Penoizol is a new insulation for your home. Do-it-yourself home insulation Installation for foaming walls

What is penoizol, how is it produced, types of insulation, technical characteristics, advantages and disadvantages, rules for choosing material and equipment for its application, brief instructions for do-it-yourself installation.

Description and features of penoizol production

The raw materials are urea resin, phosphoric acid, and a foaming agent. All components are mixed in precise proportions and placed into the device. Under the influence of compressed air, a white jelly-like mixture is blown out. It fills all the cracks and gaps and, when hardened, turns into lush foam.

The hardening process occurs in several stages. After 10-15 minutes the composition sets. After 3-4 hours the foam hardens slightly, but is still not strong enough. It receives final strength after 2-3 days.

The finished substance is polystyrene foam, but not solid, but semi-liquid. It is elastic, and any dents from mechanical impact on it are quickly straightened out. The air content in it reaches 90%. Outwardly similar to expanded polystyrene, but has smaller cells and has better technical characteristics.

Due to its characteristics, the material has become widespread in the field of insulation of already built private houses. They can be used to insulate walls, ceilings, roofs, floors, interfloor ceilings, and structures of complex shapes.

Main types of penoizol

• . The most common type. The convenience of its use lies in the fact that the composition is prepared directly on construction site. It is used for thermal insulation of erected structures, as well as for repair purposes. Foam can also be poured into confined spaces to create a mid-layer of heat and sound insulation in combined walls, sandwich panels, frame buildings. When carrying out repair work, liquid foam insulation is used to fill cavities, gaps, and cracks.
• Granular penoizol. It is also called thermal wool or foam insulation crumb. The manufacturing process consists of crushing the polymerized material into fractions measuring 10-15 millimeters. Such granules remain elastic. Such penoizol is advantageous in that when the polymerized insulation is crushed, the volume of the crumb doubles. Thus, you can save money when installing thermal insulation. This material is used for laying on the floor, interfloor ceilings, in interwall cavities, and on the foundation.
• Sheet penoizol. It is made by pouring a liquid semi-finished product into a special mold. After the mixture hardens, it is cut by hand or on machines into sheets required thickness. Next, the material is dried and undergoes a finishing mechanical treatment process. They can also insulate structures under construction. It is installed using dowels outside the building. The top is covered with a decorative covering, for example, siding. In addition, penoizol slabs are placed on the floor between the joists.

Technical characteristics of penoizol

1. Thermal conductivity of penoizol. This indicator is quite low for this insulation. The coefficient ranges from 0.031-0.041 watts per meter per Kelvin. To achieve good results It is enough to lay a layer of 10 centimeters of thermal insulation. Thus, the cost of the material will be recouped by saving money on heating within just one winter.
2. Soundproofing. This insulation has decent sound absorption properties. In percentage terms it is about 65%.
3. Fire resistance. Penoizol is classified in the flammability group G-1, that is, a material that does not burn well. The flammability group of this insulation is B-2. This means that it does not melt when exposed to fire. It was also classified into group D-1 for its ability to emit smoke and T-1 for toxicity. The use of a heat insulator is permissible within temperature limits from -60 to +80 degrees Celsius. At high temperatures, the material will simply evaporate without releasing toxic compounds. In an open fire, penoizol will emit ten times less smoke than polystyrene foam.
4. Chemical resistance. The insulation does not react to chemically aggressive environments or various organic solvents.
5. Moisture resistance. Penoizol absorbs moisture well, but just as easily gives it away without deteriorating its qualities. The material absorbs 1/5 of the moisture, subsequently evaporating it. To avoid the appearance of mold on the walls, it is recommended to create a ventilation gap. During the day, the heat insulator absorbs 10-20% of moisture.
6. Vapor permeability. Since this insulation is hygroscopic, the walls are able to “breathe”. Air passes freely through structures that are insulated with foam insulation.
7. Biological resistance. Penoizol insulation is not afraid of fungus, mold, and microorganisms. Domestic rodents do not gnaw holes and passages in it, and do not use it for food.
8. Strength. The material is particularly soft, so it adheres well to all uneven surfaces, completely filling gaps and crevices. Compressive strength at a linear deformation of 10% is 0.07-0.5 kilograms per square centimeter. When bending, this figure is 0.1-0.25, and when stretching - 0.05-0.08 kilograms per square centimeter.
9. Service life. The production of penoizol began not so long ago - only about 50 years ago. Therefore, it is possible to establish indicators of its durability only approximately. On average, manufacturers talk about 30-50 years of operation of the material.
10. Environmental friendliness. High-quality penoizol does not emit any volatile toxic compounds either during installation or during operation. Even exposure to fire does not cause the release of harmful smoke.

