Pros and cons

There are no ideal building materials, each of them has its pros and cons. In the case of insulating plaster, it should be understood that comparing it with ordinary plaster is simply inappropriate. For her, other methods of warming are more suitable. The advantages of the material include the speed of work.

Common scheme:

1. Install a fixing grid on the working wall.
2. Then attach the insulation.
3. Then do the plastering.
4. Finish the process with finishing plaster.

With insulating plaster:

1. Cover the work wall with insulating plaster.
2. Apply finishing plaster on top.

The fact is obvious.

A simpler scheme is obtained due to the fact that:

• the master does not care about the final appearance of the surface, due to which he can prepare almost 180 m 2 of the surface in a working day;
• reinforcing mesh is not installed. Use only on corners and in difficult places;
• there is no need to level the wall before applying the insulating plaster;
• the material has excellent adhesion, due to which it can stick to any wall, which is especially attractive to novice builders, for whom “adhesion” is the main stumbling block.

In addition, heat-saving plaster has good vapor permeability. Thus, the material is superior in this indicator to foam. It also lacks any "cold bridges" that are typical when attaching foam, when you have to use metal dowels.

So it turns out that the technology used today, which has been “brought to perfection” over many years, is a multilayer structure. At the same time, this material includes two layers in one layer - plaster and insulation.

Minuses

1. Weight. The mass of the layer has to pay for the speed of work, and it exceeds similar standard layers by 10 times, which requires the installation of a stronger foundation. The thickness of the layer will also be rather big - it exceeds, for example, from mineral wool almost twice.
2. Requires finishing. Such plaster is not a finishing one, which is applied on top after priming, or decorative plaster is used on top of it.
3. The cost of work. She, alas, is quite rather big for this building mixture.

Tip: use vermiculite insulating plaster when insulating hard-to-reach places and wooden floors, as well as where mold or fungus can appear, rodents and insects can start.

Technology

Below is a detailed process instruction:

1. Prepare the surface, for which remove the remnants of the solution and dust it. In special cases, a penetrating impregnation or mesh can be applied to the wall to strengthen the structure.
2. Moisten the treated surface liberally.
3. Prepare the mixture according to the instructions on the package. According to the recommendation, it will need to be worked out in 2 hours.

1. Apply plaster in layers up to 20 mm thick. Each subsequent one - no earlier than 4 hours later.
2. The final result of the work will be visible after 2-3 weeks.

Tip: use insulating plaster to insulate plastic windows, which in this case can reveal its potential.

Errors during operation

1. The mixture is poorly prepared.
2. The term of its use is overdue, no more than 2 hours.
3. Laying is carried out with a layer of more than 20 mm, due to which the mixture slides off the surface.
4. The previous layer is not dried before applying the next. It should be understood that in conditions of high humidity, in particular in autumn, the drying time increases.

Both old and modern houses do not have a high degree of thermal insulation. The reason for this is the thin walls of brick and reinforced concrete. These materials conduct heat quite well.

Over time, additional troubles are added to this - cracks in the walls, destruction of the finish and sealing of the joints between the panel plates.

The increase in the cost of utility bills makes residents of both private and multi-apartment buildings think about changing the situation for the better.

The condition of the walls of the house is of no small importance for creating and maintaining a comfortable microclimate in the interior. Walls must retain heat, be airtight and vapor-permeable. Facades of houses can be insulated both from the inside and outside.

External insulation is the most popular, as it does not imply a reduction in the internal useful area of ​​\u200b\u200bthe premises. There are various options for thermal insulation of facades.

One of the ways of effective and inexpensive thermal insulation is the use of special building mixtures. This is the so-called warm plaster.

Material Properties

Warm plaster is a dry mixture consisting of a hollow material, cement, glue and various plasticizers. Most of the volume of the mixture is occupied by the hollow material. Due to this, thermal insulation is carried out.

As a rule, the smallest granules of expanded polystyrene or foamed glass are used as hollow filler.

The addition of plasticizers allows the cured mortar to maintain a certain elasticity, which prevents the surface from cracking in severe frost or wall deformation.

Polymers provide mechanical strength to the finished coating. With their help, there is a reliable adhesion of the solution to the surface.

Cement is the binding ingredient for the constituent parts of the mixture.

