Quality of window profiles. Which profile is better to choose plastic windows from? Choosing a profile manufacturing company

When purchasing windows, clients most often know almost nothing about the profile and other components used for assembly. To simplify the formulation as much as possible, window profiles are the elements from which the framework of frames and sashes is made. Their choice is influenced by many factors that are recommended to be taken into account. The profiles are responsible for the stability of window structures, energy saving, sound insulation, appearance and tightness, the durability of windows also depends on them.

Customers usually receive information about the characteristics of PVC systems from the manager in a highly compressed form and may make a mistake in their choice. After all, they do not have basic knowledge and time to think different options. As a result of such actions, buyers do not get what they wanted. To avoid falling into such situations, you need to fundamentally change your approach to the ordering procedure. Our article will tell you how to choose a profile for plastic windows and what else you need to pay close attention to.

What to consider when choosing a PVC profile

To commit happy shopping windows, it is necessary to correctly arrange the sequence of actions. First of all, you will need to find out before you order plastic windows, which profile is better. That is, first the brand and type of system are selected, and then the manufacturing company. To find a suitable system, you need to comprehensively consider several criteria.

Profile class

The set of industrial standards RAL-GZ 716/1, which is relevant for EU countries, provides for 3 classes of window profiles - A, B, C. This division and the requirement to mark systems protected buyers from purchasing products that do not meet their requirements. Systems between themselves different classes differ in 2 main characteristics:

• composition of raw materials for co-extrusion of profiles;
• thickness of external and internal walls.

The service life, reliability and aesthetic appearance of windows depend on the quality of raw materials and the thickness of the plastic.

The durability of class A products ranges from 40 to 60 years, and class B is only 20 years. Class C profiles will last only 5 years, but they are not commercially available.

Profile width and number of air chambers

The width (installation depth) and the number of chambers affect both the stability of the windows and their heat-saving properties. The larger these parameters, the warmer and stiffer the structures assembled from such a profile. Today on the market there are systems that have from 3 to 8 cameras and installation depths from 58 to 127 mm.

Thickness of external and external walls

These parameters affect the strength, durability and level of load resistance. For profiles of different classes, these indicators differ as follows:

A-class– the outer walls must exceed 2.8 mm, and the internal jumpers must be at least 2.5 mm;
B-class– the minimum allowed by the standard for external walls is 2.5 mm, and for internal walls – 2 mm.

The thickness of the profile walls also determines the level of noise absorption of window structures and their energy efficiency.

With the same number of chambers and the same installation depth, class A windows are warmer and quieter than class B models.

Reinforcement

Plastic windows without reinforcement can be deformed due to the load from large sashes that have heavy weight. This process entails depressurization of the structure. To prevent this, special metal inserts are inserted into the internal chambers. They differ from each other in cross-section and wall thickness, which should not be less than 1.2 mm. Their optimal thickness is 1.5 mm.

Today, leading European manufacturers of premium systems are actively replacing metal liners with elements made of durable fiberglass. Without sacrificing strength, they reduce the weight of windows and increase their energy efficiency.

Environmental friendliness of PVC

When making profiles, various stabilizers and modifiers are added to pure PVC to improve the strength, color and heat resistance of the products. Previously, many manufacturers used additives that contained harmful lead. Although studies conducted in Europe partially dispelled buyers' fears and proved that PVC is harmless to health, fear of this metal remains. In addition, lead is undesirable in plastic recycling. As a result, manufacturers replaced the harmful additive with a new, completely safe stabilizer, CaZn.

The biggest concern is not the certified products, but the profiles made in artisanal conditions. Such products may contain lead and other substances harmful to health. In order not to order windows from such components, you need to require a certificate of compliance with environmental safety requirements.

Maximum glass width

Different profiles have different maximum thicknesses of double-glazed windows that can be installed in windows. Typically, this parameter directly depends on the installation depth of the system. The larger it is, the thicker the double-glazed windows can be used to complete the windows.

With the advent of selective glass, there was no longer a need to use thick double-glazed windows to retain heat. Three-chamber models are recommended for use only in northern regions or in noisy areas (to increase the level of sound absorption of windows).

