We compare VEKA and REHAU - how to find the optimal profile? Which profile is better than Veka, Rehau or KBE? Which plastic windows are better.

Installation of plastic windows is excellent solution modern designthat provides comfort at home and at work. Such windows provide reliable heat and sound insulation. But, in order for these functions to be performed efficiently, it is necessary to choose plastic windows from good manufacturer, and also install them in full compliance with the technological requirements.

German plastic windows "Rehau", reviews of which in most cases are positive, are made in Germany and are famous for their excellent quality. In the article we will consider whether this is so, and the main models.

Features of "Rehau" windows made of plastic

The windows of the German company Rehau are manufactured using a special technology protected by a patent. Their profile contains more than sixty components. Plastic windows provide:

• complete tightness of the window opening due to a special seal;
• the solidity of the window structure due to the thickness of the outer walls of the profile, which is three millimeters;
• sound insulation within 26-30 dB;
• durability and ease of use;
• affordable price;
• easy care;
• modern style and design;
• thermal insulation and energy saving, which includes protection against freezing and blowing.

Rehau EURO-Design 60

Plastic windows "Rehau", reviews confirm this, provide the room with warmth and comfort, especially this model. Its main advantages:

• increased level of thermal insulation;
• three-chamber module and smooth surface;
• versatility: windows can be installed in both old and new buildings;
• maintaining a high coefficient of heat conservation.

Specifications of this model:

• heat transfer level - U-1;
• six centimeter width of the window box;
• profile design - three-chamber;
• the degree of protection against breakage - the second level;
• isolation from noise - fourth level;
• color palette of the sealant - black or gray;

The Rehau EURO-Design 60 window system guarantees warmth and the highest level of security at an affordable price.

Rehau EURO-Design 70

This model of the "Rehau" window, reviews of which can only be heard positive, is able to provide a home not only with comfort and warmth, but also give a modern and stylish look, as it has a special profile design.

The advantages of this window system:

• increased heat-saving characteristics;
• high level of sound and noise isolation;
• strength and protection is provided by a five-chamber profile device;
• convenience and ease of care;
• reliable protection against penetration by burglary;
• the ability to install a climate control system;
• the ability to create large windows.

Technical characteristics of this system:

• heat transfer level - U-1;
• profile device - five-chamber;
• the degree of protection is the second level;
• noise insulation - the fourth level;
• color palette of the sealant - black;
• damper type - round or flat.

Rehau Geneo system

The manufacture of this model of the Rehau window (customer reviews confirm its high quality) is carried out using a special material RAU FIPRO, which strengthens the base of the profile. This is glass fiber, it makes it possible to triple the elasticity and strength of the structure.

System installation advantages:

• this model does not have metal reinforcement, which makes it possible to easily transport and install window structures;
• due to the relative lightness of the windows, the load on the walls and foundation of the building is reduced;
• the central edging of the seal guarantees tightness;
• choice of various colors and styles;
• excellent sound insulation;
• reliable protection against penetration;
• moisture wicking due to the correct slope of the fold.

Rehau Geneo technical properties:

• the level of heat transfer - 1, O5 m² K / W;
• window box width - 8.6 cm;
• profile design - six-chamber;
• burglary protection - second level;
• noise insulation - the fifth level;
• damper type - round or even;
• cost - from $ 180.

Rehau Brilliant Design

An irreplaceable solution for lovers of unique design - Rehau windows. Customer reviews indicate that this model, like no other, is suitable for creating a special style in the room.

The advantages of this window system:

• fourteen color options;
• excellent energy saving indicators;
• good strength characteristics and reliability;
• protection against penetration by burglary;
• straight lines and soft corners on a flat surface;
• choice of window configuration: curly, arch or rectangular;
• security reliable protection from dust, wind, heat loss;
• for the manufacture of the model, environmentally friendly components were used.

