Concern REHAU produces profile systems for windows of various price categories:
- Blitz, Grazio, Estet - budget;
- Intelio, Delight - luxury class;
- Brillant, Geneo - exclusive.
The budget profiles "Blitz", "Estet", "Grazio" of the German brand are in no way inferior in quality to the exclusive "Geneo" and "Brillant". Products of different series differ, first of all, by their operational properties and the range of tasks to be solved.
Technical characteristics of windows
1.1 Number of cameras in a profile
The air cavity that forms between the partitions of the profile is called a chamber. With an increase in their number, the temperature in the room also increases. The smallest number of cameras in a profile is three. In this case, the coefficient of resistance to thermal protection is on average 0.62. If the profile is four-chambered, the coefficient reaches 0.64, five-chambered - 0.68, six-chambered - 0.72. As for noise isolation - the three-chamber profile absorbs 15-20 dB of noise, this figure increases by another 8-10 dB with each additional chamber. Veka manufactures a profile with 3-6 chambers, KBE - 3-6.6, REHAU - 3-5.5.
Obviously, the number of cameras in the profile will not help us identify the leader - all three companies offer almost the same parameters.
1.2 Width of the outer walls of the profile
The functionality of the window, its reliability and service life depend on the width of the walls (external). After all, the thickness of the walls determines not only the level of thermal protection, sound insulation of the window, it ensures its resistance to physical and mechanical stress, deformation. The thickness of the outer walls of the profile, regulated by GOST 30674-99, must be at least 3 mm.
The manufacturing company Veka adheres to world standards and offers its customers a profile with a wall thickness of 3 mm. It is VEKA products that have become the basis of Russian standards.
The KBE company manufactures a profile with an outer wall thickness of 2.8 mm, which belongs to category "A" of the Russian standard (2.5 - 3 mm).
As for REHAU, in order to reduce the cost of production, the company offers its customers a profile with an outer wall thickness of 2.5 to 3 mm.
1.3 Maximum width of a glass unit
It is wrong to focus only on the profile, because the indicators of heat and sound insulation also depend on the thickness of the glass unit. Only a solid profile with a special sash design can withstand a glass unit of good thickness.
The most stable profile of the Veka product line is VEKA-alphaline, it is able to withstand a glass unit up to 50 mm thick.
Among KBE profiles, KBE Expert turned out to be the most stable - it can withstand a double-glazed unit up to 58 mm thick.
Rehau profiles have a permissible glass unit thickness of only 44 mm - this figure is typical of the REHAU Sib-Design model.
If we compare the readings of the KST (coefficient of resistance to heat transfer) of the three companies, then the picture changes somewhat - VEKA is ahead of the curve: Rehau - 0.79, KBE - 1.05, Veka - 1.37 m² ° C / W.
More light
The innovative technology that is used in the manufacture of window systems allows you to reduce the frame and get 10% more daylight than similar structures. This figure is a record one.
Rehau Delight Design windows are designed in such a way that with reduced dimensions of the box and sashes, and therefore high translucency, excellent thermal insulation qualities are preserved.
A window of this configuration is equipped with double-glazed windows with nano-deposition of silver ions, which saves more than 70% of heat than when using simple glasses.
Physical characteristics of windows
2.1 Thermal protection of a window
The level of heat-shielding properties of a profile is measured by KST (coefficient of resistance to heat transfer). This indicator is formed from the ratio of the temperature at the edge of the profile to the density of the air inside. The larger the coefficient, the better the heat is retained in the room, the less cold air enters inside.
2.2 Waterproofing windows
In homes, moisture is always an unwanted "surprise". This is especially true for those areas where its concentration is high and without additional penetration from the outside, for example, kitchens, bathrooms. The waterproofing characteristics of a profile entirely depend on the shape and quality of the seal (elastic gasket between the frame and the sash). Due to it, the most snug fit is achieved, thereby protecting the room from moisture and cold air. Frost and condensation on the windows are signs of a bad seal.
Today EPDM (ethylene propylene rubber) has become the most versatile material for the production of gaskets. It does not lose its properties at low temperatures, does not deform during compression, bending and stretching.
All three companies use this type of seal, but the KBE company uses another type - TPE, which is manufactured simultaneously with the profile, and has high levels of tightness and thermal insulation.