Advantages of penoizol

• Excellent thermal insulation abilities. A layer of penoizol 45 millimeters thick provides the same level of protection from cold as 75 millimeters of polystyrene foam and 125 millimeters of mineral wool.
• Resistance to many types of mechanical stress. When pressed, the elastic material will shrink and quickly return to its previous shape after the pressure is released.
• Resistance to temperature fluctuations and increased humidity. Temperature changes have no effect on penoizol, and the material absorbs water and quickly evaporates into the atmosphere.
• Good vapor permeability. Thanks to this quality, the walls and roof will not deteriorate due to condensation. Therefore, penoizol is recommended for insulation and insulation of wooden buildings.
• High adhesion. The heat insulator perfectly “sticks” to any surface, penetrating into the smallest cracks and holes. They are convenient for insulating structures of complex or carved shapes.
• Low cost. The material itself is relatively inexpensive. The price of penoizol is comparable to prices for mineral wool from famous brands. At the same time, you can save money by installation work with his own hand.
• Fire safety. When exposed to fire, the material does not burn, but only “melts,” releasing water, nitrogen, and carbon dioxide into the air.
• Versatility. Penoizol can be selected in any release form to suit any needs. They insulate almost all possible structures, preferably closed type.
• Absence of “cold bridges”. This quality applies to liquid and granular material.

Disadvantages of penoizol

1. The material shrinks. It is 0.1-5%. Only penoizol, which is poured between the walls and remains under pressure, does not have this property.
2. Low tensile strength. The low density of the insulation explains the fact that it can be torn quite easily.
3. High level of moisture absorption. In some situations, this quality can be considered a disadvantage. So, because of this, you should not use penoizol for installation under a screed, in underground part foundation. It is also recommended to use an additional layer of waterproofing.
4. The need for special equipment for applying liquid penoizol. It can be bought or rented. You can also hire a professional team.
5. Possibility of installation only at temperatures above +5 degrees. High-quality foam can only be obtained if temperature regime work.

Criteria for choosing penoizol and installation equipment

• There are two types of installations for installing penoizol. These are gas-liquid and pneumohydraulic devices. For example, for carrying out insulation work own home You can choose budget equipment GZHU “Mini”.
• You should not buy a unit with a built-in compressor without a receiver.
• The plunger pump of the installation must be made of plastic or stainless steel.
• Do not choose equipment for penoizol with a plunger pump that does not have a speed control function.
• Avoid purchasing equipment in which the foam generator is attached directly to the pump unit.
• Before buying penoizol, ask the seller to mix the solution in the right proportions and make some foam. The sample must be clean white. The resin should be the same color.
• The foam should not noticeably shrink or decrease in volume immediately after application.
• 15 minutes after spraying, you can pat the material with your hand. However, it should not break.
• There should be no large air gaps in the frozen foam insulation. The cells are ideally small and uniform.
• High-quality hardened penoizol breaks with little effort. Only minor fraying may occur along the edges.
• With slight compression, the material should quickly restore its original shape.

Penoizol price and manufacturers

IN different countries You can find different names for this material: Mophoterm (Czech Republic), Flotofoam (Great Britain), Animotherm (Germany), Isolezh (France), Insulspray (Canada), Iporka (Japan).

In Russia, the following large enterprises are engaged in the production of urea resins, which are the basis for penoizol: Tomskneftekhim LLC, Metadynea JSC, Togliattiazot JSC, Acron JSC, Karbolit JSC. The most common brand of this substance used by manufacturers is KF-MT. The price starts at 44 rubles per kilogram.

In addition, orthophosphoric acid is needed to form foam. Its price on the Russian market is from 170 rubles per kilogram. Foaming agent ABSC costs 170 rubles per kilogram.

Brief instructions for installing penoizol

We work with the material according to the following scheme:

1. We assemble the equipment according to the instructions.
2. We mix all the components of the future penoizol in a container, based on the proportions specified in the instructions for the equipment.
3. We prepare the surface - remove the remaining finishing materials.
4. We make lathing or install logs from wooden beams in increments of 50 centimeters.
5. Apply an even layer of foam to the surface so that it is flush with the edge of the sheathing or joists. We begin installation from the far end to the near end.
6. Let the layer dry.
7. After the penoizol has hardened, cut off its excess with a sharp knife.
8. After complete polymerization of the material, we lay a reinforcing mesh.
9. After this, you can begin plastering or painting the surface, if necessary.

