Insulation of hangars with polyurethane foam in Moscow

Insulation with polyurethane foam (PPU)

The material is a synthetic insulation, which consists of polymer foam, a group of plastics. Today it is one of the most used insulation materials.

Advantages

Let's start with the advantages of polyurethane foam:

• the possibility of spraying on any shape, which reduces the number of possible cracks and holes;
• continuous, seamless spraying increases the efficiency of insulation;
• will not support combustion - self-extinguishes;
• high vapor permeability, allowing excess moisture to be removed;
• long service life - from 25 years;
• resistant to aggressive environments;
• is not allergenic.

Flaws

Despite the excellent characteristics, the product has its disadvantages:

• high price - about 27 thousand rubles per 100 kg;
• a good result is possible only if the technology is followed;
• There is a rumor that the material is harmful to health.

Sequence of work

All work can be completed in a couple of days:

1. First of all, remove everything that is crumbling, greasy stains, paint. Even with good adhesion, surface preparation will not be superfluous.
2. Everything that should not be covered with the material should be covered with polyethylene, which is secured with tape. It should be secured very carefully so that there are no gaps.
3. At the beginning of installation, a permanent sheathing is made.
4. Using cylinders, the required thickness of polyurethane foam is applied.
5. After work, the surface is cleaned.
6. Wooden or metal strips are attached to the wall, to which the exterior trim is attached.

Insulation using polyurethane foam

Price list for frameless insulated polyurethane foam 50mm arched hangars

The price includes : an arched frameless shell with 50 mm thick polyurethane foam insulation, installed on the customer’s foundation with a 3x3 m opening for the gate.

In the “Prices” you can download ready-made commercial offers for standard insulated and cold arched hangars.

Polyurethane foam (PPU) is a modern thermal insulation material in the form of a gas-filled thermoactive infusible mass. The cellular structure of polyurethane foam provides numerous advantages of this material:

• High degree of thermal insulation, which allows you to create high-quality thermal insulation protection of enclosing structures.
• A high degree of sound absorption ensures effective sound insulation.
• Excellent adhesion to all types of surfaces: steel, wood, concrete, brick and others.
• The application of polyurethane foam to the surface is carried out by spraying, which takes a minimum of time and effort.
• High degree of resistance to moisture.
• When applying polyurethane foam there are no connecting or technological seams.
• Good elasticity, which prevents deformation and cracking due to mechanical shocks.
• High resistance to the spread of fungi, mold and other microorganisms.
• Lack of reaction when exposed to chemically active substances.

One of the significant disadvantages of polyurethane foam is its high degree of destruction due to exposure to ultraviolet radiation. For this reason, it is not recommended for use when insulating the outer surface of a hangar.

Polyurethane foam application technology

When frameless hangars are erected: insulation is the next stage, which occurs as follows:

Polyurethane foam is applied to the inner surface of the hangar by mixing a liquid solution of polyol and isocyanate in a high-pressure dispenser. The result is a fine aerosol that has high adhesion and is able to penetrate into the most inaccessible places and crevices. After applying polyurethane foam to the surface of the hangar walls, it acquires a hardness of 90% of the nominal value within the first two hours. After the first day after application, it completely turns into a solid state up to 100% of the specified strength. Insulation of frameless hangars with polyurethane foam occurs in the shortest possible time. To protect the heat-insulating material from damage and give the inner surface high aesthetic qualities, use the installation of a profiled galvanized sheet over a pre-assembled sheathing. This helps protect the polyurethane foam from thermal and mechanical influences, which can cause its destruction or loss of working properties.

Where are frameless hangars used?

Of course, frameless arched hangars are the most popular in industry - they are used as warehouses and workshops, as markets, bases and storage facilities, for temporary or permanent placement of working equipment, and, if suitable conditions are provided, for personnel.

In addition, the arched hangar can be used as an indoor stadium or skating rink, parking lot, workshop, gallery, studio - the range of possible uses is so wide that there is no point in using it completely. However, let’s consider possible ways to use this structure in a private sector:

• garage is the most popular and cheapest option for placing cars, trucks, agricultural and other types of equipment;
• a barn is an ideal option for owners of country and village houses and farms. The range of applications is extremely wide - the hangar can be used as a storage area for harvested crops, a chicken coop, a cattle pen, etc.;
• attic floor - in this case, a frameless arched hangar is installed directly on the roof of the house, provided there is a flat roof. This is very convenient if, for example, you want to build an insulated greenhouse - the structure is compact and has extremely low weight, putting almost no load on the building;
• a work space - a hangar - may be suitable for an entrepreneur to place a temporary office. This use has many advantages, in particular, placement in almost any location with low space consumption and savings on rent;
• room for leisure – in winter, the insulated hangar can be used as a children’s playground, gym, tennis court or indoor swimming pool.

Methods and features of insulation of hangars

A truly properly insulated hangar room allows you to guarantee the complete safety of the machinery, equipment and other items that are located in it. In this article we will look at the main methods and subtleties of insulating hangars.

Insulation methods

As practice shows, the best results can be achieved only if the hangar is insulated both outside and inside . Note that in this case, not only is the highest possible efficiency achieved, but it also ensures reliable protection of the building walls from the effects of various types of negative factors, which is especially important when it comes to metal hangars. However, with all the advantages of both internal and external insulation, two important points should be taken into account:

1. External involves the installation of heat-insulating materials on the external planes of the hangar walls. Moreover, in the case of additional installation of a heat insulator on the internal planes of the walls, the usable area of ​​the entire room will be quite noticeably reduced. In addition, it is worth considering that simultaneous external and internal insulation will require quite serious financial costs.
2. The arrangement of the interior can cause condensation to form between the cold wall and the warm insulating material, which can ultimately lead to freezing of the walls. Moreover, if in this case foam plastic is also used, then moisture will constantly accumulate at the joints between the foam plates, which will gradually destroy them. If mineral wool or glass wool is used as an insulator, then the harmful fumes arising from these materials will constantly be present indoors.

