What profile of a plastic window is better to choose? Tips for choosing and rating manufacturers. Classifications of plastic windows: which class of PVC profile to choose Characteristics of PVC profile for plastic windows

When choosing plastic windows the consumer has to deal with various parameters of window structures. One of these parameters is the PVC profile class - a value that will tell little to the average buyer. Meanwhile, its operational characteristics largely depend on the class of the profile. Therefore, it is worth analyzing the concept of class regarding PVC profiles in a little more detail, so that the buyer has the opportunity to make a more informed choice.

How did the classification of PVC profiles appear?

The division of window profiles into classes is regulated in the European RAL standard. This is an industry standard that dates back to 1925 and continues to be constantly improved. If we talk about window PVC profiles, the RAL standard describes not only specific requirements for them, but also clear mechanisms for testing the properties of this type of product for its classification.

The classification of plastic window profiles began in the 1960s. This measure appeared as a reaction to the fact that some manufacturers of window structures have taken the path of manufacturing economy-class products. The result of such experiments, which sharply reduce the quality of PVC profiles, was massive consumer complaints. Therefore, it was decided to develop a classification of plastic profiles that would reflect their real quality.

PVC profile classes

To date, the basic European standard that regulates the characteristics of PVC profiles is RAL-GZ 716/1.

The classification includes three types of window profiles:

• class A. According to RAL requirements, the inner walls of the profile must have a thickness of 2.5 mm or more, the outer - 2.8 mm or more;
• class B. Internal walls - from 2 mm, external - from 2.5 mm;
• class C. There are no clear requirements for the wall thickness of PVC profiles.

Thus, class A and B profiles have sufficient consumer characteristics for permanent use in residential premises. Class C window structures are suitable for installation in technical or temporary structures.

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What to choose?

When choosing between window profiles of classes A and B, one should understand the practical difference. In particular, the use of thin-walled profiles (class B) gives a significant loss in window dimensional stability, angular strength and resistance to self-tapping screws. The result may be a shorter service life of the translucent structure, in comparison with windows made of thick-walled PVC profiles (class A). Therefore, for installation in residential premises, windows based on class A profiles are a much more preferable option, although Russian legislation allows the installation of windows with a class B profile.

On the other hand, class B PVC profiles have a significantly lower cost, significantly reducing the cost of window construction. And they can be successfully used where there are no increased requirements for strength and heat-shielding characteristics of windows. For example, when glazing rooms for seasonal use, non-residential and industrial premises.

Summing up

When choosing plastic windows for an apartment or house, you must carefully consider the parameters of PVC profiles. The best option for installation in residential premises are windows based on class A profiles. The Warm Windows company installs high-quality windows based on Rehau profiles in Ufa. You can also buy plastic windows from us in Zheleznodorozhny, place an order for plastic windows in Dolgoprudny and other cities of Moscow Region.

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Classifications of plastic windows: which profile class to choose?

Before replacing plastic windows or doors, buying new ones, you should study the characteristics of the products. They will help you understand what price is fair for different designs what are the advantages of popular products from different manufacturers (KBE, VEKA, REHAU). It is worth paying attention to a less discussed criterion. The quality of PVC windows and doors determines the class of their profile.

Russian and European PVC quality classification

In the European Union, plastic profiles are classified according to the EN 12608 SR standard. It provides quality requirements for unplasticized polyvinyl chloride. It is made from plastic doors and windows. In our country, PVC profile for door and window systems is classified according to GOST 30673-99.

Note that the requirements of foreign and domestic standards are different. IN different countries Specialists traditionally use different measuring systems and conduct construction in different ways. However, these normative documents have common features. Both define durability, heat-insulating parameters and some technical ones, allowing to attribute components to a certain class.

Classification according to the thickness of the profile walls

The key criterion for classifying a profile in European countries is the wall thickness, which determines the dimensional stability and strength of the plastic. The durability of the window, door, the preservation of their shape as they are used, under the influence of loads, depends on it. PVC profile walls are divided into:

• external - shaping, on the front side, located outside the product, visible in the installed structure from the inside and outside of the room;
• internal - profile walls, invisible in the installed structure. Their surfaces support the glass and face the base wall on which they are mounted.

