Why is this necessary? What is an energy-saving glass unit - advantages and disadvantages Heat-saving windows

Heat-saving double-glazed windows are double-glazed windows using heat-saving glasses: K-glass and i-glass(coated glass)

K-glass (hard coated glass)

A pyrolytic process for the production of float glass, in which metal oxides are deposited during the manufacturing process (i.e. on hot glass). The coating of this glass is hard, durable, has a neutral color, and has low emission properties.

Advantages:

• good ones thermal insulation properties(Ro = 0.58 m2K / W)
• reduction of heat loss in winter
• high light transmission
• neutral coloration in transmitted and reflected light
• hard and durable pyrolytic coating
• can be subjected to the following processing: bending, lamination and hardening

i-glass (soft coated glass)

High-quality glass with a low-emission coating applied to one glass surface using vacuum-magnetron sputtering. The coating has the properties of a light filter, transparent to the human eye, good transmission sunlight and reflects heat radiation back into the room. It consists of several thin layers containing silver, the choice of which depends on the required characteristics of the glazing: emissivity, light transmission, as well as optical properties - removal of unwanted reflection.

Advantages:

• maximum energy saving characteristics
• has high light transmission
• has low reflectivity
• reduction of internal condensation

Heat-saving glass

The low-emission coating has a very high electron density of atoms. Long-wave radiation (heat radiated inside a room by heating devices, central heating, electric bulbs and even the temperature of the human body) cannot fully pass through the coating, mostly reflected back into the room. Shortwave (solar energy) efficiently passes through low-emission glass, accumulates and turns into longwave, thereby providing an additional source of heat and effective insulation.

The use of heat-saving glasses can reduce energy losses by about 70%.

In connection with the growth in consumption of insulating glass units with heat and energy-saving glasses, since January 2009, the STiS Group of Companies has introduced additional marking of insulating glass units containing “warm” low-emission glass with a “soft” coating with a holographic sticker of the following type:

The holographic sticker is applied to the low-emissivity glass on outside glass.

Heat-saving double-glazed windows in wooden windows have spacer frames made with the use of plastic, which excludes the appearance of a "cold bridge", creating a thermal break. This design makes it possible to almost completely exclude freezing of the glass unit at the edges and significantly reduce the likelihood of fogging. Additional insulation of windows is carried out by filling the chambers with argon and the use of low-emission energy-saving I-glass.

What is I-glass

I-glass is an infrared (thermal) mirror that reflects thermal radiation back into the room. At the same time, I-glass does not interfere with the passage of the visible light of the Sun into the room. Such glass is made by applying a thin metal film onto an ordinary window glass... I-glass is installed in a glass unit with a film inside, so the glass unit can be easily washed without fear of damage to the coating.

Heat saving for OSB windows

At your request, we will install heat-saving double-glazed windows with a thickness of 28 mm and the formula 4-20TP + Ar-4I (single-chamber, consisting of M1 glass with a thickness of 4 mm, a 20 mm thick chamber filled with argon and having a frame with a thermal break - TP, energy-saving I-glasses with a thickness of 4 mm) or 4I-8TR + Ar-4I-8TR + Ar-4 (two-chamber, consisting of two chambers with a thickness of 8 mm, filled with argon and having frames with a thermal break, two energy-saving I-glasses with a thickness of 4 mm and one glass grade M1 with a thickness of 4 mm).

Thermal package 4-20TR + Ar-4I

Specifications

Single-chamber package of light weight, which reduces the load on the hardware elements, extending its service life.

The presence of only two glasses increases the light transmission of the window.

Optional

• Self-cleaning glass (Active)
• Sunscreen multifunctional glass
• Soundproof thick Pilkington glass

Thermal package 4I-8TR + Ar-4I-8TR + Ar-4

Specifications

Due to the presence of two cameras best thermal insulation and insulation.

Optional

• Self-cleaning glass (Active)
• Sunscreen multifunctional glass
• Soundproof thick Pilkington glass

Heat saving for Euro windows

The maximum heat saving for wooden Eurocon is achieved by installing in them two-chamber heat packs with the formula 4-12ТР + Ar-4И-14ТР + Ar-4 (38 mm). The double-glazed unit consists of one M1 glass with a thickness of 4 mm, two chambers with a thickness of 12 and 14 mm, filled with argon and having frames with a thermal break, two energy-saving I-glasses with a thickness of 4 mm.

Hello everyone!

Received an e-mail from one of the readers with a question about energy-saving double-glazed windows. They have in kindergarten replacement of windows is planned, they decide which is better to install.

Since in the children's room all year round cool, the parents want to make the environment more comfortable.

First of all, he was interested in the ratio of price and quality, that is, how much better such windows retain heat and how much higher their price is.

I am writing about all this especially for him and other enterprising parents who want to give their children all the best.

Welcome!

Energy-efficient double-glazed windows are the number one choice among consumers today.

They represent a certain type of glazing that perfectly retains heat in the room.

Unlike conventional glass units, insulating glass units with energy-saving glass are made of special glass, on top of which a certain low-emission coating is applied.

This allows solar energy with short wavelengths to pass unhindered directly into the interior premises, and the heat fluxes tending outward to be freely reflected, thus retaining heat.

There are several types of heat-saving windows:

1. Energy-saving double-glazed windows with argon. They contain a special gas that creates a certain pressure inside the system and prevents heat from escaping to the outside.
2. Energy-saving single-chamber double-glazed window. Has one camera.
3. Energy-saving double-glazed window. Presented by two cameras, respectively.

Production implies the use of several types of glasses in the process of their creation:

• I-glass with improved energy-saving effect, absolutely transparent;
• K-glass with a metal oxide on its surface has a lower degree of transparency.

Depends on the type of glass used in the process of their manufacture and the number of chambers. They are determined by the type of glass unit and the resistance to heat transfer.

