Gründer or Rehau windows, which one to choose – All about windows

Plastic window profiles: what do you need to know to make the right choice?

The key element of a plastic window is its profile. In fact, the strength, reliability, durability of the entire window structure, as well as the comfort and convenience of its use depend on its choice. The modern market is literally inundated with such goods of all stripes and brands, and in such a situation a completely logical question arises: how to choose the profile of plastic windows? How can you determine which one is best for your specific situation, and how to avoid making a mistake and regretting your decision? In this article we will try to give you key information that will help you find the answer.

Food for thought

Reviews criticizing brand products do not always give an objective picture. Many users who complain about the poor quality of manufacturing and installation of products do not always indicate the name of the company with which the contract was concluded. But it’s one thing if Grunder plastic windows are manufactured in the official representative office of the brand, and quite another thing when we are talking about a third-party company that uses materials and components purchased from the parent company.

For erroneous measurement results, poor installation, and damage caused by improperly functioning equipment or unsatisfactory training of operating personnel, it is not the manufacturers of plastic windows, but the direct performers of the work who are responsible. They are in demand. Therefore, before placing an order, study reviews not only about the Grunder brand, but also about the company with which you intend to enter into an agreement.

Main types of profiles

So, if you want to figure out how to choose plastic windows: which ones best suit the parameters of your room, then first you should understand their main types. There are four of them (three main and one additional):

• Class A. This is traditionally the best option, the thickness of the internal walls is at least 2.5 mm, and the external walls are at least 2.8 mm. Class A profiles are characterized by good thermal insulation and resistance to deformation.
• Class B. The thickness of their internal walls is from 2.0 mm, and the external ones - from 2.5 mm. Accordingly, they demonstrate slightly lower thermal insulation abilities and are also less resistant to deformation.
• Class C. These are window profiles that do not correspond to the characteristics of the structures of the two classes indicated above.
• Object . This is the name of a special type of profiles with thin walls, which very easily allow cold to pass through and become deformed under adverse external influences. Such options are intended exclusively for use in industrial non-residential premises, and most often - in principle, they do not involve the presence of people.

Accordingly, if we talk about which window profile to choose from the standpoint of their class, then the best option would be class A. In some cases, class B options are also suitable for residential premises.

Features and range of Gründer profiles

Grunder PVC windows are assembled from profiles with an installation depth of 60 or 70 mm, which allows you to individually select a system with the required rigidity and energy efficiency. The surface of the plastic has a deep blue-white color. The developers called it "Blue Ice". Ideal whiteness was achieved due to the fact that when producing profiles of this brand in Russia, no secondary raw materials are added to the main composition.

The CaZn compound is used as a stabilizer for the PVC mixture. Thanks to this recipe, Gründer plastic windows last longer (up to 40 years) and do not emit harmful substances during operation. Gründer profiles belong to class “B” and have an outer wall thickness of up to 2.8 mm. This is enough to withstand moderate mechanical loads and seasonal temperature influences.

Gründer windows have a double-circuit sealing system that reliably protects against blowing. Seals made of Silicon, EPDM, TPV, TPE can be gray or black. The height of the rebate under the glass unit is 20 mm, which reduces the risk of condensation around the spacer frames. At the request of customers, lamination of profiles is possible.

The systems are suitable for assembling blocks of different sizes and applications. Complete with the main profiles (sash, impost, frame), the manufacturer produces additional elements:

• corner and straight connectors;
• bay windows;
• platbands;
• expanders;
• shtulpa;
• racks.

Thanks to this, it is possible to assemble structures of complex shapes.

The wall thickness of metal liners (reinforcement) for PVC systems varies between 1.2–2 mm, which provides all structural elements with a high level of rigidity.

Gründer 60 (Grunder 60)

Currently, Gründer 3-chamber systems with a 60 mm installation depth are almost never used for main glazing.
Windows assembled from these profiles are mainly installed on balconies, loggias, as well as in workshops and warehouses. For residential and office premises, such glazing can only be used in the southern regions. For the Gründer 60 system, 2 types of glazing beads have been developed, which allows you to install double-glazed windows of different thicknesses in light openings. These profiles are suitable for the manufacture of entrance lobbies, pavilions, and glazing of bay windows. In the southern regions they can be used to assemble greenhouses and winter gardens.