Types of materials

The modern building materials market offers a fairly large assortment of a wide variety of insulation materials. Each type of heat insulator has its own advantages and disadvantages. Let's look at the most common types in more detail.

Styrofoam

Without a doubt, polystyrene foam can be called one of the most popular thermal insulation materials. Polystyrene foam is produced in the form of slabs consisting of pressed granules. Thermal insulation characteristics reach about 90%. The advantages include affordable cost, lack of odors, and resistance to fungal formation. However, it is worth remembering that polystyrene foam dissolves when exposed to petroleum products, which in some cases makes its use impossible.

Mineral wool

Mineral wool is an ecological thermal insulation material , which is made from ferrous and non-ferrous metallurgy products. In terms of parameters such as density, thermal conductivity, sound insulation, and fire safety, mineral wool ranks first among other thermal insulation materials that are sold on the construction market. For internal insulation, it is recommended to use mineral wool with a hardness of 180 kg/m3. If we are talking about external insulation, then it is more advisable to use stiffer mineral wool (200-240 kg/m3).

Despite the high characteristics and all the advantages that mineral wool has, it is used extremely rarely . This is due to the rather high cost of the material and in some cases its use is not practical from an economic point of view.

Polyurethane foam (PPU)

Polyurethane foam is an environmentally friendly material, the warranty period of which is more than 30 years . With a relatively small thickness, it has fairly high thermal insulation characteristics. The advantages also include high resistance to the negative effects of alkalis and acid-aggressive substances.

Please note that liquid polyurethane insulation is in quite high demand both for insulating houses and garages, and for insulating hangars. The thing is that 1mm of polyurethane coating is similar in characteristics to 50mm of mineral wool . This option is considered by experts to be the most optimal, especially when it comes to insulating large arched hangars.

Criteria for choosing thermal insulation

When choosing one or another insulation material, a number of important points should be taken into account. So, what should you pay attention to when choosing a material? Below we list some of the most important points:

1. Price . The price of the material is the main selection criterion for many. It is important to understand and remember that savings can often be very expensive later. So, for example, in some cases, the use of a budget heat insulator, namely polystyrene foam, although beneficial from an economic point of view, is unacceptable from the point of view of exposure to various types of chemically aggressive substances.
2. Technology . Here it is worth paying attention to the fact that in the case of internal insulation, environmental safety and the thickness of the material are of primary importance, while external insulation can be done using almost any heat insulator.
3. Resistant to moisture . You should not ignore the fact that a hangar is a room with a high level of humidity, and therefore, in addition to the thermal insulation characteristics of the material, it is worth taking into account such parameters as moisture absorption and resistance to corrosion.

Separately, we consider it necessary to note that in addition to what was mentioned above, it is worth taking into account such a factor as the material from which the hangar is built. In particular, if we are talking about a metal structure, then its walls must additionally be lined with plywood sheets, under which the thermal insulation material will be located. If we are talking about brick walls, then in this case it is best to build additional walls in which to place the insulator.

Stages of insulation

Complex insulation of a hangar is carried out in several stages. First - the ceiling of the building, then the walls and at the very end - the gate. Let's look at each stage in more detail.

Ceiling

Most of the insulation of hangar ceilings is carried out using glass wool . Rolls of glass wool are laid between the roof rafters if the beams of the rafter system are of sufficient length for normal ventilation between the insulation and the water barrier. In all other situations, 100mm thick insulating material is laid on top of the rafters. After laying the glass wool, it is covered with waterproofing material and fixed with a lathing made of wooden beams. Subsequently, the facing material is fixed to the sheathing of beams.

Wall insulation

Since foam plastic is most often used to insulate hangar walls, below we will look at the technology using foam plastic. The process itself looks like this:

1. The wall surface is thoroughly cleaned of heavy dirt. If necessary, the plaster coating that has become unusable is removed. If cracks or significant irregularities are detected, such defects are corrected with cement-sand mortar or a special cement adhesive mixture.
2. To fasten the first – bottom row of foam plates, a special L-shaped profile made of stainless steel is installed. Fastening to the wall is done using “Quick Installation” fasteners.
3. Using a deep penetration primer, all walls are treated. In this case, it is best to carry out the treatment twice with breaks between applying each layer. It is most convenient to apply the primer using a roller.
4. A cement adhesive mortar is prepared, for which a certain amount of dry mixture is mixed with a certain amount of water. The proportions for obtaining the correct consistency can be found on the packaging of the dry mixture. It is very important to mix the solution well, for which it is convenient to use a mixer attachment and a drill.
5. Using a notched trowel, the adhesive solution is applied to the wall surface. In this case, the area on which the adhesive solution is applied should be slightly larger than the area of ​​the foam sheet.
6. The foam is applied to the surface of the wall with glue applied and pressed against it. When gluing each new sheet, its joints with other sheets are coated with an adhesive solution.
7. To ensure maximum tight pressing of the foam sheet to the wall surface, the sheet is additionally fixed with special plastic dowels.
8. After complete completion of the installation of foam sheets, wait some time until the adhesive mixture dries completely. The drying time of the glue depends on the ambient temperature and humidity level. As a rule, the adhesive mixture dries completely after 1-3 days.
9. Next, a reinforcing fiberglass mesh is glued to the surface of the foam. Each piece of mesh is glued overlapping the previous one. The same mixture that was used to install the foam can be used as an adhesive mixture.
10. After the reinforcing layer has completely dried, the surface of the walls is treated with a primer, and finishing work is carried out. For example, walls can be plastered using decorative plaster and subsequently painted.