Profile systems belong to:

• A-class - external walls from 2.8 mm, internal - from 2.5 mm;
• B-class - external walls from 2.5 mm, internal - from 2.0 mm;
• C-class - wall thickness does not correspond to the above indicated ranges. Strict requirements are not imposed on C-profiles.

Tests for compliance of various profile systems with DIN EN 12 608 showed: for B-class profiles, in comparison with A-class analogues, the angular strength is lower by 25%, dimensional stability - by 15%, resistance to pulling out screws - by 20%. B-profiles are less durable, but much cheaper and more popular, including in Russia.

Most manufacturers of plastic windows in the post-Soviet space produce profile systems of classes A and B. Different profiles satisfy different consumer needs. The choice of any is always justified. It is advisable to use B-class profile structures in glazing non-residential, seasonal, industrial facilities. The strength of products increases reinforcement, an increase in the number of chambers.

Remember: a profile system belongs to a specific class only if both values ​​\u200b\u200bare the thickness of the internal and outer walls- meet the standard. Figuring out the profile class is easy. Ask the seller to provide a certificate of conformity of the product to the specified requirement.

Products from A-class profile systems insulate heat better and last longer. However, a high-quality window, door must meet other requirements. When choosing designs, it is worth considering the thickness of the window, door sash, frame, the number of hollow chambers. You should choose durable double-glazed windows, reliable fittings.

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Classification of plastic windows, types of double-glazed windows and profiles for PVC windows

Perhaps, when choosing the best option, many are wondering what kind of windows there are. The question is very capacious, but it could be unmistakably answered with just one word - different. No matter how trite it may sound, but these products can be very diverse.

Window types are determined by various criteria and features. These are the types of profiles that are used for plastic windows, and the types of glass, and the purpose of the design, and the properties of double-glazed windows, and much more.

Classification depending on the opening mechanism:

• Blind window. Such a design can be an independent unit or part of a large plastic window in which only some of the shutters open. It is inexpensive and does not require additional accessories. Of the shortcomings - the complexity of care. Washing a window is often problematic and not very convenient.
• Swivel opening mechanism. This is a traditional swing type design. It is easy to open, but it requires free space indoors.
• Folding system. This mechanism allows you to easily open the window into the room. The design is compact, makes it possible to use the ventilation mode.
• Tilt and turn opening. This is a symbiosis of the two mechanisms described above. Convenient and functional option for residential premises.
• Shtulpovy mechanism of opening. Such a system is relevant for double-leaf systems and provides for closing "sash to sash". This is the best option for large structures (width 1200 mm or more).

Plastic windows are divided into types according to the number of sashes: one-, two- and three-leaf. According to their functional purpose, they can be:

• soundproof;
• energy saving;
• tinted;
• impact resistant.

Types of profiles for PVC windows

On the territory of Russia, the classification of profiles by type is determined according to GOST 30673-99. Yes, by functional purpose they are divided into main and additional. Depending on the degree of adaptation to climatic conditions, all profiles can be combined into two groups: normal (the average monthly temperature in January is not lower than -20 ° C) and frost-resistant design. Profile classification is also carried out based on the thickness of the outer walls (see table below).

Other classifications exist, such as finishes, heat transfer, etc.

Types of double-glazed windows

A double-glazed window is the basis of the design. His choice is very important. It is quite logical that all buyers are interested in what double-glazed windows are. In the most general view can be divided into one- and two-chamber. This is a popular classification. Single-chamber ones are often placed on loggias. They consist of two glasses and an air chamber. Two-chamber most adapted to the conditions of our climate. As a rule, it is these double-glazed windows that are found in residential buildings of our compatriots.

A cut of a double-glazed window

If you want to learn more about what double-glazed windows are, you should consider them in terms of glass. They may have different thickness(for example, external 4 mm, and internal - 6 mm), additional improved characteristics.