Number of sealing circuits

Modern profile systems have 2 or 3 sealing circuits. The tightness class of structures depends on their number. If the windows are planned to be used in conditions of high wind loads or at very low temperatures, it is advisable to give preference to profiles with 3 sealing contours.

Rebate depth for installation of double-glazed windows

This parameter is rarely paid attention to, although it is important. The depth of the rebate affects the likelihood of condensation occurring around the perimeter of the double-glazed windows. For profiles with a short landing distance, the glass around the spacer quickly cools in winter. This leads to the formation of condensation. To reduce the risk of it falling out, it is recommended to give preference to systems with a rebate depth of at least 20-21 mm.

Lamination

Majority window companies Additionally, we provide plastic lamination services. Its essence is to apply a polymer film with a plain or tree-like decor on one or two sides of the profile. If you plan to install colored windows at a facility, it is recommended to find out exactly what coatings the manufacturer offers.

During the search process, you cannot limit yourself to studying profiles. The thermal characteristics of windows depend no less on double-glazed windows and fittings.

How to choose a suitable plastic profile if you need warm windows

To figure out which profile to choose for PVC windows with high energy efficiency, you first need to understand how heat is retained indoors. Fittings, double-glazed windows and, of course, the profile system are responsible for this process. Most heat is lost through the translucent filling, so you need to take care of this part of the window structure first. However, without taking into account the characteristics of the profiles, it is impossible to complete this task, since there are 2 ways to increase the energy efficiency of windows:

1. Install thick double-glazed windows– such integration is only possible in structures assembled from profiles with an installation depth of 70 mm or more. The number of internal cameras in such windows is usually 5-6 pieces.
2. Install single-chamber double-glazed windows with selective coating– such installation does not require a powerful profile. However, the use of 3-chamber systems with an installation depth of 58-60 mm will lead to heat leakage in the area of ​​the sashes and frame, so a 5-chamber profile would be the best option.

To make warm windows With any type of double-glazed windows, it is necessary to use profiles with increased installation depth for assembly. Otherwise, the energy efficiency of the structures will be insufficient to maintain a comfortable temperature in the interior.

Which profile is better if you need large windows?

Large structures experience high loads. They must withstand the weight of heavy double-glazed windows and gusts of wind. Since not all buyers know when ordering large plastic windows which profile is best to choose, they may subsequently encounter deformation of large-sized structures. To avoid this, you need to follow several recommendations:

• give preference to a multi-chamber A-class profile with an external wall thickness of 3 mm and an installation depth of 80-86 mm;
• order closed reinforcement with steel liners with a wall thickness of 1.5 mm;

Based on these two points, you can choose big windows that will last long years and won't cause any trouble.

Which profile is suitable if you need colored windows?

Laminated, painted and lined with acrylic – these are the types of colored windows. All of the listed plastic window profiles are on sale today, but most buyers do not know how to choose the most suitable one. In order for designs to fully meet the client’s needs, it is necessary to comprehensively evaluate:

• service life of decors;
• operating conditions of coatings;
• cost of color profiles.

In addition to systems lined with decorative coatings, manufacturers offer body-painted profiles. They retain their aesthetic characteristics throughout the entire service life of the structures.

If windows with dark lamination are planned to be used on sunny side building, you need to find out whether PVC can withstand overheating for a long time. Inexpensive profiles quickly soften under such conditions, which ultimately leads to deformation of the sashes and frames.

What to choose if you need secure windows

To make safe windows, you need a profile with a fitting groove offset that will allow installation. In addition, it is necessary to equip the structures with reliable steel reinforcement. The more cameras a profile with an increased installation width has, the more difficult it is to open such windows from the street side.

Attempts to break into windows high level safety may cause minor damage to profile structures. As a result, for the manufacture of such models it is recommended to choose systems made from environmentally friendly plastic.

How to choose the right profile at a good price

Systems that meet all the most stringent requirements belong to the premium class. But this does not mean that buying high-quality windows excludes savings. At the right approach You can cut your expenses a little.

Firstly, you will need to first find out, when ordering inexpensive plastic windows, which profile to choose for your climate. Not required for all regions maximum performance thermal insulation.
Secondly, take into account the location of your window openings. If the windows face the courtyard, then there is no point in overpaying for increased sound insulation characteristics.

If you absolutely require structures that retain heat well, do not allow noise to pass through and make it difficult to break into, use our advice, without sacrificing quality.

