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

Greetings to all readers!
A client came to see me the other day. I wanted to change the windows in my apartment. I read various articles on the Internet and sat on forums. And she came with a question, which double-glazed window is better for her - single-chamber or double-chamber? And in general, how do they differ and what are their pros and cons compared to each other?

I gave her a lecture on the types of double-glazed windows. And then I decided to post all this information on my blog in the form of an article so that everything would be structured. In general, this is how the article turned out. Read it, maybe it will be useful to you too.

Double-chamber or single-chamber double-glazed windows

A double-glazed window is a translucent glass structure. Occupies most of the window area. Lets sunlight into the room, prevents heat loss, and reduces the noise level in the home.

When replacing wooden windows with plastic ones, consumers inevitably face the question of whether to choose single-chamber or double-chamber windows. To make the right choice, you need to understand what the difference is between them, determine the advantages and disadvantages of each of them.

Glazing thickness

For the manufacture of translucent window structures, translucent elements of various thicknesses are used (the minimum allowable is 4 mm).

Glazing thickness

For comparison:

The table shows that the difference in the performance of 6 and 8 mm glass is the same, while the weight of the latter is much higher. And the heavier the structure, the faster the fittings wear out, and repair work is not free.

Differences between single-chamber and double-glazed windows

Single-chamber consists of 2 glasses separated from each other by one aluminum spacer frame, hollow inside and filled with a special absorbent.
Dried air is pumped into the space between the glasses, and 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 double-glazed window has excellent heat-insulating properties. To ensure the package is sealed, 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 design. The two-chamber package uses three glasses separated by two spacer frames. 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 single-chamber double-glazed windows:

• lighter weight, does not create additional load on fasteners and fittings, so windows do not fail longer;
• a single-chamber insulation package, which uses energy-saving glass, retains heat no worse than a two-chamber unit;
• transmits more light (up to 80%);
• has a lower cost

Flaws:

• low coefficient of resistance to heat transfer, as a result of which condensation forms on the glass at a temperature of - 8 ° C; lower noise insulation, reduces noise level by 32 dB; heat transfer resistance 0.34 m² °C / 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
Double-chamber double-glazed windows have the following advantages:

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

Minuses:

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

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

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

The disadvantages of double-glazed windows regarding thickness and weight are easily offset by the use of high-tech reinforced window profiles and high-quality fittings. And the higher price in the coming years of operation is paid off by lower costs for electrical and thermal energy for space heating.

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 preserving heat in the autumn-winter period is not paramount.

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

Modern double glazed windows

They retain heat well, protect from noise, and do not require special care. You can choose any frame - PVC or wood frames.

Depending on the type and purpose of the structure, the following types of glass are used for manufacturing:

1. Regular, sheet - grade M1 (thickness 3-4 mm).
2. Triplex – multilayer, with a polymer film. When subjected to mechanical impact (impact, for example), fragments remain on a polymer base. Another advantage is that in case of minor damage it does not require urgent replacement and retains its functions.
3. Armored - will remain intact even after being fired from a firearm; it is rarely used in private housing construction (mainly in banks, government agencies).
4. Hardened - subjected to heat treatment (heating to a hardening temperature of 680 degrees) followed by rapid cooling. When broken, it breaks into small fragments (not exceeding 3 cm2 in size in accordance with GOST requirements) with blunted edges - it is impossible to cut, therefore it is often used for external and internal glazing of children's rooms.
5. Low-emission - with a metallized layer applied to the surface, reflecting part of the infrared radiation (from heating devices, batteries) back into the room. It transmits light worse, but has excellent energy-saving characteristics.
6. Sun protection ones “work” the same way as energy-saving ones, only they reflect ultraviolet radiation. In the summer heat, the apartment will maintain a comfortable temperature.
7. Self-cleaning - a godsend for the lazy. Often used for roof windows installed in the roof. It's all about the thin titanium coating applied to the surface. When exposed to ultraviolet light, a chemical reaction occurs that dissolves dirt. Remaining dust is washed away by rain. The coating does not affect the performance properties in any way and does not require special care.
8. Dyed in the mass - oxides of various metals are used in production. The result is a mirror effect. Colors – blue, green, gold. The only drawback is that the surface gets very hot and retains up to 85% of natural light. Yes, from the street you won’t be able to see what’s happening in the room, but the apartment will be in constant twilight.

