Foaming walls with foam insulation. Insulation of houses by pouring liquid foam insulation

Foam insulation can be used to insulate the outside walls of buildings and structures and the inside of roof slopes. It perfectly serves for repairs and insulation of already constructed buildings that have walls of three layers and voids between them.

Reviews are positive, users talk about pouring material under drywall, siding, fake diamond, in floors and frames of buildings, as well as in the base of the floor. In this article we will look at insulating walls with foam insulation.

Physical basis of insulation

Prepared penoizol Penoizol is a liquid thermal insulator, its basis is foamed and polymerized urea-formaldehyde resin.

To prepare penoizol: add a resin hardener to the soap foam mixed with water.

Just before use, urea-formaldehyde resin is poured into it in a certain proportion to obtain the required strength and density.

Advantages and disadvantages

Advantages:

Flaws:

• Application of the material requires specialized equipment;
• the material has low strength;
• when it hardens, it releases formaldehyde fumes, but after 1-2 weeks this process stops.

Necessary equipment

To produce penoizol, the following equipment is required:

Stages of filling voids and applying to the wall

Drill holes for penoizol evenly over the entire area. This type of insulation is used to insulate and fill three-layer walls, as well as slabs and other reinforced concrete structures that have many layers and voids.

With such insulation, foaming (filling) of the voids between the main and facing walls, made of reinforced concrete slabs or bricks, occurs.

It is necessary to prepare the wall, that is, remove wood, brick, concrete from it, and clean it from dust. The great advantage of the material is that you do not need to level the wall to use it.

It is necessary to drill or drill holes in the facing layer; they should have a diameter of 2.5-3 cm, located at an equal distance over the entire area. Penoizol is blown into the holes under pressure of up to 5 atmospheres.

Thermal insulation evenly fills the space between the walls. It has weak adhesion (adhesion) to concrete and brick, so it fills voids evenly.

High-pressure insulation with penoizol This method is used to fill voids larger than 5 cm with penoizol; the walls must be made of durable materials that can withstand high pressure.

Afterwards, the layer of penoizol must be leveled, cutting off the excess. Or remove excess with a dry cloth.

Take into account: professionals also advise installing reinforced mesh.

To do this, you need to level the layer of material and glue the mesh with mounting glue. Or you can apply a thin layer of primer to penoizol and attach a mesh to it. Afterwards, the surface of the walls is plastered with ordinary cement mortar.

Low-pressure insulation of walls with foam insulation In order to insulate the walls from the outside, it is done wooden frame or it is constructed of metal, with a fine-grained reinforcing mesh stretched over it. It is sprayed under it thermal insulation material, then plaster is applied.

There is also low-pressure open insulation with penoizol.

In this case, the thermal insulation is poured slowly and gradually into the niche so that the uniformity of filling can be checked.

Watch the video, which shows in detail the stages of foaming walls with foam insulation:

External insulation of houses with foam insulation is used in industrial and public buildings. This material has also shown great efficiency in low-rise residential buildings. Thanks to its unique structure, penoizol is an excellent thermal insulator. The ability to absorb sound waves makes it possible to use it for partitions. Insulating walls with foam insulation improves the performance characteristics of any building.

Hangars, covered areas, boxes and garages are not the entire list of buildings in the construction of which penoizol is used. , roofing and flooring, this product is also used with great success.

What is KFP?

Penoizol is scientifically called urea-formaldehyde foam (CFP). It also has other names, among them: unipore, minipore, isolezh, aminotherm, myfotherm. The material boasts low thermal conductivity and the same bulk density.

In a number of characteristics, it resembles polystyrene foam or polystyrene, which is more familiar to a wide range of consumers. Due to its fine mesh and lack of odor, this similarity is especially noticeable.

This material is almost impervious to air and is not hygroscopic. Considered. The formation of colonies of microorganisms on it is completely excluded. As a result, reviews about wall insulation with foam insulation are extremely positive.

Liquid foam can be poured directly on the construction site. This is quite a significant advantage of the insulation. Thanks to this quality, the consumption of the material itself is greatly saved. If ordinary construction foam expands during installation, then penoizol, on the contrary, even shrinks.

The procedure for insulating foam insulation

Insulating houses with foam insulation is a fairly simple procedure. The general technology contains a simple process in its component. Liquid between the inner, that is, load-bearing wall, and external, made of facing bricks. This type of construction is called well masonry walls.

It was used back in Soviet times. Served mainly to save money. An air layer of only 10-15 centimeters successfully replaced half a meter of continuous thermal insulation brick wall. Thus, external moisture could not penetrate inside.

However, in air gap warm and hot air mixed, which led to cracks in the brickwork. That is why the heating loss was so noticeable. Shell rocks are also considered one of the coldest buildings. Insulation between walls with penoizol can more than solve this problem.

