Which plastic windows are better to put: the subtleties of choosing window structures + the top five manufacturers

We choose only the best windows for an apartment: recommendations from real experts

As for wooden frames, everyone can say a lot, because these simple and at the same time quite good designs are familiar to each of us from childhood. Wooden frames are environmentally friendly, they do not emit harmful substances, they are quite durable, and besides, they also allow the natural regulation of the movement of air masses in the apartment, which is why the need for forced ventilation simply disappears.However, wood frames require constant, regular maintenance, they are quite hygroscopic, and from moisture absorption and subsequent drying, they can easily deform and become unusable. Also, a tree cannot provide adequate protection from noise from the street, precipitation, dust, and, on top of that, heat losses through them are enormous.

Interesting

If you understand which windows are better to put in an apartment, you should pay attention that the main factor that will have to be taken into account in this case will be energy saving and thermal insulation. There is no need to think that all plastic window blocks are exactly the same, not at all, in the best cases, at an ambient temperature of up to minus five degrees, subject to correct installation, the temperature directly near the inner glass can be plus twenty, and this inspires respect

Thus, the question of whether it is worth putting wooden windows in an apartment disappears by itself, since they simply cannot be compared with PVC structures in any way, the main of which is thermal insulation in the winter, as well as protection from the bright sun and excessive sweltering in the summer heat. But this is not all that distinguishes high-quality metal-plastic blocks from obsolete wood, which, however, also has its own advantages, for example, it is absolutely not harmful to health.

When thinking about which windows are better to put in an apartment, you should think not only about thermal insulation, but also about the noise that especially bothers residents of large cities that live near busy highways and roads. This indicator will directly depend on the thickness of the glasses themselves, as well as on the distance at which they are placed relative to each other.

This factor must be taken into account for those who are prevented from sleeping by the noises of a big city or the hustle and bustle of the day does not allow them to concentrate.
It is also important to take into account the safety of the structure, that is, how much the system can protect the house from hacking. Of course, on the twenty-fifth floor of a skyscraper, this is not as important as in the private sector, however, there have been different cases
Therefore, plastic windows must be chosen with high burglary resistance.
Pay attention to the quality of all materials and raw materials used in the production of windows, as reliability and durability will depend on this.
Do not forget also about mosquito nets and other little things that then negatively affect your life.

If you pick up all the accessories on time, then there will be much less problems.

Among other things, when considering which plastic windows are better to put in an apartment, you must definitely focus on the market and all the offers that exist there. In fact, today there are a good two dozen world-famous manufacturers and as many, if not more, smaller firms that are also able to provide high-quality and beautiful designs. Let's take a closer look at how to choose PVC windows for an apartment, what else needs to be considered and how to be guided initially.

The best plastic windows with burglary protection

Windows should not only maintain a comfortable indoor climate, but also prevent intruders from entering - especially if you live on the lower floors. Window structures equipped with special fittings perfectly cope with this task.

Veka Softline – safety and reliability

4.9

★★★★★
editorial score

72%
buyers recommend this product

See review

Windows of this series are equipped with tilt-and-turn anti-burglary fittings. Anti-vandal impact-resistant double-glazed windows are made of glass, connected by a special method (triplex) - like in cars.

Such packages are more resistant to accidental impacts, and also prevent fragments from scattering to the sides if the window does break.

The mounting width of the five-chamber profile is 70 mm. The possible width of the double-glazed window does not exceed 42 mm.

Advantages:

• The locking pins on the sash cannot be opened with a pry bar;
• A special pad prevents drilling a hole opposite the handle and turning it from the outside;
• High noise and heat insulation characteristics;
• Three seal color options (black, grey, caramel);
• There is a white and color profile.

Flaws:

Fairly high cost.

Veka Softline will suit residents of the private sector. Through them it is impossible to quietly enter the house - only if you break the double-glazed window. Therefore, you should immediately purchase special sensors for windows and connect them to the alarm.