Rehau Brilliant Design technical features:

• the level of heat transfer is 0.77 m² K / W;
• window box width - seven centimeters;
• profile design - five-chamber;
• burglary protection - third level;
• the degree of sound insulation - the fifth level;
• the color scheme of the seal is black or gray;
• damper type - the possibility of various design solutions.

Due to its excellent characteristics, this model belongs to the high price category, the minimum cost of an average window is $ 260.

Rehau delight

This model is the innovative Rehau windows. Reviews say with inspiration that they give warmth and light.

Benefits of the Rehau Delight system:

• in comparison with conventional profiles, this model can transmit thirteen percent more light into the room;
• such windows visually expand the space;
• relatively affordable price, from $ 210 for a standard window;
• the best level of thermal and sound insulation.

Model characteristics:

• heat transfer - 1.3 m² K / W;
• window box width - seven centimeters;
• profile device: five-chamber;
• the degree of protection against burglary - the second level;
• noise insulation - the fifth level.

The first stage of installation of plastic windows "Rehau"

Energy-saving windows "Rehau" (people's reviews confirm this information) are quite difficult to install, but subject to all technological recommendations this process even a beginner in this business can carry out. The stages of window installation are as follows:

• measure the opening and order a window from a specialized organization;
• dismantle old windows;
• prepare and process the opening for the installation of the profile;
• to install and fix PVC windows "Rehau".

Feedback from those who have already performed such work indicates that measurements must be carried out with special care and thoroughness. Otherwise, the profile will be made with the wrong parameters and may not fit the opening.

In order to obtain the required parameters, it is necessary to measure the height and width of the window separately outside and inside the room with a tape measure. Measurements are carried out in different places, since the opening can be skewed, and the smallest of all the values \u200b\u200bobtained is taken as a basis. Then the parameters of the window sills and slopes are measured. Before ordering windows, you need to decide on the design and style, color, technical parameters, shape, number of partitions and so on.

Before buying, many are wondering which windows are better - "Veka" or "Rehau". Consumer reviews indicate that the latter provide a much larger selection of their products according to various criteria.

If a new window is inserted instead of the old one, then the latter is dismantled and the window opening is thoroughly cleaned.

The second stage is the installation of windows

The second stage can be done in two ways:

1. First, dismantle double-glazed windows with hinged doors. Drill for metal on window frame from inside make holes for attaching the window according to the following scheme: two - on top, three - on the sides, two - on the bottom. Fix the window with anchors.
2. In some models, there are already built-in special fasteners - they are attached with screws to the window frame.

In order to correctly mount the Rehau windows (reviews of practitioners say that), they fit in the middle of the window sill wooden blockson which the frame is installed. Then fasteners or anchors are mounted in the window opening.

After that, the horizontal position of the window is checked with a water level, and the correctness is determined by the suspension vertical installation... Only after carefully checking these parameters, proceed to the next step.

The third stage - securing the profile

Most often, customers are satisfied and praise the plastic windows "Rehau", negative reviews are found only when the technology of installing the profile is violated.

Windows are docked in two ways:

1. With a frame. Holes are made in the wall with a perforator through which the lower part of the frame is attached. Then, after checking the verticality, the upper and middle parts of the window are fastened.
2. Using plates. Special metal plates protruding from the top and bottom of the window are attached with a ladder tightly to the wall. Then, first, the lower part is strengthened with a perforator, and then the upper and middle.

The geometrically correct position of the window structure must be checked at each step of the installation.

The final step

At the last stage of the window installation, drainage is installed, double-glazed windows and additional sashes are installed.

The gap between window system and the opening is sealed with polyurethane foam. To prevent the foam layer from collapsing due to temperature changes and under the influence of moisture, a hydro or vapor barrier film is attached.

Many clients confirm that they have excellent windows "Rehau" specifications... Reviews also indicate that the profiles of this manufacturer are completed the best fittings compared to others. But still, sometimes it becomes necessary to repair or adjust them. The reasons for this may be the following:

• poor-quality installation of windows in violation of technology;
• long-term use and the resulting wear of the window system;
• insufficiently tight connection of the sash and frame, which leads to unnecessary heat losses;
• low degree of sound insulation;
• sagging of the sash.

