Features of hangar insulation with polyurethane foam. Roofing for a hangar: from the selection of materials to maintenance of the finished roof Frameless insulated hangar insulation thickness

Currently, many industries and Agriculture require availability storage facilities such type as insulated hangars. But it’s not always possible to buy a modern storage space, which is why insulating a hangar with polyurethane foam makes it possible to use what you already have in a new quality.

Such structures have all the qualities of insulated warehouse premises, and make it possible to store some goods and products that require a positive temperature.

There are currently two types of hangars:

1. arched (frameless);
2. frame.

The first option has recently gained great popularity (due to its low cost), so manufacturers today focus on this option. But here it should be noted that the basis of the entire structure is corrugated sheeting.

In terms of its strength characteristics, this roofing and fencing material is second to none.

But it has two big drawbacks:

1. High probability of corrosion.
2. Like any metal, it allows low temperatures to pass through.

The first problem can be dealt with by painting the hangar with protective paint, or using corrugated sheeting polymer coating(the price increases sharply). The second problem can be dealt with by insulating it from the inside.

In this article we will answer the question of how to insulate a hangar from corrugated sheets.

Hangar insulation technology

Let's start with the fact that currently there are only two technologies that are used in such a process as the construction of insulated hangars. This is processing using slab materials (mineral wool, expanded polystyrene, basalt mats, polystyrene foam, etc.).

Thermal insulation with slab insulation

Due to the fact that the cost of board materials is quite low, many may decide that this particular method is the most optimal.

But here lies some technological secrets that ordinary people cannot know about.

• Firstly, slab insulation must fit on frame system, which needs to be prepared and mounted. And these are additional financial expenses. Typically, the frame system is made of metal profiles.
• Secondly, the insulation itself must be protected from exposure wet vapors, therefore, before laying it, all inner surface The hangar is covered with a windproof and moisture-proof barrier and a vapor barrier film. Again expenses.
• Thirdly, you will again have to stretch a vapor barrier over the insulation.

A rough estimate suggests that the costs Additional materials And additional work cover the cost of insulation several times. So where are the savings?

The only plus is the ability to carry out the thermal insulation process yourself. Of course, given the size of the hangar, we are talking about several workers. This is not insulation of the loggia - there is room for a whole team to turn around here.

Attention!
Drop external temperatures leads to lung movements metal structures become significant.
And this will certainly lead to tension protective films will begin to tear.

And if the film laid on top of the insulation can still be easily replaced, then changing the inner one will be a big problem. As practice shows, these films cannot withstand even the first winter. Whether it is worth insulating hangars and warehouses in this way is up to you to decide.

Insulation of hangars with polyurethane foam

Polyurethane foam is a mixture that is applied under slight pressure to the surface of the structure, and which is immediately attached to it.

As you can see, spray insulation of hangars is very different from the first technology. But it seems that apparent simplicity should be reflected in demand.

So it is, the differences also lie in the cost of the work performed.

• Let’s immediately make a reservation that insulating hangars by spraying does not require the construction of a frame, which reduces the price. And this is already a plus.
• In addition, the material itself is applied to surfaces without seams, which means there are no cold bridges at all.
• To protect polyurethane foam insulation there is no need to use various films. The material itself copes well with loads.
• Such a heat insulator can be applied both inside the hangar and outside. In the second case, you just need to cover thermal insulation layer polymer material, which will protect the insulation from the ultraviolet rays of the sun (PPU is very afraid of the sun).
• This material is so light that it does not create any load on the hangar structure; on the contrary, it strengthens it.
• Plus, this heat insulator has an attractive appearance. It does not need additional finishing. The only thing you can do is paint it.

It should be noted that this entails some inconvenience in terms of work. Firstly, only specialists can do this.

Secondly, as with most construction and installation work, there are high safety requirements. For example, you need to use a respirator, safety glasses, a protective gown, insulated Angara gloves, and shoes.

And one more very serious point that concerns the thermal insulation of the hangar as a whole. That is, it is necessary to insulate entrance doors and gates, insulate plastic windows, if any are available (see article for more details). That is, nothing should be left unattended.

Conclusion on the topic

This is how hangars can be thermally insulated so that they can be used for storing certain goods. In principle, the instructions for insulation are not complicated, although both processes are quite labor-intensive. In the video presented in this article you will find Additional information on this topic.

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Hello. Today I’ll tell you about How to insulate a hangar with polyurethane foam. In previous articles, I have already talked in general terms about the use of this material, but now I propose to take a closer look at the spraying technology and the features of the equipment used.

