Penoizol: application and features of insulation. Penoizol sheet - Penoizol production technology pros and cons

Polyfoam and its varieties in the decoration of buildings using the "senergy" technology have been used in Western countries for a couple of decades. However, in our country, the practice of wall and roof insulation in order to create comfortable living conditions is only gaining momentum, especially since an excellent alternative has appeared to expanded polystyrene plates.

One of the types of liquid thermal insulators based on foamed and polymerized urea-formaldehyde resin is called penoizol, and its popularity is so great that the brand has become a household name for a whole group of similar materials. The house insulation technology is really unique and allows you to fill any hollow structures. At the same time, it is possible to make a working mixture directly at the construction site from special grades of carbamide resins, an acid and a foaming agent.

Advantages and disadvantages

Like any thermal insulating material, penoizol has both pros and cons. Its undoubted positive properties are:

high thermal insulation capacity. To ensure the same protection, it is enough to apply a 45 mm layer of foam insulation, while 75 mm of foam is required, and even more of mineral wool - 125 mm;
environmental friendliness. Does not emit harmful vapors and odors;
restoration of the previous volume with slight compression;
resistance to temperature extremes and fluctuations in humidity;
the ability to pass vapors, that is, "breathe". Due to the vapor permeability, according to the reviews of those who insulated the roof and walls, condensation accumulation is never observed in the premises. That is why it is ideal for wooden houses and log cabins;
Fire safety. Despite the fact that penoizol is an organic material, it does not support combustion and, under the influence of an open flame, only charred, losing volume. And, which is not at all typical for organic matter, soot and carbon monoxide gases are not emitted.
indifference to all kinds of biological factors - rodent animals and insects. Penoizol, unlike foam, is absolutely "unappetizing" for unwanted satellites of civilization.
high adhesion and filling of all voids, due to which it is used in structures of various shapes, where the use of sheet material is technologically difficult.

The price is no less attractive to consumers. The average cost of 1 cubic meter is a little more than 1000 rubles, which is quite comparable to the prices for modern mineral wool (ROKWOOL, ISOVER). And if you consider that you can pour penoizol yourself without hiring outside specialists, then the undoubted benefit becomes obvious.

Of course, it is not complete without a "drop of tar". Moreover, negative reviews about penoizole are often caused by the presence of components of inadequate quality and home-made installations for foam generation, which is the fault of small private firms that work without production certification. This is the reason for many complaints that the mixture solidifies extremely slowly, it crumbles during operation, and the insulation layer is subject to significant shrinkage and emits an unpleasant odor. Unfortunately, it will be possible to establish the fact of falsification of the composition only in laboratory conditions. Therefore, be extremely careful and try to buy Penoizol from reliable suppliers.

With full compliance with the manufacturing technology, the following disadvantages are still noted:

seasonality: penoizol is used only at ambient temperatures above 5 ° С;
with vertical insulation, it requires applying it in several layers with a certain period of time for solidification;
"Open porosity", which requires additional waterproofing. However, classical materials, in particular, the same polyurethane foam, “sin” with this property.

Comparison of penoizol with other heaters

The technical characteristics of penoizol, if we compare it with other thermal insulators, are distinguished by high rates, and in some ways surpass the traditional options, which can be clearly seen from the following table:

Indicator name	unit of measurement	Penoizol	Expanded polystyrene (polystyrene)	Mineral wool
Thermal conductivity coefficient	W / (m.K)	0,028-0,04	≥0,04	≥0,08
Fire hazard group		G2 (does not support combustion, self-extinguishing)	G3-G4 (high flammability)	NG
Bulk density	Kg	8-25	40 and up	80 and above
Sound absorption	%	65	45
Water absorption in 24 hours, by weight	%	10,5	1,5-3,5	70
Operating temperature range	° C	-80-120	-60-60	-180-400
Service life		70 years and above	Up to 50 years old	Up to 25 years old

If in some characteristics he is inferior to his opponents, then in terms of the convenience of performing work, he undoubtedly has no equal.

The main difficulty in pouring with your own hands is the availability of equipment for producing a thermal insulator. Alas, the drawings of "miraculous installations" for blowing foam that have flooded the Internet often lead to outright marriage, especially if it is produced by people who have a very limited understanding of the need to comply with the exact formulation of the mixture and the technology for making penoizol. And yet, if you have the desired foam generator or a special pump, as well as a certain meticulousness, filling is quite simple.