Another way to darken the glass surface is tinting using polymer films.

One of the advantages is that you can refuse curtains completely (especially important for apartments on the first floors). Among the disadvantages are heating of the surface (over time it can lead to destruction of the panel), low resistance to mechanical stress - you will have to either remove the film manually or completely replace the panel. Plus, distortion of natural light can cause discomfort over time.

Replacement of glass unit

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

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

If the width of the profile is smaller than the width of the glass block, the latter simply will not fit into the profile; if it is smaller, a special bead is used that reliably fixes the block in the profile.

To replace a double-glazed window you must:

• dismantle the old clamping strips, seals and the double-glazed window itself;
• install pads 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 one takes no more than 10-15 minutes from an experienced technician. 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/

How do double-glazed windows differ in price?

Thrifty buyers immediately ask about the cost, however, the difference in the price range of single and double windows is not too big. Approximately, an additional camera will cost the customer only a quarter of the amount more. But when buying a triple package, cost can become a decisive factor, because a three-chamber design costs twice as much as a double window. Here, it is not so much the cost of glass that is playing up, but rather the cost of the profile itself; it must be reliable and firmly fix the package.

Which double-glazed windows retain heat in the house better 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 containing double-glazed windows have been actively used in construction.

As a rule, single-chamber and double-chamber are used. Single-chamber double-glazed windows are a sealed structure of two glasses.

Between the glass, along the edge of the glass unit, there is a thin-walled aluminum frame (distance frame) with perforation, filled with special granules that absorb residual humidity from the air inside and protect the glass from fogging.

The glass unit is sealed around the entire perimeter with a special plastic mastic. Neither moisture nor 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, for example, argon.

Double-chamber ones have one more glass, a spacer frame and, accordingly, a second insulated chamber. Otherwise, the design of double-chamber 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 the heat and sound insulation properties, traditional double-glazed windows with ordinary glass cannot always provide the heat saving indicators required by regulatory documents.

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

Their use has become expedient both from the point of view of energy efficiency and to reduce the total weight of the façade 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 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 double-chamber double-glazed windows with a width of at least 48 mm and incorporating energy-saving glass is justified.

Unfortunately, energy-efficient glass does not affect the sound insulation properties of double-glazed windows.

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

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

Double glazing – how many glasses is there?

The confusion in concepts is most likely due to old wooden windows (a double window is just 2 glasses). Double-glazed windows take into account the number of air chambers. Accordingly, double means 3 glasses and 2 cameras.

In general, manufacturers' statements regarding the characteristics of double-glazed windows often mislead potential buyers. For example, there are no five-chamber double-glazed windows. In this case we are talking about a profile.

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

When choosing modern plastic windows, people often have a question about which double-glazed window is better to choose.
A double-glazed window 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 glass.

Among all the possible options, people often think about single-chamber and double-glazed windows. What interests them most is the difference between products and which one is more effective and acceptable for a particular region.

Advantages and disadvantages of single-chamber double-glazed windows

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

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

As for the advantages, they include:

• light weight of the structure, which reduces the load on the fittings. As a result, the service life of the window is significantly increased;
• possibility of using energy-saving glass. The design with such glass 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 structures

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 inert gas.

The advantages of double-glazed windows 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 structures, experts highlight:

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

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

Possibility of 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 may become 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 glazed windows:

• lack of ventilation - moisture simply has nowhere to go (a common problem with frame houses);
• high humidity in the room (in the kitchen, for example, when there are several pots on the stove);
• improper installation - failure to seal joints, installation of double-glazed windows too close to the outer wall;
• cold bridges - insufficient wall insulation or, again, a violation of 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;
• there is a big difference in temperatures outside and in the house (in cold weather, a little fogging of the windows in the apartment is the norm).

Fogging of glass can be caused by indoor plants if there are a lot of them (boxes with seedlings on the windowsill, for example). Constant watering and spraying change the indoor microclimate and increase the humidity level.

