Types and technical characteristics of insulating glass units

Double glazing - this is the one, the transparent part of the window through which we see the world).This is what is inserted into the PVC-frame, a block of glass sheets sealed together with the help of special technologies.

characteristics Changeteklopaketa entails the emergence of entirely new properties window created on its basis. What does the manufacturer seek, offering the buyer a variety of double-glazed windows?

Target tasks facing developers of

• double-glazed windows To limit the "leakage" of heat through windows, the same reducing the amount of payment for heating.
• Isolate the dwelling from extraneous noise. This is very important for buildings located near transport highways, construction sites, entertainment centers, etc.
• Prevent attempts at vandalism and illegal intrusion into private territory through windows. This is a priority task in the arrangement of offices and public places on the first floors of houses.
• To protect rooms of buildings and their inhabitants from atmospheric influences( wind, cold, sunshine, etc.)

How does the double-glazed windows work?

It has already been agreed that a double-glazed unit is a block consisting of several glass layers with a cavity between them and a spacer frame all along the perimeter. The emptiness of the frame is filled with special granules that collect excess moisture. Moreover, and in the frame itself there are dehydration holes, the size is not larger than the diameter of the granules of the moisture dehydrator. It is better if the frame is made from one curved profile than from disjoint parts. In this case, there are fewer joints and gaps that break the tightness. Relative impermeability is achieved through a variety of sealants. The chamber between the glass layers( there are several of them) is filled with a gaseous inert substance or dried air. Technical characteristics of double-glazed windows with gas in the chamber are much better than those of models with dried air. True gas in such glass packets in 10 years will have to be pumped again, because100% tightness can not guarantee any sealant.

Criteria for difference between

insulating glass units Number of glasses and cameras

1. Single-chamber insulating glass unit , the characteristics of which are dictated by the physical properties and thickness of the glass sheets( two of them) and the width of such a chamber. A simple single-chamber double-glazed window is an ideal option for those who are trying to save money. The price of such models is much lower than the two-camera, but we must admit that they are inferior in terms of technical characteristics.
2. Double-glazed windows with two cameras .This block is composed of three sheets of glass and two interlevel cameras. The technical characteristics of the double-glazed double-glazed units with different configurations are significantly different. The variety of properties of glass layers and the different widths between them affect the parameters of the window systems.
3. We also practice the production of window frames on request from 4 or more layers of glass.

Substance filling inter-glass space

• air-dried
• inert gas
• hexafluoride sulfur

Target destination

General construction units

Standard single-chamber double-glazed windows which are not endowed with any special characteristics

Specialized double-glazed windows

One of the windows of such blocks, usually, stands out among others clearly positive features: improved thermal, insulation or strength characteristics. These systems are chosen for specific conditions, guided by the desire to achieve the desired effect. If such a "special" glass has a "soft" protective layer, then it is placed in a film inside the double-glazed unit.

Shock-resistant double-glazed windows

Of several layers of a triplex or glasses, protected by a film, withstand mechanical actions of impressive strength. Even when broken, these double-glazed windows are not dangerous( they do not form sharp edges).The fragments do not crumble, but remain localized at the site of damage.

Energy-saving double-glazed windows

To enhance the energy efficiency of the window system, the chamber cavity in such glass blocks is filled with krypton or argon. Usually, in order to achieve the desired effect, it is sufficient to have one glass with "special" technical characteristics in the kit. All the rest are standard. Widely used are two types of glasses with converted reflective characteristics, which affect the heat-insulating qualities of the glass unit:

1. and glass. Film-forming materials are applied to the glass plane by the method of vacuum deposition, which create a "soft" protective low-emission layer, which helps to reflect the heat wave from the window surface. The surface emissivity index( E) illustrates the propensity of the glasses to "beat" the heat back into the building. E standard glass equals 0.83, and energy-saving glass - 0.004.Ie, the higher this indicator, the more heat energy leaves through the windows. Energy-saving double-glazed windows will help reduce thermal "leakage" to 90%.
2. For k-glasses is characterized by the presence of a "hard" coating of indium-tin oxides, which protects from the influence of infrared rays. In this case, the strengthening of the thermal insulation is achieved by applying a protective layer by the pyrolytic method. The specificity of this process lies in the high-thermal effect on gaseous organometallic compounds in the oxygen medium. The result of this effect - the molecules of metallic oxides create a deposit on the plane of the hot glass, baking into it.

sunshields are made of reflector glass with a reflective effect. They protect the premises from the influence of ultraviolet, according to the principle of the mirror. For such purposes, tempered glass obtained during heat treatment is also popular. The glass base of the window made of such material is distinguished by improved strength characteristics and wear resistance.

Cold-resistant double-glazed windows

They are characterized by a greater dew point( -55 degrees) than conventional( -35 degrees) and energy-saving( -45 degrees).Ie, the fogging of frost-resistant window blocks occurs at a lower temperature.

Noise protection insulating glass

As a rule, one of the two inter-glass cavities of this model exceeds the width of the other. Increases the soundproofness through the use of triplex glass or glass with insulation in the form of a layer of resin.

Standard technical characteristics of

Insulating glass What comparative characteristics are analyzed when choosing the right insulated glass units?

• Thickness of the glass unit
• Thermal permeability
• Soundproof
• Number of cameras

These values ​​determine, by and large, the cost of the window. The characteristics of the most popular models of double-glazed windows are collected in the table below:

Description of the design 4-12-4 indicates that the package includes the provision of 2 glass sheets( 4 mm each) with an inter-glass chamber equal to 12 mm. Marking 4-12-4-6-4 states that this two-chamber model is characterized by the presence of three glasses of 4 mm and two cameras between them( 12 mm and 6 mm).

Thermal characteristics of insulating glass units are directly determined by the number of chambers and the thickness of the glass. The thinner the glass layer, the worse it keeps the heat. Thermal performance is indicated in the column "resistance to heat transfer"