In addition to the liquid insulator, there are slabs and chips in the line. The first ones are most often mounted when laying brick walls, in the future, buildings are finished with siding, clapboard or plastered. The prices for sheet penoizol are quite democratic, and the scope of its application, especially in the foil version, is extensive, from baths and saunas to the arrangement of warm floors.

When reviewing penoizol, it is impossible not to mention such a type of material as crushed crumb. "Crushed" is blown into inter-wall openings, inter-floor ceilings, is used for pipes in the trench space and as a filler in the production of polystyrene concrete.

Due to the constant and rapid growth of tariffs for electricity and heating, most people are trying to save money by using energy-saving technologies. More recently, sheets of expanded polystyrene, foam or mineral wool have been used for this. However, since progress does not stand still, penoizol replaced the above materials.

This article will consider the main competitive advantages of this technology, as well as its characteristics and scope.

Penoizol is a liquid insulation that is used in the production of construction and installation works. Unlike standard heaters (mineral wool, extruded polystyrene foam, etc.), this material has a liquid structure, thanks to which it can be easily poured into a cavity in a wall, into interpanel seams or cavities in reinforced concrete floors.

For the manufacture of penoizol, a special resin is used, which, when exposed to chemicals (foaming agents based on aluminum powder), creates a porous structure that perfectly retains heat.

Depending on the place of application, penoizol is manufactured with a density of 10 to 30 kg per cubic meter. Moreover, its thermal conductivity reaches 0.028-0.038 W / m².

For example, 50 mm of penoizol is replaced with 125 mm of mineral wool, or 2132 mm of concrete. Based on this, it follows that this material has high technical and economic indicators, which makes it the leader in the insulation market.

Scope of modern insulation "Penoizol"

This technology demonstrates good results when pouring:

into the airspace formed between two walls;
between the roofing and the rafter system;
in a frame on which partitions or false walls are assembled from gypsum plasterboard sheets;
between the outer upholstery (siding, lining, profiled sheet, etc.) and the wall;
into the space between the concrete base of the floor and the OSB sheets.

As can be seen from the above list, the scope of penoizol is quite extensive. However, why is this material so popular? For this, it is necessary to consider the main advantages of this technology.

The main advantages of insulating a house, apartment or office using penoizol

Due to the current structure when pouring, the material fills all cracks and voids as it is fed under pressure.
It effectively retains heat in winter and cool in summer, since its thermal conductivity reaches 0.028 W / m². For comparison, the thermal conductivity of mineral wool with a density of 125 kg per cubic meter is 0.07 W / m², which is more than 2.5 times higher than that of penoizol.
Lack of "bridges" of cold, which occur during insulation with the help of sheet insulation.
Fast installation. This insulation is prepared directly on site and is very quickly applied, since it does not need to prepare the base and level the walls or floors.
This material is made from environmentally friendly materials, which allows it to be used even in children's rooms.
Does not spread combustion. When the electrical wiring in this insulation is closed, in contrast to the foam, the flame immediately goes out.
When applying penoizol, there is absolutely no unpleasant odor.

Penoizol application technology

This material in its structure is a thick urea-formaldehyde foam made of white foam. This material is pumped under pressure into the necessary cavities, and the higher it is, the better the object is insulated.

After penoizol enters the required cavity, the polymerization process takes place, due to which a large number of air bubbles are released, which precisely provide the low thermal conductivity of the material.

After the completion of the polymerization process, penoizol gains strength and retains its porous structure for many years.

Conclusion

Penoizol is a highly effective material for insulating walls, floors or roofs with low thermal conductivity, long service life and an affordable price.

The middle of the 90s of the last century was a turning point for the building materials market. Practical and inexpensive types of insulation began to appear, for example, mineral wool, glass wool, cellulose-based insulation. These materials attract the attention of buyers with an affordable price and relatively good characteristics.

However, there are also significant disadvantages. In particular, these are rather bulky materials, and the thickness of the insulation slab "hides" the interior space of the premises. In addition, such thermal insulation can dry out and paint, which invariably leads to heat loss. Of course, mineral wool is still considered one of the most popular thermal insulation materials today.