Grunder 70 (Grunder 70)

Systems with a 70 mm installation depth can be considered universal – they are suitable for use in most regions of the Russian Federation. The exception is areas with harsh winters. Gründer 70 PVC profiles have 5 internal chambers, which significantly reduces heat loss. Provided that selective double-glazed units are used, energy-efficient windows can be assembled from these systems.

Gründer produces 3 types of glazing beads for 70 mm profiles, which allows the integration of double-glazed windows with a thickness of 24, 32 and 40 mm. Door and window blocks assembled from the Grunder 70 system can be used both in multi-storey buildings and in the private sector. This is the best option for small cottages that are periodically used in winter. Glazing balconies and loggias with 5-chamber Gründer windows allows apartments to be well insulated.

Which window is better to choose: profile characteristics

Just choosing a class may reduce the number of options, but not by much. To finally decide which PVC windows are best to choose, you will also need to evaluate potential options in terms of several characteristics.

Number of chambers and profile width

A chamber is an area with a hollow air space enclosed between partitions. The more chambers in a profile, the greater its thickness, and the higher the thermal insulation properties it has. Typically, the number of chambers varies from 3 to 6, with a three-chamber profile having a thickness of about 60 mm, and a six-chamber profile about 90 mm. If we talk about which plastic windows to choose for a private house or apartment, then it is better to give preference to profiles with 5-6 cameras.

Profile wall thickness

We have already mentioned this characteristic when we talked about the classes of plastic window profiles. The thickness of the walls is important, first of all, in order to guarantee the resistance of the structure to deformation. The larger it is, the stronger the profile. It is highly desirable that its outer walls have a thickness of at least 3 mm, otherwise the long-term operation of the windows in the Russian climate will be doubtful.

Number of double glazed windows

A double-glazed window is sheets of glass hermetically connected to each other, between which there are chambers with air or other gas. Do not confuse the number of double-glazed windows with the number of cameras in the profile. The degree of thermal insulation of the entire structure, and in addition to it, the degree of light transmission also depends on this characteristic. Therefore, answering the question of which plastic windows to choose for a private house, apartment or office space, the team of Stroy.Direct specialists recommends choosing two-chamber options (these are three sheets of glass and two air cavities between them). On the one hand, they are quite good in terms of heat retention, on the other hand, they do not absorb too much light and weigh relatively little.

Authenticity

This is not so much a characteristic of choice as a parameter that needs to be checked when purchasing profiles directly. Firstly, there must be a stamp on the inside of the box indicating the brand, shift number, equipment used to produce the structure, and the date of its release.

In addition, it would not be superfluous to inspect the products and evaluate the quality of the plastic. It should be uniform and one-color, without streaks, smudges or graininess. If you notice such imperfections, you should refrain from purchasing, since they indicate violations of the technology made during the manufacture of the double-glazed window.

Choosing the best profile for plastic windows

It is not easy to determine “by eye” which profile of plastic windows is better, but there are some features that can say a lot about its quality.

Profile uniformity

The plastic must be uniform and absolutely smooth. The grainy surface indicates that the windows were most likely made at home and are fake. The coating should also be uniform, without streaks or gradients.

By the way. To avoid buying a fake at the price of branded windows, pay attention to the factory markings on the inside of the window frame. It should have a stamp with the name of the manufacturer and a series of numbers: shift number, device for producing PVC profiles and date of manufacture.

Profile width

Most often, companies offer a plastic profile for windows with a width of 58 mm - this is a classic option, preferable for residential premises. There is also a profile with a width of 70 mm; this is often installed in high-rise buildings or where the climate is particularly harsh. The 90 mm wide profile is a premium offering and features excellent heat and sound insulation properties. However, not all companies work with such products.