Schüco Corona Si 82 – a new level of comfort and safety

4.9

★★★★★
editorial score

72%
buyers recommend this product

The profile of the Corona series attracts with smooth outlines and graceful contours that emphasize the architectural features of the facade of the building.

The increased mounting width of the six-chamber profile is 82 mm, which increases the level of security and the degree of protection of the structure against burglary. The heat transfer resistance coefficient of the window system also inspires respect - 0.95 m2 ° C / W.

Advantages:

• Three levels of seals provide excellent tightness;
• High noise and heat insulation characteristics;
• Long service life (up to 60 years);
• The silver-gray color of the seal visually expands the space;
• Reliable hardware.

Flaws:

The profile itself will require installers to have sufficient experience in installing this particular system.

Schüco Corona anti-vandal windows can be installed in cottages and apartment buildings of any climatic regions, as they also have high energy-saving characteristics.

industry monsters. Sales leaders.

Why are these plastic windows in our rating: Most popular

VEKA profile Naro-Fominsk district, Gubtsevo village

The average price in the Russian Federation of a window with a size of 1470x1420 from a profile 70 mm thick: 9500 rubles

The profile is produced near Moscow by VEKA Rus. This is the first such enterprise in Russia. In addition, there are branches in Novosibirsk and Khabarovsk. The head office of VEKA AG is located in Sendenhorst, Germany. The company produces six types of profiles:

• EUROLINE - three chambers, width 58 mm
• PROLINE - four chambers, 70 mm wide
• SOFTLINE - five chambers, width 70 mm
• SWIGLINE - five chambers, width 82 mm
• SOFTLINE 82 - six to seven chambers, 70 mm wide
• ALPHLINE - six chambers, 90 mm wide

The products are certified according to ISO 9001: 2008. The profile of the company "VEKA" has been awarded the German RAL quality mark, which means that the control procedure for the raw materials used and the finished product complies with the control standards.

Moscow region enterprise:

Pros:

• Stable quality
• Large product line

Minuses:

Price

Typical reviews about VEKA windows: “The profile itself is good, it showed itself perfectly in winter, pah-pah, but in truth it’s expensive. I still tend to believe that this is an overpayment for the brand ... "" ... the company is quite well-known, it seems to me that in our city most of the advertisements of this particular company.And banners hang along the roads, and the press writes on main pages, and on TV videos are shown "

Profile REHAU Gzhel

The average price in the Russian Federation of a window with a size of 1470x1420 from a profile 70 mm thick: 9500 rubles

The German company has been manufacturing window profiles in Russia since 2002. Currently, it is the leader in terms of the number of products produced per year among similar Russian enterprises. The plant is equipped with modern equipment and certified according to the quality management system by independent international experts. Clients are offered the following types of profile:

• GENEO - 6 chambers, width 86 mm
• INTELIO - 6 cameras, 86 mm
• BRILLANT-DESIGN - 5 (6) chambers, width 70 (80mm)
• DELIGHT-DESIGN - 5 chambers, 70 mm
• SIB-DESIGN — 3 + thermoblock (5) chambers, 70 mm
• EURO-DESIGN - 3 chambers, 60 mm
• BLITZ - 3 cameras, 60mm

Note the company's slogan: "Avoiding mistakes is more important than eliminating mistakes" and the culture of production (pictured is a plant near Gzhel).

Pros:

• Quality
• Manufacturer's Warranties
• Large selection of profile models

Minuses:

Price

Typical reviews about REHAU windows: "... they were a little expensive compared to others, but it's worth it" "The windows are very good, I wanted something cheap, in the end I chose the most expensive one, the quality is really impressive"

Profile KBE (KBE) Voskresensk

The average price in the Russian Federation of a window with a size of 1470x1420 from a profile 70 mm thick: 7700 rubles

KBE is another German company that has built enterprises in Russia, in particular, factories in Voskresensk and Khabarovsk. No special differences between the KBE profile and competitors' products were found. However, the cost of CBE is somewhat lower.At the same time, the profile of the company is ISO certified, and the marketing move for issuing partner certificates is respected. Let me explain: the company issues the “Official Partner Certificate” to the best processors and thus can indirectly influence the quality of finished windows. I must make a reservation - this certificate does not give any guarantees to the consumer.