Protection class

If you decide to purchase glasses with a protective film, you should pay attention to the types of double-glazed windows depending on the protection class. There are three levels of protection:

• Class "A". Minimum stability in comparison with other classes. At the same time, the glass calmly withstands a thrown stone (even a brick), preventing intruders from entering the room.
• Class "B". Glass withstands impacts of medium destructive force. Only prolonged exposure can break it.
• Protection class "B". In such a product there will be no through hole even when hit by a large destructive force (for example, a shot).

Types of double-glazed windows are determined by the characteristics of the glass itself. For example, energy-saving double-glazed windows. special coating makes them energy efficient. The high level of heat saving allows you to significantly save on heating in cold weather. Continuing to talk about what double-glazed windows are, it is worth mentioning anti-vandal products with triplex. Multi-layer film does not impair visibility. This makes the glass very durable. If your apartment has a panorama of a noisy and busy street, you should opt for soundproof double-glazed windows. On the sunny side of the house, tinted ones can be used. When working with professionals, you will not have to understand the varieties of systems, profiles, and accessories for a long time. The employees of the company will provide all necessary information(double-glazed windows, views, photos) and will help to make right choice.

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Window classification

Classification.

At all times, when designing buildings, architects gave great importance windows and paid special attention to their development. The placement of windows on the surface of the walls, the size of the openings, the shape of the lintels have always been important tasks for architects in the design process. For a holistic, large-scale perception of buildings special meaning devoted to the manufacture of window coverings. This is how facades were created, which, thanks to the overall harmonious impression, reflected the style of a particular time. In addition to a strong influence on the appearance of buildings, windows, to a large extent, affect the quality of the interior and the comfort of housing.

In the recent past, the implementation of architects' ideas in terms of the shape, color and size of windows has been a significant problem. For new houses, architects designed beautiful facades with elegantly painted windows, but in reality, their production, with rare exceptions, was reduced to a dull and faceless row of typical carpentry. Most people refer to windows as ordinary openings in the wall, created for lighting, ventilation and, as a maximum, to obtain aesthetic pleasure from the surrounding nature. However, architects consider modern glazing as a very important element of the design, construction and operation of the future home.

Today, windows function as integral components of complex building outlines. Nowadays, windows have become part of complex technological systems that control light, ventilation, humidity, dust, sound, and even infrared and ultraviolet radiation. And no component of a building has such a serious impact on the project as a window: the perception of space, the relationship with the environment, the operational parameters of the building, the details of the exterior and interior. Nowadays, manufacturers offer architects more and more options for a variety of window structures and designs. : countless variations in degrees of transparency, dozens of types of frames and ways to close them, a variety of insulating materials and equipment for security systems. In terms of energy saving, windows successfully compete with insulated, insulated building facades. For the development and installation of windows in a house, the climate, location and orientation of the building on the ground, as well as the terrain itself, are extremely important. In the materials of this issue, we will try to give our readers the opportunity to navigate the boundless ocean of modern window technologies, so that when choosing windows for their home and negotiations with various supplier companies, they could quite confidently operate with terms, concepts and definitions, understand what a “glazed unit”, “profile”, “low-emission glass”, etc. is. A wide range of modern windows makes it possible classify them according to many features, some of which can be understood only by narrow specialists. Therefore, we will describe only some of them (the most common features and classes of modern windows).

Classification of windows according to the material of manufacture.

Today, most ordinary citizens know: windows are “metal-plastic” and “wooden”, and the smaller part has heard about “aluminum”. We want to clarify and talk about the materials from which modern window structures are made. Today, when the term “ metal-plastic windows”, strictly speaking, mix two definitions into one: in modern window technologies distinguish between actually metal-plastic and plastic, more precisely PVC structures. PVC (polyvinyl chloride) is one of the earliest artificial materials. It was first created by the chemist Regnald in 1835. Beginning in 1912, the search for opportunities for the industrial production of PVC began, and already in 1931, the BASF concern produced the first tons of this material (although at that time the goals of its use were very far from manufacturing window frames). In the early 50s, first in the USA and then in Europe, PVC began to be actively used as a material for window frames. The very first patent for the production of PVC windows and frames was registered in Germany in 1952. The first PVC frames were a metal base lined with soft or semi-soft PVC. A little later, the production of profiles made of solid PVC began, which was partially reinforced with wooden or metal inserts.