Advantages of polyurethane foam

• High-speed technology for installing thermal insulation. During one work shift, the installer applies from 300 to 400 m2 of coating to the surface of the hangar.
• Light specific weight and the absence of additional fasteners make it possible to insulate the room without loading the foundation and load-bearing supports of the hangar.
• High adhesion of polyurethane foam. The material is applied by spraying and penetrates under pressure into the pores, cracks, joints and seams of the surface. When hardened, it expands and sticks without additional fasteners or adhesive mixtures.
• PPU forms a dense monolithic layer, which increases the rigidity of hangar structures, which increases resistance to wind and snow.
• Thanks to its adhesive properties, it holds firmly on inclined and sloping surfaces and does not slip over time under the weight of its weight.
• The finished design of the PU foam insulation has no seams or joints, so there are no “cold bridges”, and the appearance of condensation on the walls and corrosion on metal parts is eliminated.
• Provided with environmental and biological safety certificates.
• Polyurethane foam is a non-flammable material and is classified as a fireproof insulation material.
• It has vapor and waterproofing and sound-absorbing properties.
• Retains its thermal insulation properties for over 30 years.

Internal installation of thermal insulation is preferable. These works are not tied to the time of year and can be performed at any time. After spraying, the walls are reinforced for greater strength and plastered.

External insulation is carried out only at an air temperature of +10 degrees, in the absence of wind and precipitation. After hardening, reinforcement also occurs and coating with special paint is required. PUF is sensitive to direct sunlight, so it is protected by painting.

The price of insulation using polyurethane foam is not much different from the price of thermal insulation work using classical materials. The difference pays off in the speed, durability, and versatility of polyurethane foam.

Are you interested in economical, fast, effective insulation? Leave a request for a consultation on our website. We will call you back and choose the most appropriate options for thermal insulation of your premises.

With our company “PPU Insulation”, quickly means quality!

How is thermal insulation performed with polyurethane foam?

Application of polyurethane foam can be done both from the outside and from the inside of the room. The formation of a heat-insulating layer occurs on the working surface. Specialists distribute the mixture evenly throughout the entire structure. Particular attention is paid to the processing of beams, seams and horizontal elements.

The applied insulation has low thermal conductivity and also demonstrates a high level of protection from external environmental influences. In addition, closed-cell polyurethane foam is widely used for thermal insulation of hangars. It has the lowest thermal conductivity coefficient and demonstrates excellent waterproofing properties.

The main advantages of thermal insulation with polyurethane foam

Despite the high cost, polyurethane foam thermal insulation has a number of important advantages. It allows you to protect the hangar room from heat loss, street noise and other negative factors.

Environmental friendliness

PU foam does not contain formaldehyde or phenolic resins, which are found in expanded polystyrene or mineral wool products. Therefore, it can be used to insulate buildings where food, vegetables and grains are stored.

Polyurethane foam does not contain phenolic resins.

Chemical resistance

Polyurethane foam is not afraid of exposure to solvents, chemicals, alkalis and acids. In addition, its composition and density do not change upon contact with steam or water.

Thermal properties

The material has increased thermal insulation properties. With identical thickness, it is 2 times more efficient than traditional solutions. Therefore, developers can reduce the thickness of the insulation layer while maintaining optimal thermal conductivity.

Polyurethane foam has good thermal insulation properties.

Physical and mechanical features

Polyurethane foam is distributed over the surface without installing additional fasteners. After the surface hardens, it becomes monolithic and rigid. This increases the safety margin of the hangar structure and allows it to withstand heavy loads.

Lifetime

Using polyurethane foam, you can form a monolithic coating with a long service life. The service life declared by the manufacturer is 30-50 years. Minor defects and mechanical damage can be eliminated by filling a new portion of the solution.

The service life of polyurethane foam is 30-50 years.

Insulation of frameless hangars with polyurethane foam

An alternative method of thermal insulation for frameless hangars is spraying polyurethane foam. A similar service can be ordered from Ecotermix. What are the advantages of the technology:

• completion of work in the shortest possible time;

  An alternative method of thermal insulation for frameless hangars is spraying polyurethane foam.

• obtaining a sealed seamless coating without the use of vapor barrier;
• good adhesion to metal, no additional fasteners;
• resistance to temperature changes and moisture;
• elasticity, resistance to cracking during deformation;
• mechanical strength;
• heat, noise, vapor barrier ability;
• Possibility of application both inside and outside the structure.

Any mechanical damage to the thermal insulation layer does not become a problem. Punctures and cuts do not concentrate stress and do not grow. Repair comes down to spot filling of the defect without dismantling the entire insulating structure.

The concept of saving is different for everyone. Someone wants to save money, but wastes a lot of time: they buy sheet materials, or, out of ignorance, outdated and dangerous insulation materials, and then engage in their installation, alterations (inevitably), and suffer from poor quality thermal insulation. In cases where time and quality are the main values, you should choose polyurethane foam.

Insulation "Sandwich" (Double-layer hangars)

They are a three-layer structure. Two layers are galvanized metal sheet, and one is insulation. Mineral wool, glass wool, and polyurethane foam are used as insulation.

The essence of insulation is to place two hangars on top of each other, and lay insulation between them.

It is worth noting that an advisable solution would be insulation using the “Sandwich” scheme during the construction of the building, since carrying out work on a ready-made hangar will be expensive (approximately ½ of the cost of the hangar).

Advantages

Multilayer panels have a number of positive characteristics:

• excellent water-repellent properties;
• installation of wall panels is carried out throughout the year;
• fire safety (the structure does not burn);
• 100% environmentally friendly;
• wide range of colors for galvanized sheets.

Flaws

In most cases, it is the shortcomings that influence the buyer’s choice:

• in the absence of air exchange, condensation may occur;
• damage to a section of material will require replacement of the entire element;
• if the length of the slab is more than 7 m, it will not be able to withstand the additional load;
• improper installation in winter and autumn will lead to icing of the surface;
• fragility of the structure (about 20 years);
• high price.