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

Determining the cause on your own is quite difficult. 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 seal has been broken.

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

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 avoid many problems, including changing the double-glazed window.

The thickness of a single-chamber double-glazed window is 22 mm. Here the thickness of the glass itself is 4 mm, and the thickness of the camera is 14 mm. With the help of such structures, heat loss can be reduced by almost half.

The same applies to protecting the premises from external noise. Double-chamber designs are significantly superior to single-chamber ones. But, at the same time, their weight is an order of magnitude higher.

So, double-glazed windows have a relatively large thickness. This is explained by the fact that they already consist of three glasses, between which two chambers are formed.

Thanks to this design, double-glazed windows have high thermal insulation characteristics, which explains their popularity for glazing residential premises.

Of course, improved technical characteristics cannot be carried out without leaving a trace. Since the design consists of three glasses and a 30 mm wide profile, its weight is significantly different from single-chamber windows.

As a result, this leads to some difficulties during the installation of the window unit.

As you can see, double-chamber double-glazed windows are better than single-chamber structures. 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 blocks, they cost a quarter less.

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

With their help, the thermal insulation properties can be raised to the level of two-chamber structures. As for sound insulation, special tinting 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 see in the video below the differences between a single-chamber double-glazed window and a double-chamber one.

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

Pros and cons of a double package

The “double-chamber” design is more reliable and durable than the “single-chamber” design. In terms of noise suppression and heat retention, they are superior to their single-chamber counterparts, so their use is practically unlimited.

Three glass layers and two chambers, while the thickness of the double-glazed window is not much more than a single one. The noise and heat insulation characteristics are high. The cost of such a PVC product is 25-30% more than the price of a single-chamber package. It is the profitability of the offer that makes this window standard the most popular among the population. We will not repeat ourselves regarding the features of installation and fastening of metal-plastic products; they are outlined above. However, we would like to remind you that the installation of both structures will require care and precision. We advise you to involve professional craftsmen to perform this procedure, because the slightest distortion can result in drafts and loss of tightness.

Price for single-chamber or double-glazed windows

The choice of 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 double-glazed window, therefore, when choosing a profile system, you should first of all pay attention to the technical characteristics of this component.

Just 20 years ago, single-pane glass was installed in most windows. The price of such products is naturally cheaper than a two-chamber analogue.

Currently, the vast majority of the population uses double-glazed windows when glazing apartments and houses.

The price of this product is significantly higher than the cost of a single-chamber system, but the quality indicators that you will receive 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 filling of the chamber; the minimum cost of glazing can be achieved, but such windows are advisable to use 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 performance data of such a product, even with the installation of ordinary sheet glass, can significantly increase the level of comfort of your stay.

Practical advice on choosing double-glazed windows

In addition to the characteristics and recommendations described above, the following tips will help you choose high-quality double-glazed windows for your apartment or house:

• The presence of a desiccant or molecular sieve in the glass unit design ensures rapid absorption of moisture formed on the glass. Different types of dryers are used for different types of gases;
• Also, the problem of water vapor condensation on glass can be solved by “warm” inter-chamber frames. They are able to maintain the required temperature at the edges of the glass, minimizing the risk of thermal bridges;
• If you want to increase the distance between the glasses, then you should stop at a width of up to 2.4 centimeters. Practice shows that a large width in this case will lead to a deterioration in the thermal insulation properties of the glass unit;
• A space filled with argon will not give the expected effect if the outer glass of the double-glazed window is not energy-saving;
• You can check whether argon is actually pumped into the chamber by simply paying attention. Such a double-glazed window must have a valve through which this gas is pumped;
• To distinguish energy-saving glass from regular glass, you can conduct a simple experiment with a lighter or match. The light must be brought to the glass and the image seen must be checked: the flames should be reflected in the same way as in the mirror, but one of them should have a pronounced red or pinkish tint. This indicates that this glass is energy-saving;
• Single-glazed windows with glass of different thicknesses will also have some sound insulation properties. It’s even better if one of the glasses is energy-saving.

How can you pack a double-glazed window?

Glass, like any other building material, has certain technical characteristics, which have different effects on functionality and method of application.