Frost-resistant plaster of this type has the following positive properties:

• affordable cost;
• vapor permeability;
• low thermal conductivity;
• water resistance;
• strength;
• resistance to wall deformation;
• high degree of sound insulation;
• non-flammability;
• mold resistance;
• ecological cleanliness;
• long service life;
• resistance to high and low temperatures;
• high adhesion to all materials;
• low specific gravity;
• high speed surface treatment;
• no need for additional finishing.

Facade plaster after application to the surface has a presentable appearance. In terms of heat-insulating performance, it successfully replaces foam board coatings.

Warm facade plaster has certain advantages over other insulation materials.

These include the following:

1. Frost-resistant facade plaster after application to the wall creates a single monolithic layer. The absence of joints can significantly improve the insulating qualities.
2. The work on applying the solution is carried out in one stage. This allows the solution to be applied to the surface in one working day. This factor significantly reduces the cost of work.
3. No cold bridges. When treating walls with warm plaster, no fixing material is used, through which the cold passes to the main walls.
4. The simplicity of the technology makes it possible to carry out work on their own, without the involvement of hired workers
5. During surface insulation, deep drilling of the wall surface is not carried out. This prevents weakening of the structure of concrete panels and their destruction from vibration.
6. There is no need to level the surfaces before applying the mortar. Deficiencies are eliminated immediately, in the process of applying plaster, which is an excellent filler for cracks and holes.
7. A unique opportunity to carry out insulation, restoration and insulation work on complex surfaces. Due to the ability to stick to any material and retain its shape, any convex or concave surface can be covered with a solution of warm plaster.
8. Frost-resistant facade plaster has a composition that prevents the appearance and reproduction of insects, bacteria and fungi. In such a coating, mold will never appear, a colony of ants or a swarm of bees will not settle.
9. The environmental friendliness of the material allows it to be applied to the walls of glazed balconies. This is much faster and cheaper than traditional insulation using battens, glass wool and MDF panels.
10. The finished surface does not need to be sanded after drying. It looks like a rather fashionable and practical cover for a "fur coat".

Warming houses with this type of plaster is a fairly simple process that does not require the use of high technology. At its core, this is the usual work of plastering external walls.

The building materials market offers various types of mixtures for home insulation. For outdoor work, the most suitable is a frost-resistant mixture based on foam glass or expanded polystyrene filler.

Tools and materials

For work on the insulation of houses, goats, scaffolding or climbing equipment are used. Forests and goats can be rented. Climbing equipment will be more difficult, as it requires special skills.

For quality work, the following materials are needed:

1. Warm plaster. Frost-resistant facade plaster is sold in bags weighing 12 kg and 25 kg. The average consumption of the mixture per 1 sq. m base, with a layer thickness of 40 mm, is about 15 kg. As a rule, such a layer is sufficient to achieve the goal of insulation and waterproofing.
2. Liquid primer. It is purchased in the quantity necessary for high-quality processing of the base. Material consumption for all types of surface is indicated on the packaging.
3. Self-tapping screws and dowels for installing beacons. Bought at the rate of 6 sets per 1 sq. m.
4. Reinforcing mesh. It is necessary to strengthen the material when applying two layers with a total thickness of more than 40 mm. The mesh area should be 30% larger than the base area, taking into account its overlapping.

To insulate facades, there are enough tools that are in almost every home.

The list of such tools and devices is quite small:

• perforator with a set of drills for concrete and a mixer;
• hammer;
• screwdriver;
• steel spatulas 10 cm and 50 cm;
• notched trowel 40-50 cm;
• building level;
• paint brush;
• paint roller;
• roller made of dense material;
• plaster rule;
• goggles and gloves;
• container for mixing the solution (at least 30 l);
• buckets for solution;
• rope for lifting buckets.

In stores, you can ask about the availability of rental of construction equipment. Such specific devices as a plaster rule, goats or scaffolding may subsequently not be needed for decades, and they will take up quite a lot of space.

Preparatory work

Before carrying out the insulation of the house, it is necessary to prepare the surface of the wall.

This process includes the following steps:

• removal of protruding fragments of reinforcement, brick and concrete;
• surface cleaning from unstable old coating, paint and bitumen;
• clearing interpanel joints from stone chips and old insulating material;
• sealing large cracks and holes with facade sealant;
• degreasing and dusting the base for insulation;
• base treatment with a liquid primer;

After the primer dries, a thin layer of mortar should be applied to the base. This technique is used to improve the adhesion strength of the solution to the base. The layer thickness should be 3-5 mm.