Sequence of work

Insulation takes at least a week and requires the work of specialists:

1. Before installation, the outer surface of the hangar is cleaned.
2. If necessary, carry out sealing, internal ventilation and electrification work.
3. A grating is installed on the surface of the constructed hangar.
4. They produce insulation with material. First in the end parts, wall parts, and then on the roof.
5. Another frameless hangar is built on top of the insulation, the radius of which is increased exactly by the thickness of the insulation.

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 a treatment for insulating hangars and houses with polyurethane foam and 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 be laid on a frame system, which must be prepared and installed. And these are additional financial expenses. Typically, the frame system is made of metal profiles.
• Secondly, the insulation itself must be protected from the effects of wet vapors, so before laying it, the entire internal surface of 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.

Insulation pie

A rough calculation suggests that the costs of 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.

Insulation with mineral wool

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 the thermal insulation layer with a polymer material that 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.

Spraying polyurethane foam

It should be noted that insulating PPU hangars entails some inconveniences 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 the entrance doors and gates, insulate plastic windows, if available (see more in the article How to insulate plastic windows for the winter - a matter of warmth and comfort). That is, nothing should be left unattended.

What is PPU?

Polyurethane foam or polyurethane foam or PPU is a unique thermal insulation material. It is 90% air, enclosed in tiny bubbles. The shell of the bubble is made of the thinnest polyurethane film.

Foam is applied to the surface using a special apparatus in which the components of the future insulation are mixed. The finished mixture is fed into the sprayer under high pressure. As soon as polyurethane hits the surface, it enters into a chemical reaction with atmospheric air and begins to foam. Due to the capture of air molecules, its volume increases 80-100 times.

This application method allows you to insulate a hangar of any configuration, filling even the smallest joints.

PPU is a material with a high degree of adhesion. The foam sticks and is fixed on the surface of any material, even the smoothest.

It does not require any additional efforts to pre-prepare the surface before application - it is enough to mechanically clean it of dust.

Hangar insulation options

PPU is applied to the surface by spraying special foam under pressure

When choosing a material for insulation, it is necessary first of all to operate with such a significant parameter as the thermal conductivity of the selected material. If we turn to the technical parameters of insulation, then the thermal conductivity value for mineral wool is 0.06 W/mK with a working layer thickness of 30 mm.

For polystyrene foam, this ratio is as follows: 0.04 W/mK with a thickness of 20 mm, but the thermal conductivity of polyurethane foam is 0.03 W/mK with a thickness of 15 mm. These are the best characteristics for high-quality insulation. But thermal conductivity is not the only parameter that builders consider when deciding how to insulate a hangar.

Materials

Insulation systems are attached to the internal or external surfaces of metal structures. These can be sandwich panels, sheet or liquid insulation (ecowool, sprayed polyurethane foam) - determined by the type of structure and scope of its use.

Sandwich panels

Sandwich panels are moisture resistant and do not freeze

Standard sandwich panels are foamed polystyrene foam, mineral wool (density from 100 kg/cubic m) or polyurethane foam (PPU) between steel profile sheets. Manufacturers offer roofing, ceiling, wall, corner “sandwiches” for internal or external installation.

Wide choice of design - the outer sheet can be painted or imitate wood, plaster, masonry. A good option for buildings where high demands are placed on the appearance.

Plate and roll materials

Flexible boards, rolls of natural or synthetic materials - mineral wool, glass wool, polyethylene foam, non-woven fabrics (holofiber, plant fibers) allow you to create an effective thermal insulation system.

Materials for insulating hangars

The problem of cold bridges is solved by using rolled materials laid overlapping. The use of sheet insulation is complicated only by its installation features:

• sheathing;
• fastening elements - adhesives, screws, etc.

The fastening system not only creates additional loads on the metal structure, but also violates the tightness of the waterproofing and vapor barrier panels. Additional “cold bridges” are created. Foil materials simplify the creation of modern multilayer thermal insulation systems.

It is difficult to insulate surfaces with a complex configuration - with protrusions and recesses. In addition, the “soft” insulation of a metal hangar is subject to mechanical stress and to protect it from damage, installation of a “hard” layer of external finishing will be required.

Ecowool, polyurethane foam spraying

The use of liquid heat insulators is a fairly new direction in construction. They will penetrate into any, most inaccessible place, creating a homogeneous continuous coating.

Ecowool is an excellent insulation for frame structures. The technology involves the construction of a rigid structure into which cellulose material is blown. Be sure to use moisture and vapor barrier.

Insulating a hangar with polyurethane foam is the most effective method

Polyurethane foam - insulating hangars with polyurethane does not require any additional fasteners. PPU is simply sprayed onto the surfaces of metal structures - like painting. Several layers are applied. The resulting monolithic surface is not afraid of mechanical damage; it can be left unfinished or plastered or painted. Sheet finishing materials - plasterboard, PVC panels, etc. - can be easily mounted onto a dense frozen mass.

The polyurethane foam system is resistant to moisture and temperature changes, but if direct exposure to UV and water is possible, then additional protective measures should be taken.

It is difficult to insulate arched hangars or other types of frame and frameless metal structures: tent, polygonal, straight-walled polyurethane foam or ecowool on your own. The technology requires the presence of expensive professional equipment and experienced craftsmen. Fastening sheet materials - sandwich panels, rolls, mats - can be done on your own.

To insulate the floor surface, there are also several ready-made solutions using bulk, sheet, and liquid building materials. They can be mounted directly onto compacted soil. If necessary, it is possible to install electric or water heated floor systems.

Important! No need to plan to insulate your hangar on the cheap! First of all, insulation must be effective. The method and materials are selected depending on the functionality of the building

When planning a thermal insulation system, ventilation, air conditioning systems, and other communication lines are provided. High insulation efficiency can be achieved only by competent calculation of insulation “pies” and strict adherence to construction technologies

The method and materials are selected depending on the functionality of the building. When planning a thermal insulation system, ventilation, air conditioning systems, and other communication lines are provided. High insulation efficiency can be achieved only by competent calculation of insulation “pies” and strict adherence to construction technologies.

