What is better to choose - a single-chamber double-glazed window or two-chamber

If you decide to install new double-glazed windows, then a number of questions will surely arise: how not to be mistaken with the choice, how to install it correctly and how much will such a structure cost.

Today, double-glazed windows with one, two and three cameras are available to buyers. Structures differ in thermal conductivity, sound insulation, light transmittance, thickness. Each option has its own characteristics and advantages.

We will try to understand the intricacies of the choice and the advantages of various types of double-glazed windows.

Double-chamber or single-chamber glass unit

A glass unit is a translucent glass structure. Takes up most of the window area. It lets sunlight into the room, prevents heat loss, and reduces the noise level in the home.

When changing from wooden windows to plastic ones, consumers inevitably face the question of choosing a single-chamber or two-chamber one. To make the right choice, you need to figure out what is the difference between them, determine the advantages and disadvantages of each of them.

Conclusions - which glass to choose for windows?

When choosing a plastic window, take into account the climatic features of the region where the structure will be used. It is also important to take into account the maximum wind load, the thickness of the walls in the house, the expected level of noise and thermal insulation.

To get detailed information, contact our specialists - by phone, through the feedback form on the website or come to our showroom.

We will help you with the choice of double-glazed windows, provide advice on each type of window system. Departure of a specialist to measure windows is free of charge.

Differences between single-chamber and double-glazed windows

Single-chamber consists of 2 glasses, separated by one aluminum spacer frame, hollow inside and filled with a special absorbent.

Dried air is pumped into the space between the panes, the remaining moisture is absorbed by the absorbent.

The thermal conductivity of air is 27 times less than that of glass. Due to this, the glass unit has excellent heat-shielding properties. To ensure the bag is airtight, it is protected around the perimeter with a double layer of sealant.

The difference between a two-chamber and a single-chamber is in the number of glasses in the structure. The two-chamber package uses three glasses, separated by two spacers. The result is two sealed chambers filled with air.

Each of the packages has its own characteristics that determine their advantages and disadvantages.

Advantages of a single-chamber double-glazed window:

• less weight, does not create an additional load on fasteners and fittings, so the windows do not fail longer;
• a single-chamber step-glazing unit, in which energy-saving glasses are used, retain heat no worse than a two-chamber unit;
• lets in more light (up to 80%);
• has a lower cost

Disadvantages:

• low coefficient of resistance to heat transfer, as a result of which condensation on the glass forms at a temperature of - 8 ° С; lower noise insulation index, reduces the noise level by 32 dB; heat transfer resistance 0.34 m² ° С / W, which is one third lower than that of two-chamber;

More on the topic What is a single-chamber double-glazed window - information for beginners

A double-glazed window has the following advantages:

• high coefficient of resistance to heat transfer, with an indoor air humidity of up to 50%, condensation on the glass forms at a temperature of -30 ° C;
• noise isolation up to 33-35 dB, noise protection is higher when using spacers of different widths in one unit.

Minuses:

• large width and weight, which leads to the fastest wear of the window block;
• they transmit light worse, the difference is up to 6%;
• one and a half times the price.

Experts are unanimous in the opinion that ordinary single-chamber bags are not suitable for Moscow, the Moscow region and Russia as a whole, with the exception of the southern regions.

Moscow is considered one of the coldest capitals in the world. The average January temperature is -14 ° C. Single-chamber double-glazed windows with low-emission glass or two-chamber packages with a thickness of 32 mm or more meet the requirements of SNiP ІІ-3-79 in terms of energy saving. These are the PVC windows that the company recommends to its customers.

The disadvantages of double-glazed windows in terms of thickness and weight are easily leveled by the use of high-tech reinforced window profiles and high-quality fittings. And a higher price in the coming years of operation is paid off by lower costs for electricity and heat energy for heating the premises.

Conventional single-chamber double-glazed windows can be installed only when glazing balconies and loggias, verandas, office buildings and other premises for which the task of keeping heat in the autumn-winter period is not paramount.

Otherwise, you will not feel the effect of installing modern plastic windows.