So, the list of products:

• "Etalon" and "Engin" - 3 cameras, width 58 mm
• "Etalon +" - modification "Etalon" with an additional chamber, mounting width 127 mm
• "KBE_SELECT" - 5 chambers, width 70 mm
• "KBE_Expert" - 5 chambers, width 70 mm
• "KBE_Expert +" - a modification with a mounting width of 127 mm
• "KBE_Energiya" - 3 chambers, width 70 mm
• "KBE_88" - 6 chambers, width 88 mm

KBE plant in Voskresensk

Pros:

• Price
• Quality
• Large selection of models

Minuses:

not detected

Typical reviews about KBE windows:

Varieties of designs

Initially, it seems that the profile, even from different manufacturing plants, has the same structure, but this is an erroneous opinion. The difference in quality characteristics will become noticeable after a couple of years of use. Windows from a cheap segment often change their geometry (they tend to warp), cracks form in such profiles, which provokes negative consequences.

Answering the question of which profile for windows is better, it is required to evaluate the distinctive features of various designs. Profile - the main part of the window, created from metal-plastic, wooden base, aluminum and PVC.

On average, buyers order a PVC profile, as it is additionally equipped with steel inserts that provide increased durability, strength and rigidity.The design itself necessarily has cavities with air, which are the basis for the formation of a high level of sound and heat insulation. Some manufacturing plants fill the cavities with special nitrogen, which makes it possible to prevent glass fogging during temperature fluctuations.

PVC profile

There is a classification of window profiles:

• Class A. The size of the outer wall of such a profile is 2.5 mm, the thickness of the inner layer will not be more than 2.6 mm. Thanks to these design features, excellent protection against the negative effects of weather conditions is formed, ideal parameters for heat preservation are created.
• Class B. In this option, the walls will be less thick. Internal - no more than 2.1 mm, and external - 2.6 mm. This option is ideal for use in warm climates. Due to the lower wall thickness parameters, the risk of deformation changes in the structure increases (by 16%).
• Class C. In this option, manufacturers independently determine the wall thickness, since there is no product certification, which eliminates strict requirements for finished products. These options are popular due to their low price, but their quality is incredibly low.

The choice of double-glazed windows

The main element of the window construction is a double-glazed window. The illumination, heat and sound insulation of the room depends on it. The number of double-glazed windows directly affects the level of heat transfer from the room to the street and, accordingly, the weight and cost of the entire window. It is on this element that you need to pay maximum attention when buying a window.

Single-chamber double-glazed windows are the simplest and most inexpensive choice. Its other advantages are high transparency, low weight. Cons: poor sound insulation, thermal insulation far from ideal for the climate of most of Russia.

The two-chamber version is the most suitable for our latitudes. According to statistics, all indicators of such a double-glazed window are on average one third higher than that of a single-chamber one.

The three-chamber version is ideal for the conditions of Siberia and the Far North. The difference in performance between it and double glazing becomes apparent only at temperatures below -40 degrees Celsius. Requires the use of stronger reinforcements and a wide PVC profile. Rooms with such windows will always lack lighting.

How much do windows cost

Plastic designs:

1. The cheapest small PVC window without opening mechanisms will cost about 800 rubles. And about 2-3 thousand, if you need at least a single-wing design.

2. The standard "apartment" version with one transom and an additional one will already cost from 3800 rubles, and a frame for a wide opening - from 5 thousand and more.

3. The ceiling for complex metal-plastic structures is at the level of 17-18 thousand rubles. Glazing of a bay window or loggia will be 50% more expensive.

Wooden windows:

1. Classic "Russian windows" start from 3.5-4 thousand rubles.

2. For 5000-9000 you can buy an inexpensive bi-fold frame made of solid wood with a sealed double-glazed window.

3. The use of glued laminated timber and glass blocks will increase the cost of finished products to 20-45 thousand rubles (three-leaf frames will come out 1.5 times more expensive).