The shape of the seal will help us to recreate the most accurate picture.
Veka seals are mostly single-leaf. A petal is a seal element that is slightly separated from the product. Such seals are shaped like a tube. A similar form of seal is used in KBE systems.
The standard REHAU gasket has two petals and there is no additional air space.
Practice has shown that the shape of the seal in Rehau window systems is the most practical. Due to the fact that the petals do not concentrate moisture, there is no problem of condensation. The service life of such a seal is increased by 3-4 years.
Obviously, REHAU windows are the most functional in terms of waterproofing.
2.3 Strength characteristics of the profile
Plastic serves as the main material in the process of making windows. However, it is not able to withstand the pressure from the glass unit and negative environmental factors on its own. Therefore, a PVC profile with a length of over 500 mm according to GOST is subject to mandatory reinforcement. The reinforcing insert is a galvanized strip metal profile (thickness 1.5-2 mm). The quality of this part is largely influenced by its shape, it can be U-shaped and closed square. The quality characteristics of this part depend on its shape.
During the reinforcement of the Veka profile, a square profile is used to a greater extent. For KBE and REHAU windows, various options are possible, more often it is a G-shaped or square profile. The first is more durable than square, but square wins significantly in terms of stability and rigidity.
2.5 External characteristics, the complexity of care during operation
Window systems REHAU, KBE and Veka are distinguished by a wide range, where products are presented that are different in functionality and external characteristics. Buyers are given the opportunity to choose the most suitable sash location, opening type, additional options: climate control, mosquito nets, tinting, laminating, etc. This allows you to order a window not only of a suitable shape, but also of a suitable color, shade and texture.
In terms of aesthetic characteristics, KBE, VEKA and REHAU windows are not inferior to each other.
Plastic windows require minimal attention and care during operation.They can be periodically washed, wiped with special means - this is all that is required from the owner of the windows. REHAU made the task even easier - the most smooth profile, which practically has no roughness, does not get dirty for a very long time, which eliminates the need for frequent washing.
2.6 Service life of windows
The durability of PVC profile windows is their main advantage. How can a client know the average service life of a company's products? The manufacturers did it for you with the help of special experiments - this experiment speeds up time and reproduces all possible loads on windows. Temperature, pressure, humidity are often changed in the chamber. As a result of such a study, the service life of the window is revealed. For the standard Veka and KBE profile, a period of 40 years was determined, the REHAU profile is much longer - 60.
2.7 Comparative characteristics of the profiles REHAU, Veka and KBE
It was not possible to identify a specific winner among the three leading manufacturers of window systems - each product is of high quality, good performance and excellent appearance. However, in terms of the level of sound insulation and heat protection, the VEKA company has become the leader, in addition, the products of this manufacturer are the most durable and rigid due to closed reinforcement. But a better and more reliable seal has Rehau products, which prolongs the life of its windows. Worthy competition to them are profile systems KBE.
In a nutshell, profile differences based on customer reviews would look like this:
- "The VEKA profile is of high quality and durable, its walls are thicker and it is generally made soundly, has a noble white matte surface and is pleasant to the touch";
- “REHAU is a very popular brand, but it is becoming more and more difficult to purchase windows from the original REHAU profile, because it is often counterfeited, has cheap Russian, Turkish, and Chinese counterparts of rather low quality ”;
- “KBE is a well-known brand on the market, but in terms of quality it is still inferior to VEKA and REHAU, although the differences between them are insignificant. There are also elite series of this brand, which are very good. "
But in order to get a complete and reliable picture, it is better to consider the positive aspects of all three profile brands.
Unusual and special designs
Reinforced plastic windows carry various shapes and types of double-glazed windows. By special order, constructions with bulletproof lighting spaces are manufactured, which has prospects for banks and jewelry stores. If you look at the photo of such products, then they will not have significant differences. But the characteristics are very different from conventional products.
The same can be said about PVC doors that make up the entrance groups of such objects. Externally filled with space and transparency, the products are able to withstand any attack. When manufactured, they can have a construction width of 70 mm, which saves the interior space of the corridor or vestibule. That is why many owners decide to choose these PVC doors.
Nevertheless, such plastic windows are quite rare, which does not mean that they are less popular or not in demand. This is due to the increased cost of these PVC products, which frightens off many potential customers.