Adjustment of the plastic system "Rehau"

When the client has a choice - plastic windows "Newton" or "Rehau", reviews, as a rule, advise the latter. And this is due, among other things, to the ease of adjustment.

The main methods of adjusting plastic systems "Rehau":

1. The sash is brought down with a hexagon depending on the season: in summer - a loose fit, in winter - vice versa.
2. Incorrect installation or bevel of the frame is adjusted by a couple of millimeters with a hexagon in the holes on the window hinges by rotating clockwise. Similarly, vertically - with a hexagon in the lower hinged loop.
3. With a loose seal, tighten the bolts with the sash open.
4. If the window squeaks, the seal is lubricated with silicone oil. Likewise, if the handle squeaks or is tight.
5. If the window handle sticks, it means that the moving elements of the system have dried up or the sash has sagged. First, lubricate the mechanism, and if it does not help, adjust the window hinges with a hexagon by turning the adjusting screw with the sash open perpendicular to the window frame.

In order for the plastic windows of any manufacturer to serve for a long time and not let down, you should regularly inspect them, replace worn parts, and also systematically clean them, especially the seal. After all, small particles of dirt and dust, undoubtedly, affect the performance and condition of plastic systems.

In our country, equally popular metal-plastic profile systems from both REHAU and Veka. The quality and characteristics of the products of both concerns are almost the same, the assortment is wide. Unsurprisingly, it can be difficult for shoppers to understand how products differ different brands... And often they have to choose a solution at random. Comparison of profile systems by several key parameters will help to determine the preferences: class, chamber, number of seals, type of reinforcement, installation depth, maximum thickness of the glass package.

Class

The class of PVC profile depends on its thickness without metal reinforcement. The "A" class includes profile systems with an outer wall of 3 mm or more. Products with thinner outer walls up to 3 mm thick belong to class “B”.

Both REHAU and Veka release plastic systems with 3 mm A-class walls.

Number of air chambers

Three- and five-chamber profiles

As a rule, budget systems 3-4 chambers (cavities), which are enough to prevent the formation of condensation and reduce heat loss at facilities in central Russia. Veka has only Euroline profile with 3 chambers, REHAU has two three-chamber solutions - Basic and Euro Design. Also "REHAU" produces one four-chamber Thermo Design system. You can choose profiles from two manufacturers with 4 cameras and in the middle price niche. These are Veka Proline and REHAU Delight.

Most effectively retain heat 5- and 6-chamber products with a higher coefficient of resistance to heat transfer. For the six-chamber system Alphaline from "VEKA" the parameter is 0.94, for Brillant Design from "REHAU" it is slightly lower - 0.79.

Thermal protection systems of both manufacturers are equivalent.

Number of sealing contours

Two and three contour seals from REHAU

A standard swing-open window is equipped with two cold-blocking seals. A three-circuit seal is more reliable, since it is considered reinforced. It is equipped with the Geneo system from REHAU. The three sealing lugs seal gaps more effectively and isolate heat. The quality of sealing rubber is much higher in REHAU.

REHAU offers the most insulated series with three sealing contours.

Reinforcement type

Reinforcement varieties

So that the plastic does not bend and break under the weight of the structure, it must be reinforced with a metal profile - reinforced. There are 3 types of reinforcement various shapes... These are L-, U-shaped and closed reinforcement.

REHAU reinforces the plastic with U-shaped metal inserts, Veka reinforces the profile with hollow square tubes in almost all series, because the volumetric PVC systems from this manufacturer are stronger. However, it should be borne in mind that such a closed reinforcement affects the cost of products - VEKA windows and doors are more expensive.

Veka windows, reinforced around the entire perimeter, are stronger, but their cost is also higher.