So, modern windows can be divided according to the material of manufacture into the following main classes: plastic (PVC) windows; metal-plastic; wooden; aluminum.

Plastic (PVC) windows.

The most common window structures today are, of course, plastic or made of PVC. PVC windows have fairly high performance, they are reliable and practical, have high thermal insulation, and fire safety. If necessary, you can choose plastic windows covered with fine wood veneer, which combine the texture and aesthetics of wood and the quality of plastic. However, it must be borne in mind that they must be made specifically for our climatic conditions, since not all products on our market, especially of little-known firms, can withstand the strong temperature fluctuations characteristic of our country.

Nevertheless, almost all window manufacturers take into account the peculiarities of our country, focus on them, releasing models with multi-chamber profiles and double-glazed windows, additional seals, etc. The convenience of plastic windows lies in the fact that they are a single structure that is easy and quickly installed, as well as quite tight and protects the room from dust, cold, noise. In turn, modern PVC windows have their own weak spots, which manufacturers are trying to solve with constructive methods. The first and most important thing is the violation of natural air exchange and humidity in the room due to the extreme tightness of the structure. This problem is solved by systems supply ventilation or window structures with installed ventilators.

Metallic windows.

Such windows are, in fact, a prefabricated structure - they use a PVC profile and a reinforcing reinforcement made of galvanized steel. Therefore, metal-plastic windows can be considered more durable than plastic ones while maintaining all their positive properties. However, the main disadvantage of PVC windows is the violation of air exchange, which is also inherent in metal-plastic windows, and in fact, all modern window structures, regardless of material, from which they are made, whether wooden or aluminum. Wooden windows. The oldest and most traditional window material is wood. We don't mean those wooden windows, which are still installed in old houses (shrunken, cracked, painted many times), and completely different - modern, environmentally friendly, made in compliance with all the rules, often from valuable species: mahogany (meranti), oak, larch, eucalyptus , ash. It should be noted that usually the price of wooden window structures is higher than PVC or metal-plastic windows.

Aluminum windows.

Such windows in residential buildings are used less often, they are more in demand for public buildings and industrial facilities. There are several reasons for this, in particular, purely psychological ones: aluminum, as a material for making windows, is rather unusual, moreover, it is perceived as a cold metal.

This is true, it has a high thermal conductivity, however, profiles made of aluminum can be both cold and warm. In the latter case, in the manufacture aluminum window heaters and sealants are used, as well as technologies that allow to achieve higher heat transfer resistance and normal thermal insulation. Aluminum profiles, due to their high strength and manufacturability, are most often used for glazing large surfaces - shop windows, winter gardens, stained-glass windows, warehouses, roofs, various complex curved surfaces, etc. You can also note such combined structures as aluminum-wood or wood-aluminum. These are specific aluminum structures, on the inside of which there are wooden linings. Thus, undoubtedly, the good qualities of wood (for example, thermal protection) are simultaneously enhanced by an aluminum profile, which protects the wood from environmental influences.

In general, all the considered types of materials used for the manufacture of windows are completely different. Of course, the championship in terms of price-quality ratio when used in city apartments remains with plastic windows (PVC), but both wooden and aluminum structures, due to their qualities, can be in demand in certain cases.

Classification of windows according to the type of opening.

All old typical windows were arranged and opened in exactly the same way - almost all of them were hinged, rotated around a vertical axis, in rare cases, the vents above them were hinged and rotated around a horizontal axis. The advent of modern fittings made it possible to design windows that radically expanded the possibilities and methods of opening them. However, all methods of opening windows can be reduced to several main classes, within which there can be various variations, mainly due to the requirements of customers for each specific design.