Watch the video review of penoizol:

On the building materials market there are products with a cellular structure, an example is penoizol. Not only professionals create it with their own hands from scrap materials, but also ordinary people who have some experience. This is an inexpensive raw material that requires the use of simple equipment. For this reason, this insulation has a low cost.

Features and description of the material

The material is a modified foam. Its main characteristics are:

• resistance to fire;
• good thermal insulation characteristics;
• installation by spraying.

The basis is made up of three components. This is orthophosphoric acid, urea resin and a substance with foaming properties. The specified ingredients are mixed in exact proportions and the device is installed. A mixture resembling jelly is formed. She has white shade. Under the influence of compressed air, it moves outward. She:

• fills any space;
• ensures tightness;
• forms a lush foam after hardening.

Curing requires several steps. After application, the composition sets slowly. This takes approximately 15 minutes. After 3 hours the foam becomes a little hard. But this is not enough for it to fulfill its functions. The material takes its final form after 3 days.

In its finished form, it is not solid, but liquid penoizol that is formed. Some home craftsmen are trying to make it with their own hands, since it has good technical characteristics and is considered easy to manufacture. The material is elastic and easily restores its shape after any mechanical stress. It contains up to 90% air. Outwardly, it resembles expanded polystyrene, but differs from it in its fine cell structure.

The improved properties of penoizol have made it popular in the field of insulation of private houses. It finds application in thermal insulation complex structures, interfloor ceilings and gender.

Key varieties

There are various types urea foam. All of them are suitable for thermal insulation of buildings.

Main types:

1. Liquid penoizol. Received the greatest distribution. It can be prepared directly on the construction site, which is why it is very convenient. Material used for thermal insulation various designs, as well as for the purpose of repairs. Foam is poured into a confined space to form additional sound insulation in frame buildings. If we're talking about O repair work, penoizol in liquid form is used to fill cracks and gaps.
2. Granular penoizol. It has several names: foam insulation crumb, thermal wool. It is available in the form of elastic granules. During manufacturing, the polymer is crushed into fractions up to 15 mm in size. Volume finished material after grinding, it doubles in size compared to the original amount. This good option to save on installation costs. Granular penoizol is used to fill the cavity between walls and for laying on the floor.
3. Sheet foam insulation. The liquid material is poured into a special mold. After cooling, it is cut on special machines or simply by hand until it is given the required thickness. After this, they are dried and mechanically processed. The product is used to insulate buildings under construction. Installation is carried out using dowels with outside walls Decorative panels or siding are laid on top. In addition, the slabs are laid between the joists on the floor.

More information about the production of penoizol:

Penoizol can have different densities depending on the manufacturer. It varies on average from 6 to 35 kg per cubic meter.

Technical indicators

Compared to traditional insulation, penoizol has many advantages. The main characteristics worthy of attention include:

1. Thermal conductivity. The only low figure is 0.041 W/m/K. To ensure good performance, it is enough to lay a layer 10 cm thick.
2. Soundproofing. Noise absorption is at a quite decent level. It is approximately 65%.
3. Fire resistance. The flammability group to which penoizol belongs is designated G-1. Its flammability category is B-2. This indicates that it will not melt when exposed to fire. When high temperatures are reached, the material will begin to evaporate, without producing toxic substances. Under the condition of an open fire, 10 times less smoke is generated compared to polystyrene foam.
4. Resistance to chemical components. The insulation does not react in any way to aggressive environments. This primarily applies to solvents of organic origin.
5. Resistance to humidity. Penoizol has the ability to absorb moisture well, but it gives it away with equal success. The characteristics of the material are not affected. It is capable of absorbing up to 1/5 of moisture. Penoizol subsequently evaporates it. To prevent mold from forming on the wall, install a ventilation gap. The heat insulator absorbs approximately 20% of moisture throughout the day.
6. Vapor permeability. The insulation in question is hygroscopic, and therefore allows the walls to breathe. Air circulates freely throughout the structure.

Other characteristics include biostability. This means that penoizol is not afraid of fungi, pathogenic microflora, and domestic rodents. The material is soft, so it adheres closely to any uneven surfaces. It fills any gaps. With a linear deformation of 9%, the compression strength is 0.5 kg per square centimeter.

They started producing penoizol relatively recently, so we can only talk about its durability. It appeared on the market only 50 years ago. But manufacturers claim that it can last up to 30 years. Environmental friendliness is another advantage, since toxic compounds are not released either during installation or during operation.