Installation depth

REHAU profile with an installation depth of 70 mm

The installation width is the depth of the window block. For budget systems like Veka Euroline or REHAU Basic, it is 60 mm. Most of the profiles in the middle price segment from both manufacturers have an installation depth of 70 mm. Thicker and warmer Veka Topline + profiles with 104 mm mounting width. They are designed for the same glass bags with maximum thickness as the GENEO counterpart from REHAU.

In terms of installation depth, the products of the concerns do not differ.

Maximum thickness of a glass unit

Thicker glass bags provide better thermal and acoustic insulation. Suitable for thin 35 mm glass fillings, the Basic, Euro and Thermo systems from REHAU are not the best solution for homes on busy streets. With them, street noise makes itself felt.

For reliable sound protection, it is better to choose the GENEO or DELIGHT profiles of the same manufacturer, designed for a thicker filling (53 and 40 mm, respectively). The plastic of these series in combination with the thick glass bag effectively blocks sounds from the street. This combination prevents the formation of condensation due to the installation of a two-chamber package with different chamber volumes.

The width of glass filling of 50 mm in Alphaline PVC from "VEKA", sufficient for the installation of a three-chamber glass unit, significantly affects the cost of glazing.

REHAU and VEKA produce profiles suitable for thick glass bags with 2-3 chambers. The advantage in the thickness of the filling is at REHAU, whose Delight system is designed for a double-glazed unit with a record thickness of 53 mm!

Aesthetics and convenience

Both manufacturers have a wide range of products. Find something suitable for functions and appearance not difficult. Windows can differ in shape, size, profile color or surface texture. Products of both concerns are decorated with lamination and tinting, open in different directions, equipped with mosquito nets, and provide climate control. The plastic does not need special care. It is enough to wipe the windows from time to time from dust, wash.

In terms of aesthetics, the VEKA and REHAU systems are not inferior to each other. Many REHAU profiles surpass VEKA analogues in terms of smoothness - they are easier to care for and need to be cleaned less often.

What to choose?

Each concern improves technology and offers quality products, attractive in appearance and easy to operate. To choose suitable solution in any case to the buyer. It's not easy to decide, so we turned to an expert. To the question "Which is better - the" REHAU "or" VEKA "systems?" the specialist of the company "Window Systems" answers:

“Veka reinforces the plastic with metal in a closed loop and offers stronger profiles. But the REHAU U-shaped reinforcement also provides sufficient strength. The advantages of REHAU plastic windows are a more durable seal and longer service life. Therefore, if tightness and durability are a priority, it is better to choose the "REHAU" system. Such windows will last up to 60 years. "

Alexey Mironov, master window maker with experience window mounting more than 20 years

Quite recently we found out, now we will also make a comparison for the KBE and REHAU windows.

Together with Veka, these two companies hold leading positions in the modern plastic window market. Their products stand out from the crowd for their excellent quality and many other advantages. But still, which windows are better than kbe (kbe) or rehau (rehau)? We'll find out now.

Specifications

Number of cameras in a profile

The chamber is the empty space inside the profile, separated by partitions. The minimum number of cameras is three. The main (central chamber) serves to reinforce the profile, the rest - to fix the fittings, drain condensate from the profile, additional thermal protection and sound insulation.

The maximum number of cameras in KBE profiles is only 5. REHAU boasts a profile with 5.5 cameras.

This is the design of the REHAU Brillant-Design model. The reinforcement of this profile (a metal insert inside the profile) has an intricate shape, as a result of which there is a free air space between the metal and the plastic. By its properties and purpose, this part of the profile completely repeats the standard camera, but the company itself does not consider it as a separate part of the profile. That is why the number of cameras in such a profile is named 5.5 or 5 (6).

Profile outer wall thickness

The recommended thickness of the outer profile wall is 3 mm. Like Rehau, like KBE, in order to save money in some of their models, they can use thinner walls, which noticeably affects the heat protection and sound insulation of windows.