Drawing an analogy with a conventional single-chamber window, it can be noted:

- that the level of its resistance to heat transfer is - 0.32,

- energy-saving single-chamber - 0.59,

- two-chamber conventional - 0.47,

- two-chamber energy-saving - 0.64.

Thus, we can say that, unlike the usual one, the energy saving package is 1.5 - 2 times warmer.

Before checking an energy-saving glass unit, it is necessary to check the presence of such an important indicator as a marking, which indicates the type of glass used, the number of chambers and the level of energy saving.

This is a prerequisite indicating their high level, quality, practicality and durability of performance.

Note!

Single-chamber or double-chamber package with energy saving function, saves about 38 -40% more heat than conventional ones metal plastic windows at the same cost!

Many manufacturers, unlike us, offer their customers deliberately inflated prices. Our price is the personification of democracy and acceptability for various categories of the population.

Or you can send a request for calculation to our managers and they will call you back and announce the cost of your window.

According to research, such windows pay off in 1 season !!! Then you get net savings for the rest of your time.

The energy-saving glass unit purchased from us is distinguished by:

• high quality;
• reliability;
• practicality;
• aesthetics;
• a high degree of functionality;
• excellent heat-saving properties;
• good fittings from the world's leading manufacturers.

We will provide you with a high level of service, the fastest possible window production and a long warranty period.

source: okna-region23.ru

Therefore, modern manufacturers are trying in every possible way to make their window as energy-efficient as possible.

For this, double-glazed windows with energy-saving glass are used in the windows - i-glass.

Energy saving characteristics

The characteristic of energy saving is the emissivity of glass.

Emissivity (emission) is understood as the ability of a glass surface to reflect long-wavelength thermal radiation invisible to the human eye, the wavelength of which is less than 16,000 (Nm).

The surface emitter (E) determines the emissivity of glass (for ordinary glass it is> 0.83, and the emissivity of selective glasses is less than 0.04) and, therefore, the ability to "reflect" back into the room thermal radiation.

The reason for the appearance of radiation lies in the movement of free electrons of atoms located on the surface of the glass, and the density of moving electrons.

Helpful advice!

The surface emissivity (E) of ordinary glass is> 0.83, and the emissivity of selective glasses is less than 0.04

Not all metals that conduct electric current well have the property of reflecting long-wave thermal radiation. Therefore, the lower the emitter, the less heat loss. In this case, glass with an optical coating having an emitter value of E = 0.004 reflects back into the room over 90% of the thermal energy leaving through the window.

That is why most of the window manufacturers in Russia are currently using energy-saving double-glazed windows and the share of their use on the market is constantly growing.

Difficulties with transportation and work with i-glasses associated with their design features, led to the fact that in the world, as a rule, only large, specialized firms are engaged in the production of energy-saving windows.

Energy-saving windows with i-glass are also offered by the company "Okna-Etalon". By purchasing it, you get the highest possible efficiency from the money spent!

i-glass is a low-emission glass with a multilayer coating (including silver) applied by plasma spraying in a vacuum.

This is a "soft" coating.

The sheet with such a coating should only face the inside of the glass unit. I-glass is produced by vacuum deposition and is a three-layer (or more) structure of alternating layers of silver dielectric (BiO, AlN, TiO2, etc.).

The application technology requires the use of high-vacuum equipment with a magnetron sputtering system. Low-emission i-glass during the heating season "returns" to the apartment up to 90% of the heat waves emitted by heating devices.

In summer, it reflects the thermal, infrared (IR) part of the solar radiation. As a result, the room becomes warmer in winter and cooler in summer.

I-glass has improved thermal performance. For example, at an outside temperature of -26 degrees and an indoor temperature of +20, the temperature on the surface of the window inside the room will be +5 degrees for a regular glass unit, and +14 degrees for an energy-saving one.

Advantages of using insulating glass units with energy-saving I-glass:

• i-glass reflects long-wave heat rays towards their emitter (that is, in winter towards an apartment where heating devices work, and in summer towards a street where stones, asphalt, etc. heated by the sun are located), which significantly reduces heating costs in winter and air conditioning in summer. In other words, the coating leaves heat where there is more.
• The thermal insulation capacity is significantly higher compared to a two-chamber glass unit. Thus, in any climatic zone thermal comfort in the room is achieved by using double-glazed windows with energy-saving glass. The effect - "blowing from the window" is eliminated.
• The temperature on the surface of the glass unit is higher than on the surface of ordinary glass, which reduces the likelihood of condensation on the glass.
• i-glass prevents fading of upholstery and interior items. Moreover, the transparency is similar to that of ordinary glass.

Compared to ordinary glass, i-glass can provide truly incredible savings.

On average, a private house has about 4 windows, with a total area of ​​about 9 sq. m. Total savings for heating season will amount to: 2070 kW, which is equivalent to 1.5 tons of coal for the heating period and will bring savings of about 6,000 rubles in the first heating season.

source: www.okna-etalon.ru

When choosing new windows, the buyer first of all looks at whether they are made of plastic or wood, not taking into account the fact that this plays a small role in energy saving, because the materials framing the translucent structure make up an insignificant part in the window.

But the skylights, which make up the bulk of the area of ​​the glass unit, account for more than 40% of all heat losses of the building. The use of ENERGY-SAVING GLASS will help to keep the heat as much as possible, preventing it from leaving the room through the window.

Energy-saving double-glazed windows have a number of advantages not only over single-chamber double-glazed windows made of ordinary glass, but also over two-chamber double-glazed windows, consisting of 3 of the same glass. Why are energy-efficient insulating glass units better compared to double-glazed insulating glass units made of three conventional glass panes?