However, this is not caused by high efficiency, but by a democratic price. If there is a need for really high-quality thermal insulation of premises, penoizol is used during construction. This is a liquid insulation that is rapidly gaining popularity in our country.

What is this thermal insulation material?

Let's start with the definitions. The name "Penoizol" is a trademark of a heater based on urea resins. The material is in high demand, therefore it has become a household name, combining the following names:

"Teploizol"

"Mipora"

"Unipor"

"Mettemplast"

However, among professional builders, insulation is better known as liquid or jellied foam.

In appearance, the insulation resembles a marshmallow, which, after hardening, turns into an elastic mass that is guaranteed to fill all the voids.

The composition of the insulation includes the following components:

Urea resin

Orthophosphoric acid

Foaming additives

The ingredients are mixed in certain proportions and pumped into special cylinders, where the mixture is under pressure.

Technical characteristics of urea formaldehyde foam (UF)

It is believed that in terms of the declared performance properties, penoizol surpasses any insulation available on the domestic market. The main characteristics of thermal insulation are as follows:

Heat efficiency... The thermal conductivity of the insulation varies within 0.031-0.041 W / m on the Kelvin scale. It is enough to pour a layer of liquid foam into 10 cm to provide reliable insulation for the interior.

Soundproofing... Penoizol absorbs up to 65% street noise, which is considered a very good indicator.

Fire safety... The material is non-flammable and does not support combustion. However, when exposed to high temperatures, the insulation will simply evaporate without releasing toxic substances into the air.

Dependence on chemical and biological factors... The insulation is neutral to any aggressive environment. In addition, the insulation is not of interest to rodents, it is resistant to pathogenic microflora: fungus, mold.

Moisture resistance... The material absorbs moisture well, but subsequently evaporates it without losing its original properties. Considering this feature, it is recommended to equip ventilation gaps in order to prevent the formation of mold on the walls.

Strength... The indicators of the linear compression of the insulation are 0.07-0.5 kg / cm2... Accordingly, the material holds its shape well, quickly restores the structure.

Manufacturers assure that thermal insulation can serve 30-50 years old without loss of quality. However, the insulation appeared on the market relatively recently, so there is no evidence of such an impressive service life yet.

Advantages and disadvantages of cured thermofoam

The popularity of penoizol did not arise out of nowhere. Among the indisputable advantages of insulation, the following features can be distinguished:

High technical properties- even a layer of insulation in 45 mm, is able to prevent heat loss.

The elastic structure allows it to recover to its original state even after prolonged compression.

Neutrality to any external influences- sharp temperature changes do not affect the quality of the insulation.

Excellent adhesion- due to the liquid structure, thermal insulation adheres well to any surfaces, fills all voids.

Multifunctionality- insulation is suitable for any design, regardless of geometric shapes.

Vapor permeability- when using penoisol, condensation does not form on the walls, which is very useful for wooden structures.

In addition, liquid foam does not form cold bridges.

Of course, there were some drawbacks. The weaknesses of the insulation are:

Shrinkage- after pouring, the volume of the material may decrease by 0.1-5%.

Moisture absorption- if we are talking about warming the foundation, this parameter can be regarded as a disadvantage.

Dependence on temperature conditions- work with penoizol is possible only at an air temperature above +5 degrees.

Low tensile strength- despite the elastic structure, the insulation is easily torn and pierced, which violates the thermal insulation performance.

The disadvantages include the high cost. Curiously, the price of insulation does not exceed the cost of mineral wool and other heat-insulating materials. However, pouring liquid foam requires special equipment that private developers do not have.

Therefore, the equipment has to be rented, or a team of builders must be hired, which makes the total cost of the work heavier.

Independent reviews from construction forums

To understand the real effectiveness of the insulation, you should not unconditionally trust the words of sellers and manufacturers. It will be much more effective to refer to the reviews of real people who have already used the subject of our conversation for insulation. Immediately, we note that opinions on the properties of liquid thermal insulation are divided.

Not bad, but there is a small nuance. Alexander (www.forumhouse.ru)

Penoizol is an excellent alternative to any type of modern insulation. The price is quite acceptable, the mice will not be taken apart, the declared characteristics are at a high level. However, in practical use, a small drawback came to light: when the wooden walls were insulated, there were unfilled areas.