Aluminum profiles:

1. A frame with a "cold" aluminum profile and standard glazing can be ordered for at least 9.5-10 thousand.

2. For "warm" designs they ask for 15-20 percent more.

Types of profiles and their classification

The main structural element of the sashes and the frame is the profile.It determines not only the aesthetic perception of the window, but also its strength characteristics, service life. Eurostandard EN 12608 SR and GOST 30673-99 PVC profiles are classified according to several parameters.

1. The thickness of the outer walls. The profile is a closed hollow structure with a system of partitions inside. All the main consumer properties of the window depend on the thickness of the walls forming the structure: cost, strength and durability.

The European standard distinguishes the inner and outer walls of the plastic profile. Internal include all the outer walls of the profile invisible to the eye in an already installed window. From the first definition, it logically follows that the outer (external) walls are front at the window and are visible both from the inside of the room and from the street (see photo).

Depending on the thickness of PVC in the outer and inner walls, there are three classes of profiles (in this regard, the Russian standard is more stringent):

"A" - the thickness of the outer walls >= 2.8 mm, internal >= 2.5 mm according to the European standard (minimum 3.0 mm at the outer wall according to GOST), which ensures a high level of window strength, the best heat and sound insulation;

"B" - for the outer walls, the thickness is from 2.5 mm, for the inner walls - from 2.0 mm (coincides with GOST). The profile of this class is 10-15% worse at keeping heat, 12-17% less resistant to various kinds of deformation, 10-20% worse at blocking street noise;

"C" - European standard and GOST do not impose specific requirements on this profile class. Mostly windows for non-industrial objects are made from it.

A number of companies, meeting the requirements of one of the parameters of class B, which is important, make economy class windows for the population (in general, this is a class C profile).

Classification of the profile according to the wall thickness in accordance with the European standard.

Unscrupulous window installers, relying on a low price, persuade customers to install an “objective” profile (class C, not a single parameter corresponds to classes A and B), intended for non-residential premises (in fact, the price is almost twice as high as the real one, but significantly lower than the cost profile B).

Such windows do not hold heat and are quickly deformed. It is visually difficult to distinguish such a profile from a standard one (class B or A) - measurements are needed with a caliper. They can also help determine the quality of the proposed lettering profile on the protective film "object".

It is easier for consumers who understand the profile classes to decide which plastic to choose for their windows.

2. By temperature zones. In Europe and Asia there are countries with a very hot climate, temperate and cold. Window manufacturers took into account the current situation and produced their own product line for each zone. In Europe, it is tied to the hottest month of the year, in Russia - to January.

Depending on the average temperature in January, the profiles produced can be:

• lightweight version - for countries with a hot climate, where the average temperature of the coldest month remains positive (they must withstand a short-term drop in temperature to -5 degrees Celsius);
• standard version - for a temperate climate zone with an average temperature of -20 ° C in January (the maximum allowable negative temperature is -45 degrees Celsius);
• frost-resistant - for the Far North, where the temperature drops to minus 55 degrees Celsius.

In Russia, the last two types are mass-produced.Lightweight windows are produced only by the Russian company Krauss (Krasnodar) - they cover the entire south of Russia.

3. Resistance to mechanical stress. According to impact resistance, the profile is divided into I and II classes. Class I PVC must withstand the fall of a special impactor weighing 1.0 kg from a height of 1.0 m at a plastic temperature of minus 10 degrees Celsius. For class II, the drop height is increased to 1.5 m.

This classification allows you to determine how correctly the internal partitions are located (they counteract the deflection of the outer walls into the structure during mechanical action) and how the plastic reacts to a decrease in temperature (everyone knows the property of plastics to become brittle in severe frosts).

No. 12. Necessary little things for the window

When installing a plastic window, you should not save on trifles - this will not bring great benefits. It would be much more reasonable to provide the structure with everything necessary so that its operation is as durable and comfortable as possible.