How to care for double glazing?

You can extend the life of windows if you follow the rules for their operation and care. Modern double-glazed windows are quite unpretentious and do not require special care. It is enough to clean them of dirt and dust a couple of times a year using plain soap, warm water and lint-free napkins. As for the glass, it is better to use special products for washing them so that stains do not remain on the windows.

Windows can be cleaned with a magnetic glass brush.

The seals should also be cleaned in a timely manner. If they are damaged, then the heat will begin to come out. In this case, no glass unit will save you from freezing.

Basic rules of care:

• Use lint-free wipes and warm soapy water to clean seals, window profiles and glass. If you want to use detergents, it is better to choose those that are not abrasive, as they can damage the surface.
• It is best to check all fittings periodically. If the elements and parts are loose, then they need to be tightened. In addition, the hardware should be oiled twice a year using a brush.

Glass unit replacement

Replacing a single chamber with a double chamber is possible within the package width for which the window profile is designed.

For example, the Rehau Euro Design profile allows the installation of a package with a width of 24 to 32 mm, but the Rehau Brilliant Design profile - with a width of 24 to 41 mm.

If the width of the profile is less than the width of the glass block, the latter simply will not fit into the profile, if less, a special glazing bead is used, which securely fixes the block in the profile.

To replace a glass unit you need:

• dismantle the old clamping strips, seals and the glass unit itself;
• install shims on the bottom of the fold;
• install a new glass block;
• install new clamping strips of the required width;
• adjust the window.

Replacing a single-chamber package with a new two-chamber package from an experienced craftsman takes no more than 10-15 minutes. However, the installation of PVC windows must be done carefully and carefully.

Possible damage to the glass unit (chips, cracks) will subsequently lead to a violation of its tightness.

Source: okonti.ru/press/2014/78/

Light transmission, sun and UV protection

The desire to make windows as insulating as possible can lead to the fact that the very transparency of the structure will be lost. Each additional sheet of glass reduces the transparency of your window by an average of 10%. Also, the glass itself affects the light transmission (low-emission glass transmits light worse than usual, and special anti-reflective glass is better than usual).

Characteristics of glasses and glass units in light transmission and UV radiation, calculated

At the same time, as can be seen from the table, 8 mm triplex glass does not significantly reduce transparency, in contrast to two 4 mm glasses in the construction of a double-glazed unit.

Windows with 4 panes of 4 mm each will deprive the house of natural light by almost 40%.

High light transmission is an important factor for normal life. Nevertheless, with sunlight, solar energy penetrates into the house, which can disrupt the microclimate of the room, negatively affect the decorative finish of the room and furniture.

Which double-glazed windows better retain heat in the house and protect against noise - single-chamber or double-chamber?

Until recently, to reduce heat loss in buildings, traditional glazing systems were used using window structures based on wooden frames with two, less often three, sheets of glass in their composition.

Since the beginning of the 90s, modern window systems with double-glazed windows have been actively used in construction.

As a rule, one-chamber and two-chamber are used. Single-chamber double-glazed windows are a hermetically sealed two-glass structure.

A thin-walled aluminum frame (spacer) with perforation, filled with special granules that absorb residual air humidity inside and protect the glass from fogging, is located between the glasses along the edge of the glass unit.

A double-glazed window along the entire perimeter is sealed with special plastic mastic. No moisture or dust gets inside the glass unit - the glass unit remains transparent and clean throughout its entire service life.

To increase the insulating properties in some models, the space between the glasses is filled with a safe inert gas, such as argon.

In two-chambers there is one more glass, a distance frame and, accordingly, a second isolated chamber. Otherwise, the design of double-glazed windows is similar to single-chamber ones.

Despite the fact that the addition of a third glass and a second insulated chamber significantly improves heat and sound insulating properties, traditional two-chamber double-glazed windows with ordinary glass cannot always provide the heat saving indicators required by regulatory documents.