Maximum permissible width of a glass unit

A standard double-glazed unit is 38 mm thick (3 glasses of 4 mm and 2 chambers of 8 mm). Such a glass unit provides an average level of sound insulation. If you want to increase the heat-shielding and noise-insulating properties of the window, you must use double-glazed windows with big amount cameras and increased glass thickness.

In order for the profile to hold the weight of such a glass unit, it must be as strong and rigid as possible and have a special design.

KBE Expert + profile is the most functional and durable in the entire KBE product line. The maximum permissible width of a glass unit for such a profile is 58 mm.

REHAU Sib-Design can hold a 44 mm glass unit, which is the highest among all Rehau window products. As you can see, the difference is striking and KBE is the undoubted leader.

In terms of heat and sound insulation, both of these companies cannot boast of the reference quality of their products. Let's try to identify which windows are better than kbe or rehau for other reasons.

We conclude that the heat-shielding properties of both window companies are at the same level. Maximum value the coefficient of resistance to heat transfer for the KBE profile is 0.78, for the Rekhau - 0.79. We remind you that the higher this number, the warmer it will be in a room with such windows. As you can see, Rehau thermal protection is slightly better than KBE thermal protection.

The Rehau profile and KBE reduce street noise by a maximum of 25-30 dB, that is, their sound insulation level is at the same level.

Physical properties

Heat protection and sound insulation of the window

The main indicators of the quality of a plastic profile are its heat protection and sound insulation. These characteristics depend on the number of chambers, the thickness of the outer wall and the maximum permissible thickness double-glazed windows.

For the numerical measurement of thermal protection, the coefficient of resistance to heat transfer is used. This indicator is revealed by the ratio of the temperature on both sides of the profile to the air density inside it.

Sound insulation is measured in decibels (dB). A comfortable noise level for a person is 40 dB, the street noise in many ways exceeds this number and equals 70-80 dB, complete silence is 0 dB.

Window waterproofing

Windows with poor waterproofing can sweat and even frost during the cold season. Of the parts of the profile, the sealant affects the waterproofing most of all.

The seal is a rubber gasket around the edges of the sash. Not only waterproofing, but also thermal protection of the window depends on the quality of the sealant. If the seal is made of substandard material, it will quickly wear out and the joint between the sash and the frame will begin to let cold air through.

All modern seals are made of practical and frost-resistant ethylene-propylene rubber (EPDM).

The shape of the seal will tell you about the quality. KBE in the manufacture of its profile uses two types of gaskets: KBE 227 and KBE 228.

KBE 227 is used for low price profiles. It has only one petal (the “page” of the seal, its part slightly separated from the whole product) and does not have any additional properties.

KBE 228 is essentially just a slightly improved KBE 227. Unlike its predecessor, it has a more intricate shape and has an additional closed chamber. By its properties, KBE 228 is similar to a similar seal from Veka. The disadvantage of all seals of this shape is that even with a slight violation of its integrity, moisture can get inside the closed chamber.

The REHAU standard gasket is considered the benchmark in its segment. Its form combines minimalism and maximum convenience... Such a seal has two petals, does not freeze and does not retain moisture inside itself.

Profile strength

In order to give rigidity to the PVC profile, a special reinforcing insert made of galvanized tape with a thickness of at least 1.5 mm is used. The metal helps the profile to hold the weight of the glass unit and not deform due to its weight.

Reinforcing insert can be U-shaped and square. More perfect is the square shape and it is this that is used in most profile models.

For the manufacture of most Rehau products, a special form of reinforcing insert is used, which is a kind of feature of this company. This profile is called G-shaped. It is more practical than the U-shaped profile, but in its properties it is inferior to the closed one.

Appearance and ease of maintenance

The standard white KBE profile can acquire a grayish tint over time. All due to the fact that the company has abandoned the use of lead harmful to humans in its production and has developed an innovative technology GrenLine. With this technology, lead, which is used by most PVC manufacturers to stabilize white (that is, so that the shade of white does not turn yellow over time) is replaced with safer zinc. Side effect this environmental friendliness has become gray.