In a day, you can start working.

Application of the solution to the surface must be carried out in dry, warm weather. The place of work must be fenced off with warning tape. First of all, scaffolding, goats and climbing equipment are installed.

This is done as follows:

1. The mixture is poured from the bag into a container. Given the high consumption of material (30-40 liters of solution per 1 sq. M), you need to knead at least 12 kg of the mixture. Do not experiment and be creative by adding other substances. This can only spoil it.
2. Water is poured into the container. The proportions for preparing the solution are indicated on the packaging of the material. With the help of a mixer inserted into the perforator, the ingredients are mixed at low speed. Depending on the amount of material, this takes from 5 to 10 minutes.
3. The resulting solution should be left alone for 8-10 minutes, then mix again. This is necessary to achieve complete homogeneity of the resulting material. After that, they can be used. Liquid warm plaster retains its working qualities for 3-4 hours.

It should be noted that at high temperatures, the time to use the finished solution can be reduced to 1.5-2 hours. And, at temperatures above + 35ºС, work is not recommended.

Laying is carried out in the following order:

1. Beacons are installed every 40-50 cm. This will make it possible to lay out a layer of mortar of exactly the right thickness. The recommended size of one layer of plaster is no more than 40 mm. Otherwise, the material will slip and deform under its own weight.
2. The solution is applied to the wall with a wide spatula. For ease of use, you can first apply the mixture with a smaller spatula. After processing 1-1.5 linear meters of the wall, the surface is leveled by the rule. Excess solution is collected in a bucket and reused.
3. Beacons are removed from the holes. The remaining holes are filled with mortar, the surface is leveled.
4. If the coating thickness is more than 40 mm, a reinforcing mesh is glued over the first level. It can be glued to the plaster 2 hours after application to the wall.
5. A layer of plaster is applied to the grid, its surface is profiled with a notched trowel. This will allow the second layer to firmly adhere to the first.
6. The second layer of plaster is applied in the same way as the first. Work is carried out after its hardening. This takes 1-2 days.

The treated wall is a gray, grainy surface. The owner of the house decides for himself what to do next - leave the wall as it is, or make it smooth.

For grinding, an abrasive mesh and sandpaper are used. After sanding, warm plaster hardens within 3-5 days depending on the thickness of the applied coating.

Finishing

You can finish the insulation applied to the facade of the house in various ways.

For these purposes, the following materials are used:

• frost-resistant paint;
• ceramic tile;
• fake diamond;
• facade thermal panels;
• granite chips.

Before finishing, the surface of the coating is primed and cleaned from dirt and dust.

The paint is applied with a roller or paint brush. A smooth surface is best painted with a roller. For a facade finished like a “fur coat”, you need to use a paint brush so that the paint penetrates into all the recesses.

Staining can be carried out in one, two or more steps until the color becomes even and uniform.

Ceramic tiles and artificial stone can be glued directly onto the plaster. Its surface is dense and strong enough to withstand the extra weight.

For gluing, a cement-based mixture or frost-resistant acrylic mastic is used. The seams between the tiles are filled with a special facade sealant. Hardened seams can be painted to match the color of the material.

Facade panels have a fairly low weight and excellent heat-insulating properties. They can become not only a finishing material, but also an additional insulation.

They are attached to the surface with an adhesive solution. Convenient tongue-and-groove fastening allows you to create a seamless connection of panels.

Granite chips are applied to the facade with a spray gun or manually. The basis of such a coating is a transparent varnish or paint.

In addition to undeniable beauty, granite chips will give the walls the properties of a very practical coating. On such a surface it will simply be impossible to write or scratch anything.

An insulated wall will serve the owners of the house for at least 25 years, protecting them from cold and dampness.

The construction of a warm and comfortable country house requires the solution of often very complex and contradictory tasks. For example, to get savings on materials and, at the same time, not to increase your costs in the future when operating the house, to make the house warm and comfortable. Help in solving such a problem can provide warm plaster.

A somewhat unusual name accurately reflects the purpose of the material. At its core, it is a building mixture with thermal insulation properties. It acquires them through the use of materials with low thermal conductivity. The composition of warm plaster is usually as follows:

• porous filler - expanded polystyrene granules, perlite sand, foam glass (expanded glass), etc.;
• a binder mixture, which is usually cement, lime, gypsum and mixtures thereof;
• polymer additives - plasticizers, water-repellent, air-releasing, etc.