It is also necessary to bear in mind that a double-glazed unit weighs (and costs) one and a half times more than a single-chamber unit, which imposes additional requirements on the design of the window profile, its ability to withstand a heavy and wide glass unit, and to fittings.

With the advent of energy efficient glass on the market, the situation has changed. Single-chamber double-glazed windows with such glass meet all the requirements of regulatory documents on resistance to heat transfer.

Their use has become expedient both from the point of view of energy efficiency and to reduce the total mass of the facade structure, in particular, plastic windows.

The use of single-chamber double-glazed windows based on energy-efficient glass reduces the cost of plastic windows and increases their service life (by reducing the load on the fittings).

In the case of increased requirements for heat transfer and comfort (expensive private houses with the installation of modern energy-saving warm windows SCHUCO CT70, SI82, SI82 +), the use of two-chamber double-glazed windows with a width of at least 48 mm and containing energy-saving glass is justified.

Unfortunately, energy efficient glass does not affect the sound insulating properties of glass units.

Therefore, if you live in the city center, your windows face a noisy street, or you just want silence, then the choice of plastic windows based on double-glazed windows will be quite justified.

Source: okna-piter.ru/articles/steklopaketi_2_3.html

Heat-saving glass unit for warm windows VEKA

With the advent of low-emission I-glass, heat loss through windows has been significantly reduced. In everyday life, the expressions "warm windows", "warm double-glazed windows", heat-saving double-glazed windows began to be used.

Influence of a glass unit on the heat-shielding properties of a VEKA Softline 70 window

Estimated values ​​according to the Guardian configurator

Windows with heat-saving double-glazed windows can be recommended for all heat-loving owners.

However, what should you do if on hot days you feel excessive heating of the air? Such a room needs special double-glazed windows - double-glazed windows capable of reflecting solar thermal energy outward.

Which is better - single-chamber or double-chamber?

Choosing modern plastic windows, people often have a question about which glass unit is better to choose.

A glass unit is a product that consists of a certain number of glasses.

A sealed chamber is formed between the glasses, which is mainly filled with sealed gas. A special aluminum profile is used to connect the glasses.

Among all the possible options, people often think about single-chamber and two-chamber double-glazed windows. Most of all they are interested in the difference between products and which one is more effective and acceptable for a particular region.

Advantages and disadvantages of a single-chamber double-glazed window

Such a double-glazed unit is a structure that consists of two glasses. They are separated from each other by an aluminum frame.

The space between the panes is sealed and filled with an absorbent. Such designs have certain advantages and disadvantages.

As for the merits, these include:

• low weight of the structure, which reduces the load on the fittings. As a result, the service life of the window is significantly increased;
• the possibility of using energy-saving glasses. The design with such glasses has high thermal insulation properties, no worse than that of a two-chamber package; windows with such a package let in a significant amount of light;
• low cost.

Unfortunately, such designs also have some disadvantages. Among them are:

• condensation formation at a temperature of 8 degrees;
• low noise insulation properties.

But, despite the presence of shortcomings, windows with single-chamber double-glazed windows are especially popular among the population. They are often used for glazing loggias and balconies.

Advantages and disadvantages of two-chamber designs

As for the two-chamber ones, they consist of three glasses, which are separated by an aluminum profile. In such double-glazed windows, two chambers are created, which are filled with an inert gas.

The advantages of a double-glazed window include:

• high resistance to heat transfer. Condensation on glass forms at very low temperatures, which are 30 degrees below zero;
• good sound insulation properties.

As for the disadvantages of such designs, experts point out:

• large weight, which significantly makes the window unit heavier;
• significantly low light transmittance. If single-chamber windows transmit 80% of the light, then two-chamber windows - 74%;
• high price.

Often, plastic windows with a double-glazed unit are used for glazing living quarters.They allow you to reduce heat loss and maintain the temperature in the room for a long time.

Three-chamber mechanism

This type of double-glazed window is used in the northern regions, since at low temperatures it shows the greatest thermal stability. Such a structure already consists of 4 glasses and three chambers between them. The thickness of the entire glass unit is 58-60 mm.