KFP installation technology

Houses are insulated with foam insulation using a foam generator. It is also used for filling and foaming. Really good equipment equipped electronic system, with the help of which the supply of the product is manufactured and controlled. Also, most devices have pumps for which characteristic feature is a volumetric commutator drive.

What fills are used?

Wall insulation with foam insulation can be done in combination with the most different materials. Typical reviews are about insulating houses with foam insulation, in which consumers place one of the first places on the technology of working with the material.

The point is that it can be used comfortably almost anywhere. Filling between slate and internal fencing, filling between plasterboard and the main wall, filling of the outer and interior wall, is not the entire list of possible uses of the material.

Holes in the wall

Penoizol means making special holes. They need to be done in different places on the wall. For ease of use, they should be slightly thicker than the supply hose. Since the density of the pumped material is very low, it can also be used in rather frail and dilapidated buildings.

When it hardens, it does not expand, so you don’t have to worry about the CFP breaking apart the structure. This is another fact about which reviews about insulating walls with foam insulation are everywhere. Eg, polyurethane foam does not possess such qualities.

Drilling and filling

Holes are drilled in the wall in a checkerboard pattern, through which the penoizol is then poured. Important point: This needs to be done from the bottom up.

Thus, the material begins to evenly fill the cavity, flowing out through adjacent holes. At this time, you need to quickly seal them with wooden plugs.

You need to continue until the mixture is completely dry. There are no joints or seams in the mass poured in this way. This fact guarantees the density of thermal insulation.

Insulating buildings can significantly reduce heating costs. Many home owners choose penoizol as insulation. They insulate walls and roofs. Penoizol insulation protects the premises well from noise and creates a comfortable microclimate inside. It is relatively inexpensive and easy to use.

Penoizol has excellent insulating properties; it is used to insulate walls and roofs

Insulation options

In an uninsulated building, heat loss during heating reaches 40%. Heat escapes through walls, windows, doors, ceilings. The use of insulation helps reduce heat loss to a minimum. It is important that installation work is carried out competently and in strict compliance with technology.

Insulation of houses with penoizol can be done externally and internally. Both options have their advantages and disadvantages.

In this video we will look at insulating a house:

External insulation has the following advantages:

• a layer of insulation on the walls does not reduce the area of ​​the room;
• it has vapor and waterproofing properties that protect walls from the effects of fungus and mold;
• insulation from the outside is more effective than the inside, since the walls lose heat 6 times slower;
• the wall structure does not freeze even at the lowest temperatures.
• insulated walls have good sound insulation.

In addition to its advantages, external insulation has significant disadvantages. Its disadvantages:

1. It is quite difficult to insulate multi-storey buildings from the outside. Here the help of climbers is needed.
2. External insulation changes appearance building.
3. Installation can only be done in dry weather and temperatures not lower than +5ºС.

Insulation with foam insulation provides good sound insulation and waterproofing

Internal insulation also has its advantages. Its advantages:

• installation of the material can be done in any weather;
• This is an economical option that you can do it yourself;
• You can insulate both a separate room and the entire building.

It also has its downsides. They are as follows:

• a layer of insulation reduces the size of the room;
• the walls do not warm up completely;
• there is a high probability of condensation forming between the wall and the insulating layer;
• insulation complicates the installation of shelves and wall cabinets;
• the level of heat loss is much higher than with external insulation.

Advantages and disadvantages of penoizol

This is urea-formaldehyde foam, which is used to insulate walls, ceilings and the soil foundation of buildings. It appeared on the market not long ago building materials, but has already gained popularity among consumers. It has the following advantages:

• has good sound insulation;
• does not attract rodents;
• resistant to moisture and fungus;
• does not smoke or melt under the influence of fire;
• has good breathability;
• it has a liquid consistency, which penetrates even into small cracks and gaps during installation;
• the material is strong and durable;
• it can be reinforced by adding mineral additives;
• the cost of penoizol is low.

The material also has some disadvantages. Disadvantages of penoizol:

• shrinks over time;
• working with it requires certain skills and adherence to technology;
• penoizol is quite unpredictable when hardening, since in some cases it forms large voids that are difficult to fill.
• The insulation is quite fragile, so it is additionally sheathed with durable materials.
• when hardened, it releases toxic gases.

Installation of material

The greatest heat loss occurs through the surface of the walls, so they need to be insulated especially carefully. Penoizol can be used to insulate a building both inside and outside.

External wall insulation with foam insulation is usually more effective. With it, the material is used either in the form of slabs, or the space between the walls and the outer cladding is filled with foam. This installation method can also be used for frame buildings.

