Choosing plastic windows. Deceuninck or rehau which is better

Today we will talk about two brands popular around the world - Rehau and Deceuninck, which are produced in Germany. Both companies create high-quality plastic profiles of class A. From both you can find a suitable model, both budget and luxury.

Before deciding what to choose, it is worth understanding the technical characteristics that affect the performance properties of windows.

The price of window profiles from both companies is approximately the same, but the quality of the products offered varies significantly. Deceuninck excels in some areas, while Rehau excels in others. Let's look at these aspects in more detail.

Air chambers

The plastic structure has a certain space inside it, which is located between its partitions. This space is called the air chamber. It is responsible for maintaining heat and protecting against noise in the room. The presence of cameras greatly increases the heat and sound insulation properties of the window.

The companies Dekeninck and Rehau produce profiles with three, five and six chambers inside the frame. The coefficient of resistance to thermal protection (CRT) for a profile with a minimum thickness of Deceuninck Forward 60 mm is 0.65. Rehau Blitz 60 mm thickness CST is 0.63. The Eforte profile from the Deceuninck brand and the new Geneo series from the Rehau brand each have 6 chambers in the design and the CST is 1.05.

Designs with three chambers absorb 15-20 decibels, and each subsequent chamber adds another 8-10 decibels to sound protection. As you can see, both companies are approximately equal in these characteristics. So let's look at the remaining indicators to see a more complete picture.

Choosing plastic windows - answers and advice to your questions

Which windows are better: with the rehau, Deckening or Veka profile? So that the sound insulation is better. Anna

Hello Anna.

The question you asked is one of the most common today. Internet users constantly compare Deceuninck, VEKA and Rehau plastic windows with each other in order to choose the best, and even save a lot of money on their purchase. It is worth noting that all three listed brands produce high-quality double-glazed windows with excellent fittings, but all products differ from each other. I also want to draw your attention to the following factor. No matter how high-quality, durable and practical double-glazed windows are, improper installation can lead to various operational problems. Therefore, it is necessary to entrust the installation of double-glazed windows only to experienced and qualified craftsmen.

Comparison procedure

Before you begin directly comparing all three brands, you need to decide on the key parameters. When choosing a plastic profile, you should pay attention to the following characteristics:

• intimacy;
• profile thickness;
• double glazing;
• energy saving;
• type of seal.

In addition, sound insulation is no less important. This feature depends on several factors. Firstly, the build quality of the profile. This implies the tightness of the joining of frames. Secondly, the quality of the glass unit. Experts note that the air pocket formed between the two glasses reduces the sound level and muffles it. Thirdly, seals. The level of noise insulation also depends on the tightness of the rubber layers to the frames.

Additional Information

When choosing plastic profiles, fittings play a significant role. Modern designs have innovative child protection, which is extremely important for residential premises. In addition, the quality of the fittings affects the following:

• ease of use;
• durability.

When buying frames, consult with a specialist and tell him about your wishes. It should be noted that each of these brands has a wide range of models, which allows you to choose the most appropriate option.

Thermal imaging studies

I suggest you take a moment away from the issue of sound insulation and familiarize yourself with the results of the research. This information is absolutely reliable. The published report can be easily found on the Internet.

For comparison, experts chose the profile of the VEKA and Rehau brands. The measurements were made using a thermal imager - a device that measures the temperature of the surface under study. Experts examined the coldest points at a temperature outside the window of -15 degrees Celsius. The results look like this:

• VEKA – 14.5 degrees;
• Rehau – 4.4 degrees.

This is also affected by the fact that the Rehau contour seal is twice as thin as that of a competing company. From this we can conclude that the sound insulation of the VEKA profile is much more effective.

Final result

Despite the fact that all of the listed brands are in great demand on the market and are sales leaders, it is VEKA windows that are of the highest quality and warmest. Unfortunately, I do not have reliable data regarding Deceuninck brand products, but experts note that they have similar performance. Therefore, the last aspect you can start from is cost. Choose what you can afford, and you won’t go wrong.

Peace to your home!

Best regards, Alex Grimm.

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Outer wall width

Rehau does not spare money on quality materials, so the width of the outer wall of their profiles, following state standards, is three millimeters. However, the company makes exceptions for budget series, the width of the outer wall of which is 2.8 mm.

The width of the outer wall depends on:

• Profile rigidity.
• Resistance to mechanical stress.
• Resistant to deformation.

Deceuninck produces profiles with wall thicknesses starting from 2.5 mm. Due to this, they reduce the cost, allowing you to purchase models for windows in non-residential premises.