Blind (unopenable) windows (Fig. 1). Their design is clear from the very definition - they do not open. Such windows are mainly installed in high-rise buildings and where they are required for safety reasons. The big drawback of such windows is that they require compulsory, forced ventilation for the premises, and they are difficult to clean. Usually specialized companies do this.

Hinged (turning) windows (Fig. 2). A traditional and well-known type of window from the old days. From an economic point of view, this is perhaps the most profitable option: it requires a minimum of components. The window opening can be fully opened, and there is nothing difficult in washing such windows.

Hinged windows (Fig. 3). From the very name of these windows it follows that they open at the top (that is, they recline). It is not easy to get to the outer glass of such a window, for example, if you need to wash it.

Tilt and turn windows (Fig. 4). Such windows are opened both by traditional (hinged) and folding method. The desired opening option is selected by the position of the handle. The pivoting position, in which the handle is turned horizontally, allows air to reach the glass from the back of the sash, and also ensures unhindered air flow. If you want to achieve a folding position of the sash, the handle turns vertically upwards. This position is very convenient for ventilation, especially in winter period time. At the same time, drafts are excluded due to the fact that fresh and cold air enters from the window from above. Currently, tilt-and-turn windows are the most common in the construction of new houses, as well as when replacing the old “pre-perestroika joinery.” Other options are lifting, sliding , lifting-swing, lifting-turning and many others, we will not consider, because they are rarely used for any specific use.

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When choosing plastic windows, the consumer has to deal with various parameters of window structures. One of these parameters is the PVC profile class - a value that will tell little to the average buyer. Meanwhile, its operational characteristics largely depend on the class of the profile. Therefore, it is worth analyzing the concept of class regarding PVC profiles in a little more detail, so that the buyer has the opportunity to make a more informed choice.

How did the classification of PVC profiles appear?

The division of window profiles into classes is regulated in the European RAL standard. This is an industry standard that dates back to 1925 and continues to be constantly improved. If we talk about PVC window profiles, then the RAL standard describes not only specific requirements for them, but also clear mechanisms for testing the properties of this type of product for its classification.

The classification of plastic window profiles began in the 1960s. This measure appeared as a reaction to the fact that some manufacturers of window structures have taken the path of manufacturing economy-class products. The result of such experiments, which sharply reduce the quality of PVC profiles, was massive consumer complaints. Therefore, it was decided to develop a classification of plastic profiles that would reflect their real quality.

PVC profile classes

To date, the basic European standard that regulates the characteristics of PVC profiles is RAL-GZ 716/1.

The classification includes three types of window profiles:

• class A. According to RAL requirements, the inner walls of the profile must have a thickness of 2.5 mm or more, the outer - 2.8 mm or more;
• class B. Internal walls - from 2 mm, external - from 2.5 mm;
• class C. There are no clear requirements for the wall thickness of PVC profiles.

Thus, class A and B profiles have sufficient consumer characteristics for permanent use in residential premises. Class C window structures are suitable for installation in technical or temporary structures.

We will answer all questions!

If you want to understand the criteria for choosing a PVC window, then one of the first indicators that experts recommend paying attention to is a PVC profile. Products are presented in various classes, each of which has its own characteristics. Having got acquainted with them, you will be able to choose the optimal type window construction.

What should be a modern PVC window profile

To date, the main European quality standard for PVC window profiles is RAL-GZ 716/1. It defines the following parameters for PVC products:

• class A: external walls should reach 2.8 mm in thickness, internal - 2.5 mm;
• class B: the thickness of the outer walls should not be less than 2.5 mm, the inner - 2 mm;
• class C: external and internal walls can have almost any wall thickness.

Naturally, it is better to give preference to the profiles of the first two classes, which are distinguished by excellent parameters. But class C products, if used, are only for installation in technical rooms or for temporary service.

What is the difference between class A profiles and class B profiles?

Although the wall thickness of the profiles of these two classes differs slightly, their consumer characteristics are very different. When tested, class A products are ahead of class B products in many ways. If we talk about compliance with DIN EN 12 608, then the strength reduction for a profile with a reduced wall thickness is 25%, and the pull-out resistance of self-tapping screws is also reduced by 20%, by 15 % decreases the ability to maintain its shape. Therefore, PVC windows, in the design of which a class B profile is used, do not last as long as products of the first category.