1. The power package provides 30% higher resistance to heat transfer - about 0.61 m2K / W;
2. A single-chamber double-glazed unit is one third lighter than the commonly used double-glazed unit, i.e. is one third less material-intensive;
3. Such a glass unit is more acceptable for our climate;
4. In an energy-saving glass unit, a significant reduction in the load on fasteners and hinges helps to reduce their wear and, as a result, increases the durability of the frame structure;
5. A double-glazed unit with energy-saving glass is actually cheaper than a two-chamber unit by 20 - 30%;
6. The energy package significantly limits the passage of ultraviolet rays into the room, which prevents the fading of furniture and window curtains.

Often, when buying windows, we allow ourselves to save money, choosing cheap, "old" technologies that are not improved and not adapted to our weather conditions.

We gave an example of a technology that currently the most suitable for the buyer in terms of price-quality ratio.

Our company successfully works with this technology and in its production uses only high-quality glass "ClimaGuard N" "ClimaGuard Solar", "Sun-Guard High Performance" from the world famous company "GUARDIAN" USA, which has its glass factories all over the world.

One of issues of concern consumers are faced with the question of defining glass with an energy-efficient coating.

Helpful advice!

One of the most popular and affordable testing methods is to hold fire to glass, the color of the reflection of which will change from yellow to red.

A red flame indicates an energy saving coating. This method is optional but not basic.

The most loyal and professional way determination of an energy-saving coating in glass is a special electronic device that determines both the presence of the coating itself and the side on which it is applied, which cannot be done by the above method.

What kind of glass "ClimaGuard N"?

1. Heat-saving glass with silver dusting;
2. Effectively retains heat indoors in winter;
3. Reduces heat loss;
4. Increases the temperature of the inner glass by 6 degrees (center temperature, calculated value);

Produced in Germany, Luxembourg, Russia, Poland, Hungary. The technology of vacuum magnetron sputtering allows the deposition of transparent layers of silver atoms and silicon nitride (to protect silver).

Note!

With the help of silver on glass, we get the same effect in the room as in a thermos - the heat stays inside, and does not go into the atmosphere. Heat loss when installing such glass is reduced by 15 - 20%.

What is ClimaGuard Solar glass?

It is a multifunctional glass that protects against heat in summer and cold in winter. Super-thin layers of metals applied to the glass make it possible to keep it as transparent as possible.

A special coating of silver and other metals creates the effect of a transparent filter that allows visible light to pass through, but significantly reduces the penetration of solar heat into the house in summer and heat leakage in winter.

The silver coating on the ClimaGuard Solar glass reflects long-wave thermal radiation, for example from heating devices, inside the room, preventing it from going outside.

• ClimaGuard Solar glass provides effective protection from the sun, which helps to significantly reduce the cost of air conditioning (solar factor 42%);
• A high coefficient of resistance to heat transfer (0.65 m2K / W) allows you to reduce the cost of heating a room in the cold season (heat savings - up to 78%);
• Visually transparent glass (no color distortion);
• ClimaGuard Solar glass is preferable to use in projects where energy saving, sun protection and good natural lighting of premises are important.

What kind of "Sun-Guard High Performance" glass?

Peculiarities:

1. Sun protection properties. Multifunctional glass "Sun-Guard HP" Capable of filtering the sun's rays by wavelength. Most of the heat radiation is reflected (blocking solar (thermal) radiation), and natural light enters the room with little or no obstruction.
2. Thermal insulation properties. Multifunctional glass "Sun-Guard HP" provides high thermal insulation (low coefficient of thermal conductivity) in a glass unit, where the second glass is ordinary transparent.
3. A wide range of shades and colors.
4. Benefits for end users. The use of multifunctional glass "Sun-Guard HP" reduces the cost of air conditioning and heating of the building without loss of illumination and color rendering.

Improved thermal insulation increases the surface temperature of the glass, which reduces the circulation of cold air and the likelihood of condensation on the inner glass in cold climates, and also reduces condensation on the outer glass of the façade in hot and humid climates.

You can choose any design, but we always remind our customers that when the right choice You will not only avoid heat loss and save heating costs, but also drastically reduce the penetration of annoying noise from the street.

The most important thing is to ensure the durability of the structure with your choice while preserving all its original properties.

source: www.shklyarus.by

Today, our country maintains a centralized system of heat and power supply. Mostly this is a heat supply system, in which about 65% is the share of CHP.

The rest of the share is accounted for by boiler houses and autonomous heating systems.

Tariffs for heat and energy resources have a tendency of constant growth, and therefore efficient work heating networks and a significant reduction in heat loss is considered as a strategic task.

In this regard, the problem of energy conservation has become one of the most urgent for our country. That is why manufacturers of plastic windows decide the issue of keeping warm in the room by using energy-saving glasses.

It should be noted that the heat-shielding and energy-saving functions of the window acquire essential for the end consumer, because through the windows, depending on the type of house, heat losses occur from 37% to 56% (apartments located at the end of the house).

Areas with a red background are “hot” areas through which heat is escaping most intensively:

• walls ~ 30%
• roof ~ 14%
• floor ~ 12%
• windows ~ 44%

100% living space 4 5 storey houses approximately 12-16% of window openings account for, through which heat loss in modern residential premises averages about 40%.

Helpful advice!

Heat loss through old wooden windows is about the same as heat loss through walls. It turns out that heat losses occur through the windows through cracks, leaks and during ventilation of the premises.

German experience

So in Germany, in order to reduce heat loss, a massive reconstruction of buildings was carried out, namely walls, facades and replacement of windows.

After carrying out an analysis associated with calculations to reduce heat loss, the result showed the following:

- heat loss through the walls was reduced by 73%,

- thermal radiation through windows by 62%,

- heat loss during air exchange by 50%.

Similar calculations were carried out in our country for the relative reduction in heat loss:

if we replace the existing wooden windows with plastic ones, then in terms of the average cost of heat energy from the CHP to middle lane Russia, the savings for an average apartment will be about 3 thousand rubles for the heating season. Of course, the figures are approximate, and the tariffs for heat carriers differ even within the same region.