Selecting a profile is the first priority from which you should begin the window purchasing procedure. This process requires prior knowledge of the basic information necessary for a successful search. You can find all the latest information about components for assembling window and door units on the OknaTrade website in the “Useful Articles” section.

Profile PVC profile Wood profile PVC windows Wooden windows

Plastic windows firmly occupy a leading position. They are distinguished by a high level of heat and sound insulation, and also provide the opportunity to choose fittings, window opening method and profile color. You can also choose a double-glazed window with required quantity cameras But few people think that it is the window profile that ensures the strength and durability of the entire structure. In this article we compare plastic window profiles with 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 is divided by bridges that create several air chambers. A special technical calculation determines their dimensions and location. The wider the profile, the greater the number of chambers in it, increasing the heat-saving properties. Another characteristic profile system- filling width, which determines what type of double-glazed windows can be installed in the profile. They come in single- or double-chamber types, the width of the glass in a standard double-glazed window is 4 mm (grade M1).

Each cavity has its own purpose:

• for water drainage;
• fastening accessories;
• responsible for strength, etc.

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

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

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

Characteristics of PVC profiles for plastic windows

Material

• This product is made from a type 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.

• Due to its distinctive properties, polyvinyl chloride makes it possible to produce frames for double-glazed windows not only in rectangular or square shapes, but also in the form of arches, triangles, circles, and so on. Thus, giving absolutely any simple or complex configuration to the window, allowing even the most non-standard idea of ​​designers and architects to become a reality.

Design

The inner part of the plastic profile body is divided by longitudinal partitions, in turn they form cavities (air chambers). Minimal amount There are 3 chambers in the profile, 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 indicators. It should be noted right away that 3- and 5-chamber profiles are popular.

Reinforcement

To provide 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 due to 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 metal strengthens 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 balcony, a profile with closed reinforcement is required.

Profile class

The thickness of the profile walls determines whether it belongs to a certain class:

• Class A - the thickness of the profile walls 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 manufacturers of plastic window profiles

Many people, both domestic and international, present their products on the Russian market. foreign manufacturers. The leading positions in the ranking of profiles for plastic windows are occupied by the following companies:

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

VEKA

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

• BEKA profile systems are presented in 8 types, the installation depth ranges from 58 to 90 mm, and the number of chambers varies from 3 to 6. As a result of all the improvements, this profile is reliable, environmentally friendly and aesthetically pleasing.

REHAU

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

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

SCHUKO

This company is equipped with modern equipment, uses quality materials and is staffed by qualified personnel. Thanks to this, it produces a full line of profiles, fittings and seals.

• Window profile designs are available in widths from 60 to 82 mm, the number of chambers is from 3 to 8.
• SCHUKO windows are easy to use and have good burglar-resistant properties.

MONTBLANC

There are 4 manufacturing plants producing profiles in Russia.

• The Russian-Austrian company is equipped with a production base where the latest technologies are being developed and implemented.

• The Mont Blanc line contains 6 types of profiles, where the installation width ranges from 58 mm to 120 mm, chambers - from 3 to 6.
• The durability of the profile system (60 years) is achieved using specially developed performance characteristics for harsh climates.

PROPLEX

• The plant, located in Podolsk, produces profiles using German equipment using Austrian technologies.
• These products are produced in widths that can range from 58 mm to 127 mm, chambers - from 3 to 6.
• The original recipe allows us to produce high-quality profiles characterized by impact strength and special whiteness.

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

Profiles of the German company KBE

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

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

KBE Etalon - three-chamber profile

• The installation width is 58 mm;
• width of front walls - 3 mm;
• the thickness of the glass unit can be up to 34 mm;
• 3 chambers 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 provide heat transfer resistance. Such windows have high degree tightness, which exceeds the existing GOST requirements by 5 (!) times, which guarantees the complete absence of dust and drafts in the room;
• two sealed sealing 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 closing the window;
• The KBE profile has stiffening ribs that provide additional strength to the window structure. Also, special stops can increase rigidity, with the help of which the precise location of the reinforcing metal insert is achieved.