Triple glass protects against heat loss 50 percent more than double glass. But there is a caveat that at temperatures below 40 degrees, this indicator is noticeable, but at warmer temperatures, the difference in heat is almost not felt. There are three-chamber designs and disadvantages. With a large glass thickness, the weight increases, while the reliability of the fastening decreases. Therefore, it is recommended to divide wide openings into several sections in order to install them as reliably as possible. If there is no busy highway or airport outside the window, and the temperature in winter is kept within normal limits, then the installation of a triple glass unit will not justify itself.

Comparison of designs

Single-chamber and double-chamber windows have different technical and design characteristics.

These features should be taken into account when choosing a window unit. In the future, this will allow avoiding many problems, including changing the glass unit.

The thickness of the single-chamber glass unit is 22 mm. Here, the thickness of the glasses themselves is 4 mm, and the cameras are 14 mm. With the help of such structures, it is possible to reduce heat loss by almost half.

The same applies to the protection of the premises from external noise. Two-chamber designs significantly exceed single-chamber designs. But, at the same time, their weight is an order of magnitude higher.

So, double-glazed windows are relatively thick. This is due to the fact that they already consist of three glasses, between which two chambers are formed.

Thanks to this design, the insulating glass unit has high thermal insulation characteristics, which explains their popularity for glazing residential premises.

Of course, the improved specifications cannot be passed without a trace. Since the structure consists of three panes and a 30 mm wide profile, its weight is significantly different from single-chamber windows.

As a result, this leads to some difficulties in the process of installing the window unit.

As you can see, double-glazed windows are better than single-chamber designs. But, if you are not able to buy expensive windows, then you can opt for the second option.

It is worth noting here that the average cost of a two-chamber window is close to $ 200. As for single-chamber units, they cost a quarter less.

There are several ways to improve the heat and sound insulation properties of single-chamber double-glazed windows. First of all, this concerns the use in the production of energy-saving films.

With their help, the thermal insulation properties can be raised to the level of two-chamber structures. As for noise insulation, special tint films are used here.

Of course, the final word will be yours. To make the right choice, it is worth considering all the advantages and disadvantages of the designs.

Also look at the video below for the differences between a single-chamber double-glazed window and a two-chamber one.

Source: mrokna.ru/steklopaketi/kakie-steklopaketyi-luchshe-odnokamernyie-ili-dvuhkamernyie.html

Low-emission glasses

Low emission - the ability to reflect thermal radiation. The lower the emission coefficient, the better the material reflects energy, which means it is the best heat insulator.

In the domestic GOST 24866-2014, the characteristic "Reduced resistance to heat transfer" is used - the inverse of the emission coefficient. The higher the resistance to heat transfer, the better the insulating ability of the glass unit.

There are low-emissivity glasses with hard and soft coatings.

• Low K-glass (hard coated glass) can be used as a coating to the outside as it is weather and abrasion resistant. Can be hardened.
• Low-emission I-glass (glass with a soft coating) is used only as a coating inside the package - it is not resistant to external influences, but has better heat-insulating properties (almost 1.5 times).

The glasses in the glass unit of the window are designated: 4k and 4i, respectively, where 4 is the value of the glass thickness in millimeters.

Soft low-emissivity coating (i-glass) is used more often for the manufacture of heat-saving and energy-saving insulating glass units.

Low emission glass

Low-emission glass (Low Emission) with a special heat-reflective coating works on the principle of a thermos: it isolates from the external environment, keeping the temperature inside.

The coating applied to the glass surface retains its transparency and, unlike films, cannot come off. The coating itself can be applied:

• on the outer glass (inside the chamber) - for better heat reflection outside;
• on the inner glass (inside the chamber) - for better heat reflection into the room.

Video: production of low-emission glass for insulating glass units

Price for a single-chamber or double-glazed window

The choice of a profile for a window structure undoubtedly plays a significant role in the further operation of this system.

However, do not forget that the frame occupies only 20% of the window opening area, the remaining 80% belongs to the glass unit, therefore, when choosing a profile system, you should first of all pay attention to the technical characteristics of this component.