Here are some more examples: in Moscow, during the reconstruction of panel houses, windows are replaced simultaneously with the insulation of the facades. The energy saving program in Moscow is planning to install windows with energy-saving double-glazed windows.

This is beneficial because it solves the problem of eliminating significant heat losses. At the same time, the appearance of the facades of houses is preserved after the reconstruction as a result of the unauthorized installation of windows by residents.

In the city of Chelyabinsk at the end of 2009, a project was carried out to install funds individual registration heat in two multi-apartment panel buildings.

The results showed the residents' desire to save money, since this immediately began to affect the bills for heat carriers. They began to regulate the temperature with a thermostat on the battery, and not with a window.

This means that less heat was emitted from the windows into the atmosphere.

For residents of private houses and cottages, the following example can be given:

- experts have calculated that the windows country house medium-sized ones, equipped with double-glazed windows with energy-saving glass, save as much heat energy during the heating season as 300 kg of liquid fuel such as fuel oil or diesel fuel gives.

So what are energy-efficient glass and how do they help keep the home warm? What is the difference between energy-saving glass and simple glass?

To make it clear for an ordinary end consumer - on one side of the surface of energy-saving glass, a coating that is invisible to our eyes is applied, which is a kind of filter.

The coating prevents the release of long-wave thermal radiation (infrared waves) from heating appliances and reflects it into the room. Thus, the heat is retained and does not escape to the outside.

Note!

Energy-saving glass has a metallic coating thickness of only a few tens of nanometers.

It is no different from ordinary glass and is absolutely transparent to our eyes. Energy-saving glass is used in the manufacture of double-glazed windows, since their operation requires complete tightness.

For the production of ordinary sheet glass, two methods are used: vertical - by the drawing method and horizontal - on the molten metal.

When using the horizontal method, so-called float glass is obtained, which has excellent optical properties and high light transmittance. So it is used for the production of energy-saving glasses. On the polished surface of float glass, a coating of non-ferrous metals (mainly silver) or their oxides is applied by spraying.

Due to the phenomena of electrical conductivity and interference, such glass gains the ability to reflect heat waves in the infrared range and, thereby, reduce heat loss in the room.

Glass with such properties is also called heat-saving, low-emission, and selective.

The first definition speaks for itself.

The second definition is related to such a physical concept as surface emissivity or emission. Emission of energy-saving glass is an order of magnitude less than ordinary glass, which is why it is called low-emission glass.

The term "selective" means that our glass selectively transmits light and heat waves, and it turns out that in the summer heat, the use of energy-saving glasses will protect your home from the penetration of infrared sunlight that can quickly heat the air in the room, and in the cold season, on the contrary , the heat will be reflected from the heating devices into the room.

This means that in any weather the microclimate that is optimal for comfortable living will remain in the house. In regions with hot climates, it is recommended to use darkening low-emissivity glasses.

They have an even lower degree of transmission of sunlight, protecting the premises from the heat brought by the sun in the summer. Such sun-protection glass can have a different tint color: bronze, gray, green, pink.

Currently, two types of coatings are used for energy-saving glasses:

• soft (Double Low-E), the so-called I-glass;
• hard (Low-E) or K-glass.

Energy-saving hard-coated glass (K-glass) is produced by applying a thin layer of oxides of some metals on more hot surface float glass directly during its manufacture.

On its surface by the method of chemical reaction at high temperature(pyrolysis method) creates a thin layer of metal oxides InSnO2, which is transparent and at the same time has electrical conductivity.

It is known that electrical conductivity is directly related to the emissivity (E) of the surface. The emissivity of plain glass is 0.84, while that of K-glass is usually about 0.2.

This coating is particularly durable and therefore it is called hard.

K-glass, significantly reducing heat loss, improves the thermal insulation of the room and thereby reduces the cost of heating it. In appearance, it does not differ from ordinary glass and has the same high light transmission. K-glass as a part of a double-glazed window is turned by a low-emission coating towards the room.

It does not transmit long-wavelength thermal radiation from heating devices through the interwindow space.

Note!

Energy-saving glass with a soft coating (I-glass) is produced using a more sophisticated technology.

I-glass is a high-quality glass with a low-emission coating applied to one glass surface under vacuum conditions, by the method of cathodic sputtering in a magnetic field of metal-containing compounds with specified selective properties.

The float glass is coated with a layer of silver and titanium oxide as a secondary coating. It has better characteristics compared to K-glass, in particular, higher light transmittance and lower emissivity.

It should be borne in mind that I-glass has low abrasion resistance (it can be easily scratched).

The use of double-glazed windows, which include I-glass, allows not only to reduce energy consumption for heating a room, but also to significantly increase its comfort.

However, due to the fact that its energy-saving coating is always located inside the glass unit, on operational characteristics this disadvantage does not affect.

So, what is it - an energy-saving glass unit? First, let's find out what a regular package is.

The product is a system consisting of two or three sheets of glass connected along a contour so that a hermetically sealed chamber with a layer of dried air is formed between them.

That is, double-glazed windows can be divided into three types by design:

• SPOR - single-chamber with a framing frame (the width of the framing frame shelf should be 15 (± 1) mm and the distance between the glasses can be 6, 8, 9, 10, 12, 15 mm);
• SPO - single-chamber (the distance between the glasses can be 6, 8, 9, 10, 12, 15, 16 mm);
• SPD - two-chamber (the distance between the glasses can be 6, 8, 9, 10, 12 mm).

There are double-glazed windows filled with air and noble gases (argon, krypton).

Thus, an energy-saving glass unit is a product that includes low-emission glass.

To understand how low-emissivity glass works, it is necessary to understand the meaning of the term “emissivity”.

Emissivity is a measure of a surface's ability to absorb or lose heat (E). It is customary to assess the emissivity on a scale from "0" to "1" (from 0 to 100%).