KBE Expert - five-chamber profile

• Installation width is 70 mm;
• width of front walls - 3 mm;
• glass unit thickness 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 conditions (-60°C);
• seal contours correspond to class A;
• service life - 40 years;
• used environmentally in production clean materials, does not contain lead.

Advantages:

• The five-chamber structure allows for better thermal insulation values; this profile is capable of retaining heat 20% more than typical three-chamber systems. You can achieve excellent sound insulation by installing wide double-glazed windows with a 70 mm profile;
• The 13 mm groove of the profile allows you to install anti-burglary fittings, thereby ensuring the security of the room;
• the KBE Expert profile has additional horizontal jumpers, thanks to which the handles and hinges will be securely fastened;
• during installation installation seam it turns out wider by about 20%, in turn allowing for additional insulation.

Estimated cost of windows from KBE profile

An important factor when choosing a particular double-glazed window is its price. It is often decisive, but high quality German window profiles cannot be cheap. Below is the approximate market value in Russia.

• On average, a single-chamber double-hung window with dimensions of 140x130 cm, in which one sash is fixed and the other is tilt-and-turn, will cost:
  • from a 58 mm profile from RUB 7,500,
  • from 70 mm - from 10,000 rub.

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

• When purchasing 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 58 mm profile 11,000 rubles;
  • from 70 mm from 13,000 rub.

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

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

This transparent element consists of 2 or more glasses that are tightly connected to the frame. A chamber (air gap) is formed between them, 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 an air gap of 16 mm, in abbreviated form it is designated 4-16-4. Thus, its installation width is 24 mm. A design equal to 36 mm is obtained from double-glazed window, which consists of 3 glasses of 4 mm each and 2 layers of 10 mm each - 4-10-4-10-4.

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

If the windows face north side and there is a road busy with cars nearby, then in this case the following option is suitable: a 5-chamber profile with a depth of 86 mm, complemented 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 no less than 40 mm.

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

But it’s 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, poor-quality installation will cancel all its high characteristics.

“Which window profiles are the best?” – a question asked by everyone who wants to finally install energy-saving windows in their home. However, despite the external similarity of all structures, inside all the profiles are completely different, some of which do not at all comply with SNiP RF and are not recommended for installation in residential premises. First of all, when choosing a window system, you need to pay attention to the number of chambers and the thermal resistance coefficient (the higher, the better). The next important parameter of PVC windows is the provision for reinforcement - this increases load-bearing characteristic design, helps to increase the service life of the system and its resistance to plastic deformation. To make it easier for the buyer to decide on a quality window system, this rating was compiled. So, TOP 10 the best companies and models of PVC window profiles:

aluPlast

Aluplast opens a rating of window profiles by quality. The company provides a good range technical solutions for window systems. The most latest developments, increasing the energy efficiency of structures, are embodied in the AluPlast energeto series. The Energeto 8000 model has excellent thermal resistance when installing triple glazed windows - 1.27 m2*C/W. According to the manufacturer, if the structure is not reinforced with steel (this reduces the load-bearing capacity), its thermal conductivity is significantly reduced, reaching a thermal resistance coefficient of up to 1.67 m2*C/W.

Deceuninck

Deceuninck is ranked 9th in the ranking of PVC profiles. The Belgian company has been producing window blanks from polyvinyl chloride for about 40 years at production facilities located in Europe, Asia and North America. The flagship of all Deceuninck lines is the 84mm Eforte model. This system is recommended for installation even in the northern latitudes of Russia due to the high coefficient of thermal resistance - 1.1 m2*C/W. The service life of Eforte is 30-40 years, subject to a temperature range of -60 to +75 degrees Celsius.

Proplex

The Russian company Proplex takes 8th place in the ranking of window profiles in 2018. All Proplex products are manufactured in Russia, so prices finished goods from this profile is much lower than imported analogues. Proplex produces 5 different window systems: 2,3,4,5-chamber. For installation in dachas, loggias and non-residential premises, we recommend the two-chamber Proplex Outline - the most cheap design with a thermal resistance coefficient of only 55 m2 * C/W. A more reliable system recommended for installation in apartments and residential premises is the four-chamber Proplex Comfort with a thermal resistance of 0.8 m2*C/V, which fully meets the requirements of SNiP RF.