Comparison of plastic window profiles

Comparing the profiles of plastic windows is an important step when choosing the windows themselves. The list of advantages you receive (as well as disadvantages too), as well as the validity of the final price of the window, depends on the correctly chosen material. We wouldn’t particularly recommend saving on your profile, but you also shouldn’t pay too much for unobvious advantages.

So, the following profiles are most common in our market: KBE, Veka, Rehau, Deceuninck. In principle, all 4 brands presented are at least normal. That is, when choosing these windows, you do not risk getting outright hackwork.

KBE

This profile is presented in several modifications, the most popular of which are: “Expert”, “Extra” and “Standard”. They differ in the thickness of the plastic, the number of chambers and other design parameters.

The “Etalon” profile belongs to one of the latest series of the company, and is produced on the basis of modern technologies, implying the maximum level of energy saving and noise insulation. However, if you live in regions with a relatively mild climate, you simply do not need most of the proposed characteristics, so you are better off choosing a profile like “Expert”.

The service life of the profile of this brand is about 45 years. The production technology ensures that there are no harmful emissions in the plastic. In addition, the material does not require special care.

Veka

The profile of this brand has lost ground somewhat in recent years, although previously it was almost the most popular. One of the reasons for the decline in popularity is reports of the discovery of lead oxide in the material, which is due to the peculiarities of the production technology of the polymer composition for the profile. This substance does not have the most positive effect on the human body. Despite the fact that there is no reliable data on elevated lead levels, it is quite difficult to stop popular fears.

Otherwise, it is in no way inferior to the one discussed above: there are several modifications that have structural differences. The service life is also about 50 years.

Rehau

But this brand, on the contrary, is gaining popularity year after year. The company offers various lines of profiles with different parameters. A good option for the middle band is the Basic series, which has quite sufficient characteristics at a reasonable price.

Most Rehau windows have structural solutions for installing additional equipment: climate control systems, special locks, etc.

Deceuninck

This Belgian company is a relative newcomer to the Russian market. The most popular profiles are Favorite and Bautec. The first of them is distinguished by a large number of air chambers, which makes it an extremely reliable barrier to heat loss. Again, if you live in regions where winters are not as harsh as winters, then you don’t need to overpay for something like this.

In general, the popularity of this manufacturer is growing due to its quality, comparable to the previously reviewed giants, combined with a lower price.

So, we have presented you with a framed picture. If you are seriously choosing plastic windows, comparing profiles is the first thing you should contact the seller with. They will tell you in more detail about the advantages and disadvantages. However, remember that they will try to sell you what is more expensive, so evaluate the actual characteristics and discard those that you do not need.

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Waterproofing

To ensure that the window sash fits tightly to the frame, a seal is used, usually made of rubber. The element is responsible for sound protection, moisture resistance and thermal protection.

The Deceuninck company creates profiles with a double-circuit seal for the economy class, and three-circuit for more expensive series. The seal is a chamber with a petal adjacent to it. This type of seal is unique to the series of this brand.

Rehau uses an exclusive seal with four chambers and two petals without a gap between them for its profiles. This allows you to protect the petals from moisture and ice.

The newest seal from Rehau is in many ways better than others in terms of quality of connection to the frame, service life and ability to withstand low temperature conditions.

Windows in Moscow are wooden, plastic, energy-saving aluminum.

Window profiles from REHAU and Deceuninck belong to profiles of different classes (REHAU is positioned as an affordable window profile, and Deceuninck is positioned as an elite-class window profile) and it is not entirely correct to compare them. However, everyone wants to know why elite profiles are better than ordinary ones, and therefore we will make such a comparison.

Today, REHAU offers seven types of window profiles: REHAU Basic-Design, REHAU Basic-Design with a wide frame, REHAU Thermo-Design, REHAU Sib-Design, REHAU Brillant-Design (it can be classified as an elite class profile), REHAU Euro-Design and REHAU-Delight-Design. Deceuninck offers six types of window profiles: Bautec, AD (these profiles can be classified as economy class), Favorit, Zendow, Forward and Prestige.

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The technical characteristics of the compared window profiles are presented in the table, where:

The installation width is the width at which this profile is installed. The larger it is, the wider the window system is.

The maximum thickness of a double-glazed window is a parameter that shows how thick a double-glazed window can be installed in a given profile. The thickness of the glass unit depends on the number of chambers and the width of the gaps used in its manufacture.

The number of chambers is the number of air chambers built into the profile (do not confuse it with the number of chambers in a double-glazed window, these are completely different things). The more there are, the warmer the window profile becomes (due to the heat-insulating properties of the air).