A large value on the scale indicates that the surface is a good heat emitter (it loses heat quickly). A low value on the scale indicates that the surface is a poor heat emitter (it loses heat slowly).

Surface emissivity of ordinary glass = 0.9. The emissivity of the surface of the glass with low emission coating = 0.17. These coefficients show that ordinary glass has a high emissivity of 0.9 and therefore is a poor insulator because it quickly loses heat.

Low emissivity glass has an emissivity of 0.17, a very low value, it loses heat slowly, therefore it is a good insulator.

Advantages of an energy-saving glass unit

1. Effectively retains heat indoors in winter up to 60% (maximum energy saving characteristics)
2. Solar protection in summer (reflects up to 34% of solar heat)
3. The likelihood of condensation on the windows decreases (the temperature in the window area rises)
4. Heating costs are reduced (electricity or gas consumption in winter is reduced by reducing heat loss)
5. Improves the microclimate (which ensures, for example, the optimal development of indoor plants)
6. Cleans the room from germs (due to the transmission of ultraviolet radiation)
7. Visually transparent glass inside (no color distortion)
8. Protects interior details from fading

Comparison of the thermal characteristics of windows with energy-saving glass and with conventional double-glazed windows shows that a single-chamber double-glazed window with energy-saving glass is more efficient than a two-chamber double-glazed window.

Window manufacturers give a comparison at a temperature outside the window of -26 degrees and an air temperature inside the room + 20 degrees:

• Regular double-glazed windows. The temperature on the inner glass is + 5 degrees.
• Double-glazed unit with K glass. The temperature on the inner glass is + 11 degrees.
• Double-glazed unit with I-glass. The temperature on the inner glass is + 14 degrees.

How to determine the presence of an energy-efficient glass unit?

If you bring a lighter or a candle to the glass unit and consider the reflection of the flame.

Then on ordinary glass both reflections of the flame will be the same - yellow, and on glass with energy saving one flame will be yellow, as on ordinary glass, and the second flame will have a pronounced red tint.

Energy saving glass

They are both hard and soft coated and are widely used in many countries.

Their production technology is rather complicated and requires high qualifications from manufacturers. Therefore, there are only a few large companies in the world that produce energy-saving glass in large volumes.

Until recently, the bulk of high-quality glass was imported in Russia. After the completion of the construction of the new Glaverbel production complex in the Klinsky District of the Moscow Region, Russians were able to use domestic energy-saving glass in the glazing of their homes and offices.

So what is the best way to keep your home warm most effectively in winter? The advantages of insulating glass units with energy-saving glass are obvious here. And their use, especially in the construction of private houses and cottages, can be very profitable, subject to modern heating and ventilation systems.

Coziness and warmth in a house depends on quality window structures... Many people want to buy windows in Moscow that have high thermal protection rates, which let sunlight into the room well.

I-glass constructions have a number of advantages:

• reduce heating costs;
• prevent fading of interior items;
• improve the thermal insulation of the room;
• do not accumulate on inside condensate;
• have a long service life.

You need to know that the price of heat-saving windows in Moscow is available to everyone. The i-glass designs do not differ much in cost from conventional plastic models.

Pricing examples

Bivalve.

Profile: KBE Etalon 58 mm.

Price * with a 29% discount 8 190 rubles.

Tricuspid.

Profile: KBE Etalon 58 mm.

Filling: double-glazed window 4-10-4-10-4IST (thickness 32 mm).

The outer glass is coated with a low-emission, energy-saving coating based on silver ions.

Price * with a 29% discount 11 960 rubles.

Balcony block.

Profile: KBE Etalon 58 mm.

Filling: double-glazed window 4-10-4-10-4IST (thickness 32 mm).

The outer glass is coated with a low-emission, energy-saving coating based on silver ions.

Price * with a 29% discount 14,700 rubles.

* The cost is indicated for the product: excluding delivery and installation work.

Advantages of ordering in "Okna-Star"

The company offers energy-saving plastic windows for any premises. The company has extensive experience, offers customers only high quality products made according to individual measurements.

Another advantage is that we ourselves produce heat-saving plastic windows. All materials used are characterized by high wear resistance, safety for human health.

When ordering from us window systems with energy-saving double-glazed windows, you will not have to wait long. The manufacture of structures will take a minimum of time, the work will be completed within the specified time frame.

How we are working?

Customers know that the cost of the products we offer is affordable. Cooperation with the client begins at the measurement stage. You can call a measurer for free and calculate the cost.

After taking measurements, the employees of our company perform the following actions:

• clarify the wishes of customers;
• design systems;
• make structures;
• deliver them to the object.

The profile and glass of the structures are of high quality, and they are installed by real professionals.

heat-saving glass is ... What is heat-saving glass?

High quality thin-film coated glass, which is applied by vacuum magnetron sputtering. Passing solar energy into the room, they do not allow the heat flow created by the heating devices to escape outside. There are two types of heat-saving glass: i-glass (LOW-E) has a "soft" silver-based coating, which gives the product a bluish color. i-glass is used only in the production of sealed insulating glass units, and the coated side must face the inside of the insulating glass unit. Transmits more than 75-83% of visible light, while more than 90-95% of heat is reflected back into the room. k-glass has a "hard" coating based on strong oxides, titanium, tin or indium nitrides, which give the product a blue or yellowish tint. k-glass is used as regular glass or solar control glass. Transmits 60-80% of visible light, reflects 60 to 90% of heat back into the room. The former may look slightly tinted due to the durable smoky finish. The surface of the latter is less resistant to external influences, but thermal insulation characteristics glasses are much higher. At an outside temperature of -26 ° C and an indoor temperature of + 20 ° C, the temperature on the glass surface inside the room for a regular double-glazed unit is + 5.1 ° C, for a double-glazed unit with K-glass + 11 ° C, with I-glass + 14 ° WITH.