Kaleva

The seventh place in the ranking of PVC window profiles is occupied by the Kaleva brand. The company produces a dozen various models each of which has its own advantages and disadvantages. The most inexpensive option with everything you need is Kaleva Standart - this is a four-chamber profile with the possibility of steel reinforcement and a built-in double-glazed window filled with inert argon gas, which has very low thermal conductivity. The Kaleva Titan Plus five-chamber window system is the company’s most heat-saving and noise-reducing design. Feature of Titan Plus: in addition to the main two-chamber 40mm insulation package filled with argon, blinds and another external glass are built into the system - thus, this model provides a degree of insulation incomparable with other analogues, thanks to the insulation package with three independent air partitions, two of which are filled with argon.

Montblanc

Montblanc (read as MONT BLANC) takes a leading position in the 2018 ranking of plastic profiles for windows in terms of price-quality ratio. Mont Blanc is an Austrian company that has been producing budget high-quality products for more than 15 years. quality profiles for translucent structures. Due to the opening of the Mont Blanc industrial plant in the Moscow region in 2001, the company gained wide popularity in Russia. The company produces several lines of window systems: Montblanc, Reachmont, Goodwin and ECP. All products have a guaranteed service life of 40 to 60 years, and an installation width of 58 to 70 mm, except for the eighty-millimeter Montblanc Grand with six air compartments. We recommend for installation a four-chamber Montblanc Quadro system with a thermal resistance coefficient of 0.8 C/W per m2 - this is a high indicator that meets the requirements of GOST and Building Codes in many regions of the Russian Federation.

Salamander

The TOP 5 rating of profiles for plastic windows in 2018 is opened by one of the most expensive brands in the rating. The company has three different systems in its product range: Salamnder 2d/Streamline/BlueEvolution. The most budget option is considered to be a three-chamber 2D with the possibility of reinforcing the internal chambers with steel. The wall thickness of Salamander 2D is: outer 3mm, rebated 2.5m, and inner 1mm - this provides good noise reduction (up to 46dB) and high energy efficiency class A+. This model is designed for installation of single-glazed windows. Salamander BlueEvolution is the next model recommended for installation in any region of Russia. BlueEvolution is the only profile available on the Russian market (meaning at a reasonable price) with a maximum width of the built-in double-glazed window - 60mm (if desired, you can install a three-chamber double-glazed window). Salander BlueEvolution is ideal for the continental climate of Russia: it protects from heavy rains, effectively maintains the temperature even at -40 degrees, and reliably resists drafts, thanks to the elastic rubber seal.

KBE

4th place in the rating of PVC window profiles belongs to the German manufacturer KBE. The names of the KBE rulers are banally simple and depend on the profile width: KBE 58/70/76/88. As anyone planning to replace windows should know, the wider the system, the more chambers it has, which means the heat-saving indicators of this design are obviously high.

The optimal option for installation is the KBE76MD model - this is a six-chamber design made using greenline lead-free technology from recycled polyvinyl chloride. Recycling PVC allows you to “kill” two birds with one stone: recycle PVC waste and save on the cost of raw materials, which directly affects the retail price of the product.

The most important thing in greenline technology from KBE is the complete preservation of the physical and mechanical properties of the material, that is, primary processed raw materials are no different from recycled materials. The best product from KBE is considered to be the 88 mm KBE AD made using greenline technology: this model has an outer wall thickness of 3 mm and 6 independent air compartments inside with the possibility of aluminum reinforcement - all this provides an absolutely high level of thermal efficiency and noise reduction.

VEKA

The bronze medalist in the ranking of the best PVC window profiles goes to VEKA. VEKA offers 8 class A models with an outer wall thickness of 3mm. The most economical solution is VEKO Euroline: a design with three air chambers designed for glass units up to 24 mm (usually two glasses - one chamber), the sashes and frames of which can be reinforced for greater system reliability.

The optimal solution in terms of price and quality for offices and apartments will be the energy-efficient A++ class VEKO Swingline series: 5 independent air chambers with an outer wall thickness of 3 mm will ensure warmth and comfort in the room even on harsh winter evenings. The most expensive and massive specimen is VEKO Alphaline. This model is equipped with six air compartments with a total width of 90mm - these are the most heat-saving windows from VEKO in which you can install double-glazed windows up to 50mm thick (3 glasses) and enjoy peace and comfort all year round.