Even 20 years ago, a single-chamber double-glazed unit was installed in most windows. The price of such products is naturally cheaper than a two-chamber analogue.

At present, the overwhelming majority of the population use double-glazed windows when glazing apartments and houses.

The price of this product significantly exceeds the cost of a single-chamber system, but the quality indicators that you get by installing it will allow you to create comfortable living conditions.

The quality characteristics in a wide variety of combinations are greatly influenced by the glass used in the manufacture.

Thus, the price will directly depend on the thickness and filler of the chamber, it is possible to achieve the minimum cost of glazing, but it is advisable to use such windows in industrial premises. Since they are not able to fully perform all the functions of heat and sound insulation of a residential building.

For an apartment, it is important to use two-chamber packages, the price, of course, will be an order of magnitude higher, but the operational data of such a product, even with the installation of ordinary sheet glass, can significantly increase the level of comfort of your stay.

Single chamber package

Again, let's dwell on concepts. One chamber is not one, but two layers of glass, between which there is a special material that absorbs excess moisture. It is this substance that prevents the formation of condensation. Experts call this design “standard single-glazed unit”.

Two glasses of 0.4 cm, plus a gap between them of 1.6 cm, a package with a thickness of 2.4 cm is obtained.There is a configuration of PVC windows of both 1.8 cm and 3.6 cm. The weight of the profile depends on the dimensions ... Thus, a single-chamber glass unit is noticeably lighter than a two-chamber one. What does this mean for the consumer? A light window is more securely fixed in the opening, and more light enters the room through two glasses.

What can be used to pack a double-glazed window?

Glass, like any other building material, has certain technical characteristics, which are reflected in different ways on the functionality and method of application.

However, one of the main differences of this accessory item is its transparency.Unscrupulous manufacturers, using poor knowledge of the consumer issue, install on household glass, which is 20% cheaper than polished glass.

At the same price for a single-chamber double-glazed unit, the degree of its transparency will be significantly lower than you need.

In order to avoid buying a low-quality product, it makes sense to contact a reliable company that specializes in the production and installation of window systems for a long period of time and has a decent amount of positive feedback from grateful customers.

Qualified specialists will advise you on issues of interest, so that you can make the right choice of a window with a double-glazed window, of excellent quality and a price that will completely suit you.

I-glass and multifunctional: which is better, what is the difference?

And - glass

- low-emissivity glass with a high ability to reflect infrared (thermal) radiation.

Multifunctional - glass

- glass that combines two functions. The first is the ability of I-glass to reflect infrared (thermal) radiation. The second is the ability of sun-reflecting glass to reflect the thermal energy of the sun.

Comparison of I-glass (ClimaGuard N) and Multifunctional glass (ClimaGuard Solar)

Output:

multifunctional glass in a double-glazed window makes it not only heat-saving, but also better shades the room, keeps it from heat.

Dependence of the price on the type

Energy saving glass

This type has high quality indicators that allow you to effectively maintain the temperature in the room, without releasing heat outside.

Manufacturers achieve such indicators thanks to high-tech processes used in the manufacture, the basis of which is the application of a thin coating on one of the sides of the glass, almost invisible to the eyes, which increases its reflective characteristics several times.

In addition, such a coating does not interfere with the penetration of light into the room.

The external data of such a window will not differ from the usual one. Installing window constructions with energy-saving glasses in single-chamber packages, the price, of course, will be an order of magnitude higher than with conventional counterparts.

It should also be borne in mind that thanks to this solution, you will not only create comfortable and cozy conditions for yourself and those close to you, but will also be able to reliably protect the wallpaper and furniture from burnout.

In addition, by spending a certain amount on this installation option, you can give your apartment significant energy savings. Buying a double-glazed window in Moscow using this technology means making a profitable investment in your future.

More on the topic How to choose the best fittings for plastic windows

Safe constructions

When destroyed, these types of products completely exclude the possibility of injury to a person. There are currently two options for creating safety glass.