Source: "Explanatory building and architectural dictionary, edited by A. Bakulin."

Construction vocabulary.

• reflective glass
• tinted glass

See what "heat-saving glass" is in other dictionaries:

Float glass - - architectural, heat-saving, reflective, decorative, used for window glazing, Vehicle, double-glazed windows. [Shchukina E. G. Arkhincheeva N. V. New Construction Materials... Glossary of terms. Ulan Ude 2006] Heading ... Encyclopedia of terms, definitions and explanations of building materials

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Heat Saving Glass | Housekeeper

issue number 16

heat-saving glass - polished glass with a special low-emission coating of metal oxides is called heat-saving (energy-saving)

Heat-saving glass.

In real time, for the manufacture of energy-saving glass bags, two types of glasses with different types of coatings are used: a hard (pyrolytic) coating - in other words, K-glass and a soft (magnetron) coating - I-glass.

K-GLASS is a very high quality float glass with a resistant, translucent "iron" coating (it consists of almost a dozen elements, usually metals). The coating ensures the passage of solar energy into the building (it is transparent, has no color and its effect on light transmission and reflection is virtually invisible), but significantly reduces heat loss through the window (which is what it is intended for). In other words, the coating transmits short-wave energy from the sun into the room, but does not transmit long-wave heat radiation outside (for example, from a radiator). K-glass is similar in appearance to plain transparent glass. double-glazed windows can be installed both instead of external and internal glass. The first method makes it possible to save heat in the room (to reduce heating costs, which is most important for Russian winters). second - makes it possible to reduce the flow of heat from the street to the room (very possible way installations for countries with hot climates, to which we, unfortunately, do not belong - .K.).

I-GLASS. The soft coating (TOP-N) is applied by electromagnetic spraying, during which metal oxide particles are deposited on the glass in a vacuum environment. The advantage of this method lies in obtaining glass coated with the same "magnetron" heat-saving layer.

Technique for applying heat-saving coatings to architectural glass

Most of the heat used to heat buildings is lost as heat radiation through the glass. Removal of this channel of heat loss is achieved by using heat-saving glasses that reflect thermal (infrared) radiation and transmit visible radiation

Energy saving (heat saving) glass.

The use of such glass in the construction of a glass package makes it possible to reduce heat loss by 15%. The sun's rays, penetrating the middle of the room, give off their own energy to the objects in the room. The heated bodies become heat sources, emitting heat waves in the infrared range. A special (low-emission) coating on the glass surface has the property of displaying waves in this range itself, thus interfering with heat loss.

Heat-saving sheet glass (TOP)

The sale of flat glass from China is carried out by the Barnaul glass company.

As far as we know, 2/3 of the heat loss in the premises is brought to the outside by radiation through the window glass, because the glass has a great ability to radiate. In order to avoid heat loss, heat-saving sheet glass is used. A special low-emission metal oxide coating is applied to the glass surface. This coating is colorless, its thickness is a couple of hundred angstroms, thanks to this, from the outside, a window made of a similar sheet glass does not differ from simple translucent glass.

Glass packs with heat-saving (low-emission) glass

Replacing all glass packages with silicate glass with energy-saving glass packages provides heating savings of about 20% to 35%! This is very important for our windy and cool Ural winters.

Today's heat-saving glasses

Today's heat-saving glasses make it possible to achieve a high value of the reduced heat transfer resistance ro due to the use of high-quality coatings. But similar glasses reduce the flow of solar heat into the room, because the single flow of transmitted energy is still reduced.

One of the important advantages of climaguard N heat-saving glass is considered to be the excellent value of R0 = 0.66 m2s / t (GOST 24866-99) in combination with high energy transmission capacity (g = 66%, EN 410), which makes it possible to use free solar energy in order to achieve favorable heat balance buildings.

About glass

The heat leakage through the window openings in the rooms is on average 40%, and part of the heat is absorbed by the glass. In order to prevent heat from getting into the middle of the glass, a special optical coating is used. Glasses are produced with "hard" coatings - K-glass, and in other words "soft" - i-glass. Heat-saving glass (energy-saving) is mainly used in the manufacture of glass bags.

Heat-reflecting and heat-saving glass

Heat-reflecting glasses are obtained mainly by applying a mirror metallized layer (by evaporation of metal and oxides in a vacuum, cathodic sputtering or chemical deposition from solutions). To obtain the greatest reflection, the thickness of the resulting film is important. In most cases, five layers are applied: 4 layers - metal oxide, the fifth layer - silver. Silver practically fully displays radiation with a wavelength of A.> 760 nm. Mirror Films take place to be colorless and colored.

Heat-saving glass makes it possible to reduce heat loss from the room through the windows by about 35 ... 40%, which is very important during winter. Similar glasses are called low-emissivity, thus emphasizing their low emissivity from the outside surface.

Heat-saving glass

It is a type of glass designed to reduce heat loss due to thermal radiation. They are also called energy saving.

Additional properties of thermal insulation are associated with the application of a special coating on the glass, which ensures the passage of the sun's energy into the building, preventing long-wave thermal radiation from the design of radiators from leaving the room.

Low-emission (energy-saving) glass

The coating freely transmits short-wave solar energy into the room, while simultaneously displaying long-wave radiation of heat, for example, from appliances with a heating function, into the middle of the room, preventing it from escaping outside. (due to this, sometimes glasses with low-emission coatings are called "selective glasses").

summer of the year the heat-saving coating displays the solar energy of the heat with outside, preventing the penetration of heat into the middle of the room. The coating is a couple of hundred angstroms thick, has the characteristics of a light filter, is transparent to the human eye, visually glass with a heat-saving coating is no different from simple translucent glass.

Novelties of low-emission architectural glass used for glazing of facades and production of transparent structures

Low-emissivity glass has excellent energy saving characteristics. With good light transmission, on the one hand, it transmits the radiation of the sun, and on the other, it displays infrared heat radiation (especially long and average waves). This was achieved by the application technique different coatings from metal to glass surface.