How to order hangar insulation?

Call specialists or leave a request on our official website. A company employee will calculate the cost of hangar insulation services. A technologist will come to you to draw up a detailed estimate. The visit of this specialist within the city of Moscow is free. You can pay for services after all work is completed.

Prices for insulating hangars

COST OF POLYURETHANE FOAM INSULATION DEPENDING ON THE VOLUME IN M3.

Advantages of insulating vegetable storage with polyurethane foam

PPU is a universal material. It can be used to insulate a hangar from the inside and outside, to waterproof basements and create the necessary microclimate in vegetable storages.

To preserve vegetables until the next harvest, it is important that the correct microclimate is constantly maintained inside the warehouse where they are stored - certain parameters of humidity and air temperature are observed. This can be achieved by using foamed polyurethane for thermal insulation - it not only insulates heat, but also waterproofs it - it prevents both the evaporation of moisture from inside the storage facility and the penetration of its excess from the outside

It is the waterproofing properties that make insulating a grain warehouse with polyurethane foam the optimal option - a low level of humidity is very important for storing grain crops. Otherwise, the grain may bloom, which will lead either to its complete loss or to a decrease in its grade.

In addition, thermal insulation of wooden granaries with polyurethane foam helps prevent woodworms and other harmful insects from breeding in the wood, since the coating has protective properties.

Features of polyurethane foam insulation

The simplicity of the polyurethane foam spraying technology creates the false impression that anyone can handle it, just buy the equipment. Here's what the experts say.

• You should not carry out insulation work yourself. At best, you risk wasting money on consumables. In the worst case scenario, this work is carried out without taking into account the specifics of surface preparation and the material is applied incorrectly. As a result, “cold bridges” and cracks are formed. There will be no sense from such thermal insulation; it will have to be redone.
• Two-component insulation hardens quickly, so it must be applied precisely in layers. When hardening, polyurethane foam expands. The specialist takes this property into account especially when using technology when the material is pumped into the voids between the box and the wall.
• You need to remember the only drawback of polyurethane foam - intolerance to direct sunlight. To protect the insulation, it is enough to plaster it or apply a special paint.

Why do employees of our company trust thermal insulation using polyurethane foam> “PPU Insulation” Moscow

• Using calculations, we determine the thickness of the spray layer. You get a warm hangar without wasting material, and therefore without overpaying.
• Our equipment is compact and fits into a small space. You don't need to vacate the entire room. Passages along the walls are sufficient for work.
• We prepare the surfaces for application, the spraying is applied in an even layer without gaps, cracks, cavities and holds firmly.
• Properly applied polyurethane foam hardens into an even, uniform, seamless layer, which prevents the appearance of condensation and mold.
• We guarantee our work.

Insulation technology

Thermal insulation of arched hangars is carried out using traditional materials: polystyrene foam, expanded polystyrene, basalt wool.

In relation to arched hangars, the concept of “insulating a hangar in 3 days with your own hands” can hardly be applied. Considering the total area of ​​the structure, it will not be possible to cope with insulation on your own. In any case, the work will be carried out by a team of qualified specialists, but what materials will be used is the choice of the owner of the structure. Modern construction companies, even at the stage of erecting metal structures, offer a choice of three options:

• cold hangar. No insulation is provided; the premises are used for storing equipment and things that do not deteriorate due to temperature changes;
• insulated hangar. Thermal insulation is carried out using traditional materials: polystyrene foam, expanded polystyrene, basalt wool. This is an economical way to equip a room, but not the highest quality or durable;
• hangar insulated with polyurethane foam. Thermal insulation is performed using foamed polymer. The layer is thin, strong, sealed and durable.

The radius of curvature of a metal surface can vary depending on the area and height of the interior. But even wide and low hangars are considered problematic objects from the point of view of thermal insulation. It is almost impossible to ensure a tight fit of sheet insulation to the surface. And this is provided that the frame can still be attached smoothly and firmly. Read more about the insulation of metal hangars here - /osobennosti-utepleniya-metallicheskih-angarov/.

When choosing a heat-insulating material, special attention should be paid to its weight. The light metal frame of the hangar should not be overstressed, because in winter it still has to withstand the weight of the snow cover, and this is not small

PRICE LIST for thermal insulation services

The price may change depending on the difficulty of accessing the surface.
Minimum order 30,000 rubles.

will perform seamless insulation of hangars of any geometric shape (arched, hipped, straight-walled) using sprayed polyurethane foam. We work at facilities in Moscow and the Moscow region, and are ready to consider applications from neighboring regions.

Our offer

The group provides professional services for insulating frameless hangars using polyurethane foam or mineral wool. The cost of our company’s services for insulating a hangar with mineral wool is from 1,800 rubles per square meter; when using polyurethane foam, the cost of the service will be from 1,100 rubles per square meter. If you need to get an approximate calculation taking into account the individual design parameters of the hangar, you can use our online calculator, which is posted on the official website. Each customer receives from us the highest quality services, certified materials, competitive prices and a long warranty on work. We are waiting for your calls at the numbers listed in the “Contacts” section or leave a request through a special form on the website. After which our specialists will get in touch as soon as possible.

A metal hangar has advantages over brick and concrete structures. Such buildings are easier and faster to erect; if necessary, they can be easily dismantled and moved to another location. However, the thermal insulation of metal structures leaves much to be desired, and in some cases a warm hangar is needed (for example, if the building is used as a warehouse or workshop). Several standard materials are used for insulation.

