The double -glazed window is that, it is the transparent part of the window through which we see the world). This is what is inserted into the PVCrama, a block made of glass sheets, hermetically sealed with the help of special technologies.
Content
- Target tasks facing the developers of double -glazed windows
- How does a double -glazed window work?
- Criteria for the difference between double -glazed models
- Standard technical characteristics of double -glazed windows
A change in the characteristics of the double -glazed window entails the appearance of completely new properties of the window created on its basis. What is the manufacturer strive for by offering the buyer a variety of double -glazed windows?
Target tasks facing the developers of double -glazed windows
- Limit the "leak" of heat through the windows, by the same reducing the amount of payment for heating.
- Isolate the dwelling from extraneous noise. This is very relevant for buildings located near transport highways, construction projects, entertainment centers, etc.
- To prevent attempts to vandalism and illegal invasion of private territory through the windows. This is a priority task in arranging offices and public places located on the first floors of houses.
- Protect the rooms of buildings and their inhabitants from atmospheric influences (wind, cold, sun, etc.)
How does a double -glazed window work?
It is previously stipulated that a double -glazed window is a block consisting of several glass layers with a cavity between them and a distance frame around the perimeter. The emptiness of the frame is filled with special granules collecting excess moisture. Moreover, in the frame itself there are dehydration holes, the size of no more than the diameter of the granules of the moisture coiner. It is better if the frame is made of one curved profile than from scattered parts. In this case, fewer joints and gaps that violate tightness are obtained. Relative impermeability is achieved using a variety of sealants. The camera between glass layers (there are several of them) is filled with a gaseous inert substance or dried air. Technical characteristics of glass windows with gas in the chamber are much better than the characteristics of drained air models. True, gas in such glass packages after 10 years will have to be downloaded again, because One hundred percent tightness cannot guarantee any sealant.
Criteria for the difference between double -glazed models
The number of glasses and cameras
- Single -chamber double -glazed window, the characteristics of which are dictated by the physical properties and thickness of the glass sheets (two of them), as well as the width of such a camera. A simple single -chamber double -glazed window is an ideal option for those who are trying to save. The price of such models is much lower than two -chamber, but it should be recognized that they are inferior in technical characteristics.
- Double -glazed window with two cameras. This block is composed of three sheets of glass and two interse glass chambers. The technical characteristics of two -chamber double -glazed windows with various equipment are markedly different. The variety of properties of glass layers and a different width between them affect the parameters of window systems.
- They also practice the production of window basics on order of 4 or more glass strata.
single -chamber, two -chamber and noise -insulating double -glazed windows
A substance filling the inter -stacket space
- the air is drained
- inert gas
- sixth -striped sulfur
Target purpose
Wheel -glazed windows of a public purpose
Standard single -chamber double -glazed windows that are not endowed with any special characteristics
Specialized double -glazed windows
One of the glasses of such blocks is usually distinguished among others with clearly positive features: improved thermal, insulating or strength characteristics. These systems are selected 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 with a film inside the double -glazed window.
Shock -resistant double -glazed windows
From several layers of triplex or glasses protected by the film, they withstand mechanical actions of impressive power. Even when broken, these double -glazed windows do not pose a danger (do not form sharp faces). The fragments do not scatter, but locally remain at the place 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 crypton or argon. Usually, to achieve the desired effect, one glass has enough, which has “special” technical characteristics in the kit. All the rest are standard. Two types of glasses with converted reflective characteristics are widely used that affect the increase in the heat -saving qualities of the double -glazed window:
- I-glass. Film -forming materials are applied to the glass plane by vacuum spraying, which create a “soft” protective low -emission layer that helps to reflect the heat wave from the surface of the window. The indicator of the emission of the surface (E) illustrates the tendency of the glasses to “beat off” warmly back into the building. E of standard glass is 0.83, and the energy -saving - 0.004. That is, the higher this indicator, the more heat energy goes through the windows. Energy -saving double -glazed windows will help reduce thermal “leakage” to 90%.
- For k-Stecle The presence of a “solid” coating from Indian Olovy oxides, which protects from the influence of infrared rays, is characteristic. In this case, strengthening thermal insulation is achieved by applying the protective layer with a pyrolytic method. The specificity of such a process is in highly termic effects on gaseous metal-organic compounds in an oxygen medium. The result of such an effect - the molecules of metal oxides create a precipitate on the plane of hot glass, sobbing into it.
Sun -windows
They are made of reflex glass with a reflecting effect. They protect the premises from the influence of ultraviolet radiation, on the principle of the mirror. For such purposes, hardened glass obtained during heat treatment is also popular. The glass base of the window from such material is characterized by improved strength indicators and wear resistance.
Frost -resistant double -glazed windows
They are characterized by a larger indicator of the dew point (-55 degrees) compared to conventional (-35 degrees) and energy-saving (-45 degrees). That is, fogging of frost -resistant window blocks occurs at a lower temperature.
Noise -screen double -glazed windows
As a rule, one of the two inter -stroke cavities of this model exceeds the other in width. The sound permeability is enhanced by the use of triplex glasses or glasses with insulation in the form of a resin layer.
Standard technical characteristics of double -glazed windows
What comparative characteristics are analyzed when choosing double -glazed windows suitable for a particular case?
- The thickness of the glass block
- Heat permeability
- Sound permeability
- The number of cameras
These values \u200b\u200bdetermine, by and large, the cost of the window. The characteristics of the most running models of double -glazed windows are collected in the table below:
Description of the structure 4-12-4 suggests that the configuration provides for the presence 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 chambers between them (12 mm and 6 mm).
Thermal characteristics of double -glazed windows are directly determined by the number of cameras and the thickness of the glass. The thinner the glass layer, the worse it holds heat. Thermotechnical characteristics are indicated in the column "heat transfer resistance"