Video on how to make a foam generator:

Disadvantages of the product

The main disadvantage of penoizol is that it produces sediment in the range of 0.1−5%. These indicators are better for the material that is located between the walls under some pressure. Other disadvantages include:

1. Low tensile strength. It's pretty easy to tear.
2. Increased moisture absorption. In some situations this is a significant drawback. This feature prevents the use of this type of foam in the underground part of the foundation and when constructing a screed. It is necessary to lay additional waterproofing.
3. The need to use special equipment. This is true for liquid forms of foam.
4. Installation temperature requirements. It should be above +5°C. High-quality foam will only be obtained if this requirement is met. In addition, liquid urea foam can release phenol-formaldehyde during installation. This is possible if it contains low-quality resin.

Selection criteria and equipment purchase

In most cases, liquid penoizol is chosen when it comes to domestic use. It is applied using special equipment. You can rent it to save money.

To produce penoizol with your own hands at home, you will need to equip the installation. You can arrange it from scrap materials. You will also need a compressor, molds for finished products, And additional equipment for lighting and ventilation. Budget options settings require a combination of:

• gas-liquid equipment;
• supply hose;
• set of taps;
• plastic barrels;
• compressor.

Urea resins and catalyst are mixed in the plant. They are placed there using a pump. There is compressed air. The main attention should be paid to the purchase of a pump, since it plays the role of a key element in production. Errors in dosage are especially important. A vortex or plunger pump is the most profitable and effective option. But in any case, foreign particles should not be allowed to get inside, as this will ruin the whole process.

More information about liquid foam:

List of materials and manufacturing technologies

Penoizol is made from foamed urea resin. Its production is characterized by efficiency, affordable price and speed of work. To make it you will need:

• polymer resin;
• foaming agent;
• hardener;
• specially prepared water.

There are several methods for producing penoizol, according to which sheets and mats are produced. The raw materials are poured directly on the spot where the insulation work is being carried out. If the filling radius of the equipment is large, the material manufacturing process becomes efficient.

You can use gas-liquid units that are easy to use and low in cost. For the production of insulation, installations of the Standard and Pena 2000 types are suitable. The first is characterized by an original dosage system. There is also a second generation system with an increased range.

Comparison with polyurethane foam

The two materials are often compared in terms of financial benefits and technical characteristics. Safety of use comes first in importance. Manufacturers claim that penoizol is neutral and safe for humans and animals. But at the same time, in a number of states in Canada and America there is a law according to which the use of urea foam for construction is prohibited. It is considered a potential health hazard.

This situation is also observed in some European countries. This is explained by the release of formaldehyde during the polymerization of liquid foam. You can reduce the likelihood of adverse effects by using a vapor barrier on inside walls.

As for polyurethane foam, there are no bans on it in any country in the world. It has all the necessary quality and safety certificates.

In terms of water absorption, polyurethane foam has minimal indicators, since its structure is porous and closed. It retains heat well and is equipped with protection against corrosion, mold and mildew. The appearance of condensation is excluded here. Despite the positive properties of penoizol, excess humidity may lead to its destruction. This can be avoided by installing moisture insulation.

In terms of strength and physical and mechanical properties penoizol is also slightly inferior. It is resistant to mechanical stress, but in this indicator it is still ahead of polyurethane foam. In terms of price, urea foam is an order of magnitude cheaper than polyurethane foam.

Use in winter

Work in winter period difficult, as problems are created due to low air temperatures. This factor adversely affects the structural composition of penoizol. Approximately 50% of the resin consists of water. For this reason, the viscosity of the material increases. Despite all these unfavorable aspects, penoizol can be poured under certain conditions. Its components must be stored in a warm room at a temperature of at least +15°C, for example in a garage.

The installation must also be placed in a warm place. You can install the cheapest tourist tent for this. The materials must be compactly rolled up, covered with a layer of plastic film, and then the fan heater installed. Before starting work, it is necessary to heat the solution to +40°C, and the resin to +20°C. For this, a regular boiler is used.

More information about do-it-yourself penozol:

If all these rules are followed, you can get penoizol that is no different from the material installed under normal conditions. It is unacceptable to keep it at a temperature below +15°C, as it does not dry well. The moisture it contains will freeze. It will fulfill its role as a heat insulator only with the onset of spring. Moisture that does not freeze in the spring will evaporate by itself. Dry foam will remain unchanged.