Fill the gap between the masonry. For insulation in brick houses in the external masonry, holes are drilled between the bricks and foam is poured into the inter-wall voids using a special foam generator. Penoizol does not expand when it hardens, so you should not be afraid that it will destroy the wall.

In modern buildings, walls are foamed directly during construction. Thanks to this technology, the material is distributed evenly and creates a durable layer of thermal insulation that reliably protects the building from the vagaries of the weather and the effects of low temperatures.

There is also a large loss of heat through the roof, so it is necessary to insulate both the ceiling and the roof. If the roof is sloping, then liquid penoizol can drain from its surface. To prevent this, it is necessary to prepare the roof, for which special pockets are installed on it, which are filled with foam during operation.

Insulating a house with foam insulation is done as follows:

1. WITH inside roofs between the rafters stretch a strong plastic film. It is pulled tightly and secured with a stapler, while making sure that there is no sagging. The film can also be additionally secured with strips.
2. The space between the rafters is filled with foam insulation, making sure that no sagging occurs. The sagging film must be secured with strips. If penoizol sag, then in the future it will be difficult to carry out internal cladding of the roof.
3. After the insulation has set, the film with the strips is removed and the surface is leveled.
4. Before covering the roof with plasterboard or other materials, the insulation for vapor barrier is covered with plastic film.
5. To insulate an attic, you can use not only liquid foam insulation, but also crumbs of this material. It is quite possible to pour it into the cells with your own hands, which allows you to save on hiring specialists.

Penoizol is a modern insulating material with excellent heat and sound insulation properties. It insulates walls, ceilings and other building surfaces well.

You can insulate a house with foam insulation yourself, but it is better to hire specialists who will help you choose the right insulation components and evenly lay the insulation layer.

The building materials market is constantly improving. New technologies are emerging that improve the quality of existing products. At the same time, repair and construction work is carried out faster and cheaper. One of the new materials that is gaining popularity today is penoizol. It has a lot of positive characteristics.

general characteristics

The name of the presented insulation is the name trademark. There are many other companies that make the same product but under different names. All of them are urea foam.

Among the domestic analogues of penoizol we can name unipor, ecoizol, mettemplast, mipora, teploizol, etc. Foreign names of the presented material are also varied. In the UK, urea foam is called flotofaum, in the Czech Republic - mofotherm, in Switzerland - isoshaum, etc. Moreover, the principle of the presented compositions is the same.

Price

One of the main advantages of the presented insulation is its price. Penoizol costs about 600 rubles/m³. At the same time, the quality of thermal insulation is not inferior to the popular insulation materials existing on the market today.

If we compare penoizol with mineral wool, a product with similar thermal conductivity will cost the consumer 1.5 times more. Moreover, the price of this insulation is 900-1000 rubles/m³.

The price of penoizol is 1.5 times lower than the cost of polystyrene foam. Material with similar thermal conductivity costs 950-1000 rubles/m³. The cost of extruded polystyrene foam is 6.6 times higher than that of penoplex. It is about 4 thousand rubles/m³ (taking into account the thermal conductivity coefficient).

Also, in terms of cost, urea foam is more profitable than basalt slabs, staple fiber and expanded clay. For this reason, many private property owners prefer this type of material.

Compound

Has a lot of advantages. The material is similar in structure to marshmallow. Production does not require large expenses. Therefore, the cost of the product is relatively low. After processing, the output is semi-liquid foam.

After drying, this material is highly elastic. Dents from various impacts on it are quickly straightened out. The material has high thermal insulation characteristics and repels moisture.

When creating penoizol, a certain type of urea resin is used. Acid is added to it. A foaming additive is used in a certain proportion in the composition of the product. A mixture of the listed components is put into the equipment. Compressed air is supplied to it. The resulting substance has a jelly-like consistency. It can be immediately applied to the base of the wall.

Installer reviews

Characteristics of penoizol determine its method of use. After the mass comes out of the unit’s sleeve, it hardens. However, this process occurs gradually. The material sets to the base 10 minutes after application. In this state, penoizol remains soft.

After another 4 hours, the mass hardens. It becomes quite hard. However, penoizol has not yet gained strength. It will take a few more days for the thermal insulation to be ready for subsequent finishing. It gains strength within 3 days. During this time, Penoizol acquires all its positive qualities.

Professional installers claim that thermal insulation of this category is installed much faster than other insulation materials. The surface processing speed will be 4-5 times higher. Moreover, the material is lightweight. It slightly makes the structure heavier.

Thermal conductivity

After hardening it has a mass positive qualities. One of its main advantages is low thermal conductivity. The material allows you to significantly reduce energy costs in winter.