However, one of the main differences between this component 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 window, its degree of transparency will be significantly lower than you need.

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

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

Single chamber package

Again, let's focus 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 occurrence of condensation. Experts call this design a “standard single-glazed window.”

Two glasses of 0.4 cm each, plus a gap between them of 1.6 cm, you get a package 2.4 cm thick. There is a configuration of PVC windows in both 1.8 cm and 3.6 cm. The weight of the profile depends on the dimensions . Thus, a single-chamber double-glazed window is noticeably lighter than a double-chamber one. What does this mean for the consumer? A lightweight window is more securely fixed in the opening, and through two glasses more light penetrates into the room.

Dependence of price on 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 manufacturing, the basis of which is the application of a thin, almost invisible coating to one side of the glass, which increases its reflective characteristics several times.

In addition, such a coating does not prevent the penetration of light into the room at all.

The external data of such a window will not be any different from the usual one. When installing window structures with energy-saving glass in single-chamber packages, the price, of course, will be an order of magnitude higher than with conventional analogues.

It should also be taken into account 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 wallpaper and furniture from fading.

In addition, by spending a certain amount on this installation option, you can give your apartment significant savings on energy resources. 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 designs

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

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

At the same time, it has excellent strength characteristics and, in case 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 sheets of glass with a polymer film.

This type of material is called triplex. It has a very strong structure and completely eliminates the possibility of fragments appearing when destroyed.

The use of high-strength products is advisable for installing window structures 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, thanks to which it acquires high-quality indicators, among which reflective abilities can be noted. Thus, ultraviolet rays penetrate into the apartment in much smaller quantities.

Tinting limits solar heat gain 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.

By equipping double-glazed windows with such products, 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, highlighting your apartment in the crowd.

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

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

Which double-glazed windows are best to install?

Determine the requirements for thermal insulation and sound protection. For maximum silence and comfort in the bedroom, it is better to install windows with multifunctional glass. On the loggia, lighter weight and cheaper packages without options are acceptable. If it is important for you that the room is not visible from the outside, you can order tinted double-glazed windows for your balcony.

For residential premises, we recommend purchasing two-chamber glass packages:

• the risk of condensation is minimal,
• freezing in winter is excluded,
• you can combine tinting, heating, burglary protection,
• high sound insulation.

Separate mention should be made about triplex glass. It is indispensable if the apartment is on the first two floors or the cottage is glazed. Triplex significantly increases the protection of an object from intruders and does not cause injury if broken. Let's consider its features.

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

Single-chamber double-glazed window

• 4 or 6 mm glass is used;
• Double-glazed window width: from 12 mm to 44 mm;
• Heat transfer resistance coefficient: 0.34 m2oC/W;
• Noise reduction level: 32 dB;
• The price of a single-chamber double-glazed window is approximately 40% lower than that of a double-chamber one;
• 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 double-chamber ones in terms of heat and sound insulation;
• There is a risk of condensation forming at street temperatures less than -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 facing a noisy roadway, rooms with poor heating.

If you already have metal-plastic windows with single-chamber double-glazed windows installed in your apartment, you can always replace them with double-glazed windows.

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

Double-glazed window

• 4 or 6 mm glass is used;
• Double-glazed window width: from 24 mm to 48 mm;
• Three glasses, two air chambers; Heat transfer resistance coefficient: 0.55 m2oC/W;
• Noise reduction level: 38 dB.

The technical characteristics meet the established requirements for the average climate zone, so double-glazed windows can be used in all types of premises

The weight of a double-chamber double-glazed window is significantly greater than that of a single-chamber one, which is especially critical for large metal-plastic windows.

Our company recommends using double-glazed windows in all types of residential premises.

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

As a rule, double-chamber double-glazed windows are made according to the formula 4-10-4-10-4 (glass - air chamber - glass - air chamber - glass), but to achieve higher heat and noise 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 of a balcony

Double-glazed window with energy-saving coating and argon

• Energy-saving spraying can be used in both single-chamber and double-glazed windows;
• Instead of air, the chambers use the inert gas argon;
• A single-chamber double-glazed window with energy-saving thermal insulation is similar to a double-chamber one;
• Heat transfer resistance coefficient for a single-chamber double-glazed window: 0.56 m2oC/W;
• Noise reduction level for single-chamber double-glazed windows: 32 dB;
• The price of energy-saving double-glazed windows is slightly higher than usual (about 5%).