WDS

WDS ranks second among the best profiles for plastic windows in 2018. The manufacturer has several product lines in its assortment, each of which differs in noise reduction coefficient, heat saving and the number of cameras: WDS 400/500, WDS 4/7/8 Series. The optimal price-quality ratio is the Class A 60mm WDS4 model, equipped with 4 independent air chambers and the possibility of aluminum reinforcement up to 1.5mm. For northern latitudes, it recommends installation of the WDS8 series: a six-chamber metal-plastic profile with the ability to install a two-chamber double-glazed window up to 44 wide - this model retains heat 2.5 times more efficiently than the WDS400/4Series.

Rehau

Rehau is the leader in the rating, the best profile for plastic windows in 2018. The company's product range consists of 7 types of profiles with different numbers of air chambers, design widths and levels of sound insulation. The Rehau Euro-design series is affordable and high quality three-chamber profile with a thickness of 60mm, so it is recommended for installation by those who do not want to overpay. For lovers good sleep Rehau Intelio will be a real find: a five-chamber profile 86mm thick with a noise reduction coefficient of 36dB (without double-glazed windows).

In cold conditions climatic zones, 86 mm Rehau Geneo will help save up to 80% of heat: the six-chamber design ensures high tightness, maintains a colossal gap between the temperature amplitudes in the room and outside the window, and also creates reliable protection from drafts, thereby maintaining comfort and coziness in the room throughout the winter even at -60 degrees. According to the manufacturer, all Rehau products have a minimum service life of 40 years, and some models even 60 years.

A window profile is a frame that holds a glass unit. Different kinds window profiles differ in the material of manufacture and internal structure. Let us consider in detail the differences and advantages of profile structures, their quality, cost and performance characteristics.

What types of windows are there?

Modern window profiles for double-glazed windows are made of polyvinyl chloride (PVC), wood or metal (aluminum profile). Each of the above materials has its own advantages, which determine its popularity and cost.

Wooden window profile

Wooden frames represent the most expensive, prestigious design of a window opening. Natural wood requires long-term drying, thorough impregnation with an antiseptic and protection from moisture. Therefore, the cost of a wooden window is an order of magnitude higher than a plastic profile. If the wood is not dried enough or treated incorrectly, expensive windows can collapse within a year of their installation.

The look of natural wood creates a prestigious design and attractive aesthetics. With proper preparation, wood is quite durable and reliable. The best wood for making window profiles is oak, larch; alder and pine wood are more accessible.

Let's summarize the advantages of wooden profiles:

• aesthetics and prestige;
• natural environmentally friendly material;
• good heat capacity.

Flaws:

• Possibility of warping, swelling, cracking and other types of damage;
• Expensive;
• High professionalism of the master manufacturer is required.

An option for using wood for double glazed windows is wood-aluminum profile. In it, the wooden material is closed from the outside metal plates. From the inside, on the living side, the frame shows natural wood; on the outside, the frame is protected from moisture by metal.

Aluminum profile

Aluminum window profiles are made with a small number of chambers (two or three). Metal itself is an insufficient heat insulator, which is why metal windows are cold. They are mainly used for glazing large retail areas, airports, but also balconies and loggias. "Warm" metal windows are equipped with a thermal liner, which increases the heat capacity of the profile structure. The cost of such windows is significantly higher than “cold” ones.

A metal window is characterized by the following advantages:

• strength;
• low flammability;
• durability.

Flaws:

• low heat capacity (for “cold” profiles);
• high cost (applies to “warm” structures).

Two main types of aluminum alloy profiles are in demand in various buildings. “Cold” aluminum profile is used where an inexpensive frame is needed, good strength, without special requirements to retain heat. The “warm” expensive profile is installed in heated rooms for durable operation in cold winter conditions.

PVC profile

PVC profile is called a plastic window. Its characteristics:

• high thermal insulation;
• moisture resistance;
• various designs (thanks to gluing laminated film).

Thermal insulation properties are ensured by the presence of hollow chambers inside. Due to the resistance of plastic to atmospheric precipitation, it does not absorb moisture, does not swell, does not rot or crack.

PVC has some disadvantages:

• flammability (characteristic of most plastics);
• The more cameras, the greater the weight of the structure, the higher the requirements for window installation.