Cost-effectiveness of self-insulation of metal hangars

If desired and if there are material possibilities, instead of conventional metal structures, a prefabricated insulated hangar is built. The prefabricated structure is based on metal on which SIP panels are attached, in which a layer of thermal insulating material is protected on both sides by scrap sheet metal.

But you need to understand that the price of an already insulated structure, despite the information on the manufacturers’ websites, is higher than the cost of a hangar, where the walls are made of ordinary corrugated sheets. Now very important point— even with professionally performed insulation, the price of a conventional hangar remains more affordable than the cost of an insulated prefabricated analogue, despite the fact that the thermal conductivity coefficient external walls quite comparable.

So, insulating hangars with your own hands is economically justified. It remains to find out how foamed polyurethane is sprayed onto metal surfaces, what equipment and what materials are used for these purposes.

How to spray - step by step review

Let's consider the listed stages in more detail.

• The assembly of scaffolding or similar metal structures is carried out in accordance with the height of the object, but, one way or another, the finished structure must be strong and stable;
• The installation is connected to a compressor;

• The equipment is installed as close to the exit as possible, but so that the hoses reach the wall furthest from the exit;

• Suction hoses from the installation are lowered into container “A” and into container “B”;
• We disassemble the spray gun by removing the cover with the nozzle;

• Holding the gun over unnecessary capacity, fill the hoses with foaming components;

• Cleaning seat under the nozzle on the gun from foaming components and lubricate it with lithol so that foam does not stick to it later;

• Screw on the cap with the nozzle and the tool is ready for use;

Fully enclosed respirator - optimal solution in order to maintain health when working with polyurethane foam

• We wear personal safety equipment;
• Turn on the feed compressed air from the compressor;
• Open the taps on the gun and turn on the supply of the mixture;

If you are spraying polyurethane foam for the first time, you can try how the material lays on some small surface, for example, on a piece. After preliminary training, coping with the main task will be much easier.

• For ease of work, we begin applying light foam from the bottom up from the base towards the ceiling;

In order to evenly process a large surface, work in pre-marked sectors. For example, try to apply the material in one even layer at a time into the cell between adjacent frame stiffening ribs to the height of your height. Next, move in this manner along the perimeter of the hangar, after which you can process the wall at a higher level, etc.

• After the first layer is applied, we let it take on its final volume and at this time we change component “A” to a similar component, but for rigid foam;

• Apply the second layer in the same way as the first layer;

Components for producing rigid and light foam are often painted in different colors, so that when applying the second layer you can see the transition and qualitatively fill in the missing areas.

• After spraying is completed, the hoses need to be washed and thus remove any remaining foaming components;
• Next, the equipment is disconnected from the network and disassembled into individual components.

Recommendations for the selection of equipment, components and components

Did you know that 50% of the success of thermal insulation using polyurethane foam (PPU) depends on correct selection equipment components and Supplies. What do you need to know when planning work with polyurethane foam?

The cost of a spraying installation starts from 40 thousand to half a million rubles, and this difference is justified by the comfort of work and the quality of the result.

You should not save money when choosing equipment for insulating a hangar. In this case, it would be correct to rent the installation or order a spraying service from specialized organizations.

To determine which installation is right for you, there are two factors to consider:

• Firstly, this is the length of the hose, which should at least be equal to the height of the hangar, multiplied by two.
• Secondly, this is the volume of foam applied over a given time period, and the higher this parameter, the better for working on large objects.

Select the correct volume of components, taking into account the fact that they may be consumed unevenly. For details related to the consumption of components “A” and “B,” please refer to the instructions on the packaging of the materials.

Two types of polyurethane are used for spraying:

• Open-cell (light foam) - has a lower structure density and less resistance to mechanical loads;
• Closed cell (rigid foam) - characterized by a higher density structure with an increase in volume by 5 or more times.

Some experts prefer to apply one of the listed types of polyurethane foam, selecting the material in relation to the characteristics of the object. I recommend combining both types of polyurethane foam, that is, first we apply a layer of light foam, and after the first layer has dried, we apply a layer of hard foam.

As a result, you will apply two layers of insulation, but get up to 20 cm thick insulation. In addition, a layer of light foam will provide high adhesion, while a surface hard layer will make the insulation more durable.

In order for spraying polyurethane foam onto metal to be successful, it is necessary to comply temperature regime specified by the manufacturer of the foaming components.

As a rule, the air in the room should be heated to +30°C or more. Therefore, it is advisable to carry out thermal insulation work with foam in the warm season. In the cold season, achieve optimal operating temperature in the hangar you can use a heat gun.

Another equally important point is that when starting to work with polyurethane foam, do not forget about personal safety equipment, namely, we use work clothes, thick gloves, safety glasses and a respirator.