What are the necessary elements to add a plastic window? Among the most important:

mosquito net. Everyone is convinced of its necessity with the advent of spring and summer, because this simple detail protects the house from poplar fluff, leaves, insects, dirt particles, without interfering with the free circulation of air. Usually the mesh is inserted into the frame and can be easily removed from it, but you can provide it with your own loops - this is an option for large windows;

window sills play a decorative and functional role;

platbands - overhead strips for decorating a window opening, made of the same material as the window sill;

slopes are strips that are inserted between the window profile and the walls

It is important that these elements are made with the highest quality, otherwise, due to high humidity, they will become moldy;

the ebb is installed from the outside and is designed to quickly drain precipitation. It may seem that this detail is not so necessary, but without it, the waterproofing of the window is gradually broken.

How to choose?

When choosing a window profile, you first need to decide on the material of manufacture. If an aesthetically attractive appearance and high standards of environmental safety are important, then it is better not to pick up a wooden profile. Modern fiberglass and aluminum windows are suitable for a progressive design interior. An acceptable solution may be a PVC profile system.

The selection is made according to the following criteria:

• Profile size. It is characterized by the installation width and is determined by the installation site and operating conditions.
• available budget.
• number of cameras.
• Products have a certificate.
• Depth and width of the double-glazed window seat, profile class.
• The presence of reinforcement.
• Appearance and color.

It depends on the atmospheric conditions of the local climate. In the southern regions, you can install a narrow profile with a depth of 58-60 mm. In temperate climates, systems with a width of 70-84 mm are suitable. In harsh northern conditions, it is preferable to install an energy-saving profile with a width of 90 mm or more.

You also need to consider the location of the profile system. For an unheated balcony or loggia, a narrow profile of 58 mm or less is suitable. On high-rise floors, a profile of 70 mm is installed. For public and commercial buildings, a profile with a depth of 58-70 mm is suitable. For suburban individual construction, 70-90 mm systems are used.

Depending on the price category, there are several classes of profiles:

• economy;
• standard;
• exclusive;
• elite.

Economy class profile structures are the most budgetary with low quality and thermal insulation characteristics, a width of not more than 58 mm and a wall thickness of class B or C. The Standard class complies with GOST and European standards, three-chamber, with a width of 58-60 mm. The best solution for quality and price.

Elite profiles with an installation depth of 70-80 mm allow marking 40 mm glass, class A walls, 5 chambers. Thermal insulation is 15-20% higher than that of Standard profiles. The exclusive profile system is 2 times warmer than the elite one. The most expensive choice, emphasizing the status of the owner. Width 86-90 mm, 6-7 chambers and a double-glazed window up to 5 cm. The number of chambers corresponds to the width of the profile. A 58mm profile cannot contain more than three cameras. Depth of 70 mm allows to accommodate from 3 to 5 air chambers. The 90 mm profile has 6-7 chambers. The same profile width, containing a different number of chambers, slightly affects the thermal insulation characteristics of the entire block.

Quality window profiles are RAL certified. A certified product is a guarantee of long-term operation and compliance with all manufacturing cycles. The factories where the products are manufactured also receive the ISO9001: 2000 quality management certificate. The thickness of the insulating glass unit, which is installed in the seat, is associated with the dimensions of the profile. Its depth should be more than 1.8 cm, it increases with increasing depth. The most optimal in terms of characteristics is a double-glazed window.

The durability of the profile structure depends on the wall thickness class of the profile. Class A profiles provide strong welds and a solid structure.Class B is able to provide the necessary reliability to small window blocks. Although class C is widely used for budget construction, its strength is small, the corner joints are thin, and the tendency to deformation and distortion reduces the service life.

In appearance, you can characterize the quality of the plastic. It is smooth to the touch, without chips or scratches. It should have visible streaks, there should be uniformity of color. The choice of color depends on the interior of the room. Many manufacturers offer a variety of colors.

Choose a profile

This element is the main part of the window metal-plastic construction. It is on its quality that the life and efficiency of the operation of the window, its insulating characteristics, and the aesthetic appearance depend.

There is no fundamental difference between the profiles from the world's leading manufacturers. Therefore, when choosing which plastic windows to install, be guided, first of all, by a certified profile that meets GOST and other standards.