In energy-saving double-glazed windows, instead of air, the 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 inside 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 double-glazed window. Externally, energy-saving double-glazed windows do not differ in any way from ordinary ones.

Double-glazed window with increased sound insulation

• 4 or 6 mm glass is used;
• Double-glazed window width: from 32 mm to 48 mm;
• Three glasses, two air chambers;
• Soundproofing double glazed windows use a combination of glass and air chambers of varying thicknesses. Due to this, the sound insulation of the double-glazed window is significantly increased;
• The most common formula for soundproofing double-glazed windows is 6-12-4-14-4;
• Heat transfer resistance coefficient: 0.55 m2oC/W;
• Noise reduction level from: 42 dB;
• The price of soundproofing double glazed windows is approximately 20% higher.

If your windows face a noisy roadway, it makes sense to think about purchasing metal-plastic windows with sound-proof double-glazed windows.

The difference in sound insulation between conventional single-chamber and double-chamber windows is small, but if in a double-glazed unit one of the glasses is moved from the center, the sound insulation increases significantly.

For even higher sound insulation, you can install one of the 6 mm wide glasses.

Source: oknapvhspb.ru/steklopaketi.php

Double-glazed window weight

As a rule, this information is needed if you are choosing between single or double glazing for installation on a balcony or loggia (especially in old houses). You can calculate the approximate weight of the structure yourself.

Take, for example, the option with simple sheet glass, often used to improve sound insulation characteristics:

• 2 glasses of 4 mm, 1 – 6 mm (specific weight 1mm/1m2 – 2.5 kg);
• 1–6 mm;
• design dimensions – 1.4m x 1.8m

Using simple calculations: we multiply all the indicators for four-millimeter glasses (2x4x1.8x1.4x2.5), add the value for six-millimeter glass (6x1.4x1.8x2.5), we get the result - 88.3 kg. And this does not take into account the weight of the plastic frame and fittings. When ordering windows with heat-insulating or sound-absorbing properties, the weight will be even greater.

Single-chamber, 1.4 m x 1.8 m in size, together with frame and fittings, weighs about 38 kg (using three-millimeter glass). If the glass thickness increases to 4 mm, the weight of the structure will be about 55 kg.

Which double-glazed window should I install: 2 or 3 glasses?

Definitely, a double-glazed window with three glasses (or correctly called a two-chamber double-glazed window) is warmer than a single-chamber with two glasses.

In addition to the fact that a double-chamber double-glazed window is 30-40% warmer than a single-chamber one, 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 to double-glazed windows:

1. Weight. The structure of the window in this case is heavier (but good fittings are designed to hold such double-glazed windows with a large margin, and there is no need to be afraid to install them in all cases).
2. Price. Double-glazed windows are more expensive. But is it worth saving about 500 rubles on one window to get an almost twice as cold window?

An ordinary single-chamber double-glazed window is designed for operation up to temperatures of about -20 degrees, while a double-chamber double-glazed window 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 price will be insignificant).

We often hear from our customers that the neighbors installed single-chamber double-glazed windows 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 evaluate the climate in the room, the quality of installation, but you cannot estimate how much the windows retain heat in the room (especially if you heat it from your pocket).
3. Thirdly, the cost of single-chamber and double-glazed windows differs only by 500 rubles per window - you must agree - this is not the money for which you can deny yourself the comfort and confidence of your windows.

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

We are also often asked how to determine how many glasses are in an already installed double-glazed window? The fact is that due to optical refraction, the middle glass is not visible.

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

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

What is double glazing

This is a sealed structure (chamber) consisting of several glasses that are connected to each other by a spacer frame (profile). The frame simultaneously serves as the primary frame, and, thanks to the filling with a special desiccant, “takes” moisture from the chamber.