1. Why do you need to insulate your house?
2. Foaming walls with foam insulation
3. Insulation of ceiling and roof

A warm home not only makes your life more comfortable, but also allows you to significantly reduce heating costs. For this reason, many owners country houses They insulate walls, ceilings and floors with foam insulation. This insulation is relatively inexpensive and has impressive characteristics. In this article we will tell you how to properly insulate a house with foam insulation, what are the advantages of this material and what are the nuances in the insulation process.

In one of our previous articles we discussed in detail. Today we will talk about why it is necessary to insulate a house and about the process of insulating various surfaces.

Why do you need to insulate your house?

Before we move on to describing the process of insulating foam insulation, let’s first decide why we need to insulate a house? The answer to this question seems to lie on the surface, but not everyone is able to formulate for themselves clear criteria for the need to install insulation. So, let's outline the main advantages of insulating rooms with foam insulation:

• Saving on building materials

  A small layer of penoizol will allow you to significantly save on construction. Its thermal conductivity coefficient is significantly lower than that of the materials from which houses are traditionally built, plus it is significantly cheaper.

• Reduced heating costs

  Regardless of what type of boiler you use, gas or electric, insulating your home with foam insulation will significantly reduce your heating costs. The savings will allow you to short term discourage the purchase of insulation.

• Constant temperature and humidity

• Noise protection

  Penoizol is not only an excellent insulation material, it also has remarkable soundproofing properties. The material absorbs up to 95% of sound vibrations and is able to reliably protect your home from noise from the street.

These are some of the most important advantages that speak in favor of carrying out insulation work with penoizol. Insulation of the roof, walls and ceiling in a private house has its own characteristics, which let's talk about separately.

Foaming walls with foam insulation

In any country house, the outer walls are the largest surface area in contact with environment. If the material from which they are made has a high thermal conductivity coefficient, then this is where the main heat loss occurs. For this reason, special attention should be paid to wall insulation.

You can insulate with penoizol both externally and inner surface walls. If insulation is planned at the construction stage, then for these purposes a cavity is provided inside the masonry, into which the heat-insulating material is subsequently laid.

Insulating walls with foam insulation from inside the building has several significant disadvantages:

1. Insulation steals usable space.

   A layer of penoizol only 5 centimeters thick on the walls of a room of 20 m² reduces it by 0.5 m²

2. Formation of condensation.

   A layer of insulation retains precious heat inside the room, as a result of which the wall in contact with the environment does not warm up from the inside and remains very cold. During the cold season, when the temperature difference is especially large, condensation forms between the layer of insulating material and the wall. High humidity leads to the formation of fungi and mold that are dangerous to health in this place, and also contributes to the premature destruction of the masonry.

It is best to insulate with foam insulation from the outside. For this you can either use sheet insulation or pour liquid into the space between load-bearing wall And outer skin. This insulation method is ideal for frame houses.

The best thing about foam insulation in walls will be the reviews of those who actually insulated:

I insulated the air gap in a brick-lined house with foam insulation. I'm happy, gas consumption has halved. I checked all the walls with a thermal imager, everything is perfectly insulated without any changes. Regarding negative reviews, I can say the following - any technology can be screwed up with crooked hands. Contact trusted companies that guarantee quality and feel free to insulate.

Maxim Loskutov, Moscow

Most often, foam insulation is used to fill the interlayers between masonry structures. brick houses. To do this with outside, a network of holes is drilled in the seams between the bricks in checkerboard pattern, at a distance of 1.5-2 m from each other. Through them, the voids in the inter-wall space are evenly filled with liquid foam using a special foam generator for the production of penoizol.

There is no need to be afraid that hardened foam insulation will expand and destroy your walls. Unlike polyurethane foam, this material not only does not increase in volume when dried, but also shrinks to some extent.

IN modern houses Foaming of walls with liquid foam insulation occurs directly at the construction stage, which allows the foam layer to be distributed most efficiently and evenly. After drying in the wall, penoizol forms a uniform, seamless layer of thermal insulation that can reliably protect your home from the vagaries of nature.

Insulation of ceiling and roof

On average, the roof of a private house accounts for 10-20% total losses heat, which is why it is necessary to insulate both the ceiling and the roof itself. If the house has a classic sloping roof, a little preparation should be done before insulating the roof with foam insulation.