Profile thickness

The profile thickness should be the same, from 2.5 mm to 3 mm. However, thin walls are not suitable for heavy window blocks - in this case, the welding seam is less strong, which means the reliability of the entire structure suffers.

Number of air chambers

The number of cameras also depends on the width of the profile. A 58 mm profile can have a maximum of three chambers - which, however, is quite enough for the windows to retain heat. 70mm - three, four or even five cameras. The last of those mentioned (70 mm) are most in demand for glazing apartments and houses.

The norm for a 90mm profile is six cameras. The more cameras there are, the warmer and quieter the house will be. However, in fairness it should be said that the difference between, for example, a three- and four-chamber package is not so significant.

Number of double glazed windows

The number of air chambers in a PVC profile should not be confused with the number of double-glazed windows. A double-glazed window is several sheets of glass connected to each other along the contour using a special frame and sealants. Sealed chambers with air or other gas inside are formed between the glasses.

Single-chamber double-glazed windows are the lightest; they consist of two glasses and one air chamber between them. Such double-glazed windows are very light, suitable for glazing large openings, so they are often installed on balconies, loggias and terraces. However, they are not suitable for windows due to insufficient thermal insulation.

For a home, cottage, office or apartment, it is better to choose a double-glazed window consisting of three sheets of glass and two air chambers. Three-chamber double-glazed windows made of four sheets of glass are rare, they are heavy and transmit less light than other types of double-glazed windows.

Such windows are in demand only in the North, where temperatures in winter can drop to -40 o C and below. At higher temperatures there is almost no difference between two- and three-chamber double-glazed windows.

Helpful advice!

When choosing a plastic profile for windows, pay attention to the frame seals. There must be two of them, otherwise condensation will settle under the frame, and this spoils the insulation and creates a favorable environment for bacteria and mold.

How to choose windows for your home: practical recommendations regarding manufacturers

In most cases, the decision about which profile to choose for plastic windows involves purchasing products from one of the well-known brands. Otherwise, you risk getting a “pig in a poke” with unknown performance characteristics. The main manufacturers of window profiles that have earned a good reputation include the following

• Rehau . These are structures in the middle price segment, mainly from 60 to 70 mm thick, made from environmentally friendly materials. If you are thinking about which Rehau windows to choose, the easiest way is to give preference to one of the latest developments, since the company’s engineers are constantly working to improve technology and improve the design of their products.
• VEKA . Like Rehau, VEKA is a German company that has been specializing in the production of profiles for several decades. The price segment here is also average, product thickness is from 58 to 90 mm. VEKA profiles are famous for the fact that they do not turn yellow or fade even many years after installation. It is also worth noting the galvanized metal reinforcement of a closed section, thanks to which these structures are more resistant to deformation.
• GRUNDER . This is another German brand with a branch in the Moscow region, offering fairly budget-friendly designs that have proven themselves well in recent years. The production uses modern equipment and environmentally friendly materials. The basis of the Gründer assortment is three- and five-chamber profiles with a thickness of 60 and 70 mm, respectively.
• KBE . Another popular German brand, whose product catalog contains options from literally all price segments: from extremely budget models to profiles that deservedly belong to the luxury class. KBE specializes in the manufacture of structures with a thickness of 58 to 70 mm, and their main highlight is absolute safety from an environmental point of view, as well as for people and animals. Therefore, KBE windows are often used for installation in healthcare institutions, educational institutions, etc.

To make it easier to choose which windows to install: Veka or Rehau, Grunder or Rehau, KBE or Veka - it is better to first decide on their main characteristics. And then find suitable models from each manufacturer and choose the option that suits you most in terms of price. In addition, if you order the installation of profiles from Stroy.Direct specialists, you can also ask their advice for your specific situation.

Windows Gründer 70 MM

Main characteristics GRUNDER 70 window profiles are excellent for external and internal window structures for buildings and structures for various purposes: apartments, country cottages, summer cottages.