Friends advised. The house has a comfortable microclimate. Ildar (mastergrad.com)

We decided to insulate the walls with penoizol about 5 years back: outer wall made of block and bricks. Between the masonry left 6-7 centimeters free space. Glass wool, mineral wool did not give the expected result: the wall began to grow moldy, the rooms were pretty cool.

Friends advised penoizol. When the team worked, it was audible and visible how the insulation fills the space between the walls, appearing from the cracks. Now the house maintains a comfortable microclimate at any time of the year.

There are no complaints, but there were problems during the filling process. Mikhail (forumnov.com)

It is clear that seamless insulation has undeniable advantages. There are no complaints about the quality of insulation, however, for the equipment to work, a network connection is required 380 V... I did not have such an opportunity, which caused some difficulties in the filling process.

I really don't like the toxic smell. Konstantin (forum.vashdom.ru)

After pouring, penoizol noticeably decreased in volume, which already reduces the quality of thermal insulation. In addition, the material has an unpleasant and obviously toxic odor. They said that the composition includes formaldehyde, the use of which has long been abandoned in European countries. The house was recently insulated, so I can't say anything about the properties of the material, however, doubts about the correctness of the choice are already tormenting.

The price of the work bites. Edward (www.forumhouse.ru)

Personally, I am satisfied that penoizol will not be gnawed by mice, the insulation precisely fills any cracks, provides reliable heat and sound insulation. I did not like the fragility of the material, its susceptibility to deformation. And the total cost of the work bites a little.

In order for penoizol to fully justify the hopes placed on it, it is necessary to strictly observe the pouring technology. If this is the first time you come across liquid thermal insulation, it is better to immediately contact specialists who can do the job with high quality.

Wall insulation is carried out according to the following scheme:

Holes are drilled in the wall structures, where penoizol is pumped through the filling sleeves.

Install a protective facade from a metal profile, leaving a gap between the wall and the metal 5-10 cm.

Fill the free space with insulation.

Are waiting 4 hours so that the material grabs, cut off the excess insulation, proceed to the finishing.

Roof insulation:

The surface intended for insulation is covered with a film that should go onto the walls of the attic on 10-15 cm.

Fix the membrane with staples.

On top of the film, slats are stuffed.

The space between the slats is filled with insulation.

Are waiting 15-20 minutes in order for the insulation to become viscous, the surface is leveled.

Across 4 hours you can proceed to further work.

Floor insulation:

Installation of wooden lathing is in progress.

All sections are filled with insulation.

When the material hardens, a plastic wrap is laid on top.

The finishing is carried out: boards are laid or concrete is poured.

In principle, working with penoizol practically does not differ from the installation of other types of insulation.

Consumption rates of insulating material per 1m2

When planning a budget for construction, you need to accurately determine the amount of material. To determine the amount of liquid insulation that will be required to insulate the entire building, it is necessary to know the consumption rates of penoizol per square meter.

According to the assurances of manufacturers, the consumption of liquid foam for 1m2 varies within 1-1.3 l.

To calculate the required amount of material, you need to multiply the length and width of the wall by the consumption rates declared by the manufacturer. For example: 7 * 3.2 * 1.3 = 29.12 liters. In this case, the final amount of thermal insulation must be taken with a small margin, counting on unforeseen situations.

Producers of urea foam in the Russian Federation

Penoizol is produced by many companies in Russia and Europe. However, in order to buy quality material, you need to take a responsible approach to the choice of the manufacturer. Therefore, we advise you to pay attention to the products of such companies:

"New building technologies"... The company was founded in 1990, specializes in the production of thermal and waterproofing, fiberglass, fiber-reinforced concrete. Today, it is one of the main suppliers of penoizol in the Russian market. By the way, the rights to use this trademark belong to this company.

Varmal LTD. This is a British company engaged in the production of liquid insulation flotofaum - the name of penoizol.

LLC "Yuveis". Russian company located in the city of Orenburg. The manufacturer has been working on the market for a long time, so it carefully monitors the quality of the products.

In addition, customers give positive feedback on the products. LLC "ProTeplo", LLC "Penoizol-Omsk", CJSC "Murmansk Universal Plant".

When building houses or renovating them, the question often arises of effective wall insulation. For these purposes, a variety of materials are produced that differ in their technical characteristics, properties, performance and cost. Recently, penoizol or urea-formaldehyde foam plastic began to gain more and more popularity in the domestic market.