Studying the characteristics of the profile, attention should be paid to such a concept as reinforcement. This technological process turns the profile from ordinary plastic into metal-plastic, making it more durable and rigid.

The essence of this process is as follows: a steel or galvanized profile is placed in the inner chamber of the profile. The thickness of the latter varies from 0.5 to 2 mm. It is necessary to select this parameter based on technical requirements.

Reinforced profile

The best plastic windows have a more complex design. Thus, a quality product from leading manufacturers is characterized by a wall thickness of 3 mm. It will not bend, deform, form cracks.

A high-quality profile must be made of galvanized steel, since this metal makes the structure lighter, fixes the shape of the window as much as possible, and also protects the window from sudden temperature changes. If the manufacturer uses non-galvanized metal, it is likely that such structures will begin to rust long before installation.

Depending on the wall thickness, the profile can be assigned to one of three classes:

1. Class A. In such structures, the thickness of the inner walls is 2.5 mm, the outer - 2.8 mm. These are the best windows for living spaces, as they do the most effective job of thermal insulation.
2. Class B. This option is most often used in non-residential premises, since it retains heat much worse. The thickness of the outer wall is 2.5 mm, the inner wall is 2.0 mm.
3. Class C. Products for which there are no particularly stringent requirements.

Wall thickness of class A profiles

Wall thickness of class B profiles

The thicker the profile, the better and stronger the construction.

As for materials, most often this component is made of PVC. The latter is completely environmentally friendly, it is not prone to deformation. It is not affected by temperature changes, high humidity, acids, solvents. From PVC, you can create structures of almost any shape, which will differ in uniformity of color, texture, and the absence of smell.

If you choose the right profile, you can install windows that will last up to 50-60 years.

Top 15 Best Brands

Leading brands

Study the table, which clearly shows the characteristics, advantages and disadvantages of popular brands. It is difficult to indicate approximate prices, since, due to high competition, window companies regularly launch promotions and arrange inter-seasonal discounts. The cost also depends on the shape of the window opening, the individual parameters of each dwelling.

Name / Feature	Producing country	Advantages	Flaws
Veca is the most demanded brand in the Russian market.	Germany / Russia	The absolute leader in terms of territory coverage, number of sales, demand; Profiles are suitable for operation in any weather conditions.	There is a risk of running into a fake.
KBE - reasonable prices, a large selection of profiles.	Germany / Russia	A wide variety of products for different climates; Quality fittings.	Over the years, the plastic may turn yellow (for models made in Russian factories).
Rehau - high quality constructions with innovative design.	Germany / Russia	Low percentage of defects due to responsible observance of technological standards in the manufacture; High parameters of thermal insulation.	New models are expensive.
Salamander is a quality but very expensive brand.	Germany	Reliable and high-quality designs; Long service life.	The cost is 1.5-2 times higher than most competitors.
Tropical - more than 60 years on the world market.	Germany	The sets are distinguished by increased resistance to deformation, reinforcement rigidity; Exquisite design.	Not a wide range.
Proplex - European quality.	Russia / Austria	Plastic is distinguished by high strength and quality; Low cost.	The company does not have a certificate of compliance with international standards;
COK is a Samara plant that produces profiles at the KBE plant.	Russia	Products are manufactured according to the developments of the KBE holding; Long service life; Wear resistance.	Plastic may yellow over time; Prices are somehow higher than the original profile from KBE
Krauss - produce profiles for warm climates (lightweight options).	Russia	A good product for areas with year-round positive temperatures; Affordable prices.	Windows are not suitable for climates with cold winters; Thin rubber bands.
WDS is a reliable Ukrainian brand with limited coverage of the Russian market.	Ukraine	Profiles perfectly tolerate the effects of the external environment, even with aggressive climatic conditions; Good assortment.	The company is not too active in the Russian market.
Deceuninck is a worthy competitor of foreign manufacturers.	Belgium / Russia	The company has a number of awards, certificates and marks for excellent products.	High prices.
Kaleva is a domestic company fully operating in Russia.	Russia	Digging carries out a full cycle of works: measurements, design, profile manufacturing and installation;	Judging by the reviews on the Internet, there are complaints about the quality of the product. Sometimes it is necessary to dismantle the system and install a new one.
LG Chem - South Korean brand uses the highest quality plastic. The profiles have excellent insulating properties.	South Korea	Excellent thermal insulation and sound absorption; Safe materials; Low cost; Glossy plastic surface.	The active activity of the company is limited to the eastern part of the Russian Federation; Any scratches or damage are very visible on the gloss.
Montblanc - a Russian company uses reliable plastic and durable fittings. Prices are low.	Russia	Large assortment of profile geometries; Reliable hardware; Durability of structures.	There is no certificate of conformity to international standards;
Plafen - produces premium windows.	Austria / Russia	Plastic profiles authentically imitate natural wood, which looks expensive and spectacular; With high-quality installation, windows will last more than 50 years;	Cost is higher than competitors
Panorama is a Russian company with 20 years of experience and low prices.	Russia	Structures are strong and reliable; Decent insulating properties; Acceptable prices;	Inactive advertising, as a result of which few people know about the company.