The first of the possible methods of making such a building material is the hardening process. It is worth noting that the price of such a single-chamber double-glazed unit can significantly exceed the cost of the entire window.

At the same time, it has excellent strength indicators and, in the event of destruction, forms small pieces that do not have sharp corners.

The second option for safe production is a high-tech process, gluing together the required number of glass sheets with a polymer film.

This type of material is called triplex. It has a very strong structure and completely eliminates the possibility of the appearance of fragments during destruction.

The use of products of increased strength is advisable for installing a window structure in places with a significant risk of unauthorized entry or an increased level of mechanical operation.

Tinted glass

This type of glass is designed to protect the room from the penetration of sunlight. It is produced using innovative technologies, due to which it acquires high quality indicators, among which reflectivity can be noted.

Thus, ultraviolet rays penetrate into the apartment in much smaller quantities.

Toning restricts the flow of solar heat into the room to 70% and does not heat up at the same time. It is advisable to use this glazing option in rooms with windows facing the south side of the house.

Equipping such products with double-glazed windows, the price will not be too high, since only one side of the window will be tinted. This solution is not only a profitable, stylish solution for apartment design.

Such windows will make the facade unique and expressive, making your apartment stand out from the crowd.

Source: royal-comfort.ru/odnokamernyy-i-dvuhkamernyy-steklopaket

More on the topic How to properly tint a balcony and a loggia with a mirror film

Potential for condensation in winter

Single-chamber structures are intended only for unheated rooms (balconies, for example), since they cannot provide reliable thermal insulation. In winter, the temperature in the house is much higher than outside - hence the condensation. And in severe frosts, for the same reason, the glass can be covered with frost and ice. The exception is energy-saving double-glazed windows.

There may be several reasons for the appearance of condensation after installing double glazing:

• lack of ventilation - moisture simply has nowhere to go (a common problem of frame houses);
• high humidity in the room (in the kitchen, for example, when there are several pots on the stove turned on);
• improper installation - violation of the sealing of the joints, installation of double-glazed windows too close to the outer wall;
• cold bridges - insufficient wall insulation or, again, a violation of the installation technology, in winter frost can form on the windows on the inside;
• water on the inside of the glass is a sure sign of a manufacturing defect;
• a large temperature difference between the street and the house (in cold weather, a slight fogging of the windows in the apartment is the norm).

Glass fogging can be caused by indoor plants, if there are a lot of them (boxes with seedlings on the windowsill, for example). Constant watering, spraying is a change in the microclimate in the room, an increase in the level of humidity.

Another reason is incorrect calculations during installation. For example, the edge of the frame should be the base of the frame at least 12 cm from the edge of the wall. If the technology is violated (many use this technique to expand the window sill), it is possible not only for condensation to fall out, but also the formation of frost or ice.

It is rather difficult to determine the cause on your own. Some recommend bringing a burning match to the frame, if the flame begins to fluctuate or goes out, it means that a so-called cold bridge has formed - the sealing is broken.

If the house has a forced ventilation system, the installation was carried out in accordance with the requirements of GOST, the workers did not save on consumables (sealant, polyurethane foam), there should be no condensation.

Double-glazed windows - single-chamber, double-chamber, energy-saving

Single-chamber double-glazed window

• 4 or 6 mm glass is used;
• Glass unit width: from 12 mm to 44 mm;
• Heat transfer resistance coefficient: 0.34 m2oС / W;
• Noise reduction level: 32 dB;
• The price of a single-chamber double-glazed unit is approximately 40% lower than that of a two-chamber glass unit;
• Due to the low weight of the glass unit, the load on the fittings is reduced, which increases its service life;
• Single-chamber double-glazed windows are inferior to two-chamber ones in terms of heat and sound insulation;
• There is a risk of condensation formation at outdoor temperatures below -8 ° C.

We recommend using single-chamber double-glazed windows for glazing: balconies and loggias, rooms with a large area, good heating and ventilation, summer country houses, non-residential premises.