The profile does not change its shade during operation. This profile is easier to clean and needs to be done much less frequently. All because of the special arrangement of polymer particles (polymer is a special substance that is the basis of all plastics), due to which the profile does not have any irregularities and roughness. Dirt and dust simply have nothing to gain a foothold and it is washed off in one motion.

Profile durability

Each of the companies we mentioned gives a guarantee for their products for at least 10 years, but this does not mean at all that after this period the profile will become unusable. The average service life of plastic windows is measured not in years, but in decades.

The maximum service life of a window is checked by the most difficult experiments, during which the windows are subjected to heavy loads. More recently, such studies have been carried out at the Scientific Research Institute of Building Physics of the Russian Academy of Civil Engineering and Architecture.

The maximum service life of KBE windows under normal conditions is 40 years, for REHAU - 60 years.

Comparison of KBE and REHAU profile models

In general, the question of which windows is better than kwe or rehau can be answered unequivocally - REHAU. They are much more durable, have an excellent level of heat and waterproofing, are easy to use and have good external characteristics.

Now we will compare the individual window models of each company and decide which ones are right for you.

Table of the main characteristics of the REHAU and KBE profile

If you need reinforced window insulation, you need to select a profile with a large number chambers and a good coefficient of resistance to heat transfer. Suitable models will be REHAU Thermo-Design, KBE Expert, KBE-Select, REHAU Sib-Design. But the best solution is KBE Expert + and REHAU Brillant-Design.

For rooms with high level noise outside the window, it is necessary to install a double-glazed window with maximum level soundproofing. KBE Expert, REHAU Sib-Design are suitable for these purposes - these profiles have a high value of the maximum permissible width of a glass unit. The best noise insulation profile is KBE Expert +.

If you live in a quiet part of the city or in a private house outside the city and the thermal insulation of the window is not so important to you, you can choose any profile you like, plus significantly save money, because the more materials were used for manufacturing supporting structure windows, the more expensive it will cost.

Well-known German companies Rehau and Veka are engaged in the manufacture and sale of plastic windows, doors, balcony blocks, etc. Both of them have long established themselves exclusively from the positive side.

In order to determine which windows are better - VEKA windows or Rehau windows, it is necessary to understand the advantages of both. And only after that everyone will be able to draw certain conclusions for themselves.

Positive qualities of the century window profiles

1. Increased reliability. The risk associated with possible deformation of the glass unit is practically minimal. This is due to the fact that the groove for the glass unit is in a horizontal position. This distributes the weight of the glass unit equally over the entire folding surface.

2. High quality fittings. The handle of the window, which we very often pull on in the windows of the Century, contains a double fixation. Therefore, such handles serve very for a long time and do not loosen.

3. Protection against drafts. The gaskets used in the windows are resistant to different temperatures: low and high. Moreover, they closed looprather than made up of parts.

4. Resistance to damage. In addition to the fact that the color of the windows is very pleasing to the eye, they are also resistant to all kinds of mechanical damage, and it is not easy to scratch them.

5. Tightness. Veka windows are highly airtight. But just in case if water somehow gets inside the glass unit, there is a drainage channel.

Positive qualities of Rehau windows

1. Rehau windows are resistant to temperature extremes. The plastic used for them will not lose its qualities even at very high or low temperatures.

2. Noise isolation. The three-chamber principle ensures maximum sound insulation of windows and completely protects you from extraneous noise. This feature distinguishes Rehau windows especially from others.

3. Ventilation system... Rehau windows are equipped with special ventilation valves, which make it possible to ventilate the window even when it is closed. This prevents condensation and normal humidity levels.

4. Increased strength. Rehau windows are unique in their strength. It is not possible to damage the glass unit or window sash. Such windows are almost impossible to break. In addition, the owner, if desired, can additionally install special locks or special accessories on the handles.