Environmentally friendly window profile GRUNDER 70. Compounds based on Ca Zn (calcium and zinc), rather than lead, are used as stabilizers. Grunder plastic structures are completely harmless for use in residential areas.

German quality standards. Made only from imported materials.

Innovative design. The white color “blue ice” does not turn yellow or darken over many years of use.

The width of the frame-sash structure in the light opening is 116 mm (for comparison, REHAU Sib-design 120 mm, Rehau Delight 109 mm)

Affordable price. Our company can offer good prices for glazing with this window profile, which will help save your family budget for more interesting investments.

Sealing contour

• Two lip sealing contours made of EPDM foam rubber;
• bead seal color: black, grey.
• Well protects from wind, moisture and noise from the street.

Temperature range Window profile Grunder 60 is designed for temperature range – 50 °C to +60 °C

Three-chamber profile

• 70 mm wide
• Frame and sash width – 70 mm;
• Number of air chambers in the profile – 5

Reinforced liner Heat transfer resistance of the finished structure m²°s/W-0.67

Noise insulation

• Noise insulation class B,
• The thickness of the outer wall of the profile is 2.8 mm (class B)

Frame reinforcement

GRUNDER 70 MM is a window profile designed for external and internal window structures. They are used for glazing of houses, apartments, cottages. The main advantage of this type of profile is its absolute safety for human health. Window profiles are safe for use in residential areas due to the absence of lead.

GRUNDER 70 MM is equipped with 5 cameras. The 70 mm window profile is suitable for use in areas with even the harshest climates. The profile can withstand temperatures down to -50 degrees.

The GRUNDER 70 MM profile belongs to class “B”. The outer wall of the window profile is 2.5 millimeters thick and provides excellent sound insulation. The minimum durability of the profile is 30 years.

Advantages of GRUNDER 70 MM:

• modern design and snow-white windows;
• good anti-burglary characteristics;
• no lead as a stabilizer.

The GRUNDER 70 MM window profile attracts attention with its affordable price and good technical characteristics. You can buy a GRUNDER window profile in Nizhny Novgorod now!

Comparison of REHAU profiles

The content of the article:

The REHAU concern 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”, “Gratio” of the German brand are in no way inferior in quality to the exclusive “Geneo” and “Brilliant”. Products of different series differ, first of all, in their operational properties and the range of tasks they solve.

Specifications

• Grazio is a budget series with an elegant design and high thermal insulation. Thanks to the minimum plastic width of 104 mm, the profile allows maximum light to pass through. Suitable for glazing in areas with harsh climates.
• Estet is a 3-chamber profile with unique sashes, which were previously mounted only on premium windows. A system with increased burglary protection and heat and sound insulation.
• Blitz is a budget profile for reliable glazing without frills. The delivery set includes a profile frame with a glossy surface, a single-chamber double-glazed window, basic fittings and a rubber seal.
• Intelio - the legendary “quiet” 6-chamber windows from REHAU, blocking cold and sound from the street and letting in maximum light. Provides installation of double-glazed windows up to 52 mm thick. For tightness, they are equipped with a 2-circuit seal and convection limiters.
• Delight is an energy-saving profile with 5 chambers, reinforced with reinforcement. Decorated with elegant beading.
• Brillant is a warm five-chamber profile with increased burglary safety. Lightweight, durable, suitable for creating window systems of any size.
• Geneo is the most reliable mass-reinforced profile made using the innovative RAU-FIPRO ® material. 40% lighter than analogues.

In the production of windows, it offers customers the best solutions in terms of price/quality ratio. You can order window systems made using Gründer profile systems. They meet strict European standards. At the same time, the cost of structures remains affordable.

In terms of their performance characteristics and geometry, Grunder profiles do not differ from German ones. Imported raw materials are used for their manufacture, but the plant for the production of these structures is located in Russia. Thanks to this, we were able to reduce production costs and offer customers affordable products. Types of Grunder profile systems

Grunder profiles are impeccable. The structures have a classic design, making them fit into any interior. This is the best option for those people who do not want to overpay for a brand and at the same time want to have environmentally friendly, functional and reliable windows in their apartment or office.