The profile can be steel, aluminum or PVC with a polymer coating. The latter are characterized by low thermal conductivity and resistance to sudden temperature changes. The frame is made of steel - it retains heat, does not deform, and does not damage the glass during sudden temperature fluctuations (the profile does not behave when heated, unlike more flexible aluminum).

Dry air or inert gas or vacuum are used to fill the chamber. Vacuum technology is expensive and rarely used. The bottom line is that the distance between the reflective elements is less than 1 mm, and to prevent them from “sticking together” (connection), special metal (ceramic) spacers are used.

Definition of the concept of 2-chamber profile

This is the name of a frame with two spatial compartments - chambers . The profile is installed directly into the window opening. The number of chambers determines how much the structure can retain heat. In the cross-section of the device, you can see the partitions separating the air space.

The two-chamber PVC product has two compartments, qualitatively isolated from each other by internal ribs. This allows you to maintain the temperature inside each chamber regardless of the neighboring one.

Design Features

The basis on which the profile is formed is a central large chamber . Inside this compartment there is a reinforcing steel rod. It serves as protection for the frame from deformation and gives the structure the necessary rigidity. Due to the fact that steel conducts heat, the central compartment is insulated with side chambers.

In a two-chamber design, there is only one and is located on the outside of the window. The walls are made from a molten mixture (polyvinyl chloride + modifiers + stabilizers) by pressing. Additional elements give the base material new characteristics.

Reinforcement can be of three types:

1. L-shaped . With this arrangement, the steel insert is installed along two parallel walls.
2. U-shaped . In this case, three walls are strengthened.
3. Closed . This option involves placing the frame along four walls.

The choice of reinforcement type also depends on the size of the window. The smaller the product, the easier it is to install the reinforcement.

Another parameter is the profile class. It can be determined by the thickness of the walls and the width of the profile depends on it. The thicker the product, the higher the class:

• A - assigned to a product with a thickness of outer walls of 2.8 mm and above, internal walls of 2.5 mm and above.
• B - belongs to windows with a thickness of external walls of 2.5 mm and above, internal walls - from 2.0 mm and above.
• C - has no standardized thickness values.

The next important element is the seal. It is best when the profile is equipped with two layers of sealing. This is good protection against condensation.

Filling the chamber with argon, is it safe and what are the advantages?

Many manufacturers, in order to improve the performance characteristics of double-glazed windows, use inert gases instead of dry air in the chambers. Argon, which has a higher mass and density, is often used as such an insulating filler, which has a positive effect on the insulating qualities of the substance. A dense gas environment reduces the rate of heat transfer and more effectively protects the window from external temperature changes.

Argon is one of the components of ordinary air, which makes it completely safe for human health and life. Such double-glazed windows can be safely installed in children's rooms, schools, kindergartens, medical institutions, and in premises where older people live.

Important! Argon is non-explosive, non-flammable, non-toxic, does not have a negative effect on people with asthma and allergies, is transparent, and does not reduce the quality of light transmission. Well protects against ultraviolet radiation.

To increase thermal insulation, inert gas is used in combination with low-emissivity glass. If all technology requirements and state standards are met, argon should be stored in the chamber for up to 25 years. The filling of the glass unit with gas is controlled by specialized equipment.

Varieties

Double glazing is available in the following variations:

• standard, also known as simple classic with PVC or aluminum spacers;
• energy-saving designs filled with argon;
• multifunctional;
• with tempered glass;
• noise-proof, with increased sound insulation due to increased glass thickness;
• environmental, with self-cleaning glass;
• ultra-warm, silver-plated;
• impact-resistant, with triplex;
• with reinforced, tinted, sandblasted glass.

You can also order double-glazed windows with frames, reinforcing film, or complex configurations.

Features of choice

When choosing a double-chamber plastic window, you must remember that each type of installed double-glazed window has its own designation, which includes the width of the glass and the inter-glass space (chambers).

An example of a common formula for a double-glazed window:

• 4M1-10-4M1-10-4M1

Decoding the glass unit formula:

4—thickness of the glass used, in mm. M1 - brand of glass used. The use of glass of smaller thickness for double-glazed windows is not recommended by GOST. The M1 quality mark is a guarantee that the window will have the least amount of optical distortion, bubbles and other defects.