Hangar insulation is one of the main conditions for saving in business

Thermal insulation of the hangar will expand the functionality of the room. An insulated building can be used as a sports or shopping complex, as an administrative and even residential premises. Thanks to modern materials, it is possible to create a comfortable microclimate, while the building will comply with technical standards, remain fireproof, and the insulation will not harm health. Insulating a hangar will not be cheap, but as a “side effect” it will solve several other problems.

Noise insulation

Metal structures are poorly insulated from noise. At the same time, sound insulation, along with insulation, is a key point if the hangar is used for domestic or industrial purposes, such as:

• trade area;
• workshop;
• administrative or sports building;
• dormitory;
• vegetable store;
• facilities for keeping animals and poultry.

After insulation, the hangar not only makes less noise when it rains or hails. The interior space is also protected from “regular” background noise from the street.

Heat protection

Thermal insulation maintains a comfortable temperature level in the building. In winter it protects the space from heat loss, in summer - from overheating

This quality of thermal insulation is especially important when the building is used for storage, warehouses or for domestic purposes.

Strengthening

Thanks to several layers of thermal insulation, the building walls receive increased rigidity. After installing the insulation, the metal structure will be protected from another enemy of the base material - condensation, the appearance of which over time can lead to the formation of rust on the walls.

How and with what to insulate a frameless hangar?

As a rule, a frameless hangar is a very large structure. The surface area that needs to be insulated amounts to hundreds of square meters.

Thermal insulation of such structures is quite problematic. Again, the corrugated sheet is to blame. To secure slabs or insulation mats to a smooth surface, it is necessary to install a guide system. But this is not the main problem.

As a rule, a frameless hangar is a very large structure. The surface area that needs to be insulated amounts to hundreds of square meters. Work with rigid polystyrene foam or mineral wool can last several weeks. During this time, during external insulation, the material becomes wet under rain and snow, and during internal insulation, it becomes saturated with condensation. For mineral wool this means a complete loss of properties. We discussed the use of materials for insulating hangars in more detail on the page “Thermal insulation of hangars and warehouses.”

Another point: frameless metal structures are subject to thermal expansion. For central Russia, the difference between the air temperature in winter and summer is on average 50 ºС, that is, thermal deformations will be significant. Vapor barrier film and sheet materials often cannot withstand such loads and tear. Cold bridges appear and moisture penetrates into the insulation. The thermal insulation has to be redone, and the costs will be considerable.

Frameless insulated hangar

On the one hand, construction technology significantly simplifies and speeds up the construction process, on the other hand, it has some limitations. And one of the essential ones is insulation. Since the shape of the hangar has an arched structure, and it is not advisable to attach any additional elements to the arches themselves, including insulation, this does not allow the use of the entire range of heat-insulating materials used in industrial construction. We described the main types of insulation used in the construction of insulated hangars in the article “Insulation of hangars. Technologies. Choice of insulation." The most reliable frameless insulated hangar is considered to be a double hangar with insulation between the arches. Essentially, two hangars of different diameters are being built with insulation between them. Therefore, in order to avoid significant expenses on insulation in the future, it is necessary to immediately include in the project the possibility of insulating it, even if you are building a cold hangar.

Modern prefabricated structures

PPU is the fastest and easiest way to insulate a hangar

As you know, a hangar is a construction structure made using frame or frameless technology. The configuration of the hangar and its equipment directly depend on the operational tasks set by business owners or tenants.

For example, frameless versions of arched structures are designed in such a way that they can be assembled at the place of use within a few days, insulated and used for their intended purpose. But how can we reduce the time it takes to insulate these structures? There are a large number of methods for insulating rooms. For example, for these purposes builders use mineral wool, extruded polystyrene or polyurethane foam. Read more about the insulation of hangars in this article - /kakie-materialy-tehnologii-ispol-zuyutsya-pri-uteplenii-sklada/.

Materials used for insulation of hangars and warehouses

Today, there are a huge number of different materials with which the process of thermal insulation of various buildings is carried out. However, in relation to hangars, the situation changes radically, since based on the size of a structure of this type and since they do not have high thermal insulation characteristics, traditional insulation materials are unlikely to be suitable for it. Therefore, to insulate this type of premises it is necessary to use an integrated approach. You can read more about the materials used for insulation of hangars and warehouses here - /kakie-materialy-tehnologii-ispol-zuyutsya-pri-uteplenii-sklada/.

The following traditional materials are considered to be the most suitable options for insulation:

• Styrofoam. It retains heat well in the room and does not allow moisture to pass through, since, thanks to its porous structure, which includes 98% of air, it has increased waterproofing qualities. However, for complete thermal insulation of a large area, a fair amount of it will be required, since the foam must be laid in several layers. Therefore, it can be considered an excellent option for insulating only small buildings, but not massive hangars, including from the point of view of economic benefits. In addition, the use of such insulation implies the presence of frame elements on which the foam will be installed. As a result, they will significantly increase the load on the hangar, which will lead to a decrease in its service life.
• Mineral wool. It is a time-tested traditional material, which is characterized by increased thermal insulation characteristics and allows achieving an optimal insulation effect. For a hangar, the most suitable type of wool is made in the form of slabs, with guide rails and fasteners installed during installation. It should be noted that insulating prefabricated buildings in this way is not the best option, since additional fastenings will increase the load on the steel sheets, which will negatively affect the stability of the entire structure as a whole, due to its weight. In addition, mineral wool is absolutely not protected from moisture upon contact, as a result of which it loses its original qualities over time. We discussed earlier why you shouldn’t insulate a hangar with ecowool. Therefore, when choosing this particular material for thermal insulation, you will need to provide an additional waterproofing shell in the form of a vapor barrier in order to avoid the greenhouse effect and prevent moisture from entering the mineral wool. At the same time, the vapor barrier material, although slightly, will reduce the thermal insulation characteristics of the entire hangar structure.
• Polyurethane foam. This material as insulation is considered the best in all respects and its choice can be considered optimal. Thermal insulation of hangars and warehouses with its help allows you to achieve maximum effect in achieving the necessary insulation.