The heat transfer resistance coefficient is the most important parameter, since it shows the ratio of the temperature difference between the inner and outer surfaces of the window to the heat flow density through it. The higher this coefficient, the lower the heat loss, and therefore, the warmer the room.

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Reinforcement type

Plastic is a very fragile material. To increase the strength characteristics, it is reinforced with a galvanized steel profile. This action allows you to create windows of different sizes and shapes.

Deceuninck uses a G-shaped reinforcing profile for systems 70 mm and wider, and a U-shaped reinforcement profile for economy class profiles. Rehau only uses a G-shaped reinforcing profile. Such reinforcement is much more advantageous in terms of strength without greatly increasing the weight of the structure.

Deceuninck Favorit Crystal

A distinctive feature of this 5-chamber system is two white sealing contours and the original shape of the profiles, the outer side of which resembles the edges of a crystal due to the 45% bevel of the frame and sash profile. This design feature explains the name of the windows.

The Favorit Crystal system is suitable for assembling structures adapted for the installation of double-glazed windows. Favorit Crystal profiles have high static stability, due to which products made from them are reinforced

steel liners

, tolerate even extreme wind loads well.

Maximum glass thickness

Most of the window is occupied by double glazing. The wider it is, the better the thermal protection and sound insulation of the window. The Deceuninck company offers the Bautec and Favorit lines with the ability to install double-glazed windows with a maximum thickness of 47 mm. Rehau's widest glass unit with three chambers for the Geneo series is 53 mm. For many countries in Russia, double-glazed windows with two chambers with a thickness of 32-36 mm are suitable.

Products with a thickness above 36 mm are excellent for cities in the northern part of Russia, as well as for places with highly developed infrastructure. Translucent products over 36 mm are installed on windows in northern cities and in places of increased transport or industrial activity.

Comparison of prices for profile systems

To better understand how the price of windows is formed, let’s consider the main criteria for cost formation:

• profile quality;
• technical characteristics of the glass unit;
• hardware manufacturer;
• complexity of window design;
• decoration;
• type of instalation.

The price does not differ significantly. Rehau and Deceuninck are almost on the same level, but upon closer examination you will notice that the latter is still more expensive. This can be observed from the table below.

Average prices are indicated, which may vary depending on the manufacturing company.

Appearance and service life of Deceuninck and Rehau windows

Both companies produce a huge selection of products with different designs and recognizable styles. The Rehau brand produces products with a perfectly smooth surface, which have been appreciated by thousands of customers. The exclusive shape of the seal is also the pride of the company. All indicators ultimately allow Rehau windows to last more than 60 years.

Deceuninck designs are very popular due to the possibility of installing a wide double-glazed window and the external attractiveness of the model itself. And their service life is more than 60 years.

As you can see, the technical characteristics of both brands are almost the same. However, Rehau profiles are much more affordable. In our company, we are ready to offer you profiles of both brands at the most reasonable prices. We approach each client individually, taking into account all existing requests and wishes.

Conclusion: which profile is better?

If you combine the technical characteristics and reviews of owners about different types of plastic windows, then the Rehau company will become the leader . The advantage of its products is not so great as to indicate a big gap with competitors. There are slight differences in the quality of the seals, the price and quality of the windows are more harmoniously combined, and the durability declared by the company is attractive.

At the same time, it must be taken into account that the choice of any other types of windows does not mean significant losses in quality. It is important to remember that the result largely depends on the quality of assembly, installation and operating conditions of the windows. Therefore, it is inappropriate to talk about the quality of the profile alone; it is necessary to discuss the finished product.

Product range of Rehau and Deceuninck

A huge range of products means you can choose a high-quality solution for glazing your home. There is no single ideal profile system that would satisfy the desires of thousands of users. In this regard, the companies Rehau and Deceuninck have developed a number of profile lines that solve a specific problem. To understand what you need, you need to start with a review of popular profiles for plastic windows.

Rehau products

The most popular models of the German concern are:

You can read more about each system in this section.

Deceuninck products

Every year, Deceuninck releases improved models of its own lines, which +/- differ in technical characteristics, so let’s look at the main range of products:

Deceuninck Prestige

Prestige system

The PRESTIGE system is an exclusive six-chamber window system with an installation depth of 76 mm, intended primarily for luxury construction. Thanks to its excellent thermal properties and exclusive design, this system is able to satisfy the highest requirements in terms of heat conservation and aesthetics.

Brief technical characteristics of the Deceuninck “Prestige” system:

Comparison table of Rehau and Deceuninck profiles

So that you can quickly compare and make a choice, we have presented the main parameters of the various profiles of both brands in the form of a table.