10 — width of the spacer frame, in mm

32 - total width of the glass unit, in mm

Knowing “what goes with what,” any such formula can easily be deciphered independently. The above example suggests that a double-glazed window contains: three glasses, each 4 mm wide, which form two chambers, each 10 mm wide. M1 – brand of glass.

Selection rules

When choosing a double-glazed window, it is important to consider the following factors:

• manufacturer's reputation;
• quality of consumables;
• chamber filling;
• climatic conditions of the region of residence;
• number of floors of the house;
• temperature regime of the glass unit;
• noise level of the area;
• quantity and quality of heating sources.

For warm regions and apartments located below the 16th floor with central heating in a quiet area, cheaper single-chamber options are also suitable. In other cases, it is better not to save money and purchase a reliable design that will protect from frost, strong wind, moisture and extraneous noise from the outside.

Variety of glass decor

Most double-glazed windows are a regular plane without excessive decoration. But other options can also be used, for example, glass with sprockets - decorative metal profiles installed inside the double-glazed window. The profile width ranges from 8 to 26 mm. The color of the sprockets is silver, gold, bronze. They have a rather decorative appearance, but recently they have hardly been used.

In addition to spross, false linings are used - decorative elements of various configurations that are attached to the glass. They do not have any effect on the strength and tightness of the double-glazed window, but allow you to adapt any window to the features of the building’s exterior.

There can be many options for manufacturing double-glazed windows. If there is a choice, then professional builders should be involved - windows are not purchased every year, and they cost a lot. The comfort of housing and a healthy atmosphere in the house depend on their quality.

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Where is single glazing used?

It is recommended to install windows with a standard model of the basic configuration in regions with a winter temperature of at least -5.0 degrees. They are mainly used for glazing:

• Balconies and loggias. Such a system is sufficient to protect against wind, dust and precipitation, and if the space is used as a living room, then a more effective solution will be needed. Due to the low weight, a high load is not created on the load-bearing elements.
• Balcony block. If the balcony is glazed, then double-glazed glazing is enough to separate it from the living room.
• Summer kitchen, dacha. As a rule, such buildings are used in the summer, so it is not advisable to install massive expensive systems.
• Non-residential premises. This could be a warehouse, storage room or technical room without heating.

The difference between double-glazed windows depending on the gas used to fill the chamber

The main properties of a double-glazed window - thermal permeability and sound insulation - largely depend on the gas that is pumped into the chambers. Light transmittance practically does not depend on this - the main role here is played by the characteristics of the glass itself.

Dry air is pumped into ordinary budget-level double-glazed windows; it has fairly low thermal conductivity, high transparency, and its chemical composition does not differ from atmospheric air. More expensive double-glazed windows use argon, krypton or xenon - inert gases that are completely harmless to humans. There is no need to fear that if the sealing layer is damaged, these gases will penetrate into the room. Even if this happens, they do not pose any danger.

The price of such double-glazed windows differs somewhat; it depends not so much on consumer properties as on the cost of gas. The cheapest is argon, the most expensive is xenon. Inert gases exhibit their main qualities when used in double-glazed windows equipped with energy-saving glasses (i or K). But even with ordinary glass, some indicators improve, although the changes are not so pronounced.

Useful qualities of inert gases:

• reduction in thermal conductivity coefficient;
• reducing the risk of condensation;
• protection of internal i-spraying from oxidation.

But despite the obvious advantages, double-glazed windows filled with inert gases are not without disadvantages. The main one is that the gas must be pumped under pressure above atmospheric pressure. This requires increased strength of the sealing layer at the end of the glass unit. The high penetrating ability of the inert gas determines its leakage through the slightest seal defects. Even in the best double-glazed windows, up to 3% of gas evaporates per year.

The average effective service life of an energy-saving window filled with inert gas is 10 years; after this period, the glass unit must be filled with gas again. This is associated with some inconvenience and unnecessary costs.

In addition, there is another risk factor - inert gases are odorless and colorless; it is extremely difficult to determine what exactly is pumped into your window. If you buy an expensive window from a trusted manufacturer, then you can be sure that the chamber contains inert gas. But in other cases there is no such 100% certainty.