Depending on the structural features, as well as the method of installing penoizol, its layer can be from 5 cm to 1 m. When a layer 10 cm thick is applied to the surface, the room becomes much warmer in winter. The thickness of penoizol is selected individually for each object. In this case, the climatic features of the area and the features of the building itself are taken into account.

Depending on the density and composition of the material, the thermal conductivity coefficient can be 0.031-0.041. This is a good indicator. The presented material is used for both external and internal insulation. When creating a layer of insulation from foam insulation in a room, you don’t have to worry about the appearance of condensation on the walls. At the same time, the finish will last a long time.

Fire resistance

after application to various surfaces, it gains its basic qualities within 3 days. In addition to low thermal conductivity, penoizol, after hardening, demonstrates high fire resistance. This sets it apart from many insulation materials.

Even with very high temperatures The presented material does not ignite or even melt. At the same time, it does not emit smoke or substances hazardous to human health. This is an environmentally friendly material. Due to its resistance to fire, penoizol can be used in a wide variety of private and industrial facilities. It is operated in a thermal range from -60 to +80 ºС.

To understand how penoizol behaves at elevated temperatures, you should consider the following situation. If the ambient temperature rises so much that the metal begins to melt, the insulation presented will simply gradually evaporate. At the same time, hazardous chemicals will not be released into the air. During a fire, smoke from penoizol is released 10 times less than from expanded polystyrene.

Resistance to various influences

Which forms an insulating layer on various surfaces indoors and outdoors, it is highly resistant to various biological and chemical influences. The material is not subject to the destructive influence of various solvents and active substances.

The presented insulation does not harbor various insects and mice do not gnaw through it. The fungus is also unable to reproduce on its surface. These qualities allow you to create a healthy microclimate indoors.

One of the advantages of the material is its ability to pass air. This allows you to regulate the humidity level in the room. The owners of such a house note that the indoor microclimate is healthy and there is no dampness. The inside of the building is dry and warm. Various pathogens practically do not reproduce in such an environment.

Moisture absorption

Today, many installers use penoizol in cylinders. This insulation is very easy to use. However, the thermal insulation is different high level moisture absorption. He's also good at giving it away environment. This allows you to maintain an optimal level of air humidity.

If penoizol gets wet, it dries quickly. At the same time, its original characteristics remain unchanged. This process does not affect the properties of the insulation in any way. It retains heat well in the room and does not ignite. The walls will not be damp. However, experienced installers recommend not to neglect high-quality ventilation.

The hygroscopicity of the presented insulation allows walls and finishing materials to deteriorate much more slowly. In this case, the insulation layer can absorb from 10 to 20% of moisture from the environment per day.

Strength and Durability

Characterized by high softness. Once on the base, it adheres well to any surface. At the same time, the insulating layer effectively covers all irregularities. No voids or gaps appear under the thermal insulation.

Penoizol gradually gains the strength specified by the manufacturer. However, it is not very tough. When bent, the material breaks. When you press on the material, it quickly expands. The elasticity of such insulation remains high. But when bent, the insulation does not exhibit high strength.

When conducting research on the characteristics of penoizol, it was found that it is capable of operating at correct installation 30-50 years. These data are confirmed by laboratory studies. The presented material has been used in construction relatively recently. However, according to its main operational characteristics it becomes clear that this is a durable insulation.

Negative reviews

In various sources you can find many positive and negative reviews about penoizol. Who insulated their home with this material, in most cases they are satisfied with the result. However, there are also negative reviews.

After pouring penoizol, its shrinkage ranges from 0.1 to 5%. This is an insignificant indicator. However, if there is insufficient vocational training craftsman or when using low-quality material, this figure may increase.

There are also reviews about the unpleasant odor of the insulation, which appears during the drying process. This phenomenon occurs only in products Low quality. Do not contact dubious installation organizations. When penoizol dries, a small amount of formaldehyde may be released. However, its quantity is insignificant. It is enough to leave the windows in the room open to get rid of them when the insulation hardens. unpleasant odor fast.

Positive reviews

Minor disadvantages of penoizol cannot affect its relevance and ever-growing popularity. Many positive reviews from those who installed the presented material at home, speaking about the high quality of the insulation.

When used, the room becomes much warmer. Energy bills decrease in winter. At the same time, the room becomes warm and the humidity level is maintained at a level optimal for human health.

Installation is very fast. Moreover, the cost of such finishing will be several times less than when using other types of insulation.

To perform quality insulation with penoizol, you must contact only trusted installation organizations. They provide a guarantee on their work. Materials used for insulation must have appropriate quality certificates.

Ready penoizol should not settle. He has White color. After drying, the material has a cellular structure. There should be no air bubbles in it.

Reviews about the use of urea foam insulation will help you draw conclusions about penoizole. Who insulated their home using the presented material in most cases they are satisfied with the result.