Based on the glass characteristics required for different climatic conditions, steklo.Com can offer several series of low-emissivity glass.

By functionality:

· Low-emission glass with high light transmittance;

· Darkening low-emissivity glass.

By type of coverage:

· Glass with one low-emission coating;

· Low-emission glass with double silver coating;

· Super low-emission glass.

Double-glazed windows made of planibel topn + heat-saving glass - an excellent solution for a thrifty owner

As far as is known, today's double-glazed windows to a certain extent solve problems such as heat leakage through window openings or the intrusion of loud street noise into a house. However, how well do they handle these problems? In winter, we will continue to intensively heat our apartments by all available means, constantly paying for gas, electricity or centralized heating and complaining about the increase in tariffs ... is it possible to perform even more powerful protection against heat loss? It is possible if the windows are glazed with planibel topn + low-emission glass.

polls and answers about energy-saving glasses

1. Why choose a double-glazed unit with energy-saving glass2

There are several reasons why people choose energy-saving glass packages for their houses and apartments. first of all, this, of course, is a great economy of fuel (liquid and solid), intended for building comfortable temperature conditions... For residents of apartments in the city, this means the ability to adjust the intensity of air heating with batteries main heating... the room is quite warm - you can pin the valves in the batteries. Glass packages with energy-saving glass are made to the maximum optimal temperature in the premises and make it possible to significantly save on heating and air conditioning.

Energy saving glass packages

K-glass (hard coated glass)

A pyrolytic process for making float glass, in which metal oxides are deposited during its manufacture (i.e. on hot glass). When it cools down, it comes out practical glass in any position. The coating of this glass is considered to be hard, durable, with a neutral color, and has low emission characteristics.

Good thermal insulation properties (ro = 0.58 m2k / t)

Reducing heat loss during winter

High light transmission

Neutral painting in transmitted and reflected light

Hard and durable pyrolytic coating

Can be finished with the following finishes: bending, laminating and tempering

I-glass (soft coated glass)

The process of vacuum-magnetron sputtering of an energy-saving layer - silver. Due to the silver layer, the glass surface becomes electrically conductive, and electromagnetic radiation of a more specific wavelength is mostly reflected from this metal surface.

The biggest energy saving properties

Possesses high transparency

Possesses low reflective ability

Reducing internal condensation

Energy saving glass.

Heat loss through glass is made up of heat conduction, convection and heat radiation. The emissivity of glass is considered to be the main characteristic of energy saving. The ability to radiate glass (emission) of glass is the ability of a glass surface to display long-wavelength radiation of heat of a specific wavelength invisible to the human eye. The emitter of the plane determines the emissivity of the glass and, therefore, the ability, as it were, to "reflect" back into the room the radiation of heat.

masterdom35.ru

Heat-saving glass

It is important for a person who decides to install PVC windows to determine what exactly he wants to get from the installation of these windows: just put a modern beautiful window or protect his home from noise, cold and solar overheating.

If you chose the latter, then the best option is to install windows with energy-saving glass.

What is heat-saving (energy-saving) glass? These are glasses on which special ultra-thin completely transparent low-emission coatings are applied. Low-emission coatings transmit short-wavelength radiation and do not transmit long-wavelength radiation. In other words, they transmit sunlight well into the room and poorly transmit the heat emanating from the heating devices, as a result of which warm air remains in the room, and does not go out through the glass. This significantly reduces the cost of heating the premises and saves significant funds.

According to their technology and efficiency, energy-saving glasses are divided into K-glass and I-glass.

1. K-glass is produced by pyrolytic technology with a durable hard coating (metal). K-glass production technology consists in coating the glass during its manufacture. Metal oxides are sprayed onto glass at a temperature of about 600 degrees. At such a high temperature, metal oxides penetrate into the very structure of the glass, becoming one with the glass.

In appearance, K-glass does not differ from ordinary glass.

K-glass significantly reduces heat loss. It transmits short-wave solar energy into the room and does not transmit long-wave heat radiation from heating devices to the outside. The disadvantages of K-glass include its lower efficiency compared to I-glass and a high price.

K-glass can be tempered and laminated. Glass is tempered by chemical or heat treatment, therefore, the strength of the glass increases to various shocks and temperature extremes. Laminated glass is two or more glasses connected with a special film or special liquid.

2. I-glass is manufactured using magnetor technology with a soft coating. This technology consists in the deposition of the smallest particles of metal oxides in a vacuum environment by means of electromagnetic spraying on glass.

The disadvantage of I-glass is its abrasive fragility, which affects transportation and storage. After opening the package, such glass must be installed immediately, therefore, mainly specialized firms work with such glass. But the thermal insulation properties of I-glass are much higher than that of K-glass, and its price is lower.

The main misconceptions about heat-saving glasses:

1. Heat-saving glasses have a short service life.

Not true. The heat-saving coating cannot be damaged during the operation of the window, as it is located inside a sealed glass unit. Its service life is equal to that of the window.

2. Heat-saving glass does not transmit ultraviolet light.

Not true. UVB film, which is glued to windows, does not transmit ultraviolet light.

3. Heat-saving glass has a bad effect on indoor plants.

Not true. Plants need visible light, and heat-saving glass is the best way to let sunlight through and, in addition, create a microclimate so necessary for indoor plants.

4. Heat-saving glass will make it hotter in summer.

Not true. Heat-saving glass heats up the room in summer by 12% less than ordinary glass.

www.okna-git.ru

Heat-saving glass. Energy saving double-glazed windows. |

Heat-saving glass

Heat-saving glass has been dreamed of for a long time. Of course, after all, a significant part of the heat loss of a house or apartment, especially in the cold season, falls on glass, despite the fact that you have installed high-quality double-glazed windows.