And yet the class B profile has an important advantage - a more affordable cost. It is for this reason that such products are especially popular.

Benefits of each class

Almost all manufacturers of profiles for PVC windows, whose products are presented in the markets of post-Soviet countries, offer products of classes A and B. Only the manufacturer VEKA offers consumers products of only the highest category.

Thanks to various types profiles, their manufacturers try to satisfy the various wishes of their customers. Therefore, each consumer can choose the most suitable product.

Class A profile will become the best option in the following cases:

• when the client is used to getting only the best and is not ready to compromise on quality;
• large cash costs are not a problem.

Class B profile may be preferred in the following cases:

• there is no need for a large margin of safety and thermal insulation indicators, which are inherent in products of the highest category. This choice is fully justified for the installation of plastic windows in non-residential premises, buildings with seasonal residence or industrial facilities;
• The quality of a window structure is determined not only by the class of the profile. For example, to achieve an increase in strength, you can use reinforcement. And the installation of a double-glazed window with several chambers will help to increase the heat-saving parameters.

Russian legislation allows glazing of residential real estate using profiles of classes A and B. Thanks to this, the consumer can make his choice, taking into account the purposes and purpose for which a plastic window is purchased. The financial side of the issue is also of no small importance. After weighing all the reasons in detail, you can opt for the most suitable form profile.

Plastic windows firmly occupy a leading position. They are distinguished by a high level of heat and sound insulation, in addition, they provide the opportunity to choose fittings, the method of opening the window and the color of the profile. You can also choose a double-glazed window with necessary quantity cameras. But few people think that it is the window profile that ensures the strength and durability of the entire structure. In the article, we compare plastic window profiles of different characteristics and manufacturers.

General information about the profile of plastic windows

On average, the profile thickness of plastic windows varies from 58 mm to 86 mm, but some companies produce products up to 127 mm wide.

Its interior is hollow, but separated by bridges that create several air chambers. A special technical calculation determines their size and location. The wider the profile, the greater the number of chambers in it that increase the heat-preserving properties. Another characteristic of the profile system is the filling width, which determines what type of double-glazed windows can be installed in the profile. They come in one or two chamber types, the width of the glass in a standard double-glazed window is 4 mm (M1 brand).

Each cavity has its own purpose:

• for the outflow of water;
• fastening accessories;
• responsible for strength, etc.

The color of the profile can be varied, the color is applied in several ways:

• co-extrusion method - multilayer films create a kind of barrier that allows the product to withstand dynamic loads without damage;

• lamination - with texture imitation, for example, marble or wood;
• monochromatic coloring.

Characteristics of PVC profile for plastic windows

Material

• This product is made of a kind of plastic - white polyvinyl chloride.
• The material is highly resistant to chemical attack by alkalis, solvents, acids and mineral oils.
• It is harmless to humans and the environment.

• Polyvinyl chloride, due to its distinctive properties, makes it possible to manufacture frames for double-glazed windows not only rectangular or square shape, but also in the form of arches, triangles, circles and so on. Thus, giving absolutely any simple or complex configuration to the window, allowing you to translate into reality even the most non-standard idea designers and architects.

Design

The inner part of the plastic body of the profile is divided by longitudinal partitions, which in turn form cavities (air chambers). The minimum number of chambers in the profile is 3, the maximum is 8. The number of chambers determines the degree of thermal insulation and sound absorption of the window, the more air cavities, the higher these figures. It should be noted right away that 3- and 5-chamber profiles are popular.

Reinforcement

To give rigidity, the profile is additionally reinforced. Metal carcass provides the necessary structural strength and reliability during operation of the window. Galvanized steel is used to reinforce the profile, so it does not deform under temperature changes or other environmental influences.