Due to its affordable cost, PVC profiles have become the most popular material for the manufacture of double-glazed windows. Dozens of people are engaged in the production of PVC various manufacturers. Their profiles differ in the number of chambers and the thickness of the plastic wall. Let's consider what characteristics are used to evaluate PVC profiles.

Characteristics of PVC window profile

Popular manufacturers of window profiles

1. REHAU is a German manufacturer and has its own production in Russia. It supplies the Russian market with six models of profiles: 3-6 chambers, the width of a standard double-glazed window is 32–40 mm; in wide double-glazed windows (86 mm), special glass is installed and fiber is used. The heat transfer resistance coefficient is from 0.64 to 1.05 (for fiberglass profiles). The manufacturer regulates that a coefficient of 0.95 corresponds to heat capacity brick wall one meter thick.
2. KBE is a German manufacturer with two subsidiaries in Russia. Produces 8 profile models with different characteristics: 3-6 cameras, glass thickness from 32 to 52 mm. The heat transfer coefficient of the KBE profile is 0.7 – 1.04.
3. VEKA is a Russian-German manufacturer, VEKA Rus is a subsidiary of VEKA AG. Produces standard blocks and non-standard design structures for window openings and balconies in accordance with European standard RAL. The main models produced: Softline (for double-glazed windows from 4 to 42 mm, five chambers, heat transfer resistance coefficient 0.75), Softline 82 (glazing unit width 24-52 mm, seven chambers, coefficient 1.0), Euroline (three chambers, double-glazed window 32 mm, coefficient 0.64), Proline (four chambers, 4-42 mm, coefficient 0.75), Swingline (6-42 mm, five chambers, coefficient 0.77), Alphaline (elite 6-chamber profile with high coefficient 1.04).

   

4. MONTBLANC is a German manufacturer that supplies four types of profiles from 3 to 6 chambers (eco, thermo, nord and grand) to Russia. The width of the double-glazed windows is 32, 42 and 52 mm. Heat transfer resistance ranges from 0.6 to 0.82 mm. Frame thickness from 60 to 80 mm. Six air chambers fit into a width of 80 mm. High heat-saving functions make the profile popular in Russia.
5. SALAMANDER (also Germany) - produces profiles of 3, 5 and 6 chambers with frame thicknesses from 60 to 92 mm. Dimensions of mounted double-glazed windows: 32 mm, 48 and 60 mm. The widest Salamander profile BluEvolution has a heat transfer resistance of 1.0. The manufacturer regulates high burglary resistance of windows(thanks to a closed reinforcement system).
6. Schuco is a German manufacturer that produces 3-7 chamber PVC profiles for standard and energy-efficient construction. The maximum heat transfer resistance coefficient is 0.94. Double-glazed windows up to 36 mm thick. In wide frames with a thickness of 82 mm, it is possible to install anti-burglary fittings. Schuco also produces warm aluminum profiles with a number of chambers from 3 to 7, steel profiles for cold glazing.
7. TROCAL is a German manufacturer, the pioneer of the industry, which presented at construction market the first plastic window (in 1954). Has been producing window profiles for almost 60 years. The width of the double-glazed windows is from 30 to 58 mm. Four to five chamber profile, 70 and 88 mm installation width. The heat transfer coefficient is 0.82. Lead-free technology allows you to install the profile in child care institutions (kindergartens and schools).

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And finally: accessories

Fittings are a set of metal parts that provide a movable connection of various elements in the overall structure of the window. Durability depends on the quality of the fittings window product . It is important to know that famous brand manufacturers have cheap lines of lower quality fittings for Eastern European countries.

Types of window fittings:

• Tilt and turn (for opening the window and tilting the transom).
• The lock and handle are a multifunctional design that locks the frame in any position using an internal axis.
• Parallel-sliding (for retractable sashes).
• Tilt-and-slide.
• Vertical sliding.

In addition to fittings, the design of double-glazed windows uses. They provide the necessary insulation from noise and cold.

The selection of a window profile, its main characteristics and fittings is carried out in accordance with the required thermal capacity of the window and the price level for its manufacture. The quality of the profile and fittings determines the appearance of the double-glazed window and its performance characteristics: thermal insulation, sound absorption, strength and durability.