Taking into account the fact that liquid penoizol does not adhere well to steep surfaces until it hardens, in the process of insulating the roof it is necessary to create peculiar pockets, which are then filled with insulation. The work plan for laying liquid foam insulation is as follows:

1. From the attic side, a film is stretched between the rafters. The film should be selected sufficiently strong and secured construction stapler with good tension to avoid sagging when foaming with penoizol.
2. To be more confident that the film will not sag, you can fill a number of special slats.
3. The resulting cells are evenly filled with liquid foam insulation. During the process, it is necessary to ensure that the film does not sag. If a kind of “belly” is formed, this place should be additionally strengthened with a lath, since the protruding foam insulation after drying will interfere with the installation of the internal lining.
4. After the foam has set a little, the film and slats should be removed and, if necessary, the insulation should be trimmed.
5. Before the final covering, it is necessary to cover the pinoizol layer with plastic film on the warm side, which will act as a vapor barrier. It can already be covered with plasterboard or other sheathing material.

To insulate the ceiling in a cold attic, in addition to liquid foam insulation, its crumbs can also be used. In dry form, you can pour the material yourself and save on hiring specialists.

Here is a real review from a person who insulated his ceiling country house liquid penoizol:

After reading a lot of tips and recommendations, I insulated the ceiling in my country house with foam insulation. The design looks like this. TO ceiling beams I attached galvanized profile guides. I attached a vapor barrier film to the profile frame using double-sided tape. After this, the ceiling was covered with moisture-resistant plasterboard. Further from the attic side, the resulting cells were filled with liquid foam insulation. Since the main goal was to save on heating, the layer of foam was laid quite large, approximately 25 cm.

Vladimir Chirkunov, Voronezh

In conclusion, look short video, which clearly shows how to properly insulate with foam insulation:

In the previous article we wrote about . Today we will talk about foam insulation insulation. Reviews from people knowledgeable on this issue indicate the importance of following the rules for working with this material. It is important to maintain proportions when mixing, otherwise the material will not have its declared characteristics and may even be toxic. Being a descendant of foam plastic, this material has absorbed all of its positive qualities, and in some aspects surpassed it. At the same time, the scope of application of penoizol is somewhat narrower, due to its fragile structure.

What is penoizol made from, types

One method is spraying on walls.

Today a new trend has emerged - foam insulation insulation. Reviews from contractors agree that the result primarily depends on the quality of the materials used for manufacturing. Penoizol is polymer material, which in its qualities is close to foam plastic. Its production as a finished raw material has not been established. Factories produce only components. For the production of penoizol the following is used:

• resin – urea-formaldehyde, marked with the letters KFMT;
• orthophosphoric food acid;
• foaming agent – ​​alkylbenzenesulfonic acid, marked with the letters ABSC;
• water with medium hardness.

Insulating walls with foam insulation made from low-quality materials or not complying with technology will not desired result. For example, KFMT profile resin can be replaced with a cheaper analogue used for the production of chipboards. Non-compliance with proportions and temperature conditions also has a negative impact. Wall insulation with foam insulation should be carried out at +20 and above. Proportions of components:

• resin – 20 kg;
• orthophoric acid – 400 g;
• alkylbenzenesulfonic acid – 100 g;
• medium hard water – 25 l.

As a result, we obtain a liquid material that is poured into the cavities between the walls and ceilings. But this is far from the only method of insulating walls with foam insulation. Reviews still agree that it is the most popular and effective, but there are other options. Penoizol can be:

• liquid;
• in sheets;
• in granules (crumbs).

Liquid penoizol is the basis for the production of sheet material.

In order to obtain sheets of penoizol, you need to pour the liquid material into a mold, an ordinary cube. When the insulation hardens (polymerizes), it can be cut into sheets of the required thickness. This is done both manually with a string and on special machines.

The crumb is made from urea foam. It is important that the fractions are not small - no less than 10-15 mm, and also sufficiently elastic. To make crumbs, take one cubic meter of foam and crumble it, resulting in small balls (grains), the volume of which is twice the original. That is, if you crumble 1 cubic meter of foam plastic, we get 2 thousand liters of crumbs. There are some peculiarities when working, but insulating walls with foam insulation, according to reviews, is more profitable when using crumbs.

Characteristics of penoizol

Another method is to pour liquid material into the space between the walls.

How effective is insulating a house with foam insulation? Reviews from those who have already tried the new product say that there are benefits. It is associated with certain characteristics of the material, which make it possible not to use additional insulation. In principle, penoizol slightly outperforms its relative, polystyrene foam. Key Features:

• thermal conductivity – 0.028–0.038, despite the fact that for foam plastic these indicators reach 0.048;
• density – from 10 to 30 kg/m. cube;
• does not burn, not at all;
• service life more than 50 years, which is two times longer than that of conventional polystyrene foam;
• It allows moisture to pass through better, that is, it breathes.

All these characteristics make penoizol stand out, but only if it insulates the spaces between walls, the ceiling or the floor. For example, it is not applicable for plastered facades - it crumbles too easily and cannot withstand even minimal mechanical load.