Familiarization with the composition of warm plaster allows you to understand what its good thermal insulation properties are based on. This is due to the presence of a porous filler, literally stuffed with numerous air bubbles. And he, as you know, is a good heat insulator. So it turns out that after applying warm plaster to the wall, it turns out to be protected by an additional layer of heat insulator.

Properties of thermal insulation plaster

The advantages that warm plaster has are not limited to thermal insulation. The very composition of the mixture suggests what possibilities this material holds.

1. Fire safety. Warm plaster with mineral filler (perlite, vermiculite, foam glass) is not combustible at all and belongs to the NG class according to the classification system. The exception is heat-insulating plaster based on expanded polystyrene foam, it is combustible and belongs to group G1.
2. Ecological purity. Traditional heaters (mineral wool, polystyrene) emit harmful substances, which does not happen with warm plaster.
3. Multifunctionality. In addition to the heat-insulating coating, warm plaster can serve as a material for decorative finishing and be used as a topcoat. At the same time, it can be used to level surfaces.
4. thermal insulation characteristics. It should be noted that heat-insulating plaster is not inferior to traditional materials in its properties. A layer of such plaster 5 cm thick is equivalent to laying two bricks or two to four centimeters of polystyrene foam.
5. Physical characteristics. Heat-insulating plaster is much lighter than traditional plaster and during installation it practically does not have an additional effect on the foundation and walls. In addition, it has high adhesion to all wall materials.
6. Practical application of warm plaster- it is easy to work with it and it does not require special qualifications.

About fillers

In many ways, the properties of heat-insulating plaster are determined by the type of filler. As a filler can be:

1. Sawdust. When using them, the cheapest, but least effective type of warm plaster is obtained.
2. Styrofoam. Expanded polystyrene has good sound and heat insulation characteristics, has good adhesion. But it is a combustible material and at the same time it releases toxic substances.
3. Perlite is a material obtained from volcanic glass (obsidian) heated to 1100°C. At this temperature, obsidian begins to swell, becomes porous, a large number of air bubbles form in it, as a result of which the material acquires thermal insulation properties. Thanks to them, it finds application in various materials as an additive that provides these characteristics. One of the options for using it is called - perlite plaster.
   The disadvantage of perlite is its high hygroscopicity, which requires the use of additional materials to protect it during finishing.
4. Vermiculite. A mineral belonging to the mica group (the so-called intumescent mica). Materials based on it are able to withstand temperatures from minus 260 to plus 1200 degrees Celsius. When fired, it significantly increases in volume (up to 50 times), resulting in scaly particles. By its properties, vermiculite is similar to perlite, absolutely non-flammable and non-toxic.
   The disadvantages of the mixture, in which vermiculite is used as a filler, are the same as for perlite plaster - high hygroscopicity, which requires additional costs for protection.
5. Foam glass. This is foamed quartz sand, the structure of which includes closed glass cells. Foam glass is a waterproof and refractory material, very durable and does not shrink, does not need additional protection. However, heat-insulating plaster based on it is inferior in its characteristics to materials using perlite and vermiculite.

About application and protection

Warm plaster is used for interior and exterior. As already mentioned, due to the porosity of the filler, air bubbles act as a kind of insulation. Moreover, warm plaster is usually used as an additional element of thermal protection, and allows you to save on heating in winter and air conditioning in summer.

We are talking about the fact that insulating plaster will be applied in addition to the protection laid down during the design of the building. It is irrational to use it as the main defense. According to calculations, with a brick wall thickness of 51 cm, the insulating plaster should have a thickness of ten centimeters, with a smaller wall thickness, the thickness of the layer of heat-insulating material should be even greater.

However, when using modern building materials (ceramblocks, foam concrete), it is quite possible to reduce the required thickness of the plaster, since these materials, unlike bricks, themselves have good heat-shielding characteristics. However, even in this case, warm plaster will be useful precisely as an additional protection, increasing the overall thermal resistance of the building.

Options for obtaining heat-insulating plaster

For interior decoration, such material is convenient to use in places with a complex configuration, as well as to increase overall thermal protection. By the way, a mixture for additional thermal protection can be made independently. Warm plaster with your own hands can be obtained in the following way:

• it is necessary to mix three parts of sawdust and one part of cement;
• then add paper pulp two parts;
• add water;
• the resulting mixture must be mixed to the state of a normal solution.