Why do you need a respirator? Components that create foam when mixed are toxic, and the lower the price of the purchased components, the more toxic they are. Therefore, in order not to develop asthma, we use a respirator and do not forget to promptly update the filters on it.

And finally, do not forget about such devices as scaffolding or sawhorses, which you can climb onto in order to safely work at height. These structures must be strong enough to make working comfortable and safe. Price good forests is high, so it is not advisable to buy such structures for one-time work. In this case, I recommend that you rent forests.

Conclusion

Now you know how to insulate a metal hangar from the inside. Ask all questions on the topic in the comments to what you read. In addition, I recommend watching the video in this article.

If you want to express gratitude, add a clarification or objection, or ask the author something - add a comment or say thank you!

As you know, the outer walls of a hangar or car wash (or indeed any other structure) are not airtight, which causes significant heat loss. To solve this problem, owners of buildings often resort to insulating them, sometimes even doing so.

Thermal insulation of walls is one of most important tasks when arranging a hangar or car wash, because it can significantly reduce the cost of heating the premises. If earlier the insulation of the structure was carried out with ordinary mineral wool, today wide use purchased a polyurethane foam spraying system.

For correct application You should familiarize yourself with all the advantages of this method and carry out high-quality thermal insulation work.

1 Features of the technique

Insulating a hangar with polyurethane foam allows you to simultaneously solve several problems:

• reduce heat loss from the structure;
• improve waterproofing of the structure;
• insulate basements.

The method of insulation using polyurethane foam (polyurethane foam, for example) is increasingly used today to insulate the walls of a car wash or hangar. The technology has gained high popularity due to the exceptional qualities of the material.

Polyurethane foam is a type of gas-filled plastic. Polyurethane foam is delivered to the site in the form of two separate components - isocyanate and polyol.

A powerful air atomization apparatus mixes liquids in a special way and delivers a fine aerosol at the output. Polyurethane foam penetrates into the smallest cracks and hard-to-reach areas, after which it quickly hardens.

Ultimately, polyurethane foam is a porous polymer rock that consists of 80-90% air.

1.1 Advantages of the polyurethane foam spraying method

Thermal insulation of walls using the polyurethane foam spraying method can be used for any hangar geometric shape. The insulation system, at the request of the customer, is implemented from the inside or outside of the structure.

The advantages of using PPU material are as follows:

• exceptional quality of thermal insulation;
• high wear resistance;
• resistance of polyurethane foam to environmental factors;
• quick installation as in the case of ;
• absence of seams on the surface of the walls;
• strengthening the hangar structure;
• fire resistance;
• low costs for carrying out the work.

Insulating walls using polyurethane foam, regardless of whether it is carried out from the inside or outside of the hangar, is a very effective way to avoid heat loss. The material has a low thermal conductivity coefficient (less than 0.03 W/mK), which allows for exceptional quality of thermal insulation.

An important advantage of polyurethane foam is the ability to apply a layer of material over the entire area of ​​the structure, including beams and other elements of the hangar. Thus, the treated surface does not contain any seams. This not only provides a pleasant aesthetic appearance to the walls, but also guarantees reliable insulation of the structure.

Polyurethane foam, regardless of whether it is used inside or outside the hangar, retains its insulating properties for over 30 years. In addition, the foam spraying method is economical and does not require large investments.

The work is carried out without the use of additional fasteners, and the structure itself does not require laying a hydro-, steam- and wind-insulating layer. Due to the fact that the hangar does not need preliminary preparation, the time required for installing the PPU or from inside the hangar is significantly reduced.

The material is highly fire resistant and has good resistance to chemical substances and environmental conditions, including low temperatures, moisture, wind loads. Polyurethane foam will additionally strengthen the hangar structure, increasing its reliability and endurance.

2 Insulation technology using polyurethane foam

The technology of insulation using polyurethane foam begins with preliminary drying of the surfaces being treated, removing dust from the walls and degreasing them. These negative conditions worsen the adhesion of the composition and slow down the passage of chemical reactions.

Metal structural elements if necessary, cleaned from rust. Before insulation, specialists must carry out testing: a control sample of the composition is applied to the surface and the process of hardening of the mass is monitored.

If the result fully corresponds to what was expected, you can begin the main work. Spraying of polyurethane foam with installation is carried out in several layers, the first having a thickness of 10-15 mm. The second and third are applied a few minutes later.

Insulation must be carried out during a period when the ambient temperature exceeds 10°C, otherwise the chemical reaction process may be disrupted. Rain and high humidity air.