Based on the practice of installing plastic windows, our company does not recommend using single-chamber double-glazed windows in the following types of premises: educational and medical institutions, rooms with high humidity and poor ventilation (for example, a kitchen), rooms with windows overlooking a noisy roadway, rooms with poor heating.

If you have already installed plastic windows with a single-chamber double-glazed window in your apartment, they can always be replaced with a two-chamber double-glazed window.

Only the double-glazed window is changed, all other window elements do not require dismantling or replacement. If the double-glazed unit is wider than the single-chamber unit, the glazing bead also changes.

Double-glazed window

• 4 or 6 mm glass is used;
• Glass unit width: from 24 mm to 48 mm;
• Three glasses, two air chambers; Heat transfer resistance coefficient: 0.55 m2oС / W;
• Noise reduction level: 38 dB.

Technical characteristics correspond to the established requirements for the average climatic zone, therefore, double-glazed windows can be used in all types of premises

The weight of a double-glazed unit is much more than that of a single-chamber unit, which is especially critical for large-sized metal-plastic windows.

Our company recommends the use of double-glazed windows in all types of living quarters.

We do not recommend using double-glazed windows when glazing balconies and loggias, as well as if the dimensions of plastic windows and sashes significantly exceed standard ones. In these cases, it is worth paying attention to a single-chamber double-glazed unit with energy saving.

As a rule, double-glazed windows are made according to the formula 4-10-4-10-4 (glass - air chamber - glass - air chamber - glass), but in order to achieve higher heat and sound insulation properties, double-glazed windows can be made according to the formulas: 4 -8-4-10-12-4, 4-16-4-16-4, etc.

More on the topic Cold glazing balcony

Glass unit with energy-saving spraying and argon

• Energy-saving spraying can be used both in a single-chamber and in a double-chamber glass unit;
• Instead of air, the inert gas argon is used in the chambers;
• A single-chamber double-glazed unit with energy-saving thermal insulation is similar to a two-chamber one;
• Coefficient of resistance to heat transfer for a single-chamber glass unit: 0.56 m2oС / W;
• The level of noise reduction for a single-chamber double-glazed window: 32 dB;
• The price of an energy-saving glass unit is slightly higher than usual (about 5%).

In energy-saving double-glazed windows, instead of air, an inert gas argon is pumped into the chambers, the thermal conductivity of which is lower than that of air.

A thin layer of silver ions is applied to the inner side of one of the glasses. Due to this, solar energy freely penetrates into the room, and the heat of the room (up to 50%) is reflected from the glass unit. Externally, energy-saving double-glazed windows do not differ in any way from ordinary ones.

Double-glazed window unit with increased noise insulation

• 4 or 6 mm glass is used;
• Glass unit width: from 32 mm to 48 mm;
• Three glasses, two air chambers;
• A combination of glass and air chambers of various thicknesses is used in noise-insulating glass units. Due to this, the sound insulation of the glass unit is significantly increased;
• The most common formula for a noise-insulating glass unit is 6-12-4-14-4;
• Heat transfer resistance coefficient: 0.55 m2oС / W;
• Noise reduction level from: 42 dB;
• The price of an insulating glass unit is about 20% higher.

If your windows face a noisy roadway, it makes sense to think about purchasing metal-plastic windows with sound-insulating glass units.

The difference in sound insulation between ordinary single-chamber and two-chamber windows is small, but if one of the glasses is displaced from the center in a two-chamber double-glazed window, then the sound insulation increases significantly.

For even higher noise insulation, one of the 6 mm wide glass panes can be installed.

Source: oknapvhspb.ru/steklopaketi.php

Soundproofing

For sound insulation, according to laboratory tests, structures in the manufacture of which use thick sheet glass or laminated glass are suitable.

The characteristic of sound insulation of double-glazed windows is calculated

44.1 - two glasses of 4 mm with a PVB film between the glasses.66.1 - two glasses 6 mm with PVB film between glasses
As you can see, 8 mm glass better insulates against noise (32 dB) than a single-chamber glass unit 4M1-16-4M1 (30 dB).