In the production of Gründer profiles, modern technology is used, which does not involve the presence of lead in plastic frames. It is successfully replaced by a compound of calcium and zinc, thanks to which it was possible to maintain the white color of structures for many years and avoid harmful effects on the environment.

You can order windows made using profiles at an affordable price:

• Grunder 60 mm is an ideal solution for standard windows and balcony blocks. This is a three-chamber profile that meets modern requirements for thermal protection and thermal insulation. Suitable for those who live in the middle climate zone.
• Grunder 70 mm is a high-quality 5-chamber profile that is suitable for various types of glazing. Due to its large thickness, it is most often used in regions with harsh climates.

Choose the option that suits you best! Managers are always ready to provide you with free consulting assistance.

Advantages of Grunder plastic frames

Gründer profiles are produced using modern high-tech equipment. At each stage of production, these structures undergo strict control, thanks to which the manufacturer can guarantee high quality products and their compliance with all international standards.

Among the features of the profile systems produced “under the wing” of Gründer, the following can be noted:

• Excellent heat saving - saving on heating and maintaining an optimal microclimate in the premises is easy if Gründer structures are installed.
• Durability and high strength, which were achieved through the use of innovative technologies and proven materials.
• Complete safety for health – environmental friendliness ensures the absence of harmful substances in the profiles.
• Excellent noise protection. You will not be disturbed by the sounds of cars passing by the house or the screams of children from the yard. Sound insulation characteristics differ depending on which profile is selected - Grunder 60 mm or Grunder 70 mm.
• Functionality - can be used both for the manufacture of standard windows and for structures of original shapes (for example, when glazing loggias and balcony rooms).
• Ultra-modern design, thanks to which window systems fit perfectly into any interior (from classic to high-tech). Such structures do not require special care. It is enough to wash them regularly to keep them clean.

If you value reliability and practicality, Gründer window profiles are your choice! Contact us to order glazing for your apartment, house or office at a competitive price.

Your Okonsky!

Design

A characteristic feature of all REHAU systems is a perfectly smooth surface. It can be matte or glossy. Somewhat angular - in the Blitz series, with soft lines - in Brillant, mirrored - in Geneo. The Delight profile is recognizable by its rounded frame corners. The content of any model is not limited in design - it can be stained glass, tinted, colored, laminated to resemble wood or metal. The plastic is painted white or any other tone, including wood-like.

Profile selection

"Blitz" is an inexpensive solution for glazing of office, retail, industrial and residential buildings. Designed for use in mild climates. This is a laconic, high-quality profile that fits harmoniously into the exterior of multi-storey buildings.

“Brilliant” is an exclusive system that retains heat as much as possible and reliably protects the opening from burglary. Maintains functionality in any climate conditions.

“Delight” is a luxury profile system for aesthetes. Its frame can be designed individually to suit a specific interior.

"Geneo" is a solution for discerning homeowners. The plastic in this series is unprecedentedly light thanks to the innovative material and can be installed on load-bearing bases.

Comparison of profiles for Rehau windows

Rehau products are known all over the world as high quality, wear-resistant, durable and at an adequate price. Among the manufacturer’s other products, a special place is occupied by the window profile, produced since 1959, which is still the leader in its market segment. Along with high quality and technical characteristics, one of the reasons for its demand is the wide range of models developed by the company in order to satisfy any customer needs. To make the right choice - to get the desired window properties and not overpay extra money, it is important to understand how Rehau window profiles differ from each other.