In some sources you can find statements that mice do not gnaw it, although this is not the case. Even in mineral wool, mouse clans sometimes flourish, not to mention their favorite polystyrene foam and its derivatives. The ability of penoizol to transmit moisture has a positive effect on the indoor microclimate. Thanks to this, condensation does not form and, accordingly, accompanying problems: fungus, musty smell, the need for good ventilation or constant ventilation.

How to insulate a house with foam insulation

This is penoizol crumbs, transported in bags. Blown in using a compressor.

You need to consider penoizol insulation with your own hands in three planes, since the material can be in three states, as described above. Let's start with the most common and convenient way- This is the filling of voids with liquid material.

To insulate a house with foam insulation you will need:

• installation for mixing the components of the composition;
• large capacity containers;
• compressor.

As you understand, the thermal insulation process begins with mixing the components of penoizol, since everything must be done locally. After the composition is ready for use using a compressor, it is blown into the prepared cavity. If we are talking about roof insulation with foam insulation, then the buffer zone between the roof rafters acts as this cavity. In order to prevent the material from leaking out, a dense material is packed onto the rafters from the inside polyethylene film. The degree of filling of voids is visible visually, since the film is transparent. If the distance between the rafters is too large, then to hold the insulation layer in place, you can stretch a nylon thread or wire in a zigzag pattern between them.

Penoizol sheets are similar to polystyrene foam, only the grain fraction is much smaller.

To insulate the ceiling with foam insulation, simply spray it on top of the ceiling in the attic. The result is a monolithic layer of insulation that does not allow heat to pass through, and moisture does not stagnate under the ceiling. As you know, insulating ceilings is technologically more difficult than insulating walls. We wrote about this in the article: “ ».

The ceiling must breathe, so membranes are used that allow moisture to pass through but not heat. Penoizol does not require such membranes. Insulation of floors with foam insulation is carried out according to the same principle as ceilings. Sprayed under the subfloor required quantity liquid material. After hardening, it is quite fragile, so it cannot be damaged during operation. The same cannot be said about extruded foam, which is quite rigid and can even be placed under a screed. We talked about this in the article: “ ».

The use of foam insulation boards is justified only due to their low weight and absolute fire safety.

Although there are difficulties with this material. For example, because it is too fragile, it is difficult to transport it without losing its shape. Even a gust of wind can break a sheet, so they are made at least 10 cm thick.

Penoizol crumbs at correct use It happens to be somewhat cheaper than its liquid counterpart. But there are even more problems with it:

• precise calibration of equipment is required;
• You need to work only with completely dry material;
• if the calibration is incorrect or the grain fraction is small, the filling density increases and so does the material consumption;
• there is a lot of garbage at work.

Those who deal exclusively with crumb insulation do not recommend doing the work themselves.

The process has many nuances, failure to comply with which will undoubtedly lead to negative consequences, such as the formation of voids or waste of materials and resources.

Penoizol liquid insulation - where to look for the catch

Whether it’s insulating the ceiling with foam insulation or the walls, almost everything depends on the level of skill of the performer. Naturally, you need to look at the resin certificates, but does this mean that the certificate was issued specifically for the resin that is used to insulate your house? Probably the main indicator of the contractor’s integrity is its willingness to enter into an agreement with long-term quality guarantees. A negative result may appear after 2-3 years.

The main problems arise not from installation or equipment, but from incorrect mixing of components:

• too much resin - the material is too loose;
• overdose of orthophosphoric acid - penoizol burns out and simply crumbles in your hands.

Also, if the proportions are not observed, formaldehyde is released - a terrible poison. Based on all that has been said, we can conclude that it is possible to use penoizol liquid insulation if competent specialists work with it. Chips and slabs are not very popular and will likely never become widespread. Although the material contains toxic substances, when used in the correct dosage, they do not cause any harm.

Now one of the significant ways to save family budget or a profitable investment is to insulate your private home. Typically, the average payback period for insulating a cold house is 1-3 years and depends on the chosen method. Let's consider general insulation technologies for private houses and the approximate cost.

insulation of houses with foam insulation

And of course, I’ll start right away with filling with penoizol. With the conscientious attitude of manufacturers and workers, with strict adherence to technology, with a personal certificate of quality and a written guarantee, this insulation technology is the cheapest, most effective and fastest. Only under such conditions reviews about penoizol are always positive.