5. Style and design. Rehau windows look very attractive and stylish. The window designers took care not only of the technical capabilities of the windows, but also of their appearance.

When choosing a window, it is best to trust a professional. In each case, certain factors are taken into account, and the best option window.

The video will tell you which windows are better and how to choose a plastic profile:

If you asked the question "Which windows are better than veka (century) or rehau (rehau)?", You probably have already studied enough and you know that these manufacturers of PVC profiles occupy leading positions.

It is unambiguous to say that one firm is better than another. consisting of several different parts: PVC, reinforcement and sealant. It has many properties, such as sound insulation, heat protection, waterproofing. Some characteristics are better for REHAU, others for Veka. In order to understand this issue in detail, you need to understand what you expect from new windows in the first place: minimal heat loss, quietness in the room, high waterproofing rate, or something else.

Specifications

Number of cameras in a profile

The chamber is a hollow air space between the partitions inside the profile. The more such cameras, the warmer it is in the room. The minimum number of cameras in a profile is 3. The coefficient of resistance to thermal protection in such a profile is 0.62 on average. The four-chamber profile has an average coefficient of 0.64, the same indicator of the five-chamber profile is 0.68, and the six-chamber profile is 0.72. Three-chamber profile attenuates an average of 15-20 dB of noise, and each additional camera - another 8-10 dB.

Veka manufactures profiles with 3-6 chambers, REHAU - from 3 to 5.5. Why 5.5? The fact is that the reinforcement (an iron insert located in the middle of the profile) of some models of the REHAU profile is slightly mixed to the side and does not completely occupy the entire central chamber, which is why another partition is formed inside. According to modern Russian standards, such a partition and the airspace separated by it can be considered a camera. But the Rehau company itself does not position windows of such a configuration as six-chambered, but modestly names the number of cameras as 5.5 or 5 (6).

We will not be able to decide which windows are better than Veka (century) or REHAU (rehau) by the number of cameras in the profile. Both firms can offer a similar choice.

Profile outer wall width

The width depends not only on the heat protection and sound insulation of the window, but also on its resistance to deformation.

According to GOST 30674-99 "Window blocks from PVC profiles", the recommended thickness of the outer wall of the profile is at least 3 mm.

In the Veka product line, you will not find a profile with a lower index. Veka does not save on the thickness of the profile walls and is attentive to all world standards (by the way, Veka windows have become the basis of Russian standards).

But REHAU, in order to save money, can offer its customers a profile with thin walls from 2.5 mm and more.

Maximum glass unit width

It is wrong to say that the thermal protection and sound insulation of a window depends only on the profile. In many respects, these indicators are influenced by the glass unit, or rather its thickness. In order to install a double-glazed window of maximum thickness, the profile must have special strength and a special sash design.

The most stable profile among Veka products - VEKA-alphaline can withstand the weight of a glass unit up to 50 mm thick. The maximum permissible width of the insulating glass unit of the REHAU profiles is only 44 mm. This indicator is possessed by the REHAU Sib-Design model.

From all of the above, it can be understood that Veka produces windows with a greater degree of sound insulation and heat saving. If we look at the maximum readings of the coefficient of resistance to heat transfer of these two companies, we can see another confirmation of our words.

The maximum CST of the Rehau profiles is 0.79, the Veka - 1.37.

Physical properties

Heat protection and noise insulation of a window

These two indicators depend on the same characteristics of the profile, so we will not separately consider sound insulation and thermal protection, but we will do it together.

The heat-shielding properties of a profile are measured by the coefficient of resistance to heat transfer (KST). This indicator is revealed by the ratio of the temperature at the edges of the profile to the air density inside it. The higher the coefficient, the less heat leaves the room and the less cold streams penetrate inside.

Noise is measured in decibels (dB). When comparing firms, we will take into account the noise level in the room with these windows, as well as how much the profile muffles sounds from the street.