In general, the use of polystyrene foam and mineral wool makes it possible to increase the thermal insulation characteristics of the hangar, however, significant financial investments will be required for laying insulation in several layers, as well as for installing fasteners and using a waterproofing board. In addition, a significant drawback when laying polystyrene foam and wool can be considered the formation of seams and gaps through which heat losses occur (more than 60% of all heat is lost through the holes between the fasteners). In addition to all of the above, it is worth noting the fact that polystyrene foam is also flammable.

How and how to insulate a hangar from corrugated sheets

Almost always, before concluding a contract for spray insulation of a hangar, our clients ask many questions about the possibility of using mineral (stone) wool or polystyrene boards. We have made a brief summary for you.

It is possible or not. Cold structures based on metal structures, including hangars made of corrugated sheets , are insulated from the inside. Only this method preserves their external aesthetics and protects the insulation itself from atmospheric moisture. At first glance, with such an arrangement and taking into account the low cost of traditional materials, their use seems effective and profitable. In practice, several problems arise, and not all of them can be solved.

Installation. To insulate hangars with mineral wool or slab polystyrene, you will have to build an additional complex structure with which you can fix the slab, sheet or mat. It is long, difficult and expensive.

Traditional materials are chosen precisely because of their relative cheapness, but in this case it will not be possible to save money or the savings will not justify themselves.

With higher efficiency for insulating a hangar with polyurethane foam, the price may be lower than when using mineral wool. In the best case, the cost of thermal insulation with traditional materials may be lower, but only by 10-15%. At the same time, the spraying speed is up to 800 square meters. m per shift, the rate of insulation with mineral wool is 30-50 sq. m per shift.

What happens in practice with the operation of hangars insulated with mineral wool. It must be remembered that steam is generated everywhere and always, and it is impossible in principle to protect insulation from it 100%, because all materials used in construction, except metal and glass, are vapor-permeable to one degree or another. Plus, seams between slabs and mats are inevitable. And when installing slab insulation, an air gap inevitably remains between it and the wall of the hangar.

Let's consider the process of “water circulation in a separate hangar”, where insulation is done from the inside, as in the photo above.

Moisture tends outward → through the vapor barrier membrane → through the insulation → into the air gap → condenses from the inside on the metal → returns to the insulation.

The usual result of using traditional materials to insulate hangars from the inside is as follows. Mineral wool gets wet (or water accumulates between the seams of polystyrene boards), resulting in a number of problems. The insulation loses its thermal insulation properties. The weight of the cake increases significantly, which can lead to deformation of the frame. Metal structures gradually rust.

In winter, water turns into ice (remember, water expands when it freezes, increasing in volume by 1.091 times, that is, about 10%). This leads to heaving of the layers, tearing of the seams and separation of the insulation from the structure. When large volumes of moisture accumulate, the situation sometimes ends in tearing apart the joints of the hangar structure and causing leaks.

Ideally, when insulating a hangar with mineral wool, the gap between the insulation and the shell should be ventilated, as when insulating facades or roofs.

There is an option to install thermal insulation between the frame itself and the protective shell, as you see in the photo above. But in exploited structures this is problematic. And such hangars are more expensive than those insulated with polyurethane foam.

By choosing PPU hangar insulation with the correct selection of materials and adherence to technology, in just a few days (taking into account the time for calculation, delivery, preparation) you get:

– seamless and always dry thermal insulation, a monolith “tightly” bonded to the metal on every centimeter of area without air gaps; – maximum efficiency with a minimum layer thickness with a mass of only 2-4 kg per 1 sq. m.; – anti-corrosion protection of metal structures; – no risk of leaks.

Insulating a hangar with penofol

Foamed polyethylene foam and polished foil or metallized film are used to produce a new generation of thermal insulation material penofol. It has high heat, hydro and sound insulation qualities, which are supported by the reflective properties of a metallized film that can reflect up to 97% of heat rays. The low thermal conductivity of polyethylene, combined with the reflective characteristics of the foil, effectively protects the hangar from dampness and drafts, providing over 30% savings in energy costs.

The advantages of insulation include:

• elasticity: the insulation is capable of repeating any shape of the insulated surface, which greatly facilitates installation;
• environmental friendliness: polyethylene and foil are widely used in the food industry and do not contain harmful substances;
• high vapor barrier characteristics and hydrophobicity: the material does not absorb condensation and is not afraid of a humid environment;
• fire resistance: class G2 “Refractory materials prone to self-extinguishing”;
• a thin layer of insulation provides high thermal insulation characteristics: 1 cm of penofol is comparable to 8 cm of mineral wool or 4 cm of extruded polystyrene foam;

Disadvantages of foil penofol that limit its use as a heat insulator:

• insufficient density;
• loss of thermal insulation properties due to mechanical damage.

The industry produces two types of penofol:

• foil;
• metallized.

Both of them can have a reflective layer on only one side or be produced in a double-sided version. To facilitate installation, penofol can be applied to an adhesive base.

There is no single recipe for choosing insulation; each object has its own design features, which the customer must take into account. Any method is suitable for thermal insulation of newly constructed structures, because it can be taken into account at the design stage. For hangars that have been in use, it is most advisable to use polyurethane foam insulation. It will not weigh down the structure and will strengthen the arched elements by filling cracks and pores.

Insulation of hangar with Tepofol

Thermal insulation Tepofol is a material made of polyethylene foam and polished foil or metallized film. Tepofol combines thermal insulation, waterproofing and sound insulation qualities. Its reflectivity is very high, thanks to the presence of polished foil, which provides up to 97% reflection of thermal energy rays. And its porous closed structure completely eliminates the possibility of absorption or stagnation of moisture and steam. The low thermal conductivity of polyethylene and its high reflectivity reduce heat loss by more than 30% and effectively protect the surfaces of treated walls from blowing and dampness.