Read more: Double-glazed windows, the best in terms of sound insulation

Which glass unit to install: 2 or 3 glasses?

Definitely, a double-glazed unit with three panes (or, correctly, it is called a double-glazed unit) is warmer than a single-pane unit with two panes.

In addition to the fact that a double-glazed unit is of the order of 30-40% warmer than a single-chamber unit, it has better sound insulation and better resistance to fogging, since the inner glass is separated from the cold street zone by an additional chamber.

There are only two minor disadvantages of a double-glazed unit:

1. Weight. The construction of the window in this case is heavier (but good fittings are designed to hold such double-glazed windows with a large margin, and one should not be afraid to install them in all cases).
2. Price. Double-glazed windows are more expensive. But is it worth saving about 500 rubles for one window to get almost twice the colder window?

An ordinary single-chamber double-glazed unit is designed for operation up to temperatures of the order of -20 degrees, while a two-chamber double-glazed unit is designed to operate at temperatures of -35 and below.

Therefore, if you want to have comfortable conditions at home all winter, choose double-glazed windows. At the same time, we recommend that you choose double-glazed windows with energy-saving glass (the increase in the price will be insignificant).

We often hear from our customers that the neighbors have installed a single-chamber double-glazed window and the windows do not sweat. Be careful with this opinion.

1. Firstly: neighbors cannot always tell the truth - who wants to admit that they made a mistake with their choice.
2. Secondly, the absence of fogging of windows is only an indirect sign by which you can assess the indoor climate, the quality of installation, but you cannot assess how much the windows retain heat in the room (especially if you heat it out of your pocket).
3. Thirdly, the cost of one and two-chamber double-glazed windows differs only by 500 rubles per window - you must admit that this is not the kind of money, because of which you can deny yourself the comfort and confidence in your windows.

For more information about what other double-glazed windows are (for example, sun-protection), see the article "energy-saving windows: regular price", as well as a short description of what a "double-glazed window" is

Also, we are often asked how to determine how many glasses are in an already installed glass unit? The fact is that due to optical refraction, the middle glass is not visible.

The answer is very simple - just bring a lighter and count the number of reflections - there will be 6 if the glass unit is three glasses, since each glass surface reflects.

Source: narodnye-okna.ru/main/Chastye_Voprosy_i_Otvety.aspx?q=127

How to determine the number of cameras?

So, you have installed the plastic profile. The manager assured you that your apartment now has a good double-glazed window. And now you come to the window, and what do you see? Two glasses. The thought immediately comes that you have been deceived. Don't jump to conclusions. We will show you how to distinguish a window with one or two cameras.

To do this, you need to perform a simple action. Light a match or lighter at a distance of a couple of centimeters from the glass unit. In the window, you will see the reflection of the lights. Count how many there are. If there are two, then you have a cheap single-chamber version, if three, then a two-chamber one. Each glass reflects a light, respectively, 2 lights are 2 glasses in a single-chamber design, and 3 lights are 3 glasses in a two-chamber design.

This method will allow even a layman to tell the difference. And you can easily determine which window is in front of you.

Not sure which double-glazed windows to choose? Our company is always happy to provide expert advice on the difference between models with one or two cameras. has been producing and installing PVC profiles for a long time. We use high quality materials, and all work is done by experienced craftsmen. As a result, no matter what choice you make, you will certainly be satisfied with the result of our cooperation. Call now!

Spacers in a double-glazed window

The dividing glass frames in a double-glazed window perform several functions at the same time:

• form a heat-insulating air chamber,
• silica gel filled in frames dries the air inside the chamber,
• decorative - one of several colors can be selected.

Spacers differ in type and material from which they are made. The most common: plastic, aluminum, combined (TGI).

The material, for example aluminum, used in the production of the frame is a good heat conductor. Plastic, on the other hand, is a heat insulator. Depending on the glass unit ordered for production, or rather the type of frame, a cold bridge and fogging may occur (or not). Spacers for double-glazed windows and their properties