Now we will take a closer look at each indicator and decide which better windows veka or rehau in terms of sound insulation and frost resistance.

Window waterproofing

In residential areas (especially with high levels of humidity, such as kitchens and bathrooms), it is very important how protected the window is from moisture penetration from the street. Profile waterproofing depends on the quality and shape of the seal.

The seal is an elastic gasket between the sash and the frame. It serves for a tighter fit, protecting the room from moisture and cold. Due to a poor-quality seal, condensation and frost may appear on the window.

On this moment The most practical and versatile material for making a seal is ethylene-propylene rubber (EPDM). It is the most frost-resistant, not subject to deformation during compression, stretching and bending. Both companies use this particular material, so the seals of both companies are of excellent quality.

We can decide which plastic windows are better than veka or rehau by the shape of the seal.

Century seals are mostly single-lobed. The petal is the part of the seal that is slightly separated from the entire product. In addition, the seal of this company is a bit like a tube in shape.

The standard REHAU gasket has two petals and there is no additional air space. He's better than Century

Experiments show that the shape of the Rehau seal is more practical. Condensation does not accumulate in the petals (unlike a closed chamber, into which moisture can get), the seal does not freeze and does not wear out for 2-3 years longer.

In the question of which plastic windows are better waterproofed by veka or rehau, REHAU undoubtedly wins.

Profile strength

Plastic is not able to independently withstand the load from the severity of the glass unit and the influence external environment... Therefore, according to GOST 30674-99, all PVC profiles with a length of more than 500 mm are subject to mandatory reinforcement.

A metal profile made of galvanized strip 1.5-2 mm thick acts as a reinforcing insert. The quality of this part is largely influenced by its shape, it can be U-shaped and closed square.

For the reinforcement of the Veka profile, a square profile is mainly used. REHAU windows are available in square or G-shape. The G-shaped profile is stronger than the U-shaped one, but it cannot be compared with the square one in terms of rigidity and stability.

Appearance and ease of maintenance

and Veka are distinguished by great functionality: the choice of buyers is given a large selection of ways to position the sash, types of window opening, as well as a bunch of additional features, such as mosquito net, climate control system and more. In addition, the profile of both companies can be given any shape, shade and texture. By external characteristics the windows REHAU and Veka are on the same level.

Maintenance of plastic windows is minimal. All you have to do is wash them periodically. REHAU decided to make life even easier for its customers. Their profile has a perfectly smooth surface, PVC particles are located so close that irregularities or roughness of the profile can only be seen under a microscope. Thanks to this technology, the profile gets dirty less often and it is much easier to wash it.

Durability of windows

Hardly anyone wants to change their windows every 5-10 years, so their durability has great value... In order to identify the maximum service life of the profile, special experiments are carried out. The window will be placed in the “accelerated time” chamber, where the load is recreated several decades in advance. Pressure, temperature and humidity levels are periodically changed in the chamber. The observation reveals the average window lifetime under normal conditions.

As a result of such experiments, it was revealed that the standard Veka profile will serve faithfully for 40 years, and the REHAU profile - 60.

Comparison of REHAU and KBE profiles

It was not possible to identify the winner in terms of the main characteristics of the profile - the undoubted leader in terms of thermal protection and noise insulation, in addition, the products of this company are more durable and tough. However, REHAU has a better seal. The windows of this company are easy to use and last much longer.

Now let's compare the individual profile models of both companies.

Main parameters of profiles

The optimal degree of thermal protection will be provided by models with a high coefficient of resistance to heat transfer. REHAU Delight-Design, REHAU Brillant-Design, VEKA-swingline, VEKA-softline are best suited, but most the best solution will become VEKA-alphaline and VEKA topline +.

For windows where sound insulation is of particular importance, you need to select a profile with the maximum possible width of the glass unit: REHAU Sib-Design, VEKA-alphaline and VEKA topline +.

In all other cases, you can choose a profile according to your financial capabilities and personal preferences.