Building bubble level | TOP-12 Best: current rating + Reviews

Dimensions, quality of seals and window fittings: only the best windows for an apartment

If in wooden window structures no one was worried about the width of the window frame, but the craftsmen did it, basically, at their own discretion, then for plastic structures it is not desirable that standards are observed and so on. The width of the profile cannot be less than five centimeters, otherwise the design will simply become completely unreliable, and this is unacceptable. Moreover, the more glasses, therefore, the “warmer” the system itself, the wider the profile should be, the most popular sizes today are 5.8-7 centimeters, they are also the most in demand on the market. A wider profile may look bulky, but in northern regions they are the most acceptable.

At the expense of the seal, it’s hard not to understand something, since it is these rubber bands that serve to completely cut off the very possibility of blowing and drafts, which follows from the name.They can be made from a wide variety of materials, for example, from the most natural rubber, silicone, rubber plastic and rubber itself. Moreover, rubber will be the cheapest, and silicone and rubber seals will be the highest quality. They will not sag for a long time and will not need to be replaced every six months.

Despite the fact that the name itself suggests that the window will be light, since plastic is a fairly light material, but this is not at all the case. This whole structure is quite heavy, and it is subjected to additional loads with enviable regularity, when opening and closing. Therefore, the fittings must be of high quality, durable, strong and reliable. Most often, complaints from consumers can be heard precisely that the handle has broken, the latch jumps in, hinges or scissors have broken, especially when budget design options were originally installed. Therefore, saving on fittings is definitely not an option, it’s worth paying a little more to then do not regret about wasted money.

Another important factor is the belonging of the window unit you have chosen for installation to any brand, that is, the manufacturer. It is not at all difficult to figure out the windows of which company is better to put in an apartment, since the main leaders in the world market have been identified for a long time, they produce the highest quality, and therefore demanded, products. The German brands REHAU, KBE and ALUPLAST are rightfully considered the best. VEKA and the Austrian company PROPLEX also proved themselves well. English MONTBLANC windows can also please with durability and reliability, and domestic Laoumann windows are distinguished by fairly good properties at a fairly low price.

What should be the correct plastic windows

Before buying, we advise you to compare several companies according to certain parameters (type of double-glazed windows, designs, materials used). The correct windows should be of a uniform shade, no graininess is felt to the touch. In simple words, these are plain and smooth materials, any blotches, bumps and smudges are not allowed.

No smell should come from PVC, but after installation, the presence of a plastic aroma is allowed for some time, this moment is considered the norm. If the window exudes a strong repulsive smell, in no case agree to the installation.

A double-glazed window isolates sound, transmits light and has a certain level of thermal conductivity. Check the glass for scratches and unevenness and do not settle for the installation of defective products. Otherwise, such windows will not serve you for a long time, replacement with new ones will be required in 2-3 years.