For the customer, the average price in Russia can be 120 - 180 rubles per square meter or 1200 - 1800 rubles per cubic meter + - 20%.
For the manufacturer or if you do it yourself- then it’s 50% - 75% even cheaper! . Depends on region and competition.

watch the video of insulation of the ceiling, walls of the house and wooden floor

More than 30 people from all over the CIS have already completed the installation and are insulating their houses according to my instructions!

Russia: Moscow and St. Petersburg, in Chelyabinsk, Tyumen, Yakutsk, in Bryansk, in Krasnodar, Voronezh, Stavropol, Samara, Novosibirsk, Perm, Omsk, Kirov, Ufa, in Rostov, in Belgorod, Barnaul, Armavir, Krasnoyarsk, in Ekaterinburg, Taganrog , V Nizhny Novgorod, Saratov, Izhevsk, in Stary Oskol, in Astrakhan, in Tomsk, Kemerovo
Ukraine: in Krivoy Rog, in Vinnitsa, Simferopol, Kyiv, Donetsk, Lugansk, Kharkov, Dnepropetrovsk, in Zaporozhye, Lviv
Belarus: in Brest and Mogilev
Kazakhstan: in Almaty and Kostanay

video: do-it-yourself home insulation

Time insulation with penoizol, an ordinary private house measuring about 100 m2, is 3-4 hours. Through drilled holes with a diameter of 25-30 mm fills the entire void of the air gap during well brick laying and seals cracks under pressure.

Given the relative simplicity of the technology, you can do it yourself and insulate not only your home with your own hands. In this case, the cost of insulation can range from 40 to 100 rubles (depending on the region). And if you organize it with relatives and neighbors, it’s practically free, covering all costs together.

Disadvantages of foam insulation insulation due to lack of understanding of the correct technology

Again, due to simple technology and the general availability of various components and raw materials, the required specifications cannot always be used. There are many analogues of the cheaper main polymer - resin. which reduces costs and accordingly increases the profitability of the manufacturer. In particular, furniture resin can be used for the production of OSB and chipboard, as well as a cheaper but dangerous hardener. Also, due to the hacker’s desire to save money, equipment that does not fit the parameters may be used to blow in the walls of a private house. And if, in some way, at least a small part of the general technology is violated, then there may be negative reviews about penoizol, as with any other urea foam.

How to distinguish and not fall for hacks or manufacturers of defective penoizol? Even if you don’t want to insulate the house yourself, you can control it! Having learned in detail about the general technology, the correct recipe, the correct one, which can be produced under various types brands, including . And how to insulate a house once and for a long time without consequences, efficiently and effectively.

Sometimes you come across private houses with a solid brick wall with a thickness of 40 to 80 cm or a small air gap - 1 - 2 cm. Such houses are very cold, especially made of white sand-lime brick and shell rock. From the information of residents of such houses measuring 100 m2 per heating season 5,000 to 10,000 m3 of gas is consumed per year. It will not be possible to pour liquid foam insulation into the walls of such houses.

All that remains is to insulate the external walls with ordinary polystyrene foam. If you need to save money, you can choose polystyrene foam, although it may have disadvantages. It must be equipped with fire retardants, since without them, if there is insufficient protection, it will easily ignite, releasing toxic deadly gases. And you need to choose the highest possible density and strength for a long service life. There is a more modern polystyrene foam - extruded with a different production technology. It is devoid of the above disadvantages, that is, it is fireproof, strong and durable.

The general technology for insulating walls with foam plastic consists of fastening slabs using special glue or dowels with the necessary cutting in the right places. Next, if necessary, seal all seams and joints. Fix a reinforcing mesh on top of it for applying protective plaster and façade paint. As you can see, the process is much more labor-intensive with a large number material and price accordingly.

The minimum price with a thickness of 10 cm is from 900 rubles m2, which is at least 5 times higher than penoizol and much longer. If you do it yourself, you can save 10 - 30%.

First experience with filling with penoizol

With insulation for private houses liquid penoizol I encountered this personally when insulating my home. Back then I didn’t know much about penoizol. And I chose the manufacturer only based on reviews from friends, to whom they left a guarantee and, according to their words, provided a certificate. Although the price was higher than others in the advertisements, I still called and agreed with them,

To insulate the walls of the house and fill the void with foam insulation, it is necessary to drill holes in the brick with a diameter of 26 mm. But as it turned out, the size of the layer of 3 - 5 cm does not allow for full insulation and only 5 cubic meters of penoizol were used for a house of 100 m2. From what the manufacturers say, the effect can be no more than 20%, and I decided to immediately insulate the ceiling, since the attic was uninhabited.