Rehau product range

The range of profiles for windows from Rehau includes the following models, brief descriptions of which will immediately make clear their main differences:

1. Euro - Design Slide - the most affordable three-chamber model (sliding) with a technical depth of 60, one sealing contour, a heat retention rate of 0.54 m2°C/W. Designed for glazing thin-walled or old buildings, as well as verandas, gazebos, and any non-residential and residential premises located in “warm” areas without a significant drop in temperature in winter.
2. Euro-Design 60 is the same as the previous model, but non-sliding and slightly improved. There are still three chambers, the standard depth is 60 mm, but can be increased to 70 (there will be five chambers), the number of sealing circuits has been increased to 2, which increases the heat retention rate to 0.65 m2°C/W. Designed for glazing of apartments and offices in areas with a temperate climate.
3. Blitz is a basic model, in demand in the economy segment due to its affordable price and decent technical performance - installation depth 60 mm, 0.64 m2°C/W.
4. Action – affordable quality from a world-famous manufacturer as a response to domestic competitors. The model was developed by the company to promote truly strong, durable, warm, quiet windows among Russian economy class consumers. The three-chamber model has a depth of 60 mm, and a heat retention rate of 0.64 m2°C/W.
5. Thermo - Design is an updated classic, long known on the Russian market, but improved by the manufacturer. There are now four chambers with the same depth of 60 mm, the heat transfer resistance coefficient has increased to 0.78 m2°C/W - an ideal profile in terms of price and quality ratio for glazing apartments in high-rise buildings.
6. Sib - Design - a three-chamber model of the standard class, which has an additional thermal block and a depth of 70 mm. The heat retention rate has been increased to 0.72 m2°C/W, the windows can easily withstand temperatures down to -45 degrees, that is, they are suitable for use in the Far North.
7. Delight - Design is an original five-chamber version that has a reduced frame height of 70 mm (sash + frame is only 109 mm versus standard 116-120), which contributes to greater light penetration into the room (by 10-15%). The heat loss resistance coefficient has been increased to 0.80 m2°C/W. The model is recommended by the manufacturer for glazing windows located on the “dark” side of the building.
8. Grazio is a five-chamber profile developed by the manufacturer for connoisseurs of elegant forms. It has high thermal insulation values ​​(0.85 m2°C/W) with a structure depth of 70 mm.
9. Brillant-Design - a distinctive feature of this five-chamber profile is its exclusive design and innovative approach to the manufacture of the structure. All technical characteristics are at a high level, depth is 70 mm, and heat transfer resistance is 0.81 m2°C/W.
10. Intelio is one of the new premium class products, having a depth of 80 mm, excellent hydro-, sound-, and thermal insulation properties (0.95 m2°C/W). Suitable for glazing apartments and houses in areas with a significant decrease in temperature, as well as those located in places of increased noise.
11. Geneo is a six-chamber innovation from the manufacturer. Lightweight (40% weight reduction thanks to the unique RAU-FIPRO fiber reinforcement technology) but very durable frame that can be installed even in old houses. The model, with a depth of 86 mm, has the best heat retention rate of 1.05 m2°C/W, as well as unlimited design possibilities.

Pros and cons of Rehau profiles

Familiarization with the range of Rehau profiles helped to get an idea of ​​the options for future windows, as well as to see the difference in models. To complete the picture, it is worth analyzing the pros and especially cons of the company’s products.

Pros of profiles

A comparison of Rehau profiles with offers from other popular manufacturers (Veka, KBE) made it possible to identify their main advantages:

1. A huge range of models , each of which has its own purpose. Both people with average incomes (economy class products) and financially secure buyers (standard and premium class models) can easily choose the best option for themselves.
2. Excellent thermal insulation performance , even for basic models - maximum - 1.05 m2°C/W.
3. High noise insulation characteristics - up to 47 dB.
4. The strength of the profile is at the highest level , which means that windows made from it will be safe throughout their entire service life.
5. The use of innovative technologies (RAU-FIPRO) allowed the manufacturer to reduce the weight of the frame, which expands the range of applications of its windows and causes less wear on the fittings.
6. The waterproofing of Rehau window structures, in comparison with the products of all other manufacturers, occupies a leading position in terms of performance, and all thanks to the special shape of the seal (double-leaf).
7. The special composition of the profile (over 50 components versus 20 for most competitors) makes it stronger and ensures the preservation of whiteness and shine throughout its entire service life.
8. The particularly smooth surface of the profile contributes to its less contamination, that is, it significantly facilitates maintenance - the windows practically do not need to be washed, it is enough to wipe them with a damp cloth 1-2 times a year.
9. The manufacturer provides a maximum guarantee for the profile - 60 years, confirmed by numerous tests in an accelerated time chamber.