• L-shaped type of reinforcement - a metal insert is installed along two walls;
• U-shaped type of reinforcement, where the metal reinforces three walls;
• Closed type of reinforcement - a metal insert is located along four walls.

For window structures that have double-glazed windows up to 1900 mm in height, a U-shaped reinforced profile is suitable. However, for plastic windows of large dimensions, for example, for a loggia or a balcony, a profile with closed reinforcement is required.

Profile class

The wall thickness of the profile determines its belonging to a certain class:

• Class A - profile wall thickness must be at least 3 mm;
• Class B - profile, where the wall thickness is from 2.5 mm;
• Class C - non-standardized wall thickness.

As a result, the width of the profile of plastic windows directly depends on its class. The higher it is, the correspondingly wider the profile.

Comparison of plastic window profile manufacturers

On Russian market many domestic and foreign manufacturers present their products. The leading positions in the rating of profiles for plastic windows are occupied by companies:

• Germany - REHAU, VEKA, KBE, SALAMANDER, SCHUCO, KOMMERLING;
• Slovakia - INTERNOVA;
• Korea - LG CHEM;
• Belgium - DECEUNINCK;
• Russia - MONTBLANC and PROPLEX.

VEKA

• The profile is produced according to German technology in Russia, they always correspond to class A, are suitable for all regions, with any climate.

• Profile systems from VEKA are presented in 8 types, the installation depth of which is from 58 to 90 mm, and the number of cameras varies from 3 to 6. As a result of all the improvements, this profile is reliable, environmentally friendly and aesthetic.

REHAU

• World famous profile from a German company.
• It represents these products from economy to elite class, taking into account any weather conditions.
• Mounting width from 60 to 86 mm, number of chambers - from 3 to 6.

• Windows with a REHAU profile are distinguished by a high level of sound insulation (class 5), good thermal insulation, and, if desired, can also be with gray seals.
• Excellent value for money and quality.

SCHUKO

This company is equipped modern equipment, uses quality materials and the staff consists of qualified personnel. Thanks to this, it produces the entire line of profiles, fittings and seals.

• Window profile designs are presented with a width of 60 to 82 mm, the number of chambers is from 3 to 8.
• SCHUKO windows are easy to use and have good anti-burglary properties.

MONTBLANC

On the territory of Russia there are 4 manufacturer's plants for the production of profiles.

• The Russian-Austrian company is equipped with a production base where developments are being carried out and the latest technologies are being introduced.

• The Mont Blanc line contains 6 types of profiles, where the mounting width is from 58 mm to 120 mm, cameras - from 3 to 6.
• The durability of the profile system (60 years) is achieved with the help of specially designed performance characteristics for harsh climates.

PROPLEX

• The plant, located in Podolsk, produces a profile on German equipment using Austrian technologies.
• These products are produced in widths ranging from 58 mm to 127 mm, chambers - from 3 to 6.
• The original recipe makes it possible to produce a high-quality profile with impact strength and special whiteness.

You can also compare the characteristics of plastic window profiles according to the tables below.

Profiles of the German company KBE

It is believed that the German profiles of plastic windows are superior to the products of other manufacturers in terms of quality, whiteness of color, and technical specifications. They do not lose their properties even during a long service life, perfectly withstand almost any dynamic load and significant temperature changes (from -50°С to +50°С).

The KBE company manufactures and supplies 2 types of the most popular profiles: KBE Etalon and KBE Expert.

KBE Etalon - three-chamber profile

• The mounting width is 58 mm;
• the width of the front walls - 3 mm;
• the thickness of the double-glazed window can be up to 34 mm;
• 3 cameras in the frame, sashes, impost (horizontal and vertical window bars);
• can be used in harsh conditions (-60°C);
• service life - 40 years;

Advantages:

• with a profile width of 58 mm, it has 3 air chambers, their size and optimal position ensure resistance to heat transfer. Such windows have a high degree of tightness, which exceeds the existing requirements of GOST by 5 (!) times, which guarantees the complete absence of dust and drafts in the room;
• two sealed gaskets provide excellent sound insulation (up to 46 dB). The profile is additionally equipped with horizontal lintels, thereby increasing the strength of the lock when the window is closed;
• stiffening ribs are installed in the KBE profile, which provide additional strength to the window structure. Also, special stops allow to increase the rigidity, with the help of which the exact location of the reinforcing metal insert is achieved.