By adhering to a number of simple rules and following technology, you can qualitatively insulate the structure, protect it from wind, corrosion, rodents, and also reduce the cost of maintaining the hangar, saving on heating.

2.1 The process of insulating a hangar using polyurethane foam (video)

Today, arched hangars are a very popular and cost-effective type of construction. These structures are used for parking lots, warehouses, vehicle storage () and other equally important needs. Such structures are used as premises for shops, workshops and offices.

Except undeniable advantages, there are disadvantages when operating hangars. Main disadvantage arched structures - the difficulty of heating, because the 1-1.2 mm thick steel used to assemble arched structures does not retain heat well. High-quality heating large arched hangars - very expensive pleasure. That is why hangars require high-quality thermal insulation by professionals.

Insulation of hangar structures

Thanks to the insulation of frameless arched structures, you will make the room warm, while saving a lot of money on heating. Thermal insulation significantly reduces energy costs, and a stable temperature regime is maintained inside the structure. Used for insulation mineral wool in rolls, and other materials.

Hangars have big sizes, therefore this procedure is expensive, so be extremely careful when choosing insulation. Often traditional insulation materials, used to isolate capital structures, are economically unprofitable and ineffective.

Disadvantages of other materials

If you use it to insulate hangars, it is necessary to provide elements with which it is attached to the frame. These elements will significantly make the structure heavier, which often leads to a violation of the integrity of the frameless structure. In addition, when insulating with mineral wool, you should lay vapor barrier layer, which will protect the insulation from condensation. As you know, it is water that incapacitates mineral wool insulation in a few years.

Typically the insulating layer consists of polymer films, requiring fastening. They are expensive and short-lived. Often a person is faced with the problem of breaking the vapor barrier layer during the operation of a hangar. Natural deformation occurs.

The most useful and effective method, with the help of which it is easy to insulate a frameless hangar - thermal insulation by spraying polyurethane foam.

Advantages of polyurethane foam

1. Unique properties material allows it to be sprayed on surfaces of any shape. Used for thermal insulation of ceilings and other horizontal surfaces. We also note the ease of processing inclined surfaces, for example.

2. Polyurethane foam is an excellent insulator against steam penetration. You will forget about the need to apply additional layers to ensure high-quality vapor barrier.

3. Using this method, no additional fastenings to the hangar frame, since polyurethane foam is sprayed onto the surface of the building frame without weighing down the structure.

4. The service life of polyurethane foam reaches 50 years.

5. Insulating the ceiling and walls of a hangar using this method takes several times less time than when using other materials.

6. It is also worth noting the speed of completion of work on. To insulate a hangar room with an area of ​​1000 sq. m. you will need 4 days.

7. 2 centimeters of polyurethane foam have the same level of thermal insulation as 20 centimeters of mineral wool.

8. The layer can be of any thickness, it depends on the climate zone and your preferences.

9. Polyurethane foam is applied in an even layer, there are no cracks or gaps.

10. Insulating hangars with polyurethane foam does not lead to destruction; the building structure is strengthened.

11. The material is fireproof and environmentally friendly. The density is low, which does not create additional load on the structure.

Compared to polyurethane foam, the use of other thermal insulation materials is ineffective, taking into account material costs and the quality of the final result. For insulation with other materials, additional devices and fasteners are required. Such coatings will not be able to cover the entire area without the formation of seams and cracks. At the same time, reliable thermal insulation of the entire structure is not ensured; unprotected parts of the metal frame remain.

The thermal conductivity of metal is 2950 times higher than polyurethane foam. If you do not insulate one beam 0.01 sq. m., the thermal resistance of a structure with an area of ​​100 square meters will decrease. m. 1.3 times. In addition, there will be losses from cracks formed during installation and fastening of the material. Therefore, heat loss will be an order of magnitude greater.

Of course, insulating a hangar by spraying polyurethane foam is the most technologically and economically effective option.

Video: Insulation of hangars with polyurethane foam

Insulation various types hangars with sprayed polyurethane foam in the agricultural complex

In this article we will try to substantiate the thesis stating that today one of the most effective, inexpensive and quick ways thermal insulation of large non-residential premises is insulation with sprayed polyurethane foam density PPU from 45-60kg/m3 on a freon basis.

Probably, it will not be a revelation to anyone to say that a building of enormous area and height, which does not have high-quality thermal insulation, is capable of bankrupting its owner in one winter due to astronomical heating costs. You don’t need to have knowledge of higher mathematics to calculate how much it will cost to heat volumes measured in tens of thousands of cubic meters.