It allows you to quickly and inexpensively insulate almost any building structure.

What it is?

Penoizol is a modified foam. Its consistency resembles a marshmallow. The material is a foamed plastic with a honeycomb structure. Modified foam is a modern heat insulator for thermal insulation of building structures.

Often the material is prepared directly on the construction site. With the help of specialized equipment, cavities in walls, ceilings, roofs and attics are filled with a liquid mixture. Thanks to the manufacture of insulation at a construction site, money, time and effort are saved for the delivery of a conventional heat insulator and its handling. Additional space is not required for storing heat-insulating products.

Composition

In the manufacture of penoizol, inexpensive components are used, due to which the finished material has an affordable cost.

For the production of this insulation requires:

urea-formaldehyde resin;
foaming component;
orthophosphoric acid;
water.

The dosed parts of these components are put into special equipment (foam generator), to which compressed air is supplied. Due to the use of such a device, a foamy mass is formed, intended for sealing voids.

The modified foam is white and jelly-like. With its help, it is possible to quickly seal all air spaces. The applied foam hardens after 10 minutes. After 4 hours the mass becomes solid, and after 3 days it acquires “final” strength. 72 hours is enough for the final drying of the material.

Views

Thermal insulation of structures is made by various types of penoizol. There are three types of them:

Liquid. The most commonly used type by builders. Its popularity is due to its ease of use. Such a heat insulator is prepared directly on site using specialized equipment. The material can be purchased in cylinders for a small amount of work. Air gaps are closed with liquid foam during the construction, reconstruction or repair of various structures.

Sheet or in rolls. This insulation material is made by pouring liquid foam into molds. After the mass has hardened, it is cut into sheets with the optimal length, dried and mechanically cleaned. Some manufacturers offer foil-lined foam sheets. Such materials cannot be glued. They should be fixed with dowels, and covered with cladding on top.

Chit. Penoizol granules are obtained by crushing solidified penoizol into fractions, the size of which does not exceed 15 mm. Granular insulation has a minimum density (up to 8 kg / m2).

Different types of liquid foam can be used for different construction purposes.

Where is it used?

Penoizol is widely used in private and professional construction. It is used not only as a heat-insulating material, but also as a sound-insulating component.

It is used for insulation:

external walls;
facades;
roofs;
pipelines;
vegetable stores.

The material is also intended for sandwich panels. Granular penoizol has found application in the insulation of horizontal structures: floor surfaces, attics and interfloor ceilings. Foil insulation can be used to insulate water pipes.

You should be aware that liquid foam has some restrictions on its use. For example, it is not recommended for use in areas subject to intense moisture. These include plinths, cellars, foundations. The reason is simple: penoizol is able to withstand multiple cycles of freezing and thawing, but at the same time it loses its thermal insulation properties.

Experts also advise against using urea-formaldehyde foam for arranging a roofing cake. The fact is that the material quickly collapses under the influence of sunlight, which is why, soon after installation, it can lose its heat and soundproofing qualities.

Peculiarities

By its technical parameters, penoizol surpasses many modern heaters.

The main characteristics of the material:

Excellent thermal conductivity. Indicators of this parameter range from 0.03 to 0.4 W / mK. To preserve heat and significantly save on heating, it will be enough to install foam insulation sheets 10 cm thick on the walls.
Good noise absorption (over 65%).
Fire resistance. Heat-insulating products based on urea-formaldehyde resins belong to the flammability class G-1, and to the flammability group V-2. This means that the material will not catch fire in a fire or even melt. With prolonged exposure to a flame of fire, the insulation will evaporate without emitting toxic substances.

Moisture resistance. The heat insulator absorbs moisture well and gives it back without losing its performance. The insulation is able to absorb up to 1/5 of moisture and soon evaporate it.
Strength. Compression under linear deformation is 0.25–0.3 kg / cm2, and under tension is 0.05–0.08 kg / cm2.

Penoizol can be operated at severe temperature fluctuations from -50 to +100 degrees, which allows it to be used in difficult climatic conditions.

Advantages and disadvantages

Liquid foam has numerous advantages that distinguish it from other types of heat insulators.