KBE Expert - five-chamber profile

• Mounting width is 70 mm;
• the width of the front walls - 3 mm;
• the thickness of the double-glazed window is up to 42 mm;
• 5 cameras in the frame and sashes, 3 or 4 in the impost (horizontal and vertical window bars);
• Suitable for use in harsh environments (-60°C);
• sealing contours correspond to class A;
• service life - 40 years;
• in the manufacture of environmentally friendly materials are used, does not contain lead.

Advantages:

• five-chamber structure allows you to achieve best value thermal insulation, such a profile is able to retain heat 20% more than typical three-chamber systems. You can achieve excellent sound insulation by installing wide double-glazed windows in a 70 mm profile;
• 13 mm profile groove allows you to install anti-burglary fittings, thereby ensuring the safety of the room;
• the KBE Expert profile has additional horizontal bridges, thanks to which the handles and hinges will be securely fastened;
• when installed, the mounting seam is wider by about 20%, in turn allowing for additional insulation.

Estimated cost of windows from KBE profile

An important factor when choosing one or another double-glazed window is its price. Often it is decisive, but the German window profiles high quality cannot be cheap. Below is the approximate market value in Russia.

• On average, a single-chamber double-leaf window with dimensions of 140x130 cm, in which one sash is of a deaf type, and the other is a tilt-and-turn one, will cost:
  • from a profile of 58 mm from 7500 rubles,
  • from 70 mm - from 10,000 rubles.

• The price of a two-chamber three-leaf window with a size of 140x203 cm, in which the first sash is rotary, the central one is of a deaf type, and the third one is tilt-and-turn will be from:
  • from 58 mm profile 13,000 rubles;
  • from 70 mm 14500 rub. and higher.

• When buying a balcony block with an opening door measuring 210x67 cm and a blind window - 140x136 cm, you will have to pay at least:
  • from a profile of 58 mm 11,000 rubles;
  • from 70 mm from 13000 rub.

What to look for when choosing a plastic profile with a double-glazed window

In order to determine what profile thickness is needed, one should have basic knowledge about a double-glazed window, because up to 70% of heat losses occur through it.

This transparent element consists of 2 or more glasses that are hermetically connected to the frame. Between them, a chamber (air gap) is formed, filled with rarefied air or an inert gas, such as argon or krypton. This kind of filling is used in the production of energy-saving double-glazed windows.

A single-chamber double-glazed window is a design of 2 glasses of 4 mm each and air gap 16 mm, abbreviated as 4-16-4. Thus, its mounting width is 24 mm. A construction equal to 36 mm is obtained from a two-chamber double-glazed window, which consists of 3 glasses of 4 mm each and 2 layers of 10 mm each - 4-10-4-10-4.

Therefore, an appropriate profile is selected for the required double-glazed window. For example, optimal solution For ordinary apartment or at home, a 5-chamber profile with a 70 mm installation width and a 30 mm double-glazed window will serve, where a heat-reflecting coating should be applied to one glass.

If the windows face the north side and a road loaded with cars lies nearby, then the following option is suitable in this case: a 5-chamber profile with a depth of 86 mm, supplemented by a 32 mm double-glazed window with a protective noise-insulating film.

When a balcony (loggia) is combined with an adjacent room or it is planned to make a small office (rest room) out of it, then the profile should be 5-chamber with an installation depth of 86 mm, and the double-glazed window should be energy-saving, two-chamber with a width of at least 40 mm.

For simple insulation of a balcony, a 60 mm 3-chamber profile and a 30 mm single-chamber double-glazed window are suitable.

But it is not enough just to choose the optimal PVC profile and double-glazed window. It is equally important to entrust the installation of the finished window to professionals. Otherwise, no matter how expensive the design is, poor-quality installation will cancel all its high characteristics.