If it is to be applied to wooden surfaces, then it is necessary to fill the shingles, otherwise the material will not adhere to the surface. A brick or concrete base must be pre-moistened before applying plaster to it.

The warm plaster obtained in this way, the reviews of which are very positive for those who have used the described method of obtaining, resembles cardboard in appearance. Its heat resistance is four times higher than conventional plaster

Another way to make warm plaster with your own hands is different from the one outlined, and gives a versatile material suitable for indoor and outdoor use. For this are used:

• cement, 1 part;
• vermiculite or perlite, 4 parts;
• plasticizer;
• water.

All components are commercially available, PVA glue can serve as a plasticizer, fifty to sixty grams per bucket of cement. Everything is prepared very simply. First, PVA glue is diluted in water, then it is necessary to mix dry cement with filler and add water with a plasticizer, achieving a thick but plastic mass.

After the mixture is ready, let it stand for 15 minutes, mix again and you can start working. Such heat-insulating plaster, the reviews of which those who used it are commendable, is successfully used in various versions for interior and exterior decoration.

industrial materials

However, in addition to the possibilities of self-production, you can use the finished product. The industry successfully produces various varieties of such material, for example, Knauf Grunband heat-insulating plaster. It is a plaster mixture (dry) intended for all types of work, based on sand, cement, filler in the form of expanded polystyrene (granules) and hydrophobic additives and has water-repellent and heat-insulating properties.

Another option would be Houncliff Insulating Plaster. It consists of a composite filler (produced by the manufacturer), basalt fiberglass, sand, cement, polymer binders.

Applying hot plaster

The mixture, such as warm Knauf plaster, must be diluted before application. Dilute the entire volume (bag), observing the dosage and mixing time indicated in the instructions. As a result, a plastic, lump-free mixture should be obtained. She is ready to go within a few hours.

The surface must be cleaned of dirt and dust before applying the material on it, it is possible to plaster at a temperature not lower than plus 5°C. Apply the finished mixture with a spatula and level (rub) with a grater or rule.

The thickness of the layer is not recommended to be made more than 2.5 centimeters, if you want to get a greater thickness, then you need to sequentially make several layers. The surface can be painted after two or three days. After 28 days, the layer acquires maximum strength, and the heat-insulating ability reaches its maximum value after 60 days after drying.

Warm plaster- this is a group of finishing coatings for exterior and interior work, combining leveling, hydro- and heat-insulating properties.

Composition, brands and GOSTs

The composition of warm plasters can vary due to the heat-insulating filler and the binder base. Loose fillers act as fillers materials with low thermal conductivity: expanded perlite, vermiculite, expanded polystyrene granules, foam glass. Some sources recommend sawdust, but they provide the worst quality coating, are prone to rot and fire, so they are excluded from the review.

There is also a special type of warm plaster used for radiation isolation of medical premises. barite plaster contains crystalline barium sulfate, an X-ray absorbing compound.

Warm plaster for outdoor use it is made on the basis of cement of the M-500 or M-300 brands. With a hydrophobic filler (foam glass, PPS, etc.), such a coating is not afraid of precipitation, temperature changes and ultraviolet radiation. Insulation plaster protects the main layer of thermal insulation from adverse weather conditions.

For interior decoration of premises, mixtures based on lime and gypsum, which are unstable to moisture, are used.

Perlite is presented on the domestic market heat-insulating plaster next trading stamps:

All of them correspond to GOST 31251 as materials with the highest degree of fire safety.

Release form

Ready mixtures are produced in dry form in packages weighing 7-30 kg. Depending on the formulation, they may include superplasticizers that improve the solubility of the cement and increase the plasticity of the solution. At home, such an additive is PVA glue or liquid soap dissolved in water. The consumption of the plasticizer is not more than 1% by weight of the cement in the mixture.

The shelf life of the mixed mixture is 30-90 minutes, so it is important to measure the volume of the prepared solution and the speed of work.

Specifications

Specifications warm plasters may vary depending on the filler.