If such a structure is not located in the subtropical climate zone and the average winter temperature behind its walls it oscillates below zero mark thermometer scale, the only solution to the problem of maintaining the required temperature inside is high-quality thermal insulation. No one will argue with this axiomatic statement. Another question is the choice of the type of thermal insulation and the material on the basis of which it will be implemented. Let's produce brief analysis main heat-insulating materials and impartially compare their advantages and disadvantages.

The main types of thermal insulation materials for hangar insulation

First of all, it should be noted that all thermal insulation materials are divided into two main groups - inorganic and organic.

Inorganic thermal insulation materials

The most common inorganic thermal insulation materials include the following:

mineral wool;

glass fiber (glass wool);

foam glass.

We will not go into the intricacies of the production technology of these materials, since this is of little interest to the end consumer. Let's dwell on their properties.

All of the above materials are characterized by fire resistance, low thermal conductivity and resistance to chemical and biological influences (mold, pests). However, despite the above-mentioned advantages, they also have a number of serious disadvantages. Mineral wool And fiberglass They are characterized by high hygroscopicity, which leads to the fact that these thermal insulation materials become completely unusable after just a few years, if they are not impregnated with special hydrophobizing (giving water-repellent properties) compounds, and mineral wool also requires mandatory waterproofing.

The above-mentioned disadvantages are devoid of such insulation like foam glass, however, it has high rigidity, which limits its use in conditions where the surface has a complex shape.

For the most part, the above-mentioned insulation materials are supplied in the form of blocks, which are fixed using fasteners of one type or another on the walls of the room to be insulated. This inevitably leads to damage to the integrity of the structure, which, in turn, reduces its service life to a greater or lesser extent. It is also possible to fasten these materials with glue, but this method also has its drawbacks: the glue does not hold so firmly, and as a result of temperature changes, peeling of certain sections of the insulation may occur. With both fastening methods, due to the fact that the heat-insulating coating is not monolithic, so-called cold bridges will inevitably occur, reducing the overall effectiveness of the heat-insulating layer.

You can also mention in this section such a material as foam concrete, which is not just T heat-insulating material, but a building material with low thermal conductivity. But it's still construction material, not insulation.

Organic thermal insulation materials

The most common organic thermal insulation materials include the following:

polystyrene or Styrofoam;

polyethylene foam;

polyurethane foam.

We are all familiar with the first type of the above-mentioned organic insulation materials from childhood: who among us has not bothered our beloved parents by driving a piece foam plastic on glass? This lightweight material consists of 90% air, and air is known to be a good heat insulator. Insulation with expanded polystyrene has been widely used for a long time, but this material has one significant drawback - it is very fragile.

Polyethylene foam- one of the most promising modern materials, which has almost all the advantages of polyurethane foam, which will be discussed below. But it also has a significant drawback - like any polyethylene, it is not heat-resistant.

Now let's move on to considering the properties of polyurethane foam - a material that combines all positive traits the above-mentioned heat insulators and practically free of their disadvantages.

One of the main advantages of polyurethane foam is the ability to be sprayed onto a surface of any size and shape, resulting in a uniform layer of thermal insulation without any joints or gaps. The result is a complete absence of cold bridges.

Due to the fact that polyurethane foam has exceptionally high adhesion to surfaces of almost any type, the possibility of peeling off the heat-insulating layer is completely eliminated. In addition, spraying technology significantly reduces the time required for insulation of various buildings.

Polyurethane foam very effective and lightweight: a ten-centimeter layer of this substance is equivalent in its heat-insulating properties brickwork two and a half meters thick. The lightness of the material in question is due to the fact that it consists of 85% - 97% (depending on density) of air or gases.

Polyurethane foam is heat-resistant and frost-resistant, which allows it to be used in all climatic zones. It does not require any additional waterproofing, and even moreover, its rigid version can itself serve as an excellent waterproofing agent and is widely used in construction as such.

To another advantage of this material excellent noise insulation properties.

Taking into account all of the above, we can safely say that polyurethane foam is most suitable for insulating metal structures such as hangars. The lightness of polyurethane foam allows you not to overload the structure from metal sheet slightly more than 1 mm thick; heat resistance will be needed in the hot summer months when metal gets very hot high temperatures; frost resistance allows you not to worry about the strength of the thermal insulation layer even in severe frosts, and the absence of cracks ensures that not a single drop of precious heat leaks out. If we add to this the speed with which polyurethane foam insulation is carried out, it becomes clear that prefabricated hangars and this insulation are simply made for each other.

« Kucherenkov and Company» offers individual approach to every client. We find unique solutions for each client and produce a product in accordance with your wishes. Cooperation with our company means: completion of work in the shortest possible time; profitable prices at high quality works; the best insulating materials; professional, fast and friendly service.

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