Separately, it is worth mentioning the stained-glass structures, the width of the profiles for which is the same 70 mm. Unlike armored bank windows, these products do not have special double-glazed windows. But on the other hand, the size of the stained-glass windows can amaze anyone who sees them not in the photo, but in real time. And for the manufacture of such structures, reinforcement of the supporting frame is required. Stained-glass windows should be chosen when decorating panoramic studios with a very large area of light space.All listed products require only high-quality components with improved technical parameters. And the materials of the Rehau company have undeniable advantages over other manufacturers, which has been repeatedly confirmed by research and time.
Plastic windows VEKA
One of the most popular types of profiles that have become widespread in the glazing of country houses, balconies and apartments. Most of the VEKA window series have a low cost, which does not compromise quality. It is also necessary to note the following parameters:
- In production, only safe materials of high quality are used;
- The profiles are elegantly shaped;
- The only profile in Russia of class "A";
Only VEKA profiles have a closed-section galvanized metal reinforcement, which affects the mechanical stability of the products. Veka's profile has rightfully earned the status of a high-quality profile in Russia, thanks to its unchanging principles in the field of quality control and building work with window manufacturers.
What to look for
Before choosing the future glazing of an apartment or house, you should carefully study the available proposals. The cost of each product depends on its characteristics and functionality, which is not always suitable for a certain type of room.
In order not to overpay for design developments and increased thermal insulation, it is worth consulting with specialists who carry out repair work in an apartment or house. Only in this case, you can get high-quality plastic windows and save on costs when buying them.
Also, do not engage in the choice of window construction only from the photo posted on the seller's website. It will be much more effective to get acquainted with the structure personally, checking on your own how this or that sash works and how convenient it is to use the window or doors in general. The rest already depends on the manufacturer and the installation team, which will install PVC structures in the customer's house.
Plastic windows REHAU
The advantages of REHAU windows are best seen on the example of the most popular series - Rehau Basic-Design. This model has the following parameters:
- The width of the three-chamber profile is 60 mm;
- Standard indicators for noise and heat insulation;
- Windows do not require special care, they are very technological and reliable
- The main advantage is the relatively low prices for windows from this profile.
They are used for glazing of cottages, balconies and apartments, just like VEKA. However, modern requirements for energy saving provide for the use of 70 mm wide profile systems in construction. Therefore, in the near future, in companies responsible to consumers, the Rehau Sib-Design profile will become the basic option.
Door groups are not inferior to window
What can connect window and door structures? Only the components from which they are made. Modern PVC doors can replace any other counterparts and add light space. This is true for shopping centers and small shops. More sun means less costs for artificial lighting, which makes these establishments more efficient.
With its great advantages, door panels quickly gained popularity among entrepreneurs. New trade standards began to imply the presence of a fully glazed opening, which allows customers to see the entire range without going inside. And it attracts users. Something like this already happened in the middle of the last century, so it would not be entirely correct to call such an approach a novelty. But choosing Rehau products for building a modern retail outlet or financial institution is the right decision. And the company continues to work on improving its products.
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Plastic windows KBE
KBE - are considered a classic brand of plastic windows. They have become widespread due to the following criteria:
- The production uses the "greenline" technology, which completely excludes the use of heavy metals;
- KBE windows can withstand temperatures up to -60 degrees;
- They have various design solutions.
Due to their properties, KBE windows are often used in the mass development of capital objects: residential new buildings, office centers, state buildings. institutions.
Bottom line.
Rehau PVC windows have been in steady demand for many years. Many people who have chosen the products of this company are not disappointed in their choice. Therefore, no matter what model of Rehau plastic window you choose, be sure that any purchased copy will perfectly fit into the existing interior of an apartment, private house, office and will serve you faithfully for a long time.
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Tags: surfaces, floors, room
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A bit of history.
The company was founded in 1948 by Helmut Wagner in Rehau.
In 1958 the first window products were produced.
In 1995, a Russian representative office was opened in Moscow.
In 2002, a workshop for the production of window profiles was put into operation in the town of Ramenskoye.
In 2005, another workshop was launched in the city of Gzhel.
The presence of workshops for the production of products in Russia can significantly reduce costs in the production of window products.
At present, the REHAU Concern has more than 170 representative offices in 58 countries of the world.