Name	Meaning	A comment
Strength kg/cm2		An excellent indicator that allows you to use the mixture to seal gaps between bricks.
Bulk weight kg/m3		For a mixture based on PPS granules.
Shrinkage mm/m	Missing	After drying does not shrink.
Thermal conductivity W/mK		Inferior to synthetic and mineral heaters by 1.5-2 times, superior to the usual cement-sand mixture by 4-5 times.
Frost resistance, cycles		Average, offset by ease of repair.
Water absorption %		Additional moisture protection required.
Vapor permeability		Maintains an even microclimate in the room, there is no "dew point".
fire resistance		Based on mineral granules - non-combustible coating, based on PPS - low-flammable.
Cost rub./m2		Material consumption is 2-4 kg/m2
Soundproofing	Partial	A high soundproofing effect is given by mixtures with a fibrous filler such as the basalt mixture "Hauncliff".
Toxicity	Missing	Completely eco-friendly material.
Life time		Depends on the application. The outer coating serves less, the inner one is as durable as possible.

Unique qualities

The main advantage warm plaster is its high plasticity and adhesion (adhesion to the surface). It does not require perfectly even walls and performs an additional cosmetic function when decorating a room.

Allows you to isolate slopes, cracks and internal corners, where the installation of sheet and roll insulation is difficult. Fasteners that act as "cold bridges" for other materials are not needed. Application speed by professional workers reaches 100 m2 in 1 day.

Warm plaster combines environmental friendliness and durability, does not emit volatile compounds and dust.

Minuses

The main disadvantage warm plaster is its raw weight. The plastering process takes place in several stages, it is impossible to apply a thick layer at once. The work is carried out in 3-4 passes, maintaining the previous layers until a strong "seizure".

The thermal insulation qualities of the mixtures are average, and the price exceeds the more energy-efficient PPS. As the main insulation in Russia is not used, its thermal efficiency in our conditions is too low.

Application area

Warming of internal premises, ground finishing of walls. The use of such thermal insulation can reduce heat loss by up to 40%. Recommended material for additional thermal and sound insulation of walls and ceilings, window slopes, pipelines, sealing gaps.

Warm plaster for the facade used as a protective and decorative coating for the main thermal insulation: mineral wool, glass wool, foam plastic, PPS or basalt slabs. It protects the insulation from moisture, weathering, UV exposure and has a beautiful rough texture.

Mounting methods

Instructions for preparing the finished mixture are usually indicated on the package. To prepare a mortar at home, the binder component (cement, lime or gypsum), water and loose filler are mixed in a ratio of 1:1:4. The mixture is thoroughly kneaded to the consistency of thick sour cream, after which it can be applied to the cleaned surface.

Plastering of internal walls is carried out by beacons, the thickness of the applied layer warm plaster should not exceed 1 cm in one pass. If it is necessary to increase the thickness of the coating, then the first layer must dry, otherwise the plaster will fall off under its own weight. It is not advisable to make a layer thicker than 3 cm, the thermal insulation properties of this are reduced, and the load on the base becomes critical.

Facade insulation plaster applied in a thin layer: 3-4 mm in the first pass, not more than 1.5 cm in general after preliminary application and drying of the reinforcing layer.

Before applying warm plaster, the surfaces must be cleaned, weak layers of the previous finish removed, and a primer must be applied. The mixture is applied to the wetted walls and ceiling so that they do not draw moisture from the solution.

Warm plaster for the facade and interior decoration is applied with a minimum layer of 25-30 mm, a reinforcing frame is required. If a thicker layer is required, then the solution is applied in 2 doses. Full formation of the layer 4 weeks.

Important: It is forbidden to apply a layer of heat-insulating plaster at an air temperature below 5 ° C.

If the walls are not porous, smooth, for example, monolithic concrete or sand-lime brick, a reinforcing mesh is required. A layer of up to 30 cm is enough synthetic fabric, more - it is better to use a chain-link.

To comply with the geometry, work should be carried out along the lighthouses

For porous materials, warm plaster for aerated concrete, brick, foam concrete is laid in 2 stages. The first layer of a more liquid solution is required - a spray (1 hour cement: 1 hour sandstone: plasticizer according to the instructions: water to medium sour cream), this will help improve adhesion.

Insulating plaster for interior work under tiles is prepared in a special way. A polypropylene mesh is mounted on a quick-drying solution (glue), then it is nailed with long dowels to the load-bearing walls through the entire thickness of the leveling layer. And only after the glue has completely dried, you can tile the tiles.

Warm facade plaster is quite simply sanded, you can treat the surface with an abrasive, cover with primer and paint with exterior paint, based on silicone or silicate. Also with this type of finish, you can use all types of ventilated facade systems. But decorative plaster and tiles for outdoor work on warm plaster are not recommended.

Mortar grouting methods