Disadvantages of profiles

A comparison and description of Rehau windows will be incomplete if we are silent about their disadvantages, namely:

1. Lots of fakes. The best has always been counterfeited. Rehau products did not escape this either. However, the company has found a way to protect its customers from scammers. Each of their products is marked with a unique serial code. To check the originality of the profile, call the hotline (for Russia it is 8-800-555-33-55) and give this code.
2. Expensive. Most of the manufacturer's models have a higher price compared to the products of domestic and Chinese competitors. This is especially true for those profiles that are produced directly in Germany. However, quality products with a 60-year warranty cannot cost the same as cheap, low-grade products that will have to be replaced every 10 years.
3. Deviation from norms. Not all of the company’s models in terms of outer wall thickness comply with existing international standards and Russian GOST 30674-99, according to which this parameter should not be lower than 3 mm. In some Rehau economy class models, the wall thickness is 2.8 mm. A deviation from the norm of 0.3, even if insignificant, affects the strength of the product, although at the same time it can significantly reduce its cost (by 10-15%).

Advantages and disadvantages

Any technically complex product has its strengths and weaknesses. Gründer windows are no exception. The experience of their operation, judging by the reviews left online by specialists and ordinary users, suggests that the brand’s products belong to the budget category. By choosing it, you will reduce the cost of purchasing finished products and their installation and will have at your disposal good window systems, the advantages of which are:

• Beautiful appearance. Painted in a color called “Ice Blue,” the plastic has been pleasing the inhabitants of houses and apartments for a long time with its whiteness and is easily cleaned of dirt.
• Ecological cleanliness. The profiles are made from European raw materials, which are stabilized using calcium and zinc compounds that are not harmful to health.

Flaws

At the same time, the affordable Grunder profile, in order to reduce cost, is equipped with inexpensive seals and simple fittings. Such savings certainly affect the overall performance of the products. You obviously shouldn’t expect from them the same high performance as recognized leaders like Veka or Rehau. Grunder plastic windows are inferior to their venerable competitors in terms of such characteristics as:

• Thermal conductivity level.
• Soundproofing properties.
• Operational resource.

This does not mean that you should refuse to buy them. You just need to be realistic and understand what category of products you are purchasing.

Review of popular Rehau profiles

To learn more about the features of the most popular Rehau profiles, it is necessary to compare their technical characteristics.

Blitz New

Low-budget model Blitz New, which has decent hydro-, noise-, and heat-insulating properties.
The frame has a flat, smooth top, and the sash has a curved rebate. This design eliminates the accumulation of moisture and contamination of the window. Main characteristics (in mm):

1. Intimacy – 3.
2. The thickness of the outer wall is 2.8.
3. The depth of the profile system is 60.
4. Thermal insulation value is 0.70 m2°C/W.
5. Number of sealing circuits – 2.
6. Double-glazed window - up to 32.
7. Sound insulation – up to 20 dB.

Main characteristics of Grunder plastic windows

The Gründer window profile, from which finished frames are assembled, is available in white or brown, which allows it to be combined with different design styles. It is offered in two versions:

GRÜNDER 60 SERIES

60 mm. In this case, clients receive a two-chamber system of simplified design, the design of which allows the installation of double-glazed windows with a total thickness of 4 to 32 mm. This is a suitable option for regions with warm and temperate climates. Rebate height – 20 mm. The number of sealing circuits is two.

Specifications:

GRÜNDER 70 SERIES

70 mm. A five-chamber system with glass sizes from 24 to 40 mm has an increased level of heat transfer resistance and is better suited for buildings operated at low temperatures. As in the first case, the rebate height is 20 mm and two sealing contours are provided.

Specifications:

The final cost of a window varies depending on its size and configuration option.