This material has the following advantages:

Low coefficient of thermal conductivity.
Elasticity and resilience. Thanks to these properties, the foam fills all gaps and voids, eliminating the formation of cold air bridges.
Resistant to mechanical stress. Under power loads, the hardened material is crushed, and after the cessation of pressure, it quickly returns to its original position.
Persistence to sudden changes in temperature and resistance to changes in humidity.
Excellent vapor permeability. Due to this property, condensation will not accumulate on the insulated wall surfaces.

Good adhesion. The foam quickly and reliably adheres to any of the bases, making it convenient for it to insulate buildings with a complex structure.
Excellent protection against mold and mildew. There is no need to be afraid that insects will start in the insulation or that rodents will spoil it.
Favorable price. Raw materials for the manufacture of penoizol are inexpensive, which has a positive effect on the prices of the finished material. Having completed the installation of a heat insulator with your own hands, it is possible to save a significant amount on house insulation.
Durability. Correctly installed thermal insulation material can last more than 50 years without changing its performance.
Environmentally friendly. During operation, the heat insulator does not emit harmful substances. It is safe for health.

Despite the above advantages, liquid foam is not an ideal insulation. It has some disadvantages. Reviews of those who insulated their home with penoizol indicate material shrinkage (approximately 5%). The disadvantages include the impossibility of preparing and applying a foamy mass without specialized equipment.

It can be rented or bought, and this leads to additional financial costs.

The disadvantages of consumers also include a high percentage of moisture absorption, low tensile strength and the inability to work with foam at temperatures below +5 degrees. In addition, during the installation of the material, there are risks of release of phenol-formaldehyde vapors hazardous to health. And yet penoizol is harmful or not, it is worth understanding in more detail.

Is it harmful or not?

According to numerous reviews online, most liquid foam consumers complain of its toxic odor during installation and drying. According to experts, such situations are observed when purchasing a low-quality heat insulator. The fact is that some manufacturers, in order to save money, use cheap urea resin with numerous impurities.

A high-quality heat insulator can only give off an unpleasant odor during installation. This is explained by the fact that during polymerization, the substance begins to release formaldehydes. However, their number is insignificant. In comparison, many modern paint and varnish products emit much more harmful substances, while foam insulation made according to standards ceases to emit formaldehyde already upon drying.

Comparing all the pros and cons, we can conclude that it is better to refuse cheap insulation from unfamiliar manufacturers. It is better to overpay and give preference to well-known brands that have won the trust of consumers.

Manufacturers overview

Penoizol is a trade name for urea foam and this mark can only be used by NST (New Construction Technologies). This material is produced abroad, in each country it has its own name:

in Great Britain - flotofoam;
in Germany - animotherm;
in Canada - insulspray;
in the Czech Republic - mofotherm.

The basis for the production of liquid foam in Russia is produced by the companies ZAO Metadynea, OAO Togliattiazot, OAO Akron and others.

Components

For the manufacture of penoizol directly at the construction site and its supply, specialized equipment will be required. It includes gas-liquid installations, the function of which is to mix the components that make up the material and supply the finished foam to molds or places of insulation. In addition to mixing units, you will need an air compressor and reagent containers.

The principle of operation of such an installation is simple: all containers with the necessary components and a compressor are connected to the gas-liquid unit by means of hoses. After mixing the reagents, foam forms. It is then fed into molds or air gaps at the construction site.

Before you buy penoizol, as well as purchase or rent all the necessary components for house insulation, it is important to familiarize yourself with some recommendations.

How to choose?

Consider a number of nuances when selecting equipment.

For the installation of liquid foam, two types of installations can be used: gas-liquid and pneumohydraulic technology. The first, budgetary, is advisable to use for insulating small objects, for example, a private house. Pneumohydraulic equipment is distinguished by its large dimensions, productivity and cost. It should be selected when large-scale work is required.
It is recommended to give preference to installations with a built-in compressor and receiver.
Pay attention to what the plunger pump is made of and its options. Choose a pump made of stainless steel or plastic. It must have a speed control function.
It is not worth buying a unit with a foam generator attached to the pumping part.

be white in color;
do not decrease in volume immediately after leaving the installation sleeve;
withstand hand pressure after 15 minutes of solidification;
do not have large and heterogeneous pores;
recover quickly after clicking.

If the prepared mass meets these requirements, you can safely purchase it.