Oh, how we want to live in a warm house, and pay insignificant amounts for heating.

This is where heat-saving glass comes in. it modern material, which has already been coated with a thin layer of metal oxide coating.

It is very good that this layer is practically invisible to the naked eye and perfectly transmits sunlight. The emission factor of such glass is lower.

Heat-saving glass - unique properties:

And in cold weather, heat-saving glass (selective) reflects heat waves from heating devices back into the room. This is why there is a reduction in heat loss, therefore, it is a great opportunity to save on heating costs.

Another plus from the installation of heat-saving glass is the reduction of the appearance of condensation from the glass unit.

Naturally, such unique properties of heat-saving glass increase its cost.

But on the other hand, you can save on the number of chambers: a single-chamber double-glazed unit with heat-saving glass is equal in efficiency to a two-chamber double-glazed unit with ordinary glasses.

By installing such double-glazed windows, which use heat-saving glass, we get a double benefit. After all, in summer, low-emission glass reflects the sun's rays from the street and does not allow the interior of the house to heat up too much. And we don't have to turn on air conditioners so often. Again, a solid benefit!

I think that very soon heat-saving glass will become not a curiosity, but our everyday life, and no one will be surprised at its such unique properties.

vikostroy.ru

What does "energy-saving glass" mean | PromGlass

If a person decides to put plastic windows in his house, you need to immediately decide what his expectations are about this. Someone wants to get a modern window with a beautiful appearance... Others want to protect themselves from noise or cold. In this case, you should take care of installing windows with special glasses.

Energy-saving glass is a material on which additional layers of silver are applied, which at first glance are invisible to the eyes, as well as oxides and some metals. Thanks to this, it is possible to reflect heat radiation coming from warm objects or special heating devices. Silver helps to reflect heat into the room and stay in it. Thus, heat loss can be avoided by several times.

Benefits of glass

The possibility of installing heat-saving glass provides a number of advantages:

1. The light transmittance is over 80%.
2. High resistance to heat transfer to other objects.
3. In comparison with a traditional glass unit, heat is retained 75% better.
4. Very low heat loss. They can amount to winter time slightly more than 20%.
5. Excellent reflection of solar energy (over 55%).

The essence of heat-saving glasses is that they transmit short-wavelength radiation, while long-wavelength ones remain in the same place. This is possible due to the application of a low-emission coating to the surface. Simply put, the coating makes it possible to transmit light from the sun into the room, but does not allow it to go back. At the same time, the heat emanating from the heating equipment remains in the apartment, and does not go out through the windows. Such features allow you to reduce heating costs and at the same time feel a pleasant temperature in the house.

Myths about glass with heat-saving properties

There are several misconceptions inherent in those who have never dealt with such window protection options. The most popular will be the following:

1. Short service life. It is not clear where such a myth came from, but the fact that it is not true is for sure. During the operation of the system, the window cannot be damaged, since it is located inside a sealed glass unit. Therefore, as long as the window itself will last, so much is the glass in it.
2. The material does not transmit UV light. In fact, UVB light is not allowed through because of the PVB film, which is usually glued to windows.
3. Bad influence on plant life. This is not the case, because sunlight perfectly enters through the glass, which is needed for the active growth of plants. Thanks to this, a favorable microclimate is created in the room.
4. Energy efficient glass can get hotter in summer. It seems logical, but it is still not true. According to the results of experiments, in the summer period, ordinary glass heats the room 12% more than such.

prglass.ru

Energy saving windows - how energy saving (warm) glass works

Energy-saving double-glazed windows are structures with 1-5 chambers (layers of air between the panes). The more cameras there are, the more efficiently the whole glass unit works.

• Double-glazed windows: how many cameras
• Hard and soft energy saving glass.

Double-glazed windows: how many cameras?

Single-chamber double-glazed windows have only two glasses - very similar to ordinary windows (not "euro"). Of course, the thickness of the glasses and their energy efficiency also matter, however, there is one camera - there is one camera. If you install windows with single-chamber double-glazed windows in the house, it will not get much warmer. The question is, why then do we need single-chamber double-glazed windows? But, for example, by installing even a single-chamber double-glazed window, you can permanently get rid of drafts and once and for all solve the problem of gluing windows in winter period.

A two-chamber energy-saving glass unit is a more reliable purchase. The same condensate (effect crying windows) will be formed already when the temperature drops below –18 0С. Although, of course, our winters do not do with such temperatures.

Immediately discard the option of one- and two-chamber double-glazed windows is not worth it. Firstly, the thickness of even ordinary tempered glasses can be different, which greatly affects their thermal stability. Secondly, if not ordinary tempered glass, but energy-saving glass is installed in a double-glazed window, comfortable conditions in the house will be provided.

Energy-saving glass for double-glazed windows: options

A material as cold as glass is turned into reliable barrier low degrees, spraying on its surface with a special thinnest transparent coating (optical). The coating is low-emission. Simply put, it makes it difficult to exchange temperatures between the street and the room. As a result, the warmth remains in the house, the cold outside the windows.

When choosing double-glazed windows, it is worth paying attention to such an indicator as the glass emitter (denoted by the letter "E"). This is one of the main indicators that determines the reflectivity of glass. That is, the heat, which, as it were, is about to penetrate through the glass into the street, is reflected back into the house. Low emitter - low heat loss. Energy-saving glass with an optical coating can retain up to 90% of the heat in a room. Not a bad indicator.

"Hard" and "soft" energy-saving glass

Optical energy-saving glass can be of two types: "hard" and "soft". The "hard" coating (denoted by the letter "K") consists of indium and tin oxides. It makes glasses "warmer" 6-8 times (compared to conventional ones).

The “soft” coating, which can be used to cover energy-saving windows (denoted by the letter “I”, consists of several metals (including silver). Warm windows with such a coating is a reality, since the reflectivity of glasses increases tenfold.

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