Advantages of Tepofol:

• exceptional elasticity characteristics;
• stability of the original form;
• the material is absolutely safe for human health;
• good hydrophobicity;
• excellent vapor permeability;
• durability and wear resistance (with proper installation, the material will last for decades);
• resistance to corrosion and mechanical damage;
• resistance to atmospheric precipitation;
• high degree of noise and heat insulation;
• biological stability - the material is “not interested” in rodents and insects, mold or mildew does not appear on it;
• ease and convenience of transportation and installation;
• no need for additional care;
• Possibility of combination with different building materials (gypsum, cement, lime, concrete).

Thermal insulation Tepofol® retains all its original properties and characteristics even after many years of use.
Tepofol is produced in 2 types:

• Tepofol foil - provides reflective thermal insulation and has good noise absorption.
• Tepofol metallized - has a high degree of resistance to organic solvents and acids, and also has good mechanical strength.

Both types of material can be made either as a single-sided or double-sided version - when there is a reflective layer on both sides of the coating. Tepofol is also produced on a self-adhesive base (when there is an adhesive coating on one side, which simplifies installation) and Tepofol NPE, in which there are no additional upper layers at all.

Tepofol is used as the main insulation (from 40 to 150 mm) and additional insulation (from 2 to 10 mm) of any structures.

In some cases, it is not necessary to retain heat, but rather to keep the cold inside the hangar (for example, in ice complexes). Tepofol is perfect for this!

For more information on how to insulate a hangar with Tepofol, watch the video:

Water heating of hangars

Convection water heating is used mainly in small hangars where the ceiling height does not exceed 4 meters.
With higher ceiling heights, their effectiveness rapidly decreases. This is due, first of all, to the fact that warm air rises, and forced air circulation systems are not provided. Essentially, we are starting to heat the hangar from the ceiling. And to achieve optimal temperatures, it is necessary to have very good thermal insulation to prevent severe heat loss. These systems are used less and less often when heating hangars, mainly in cases where centralized heating lines are located close together and in small hangars. Using your own boiler room to heat large warehouses and workshops is too energy-intensive.

Air heating of hangars

One of the most common methods of heating hangars today is air heating technology. It is easy to install and inexpensive to maintain. And most importantly, it allows you to warm up huge areas in a short period of time. In such heating systems, the air, passing through air heaters, is heated to the required temperature and supplied to the air ducts for uniform heat distribution inside the room. The possibility of combining the heating system with a ventilation system is also important. In this case, air is taken from the street and, passing through a filtration system, is supplied to the general heating and ventilation system.

One of the main advantages of air heating systems is their versatility. Air heaters can operate on different types of fuel:

• Electricity
• Gas
• Diesel fuel
• Solid fuel
• Waste oils

The use of automation allows you to use these systems both to constantly maintain the required temperature and to heat the room according to the operating mode of the room, which can significantly reduce heating costs. In addition, air systems can also be used for zone heating of a hangar. For example, install air ducts only in personnel work areas or where temperature maintenance is necessary.

The use of these systems is also justified in hangars, where exits to the street are often used or the gates are open for a long time, when moving cargo, traffic and people. In such cases, thermal curtains are installed above the gate or exit, and the intense flow of hot air reduces heat loss.

Air heating systems also include fan heaters powered by electricity and gas. When using fan heaters, air ducts are not installed. Heating equipment is mounted or installed indoors in places where it is necessary to maintain the desired temperature.

Why insulate frameless hangars?

A prefabricated hangar is a structure made of metal profiled sheets bent in a semicircle

A prefabricated hangar is a structure made of metal profiled sheets, bent in a semicircle. They are built in a matter of days, are waterproof, fireproof and provide reliable protection from precipitation and ultraviolet radiation. But they also have a number of serious disadvantages:

1. Inability to maintain temperature. Metal conducts heat well, so it is almost impossible to heat a large room in winter. The costs of using heat guns will “eat up” the lion’s share of the profit. In summer, metal sheets heat up in the sun, and the temperature inside the hangar rises to 40 ºС and higher. These are completely unacceptable conditions for storing products and working people.
2. Low sound insulation. Rain, wind, birds will create constant noise indoors. And if production is located in a hangar, then the sounds of working machines will spread quite far.
3. Icing. When the room is heated, the corrugated sheet also warms up. The snow on the surface of the structure is melting. When temperatures drop below zero, water freezes, forming ice. In large quantities, ice can even deform the structure.

High-quality insulation of a frameless hangar can eliminate all these problems. Read more about the insulation of hangars in this article - /osobennosti-utepleniya-metallicheskih-angarov/.

What requirements must insulation for a hangar meet?

How to insulate a hangar if its design features - material and shape dictate some requirements that the thermal insulation material must meet:

• plasticity - under the influence of temperature changes, the metal surface of the hangar “plays”, i.e. it contracts and expands, so the insulation must be sufficiently plastic so as not to crack from such changes;
• high adhesion – a hangar is a large metal structure, and to insulate it you need a material that has good adhesion and is able to “catch” onto the smooth surface of the corrugated sheet;
• good thermal insulation properties - since the walls and roof of the hangar are very thin, the task of thermal insulation falls entirely on the insulation;
• light weight - frameless and frame hangars are usually built with a vaulted roof, i.e. the walls and roof are a single whole, and it is strictly forbidden to overload such a structure in order to avoid collapse.

All these requirements are met by insulating hangars with polyurethane foam (PPU).

How to choose material

When choosing thermal insulation, you should take into account the design features of the building. When insulating metal hangars, pay attention to the fact that the material has the following characteristics:

• — plasticity (an important quality, because under the influence of temperatures the metal surface of the hangar is capable of contracting and expanding);
• - high adhesion (adhesion that the insulation will need to cling to a smooth metal surface);
• — high thermal insulation properties;
• — low weight of insulation (to avoid additional loads).