The double-glazed glass is, it is the one that 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, hermetically bonded along with special technologies.
Content
Changing the characteristics of the glass package entails the appearance of completely new properties of the window created on its basis. What does the manufacturer seek to buy a variety of glass windas?
Targets facing glassware developers
- Limit the "leakage" of heat through the windows, the same reducing the amount of payment for heating.
- Isolate dwelling from outsided noise. This is very relevant for buildings located near the transport highways, buildings, entertainment centers, etc.
- To warn attempts to vandalism and illegal invasion of private territory through windows. This is a priority task in arranging offices and public areas placed on the first floors of houses.
- Protect the rooms of buildings and their inhabitants from atmospheric influences (wind, cold, sun, etc.)
How is a glass unit?
It was previously agreed that the double-glazed window is a block consisting of several glass layers with a cavity between them and a remote frame around the perimeter. The emptiness of the frame is filled with special granules that collect excessive moisture. Moreover, and in the framework itself there are dehydration holes, the size of no longer the diameter of the moisture grunger. It is better if the frame is made of one curved profile than from the scattered parts. In this case, there are fewer joints and gaps that violate tightness. Relative impermeability is achieved with a variety of sealants. The chamber between the glass layers (there are several of them) filled with gaseous inert substance or dry air. The technical characteristics of glass windows with gas in the chamber are much better than the characteristics of the models with drained air. True, gas in such glass packages in 10 years will have to be renovated, because 100% tightness can not guarantee any sealant.
Criteria for distinguishing glass stack models
Number of glasses and cameras
- Single-chamber glass windowswhose characteristics are dictated by the physical properties and thickness of glass sheets (two), as well as the width of such a camera. A simple single-chamber double-glazed window is the perfect option for those who are trying to save. The price of such models is much lower than double-chamber, but it should be recognized that they are inferior to specifications.
- Double glazing with two cameras. This unit is composed of three sheets of glass and two intake cameras. The technical characteristics of two-chamber double-glazed windows with different sets are noticeably different. The variety of properties of glass layers and different widths between them are affected on the parameters of window systems.
- It is also practiced by the production of window bases under the order from 4 or more layers of glass.
single-chamber, two-chamber and noise insulating double-glazed windows
Material filling
- air dried air
- inert gas
- hexfelt sulfur
Target destination
Fiber optic plates of general construction purposes
Standard single-chamber double-glazed windows that are not endowed with any special characteristics.
Specialized glass windows
One of the glasses of such blocks, usually, is distinguished among others, explicitly 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, it is placed by film inside the glass package.
Fun-resistant double-glazed windows
Of several layers of triplex or glasses protected by film, withstand mechanical actions of impressive strength. Even when breaking, these double-glazed windows do not represent hazards (do not form sharp faces). Shards are not scattered, but localized remain in the place of damage.
Energy saving double glazing
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, a single glass has "special" specifications, in the kit. All other are standard. Two types of glasses with transformed reflective characteristics that affect the increase in the heat-saving quality windows are widely used.
- І-glass. Film-forming materials are applied to the glass plane by the method of vacuum spraying, which create a "soft" protective low-emission layer, which helps to reflect the heat wave from the surface of the window. The surface emission indicator (e) illustrates the tendency of glasses "beat" heat back into the building. E standard glass equals 0.83, and energy saving - 0.004. Those., The higher this indicator, the more heat energy goes through the windows. Energy-saving double-glazed windows will help reduce thermal "leakage" up to 90%.
- For k-glasses Characterized by the presence of a "solid" coating from indium-tin oxides that protects against infrared rays. In this case, the amplification of thermal insulation is achieved by applying the protective layer with a pyrolytic method. The specificity of such a process is in high-thermal exposure to gaseous organometallic compounds in an oxygen medium. The result of such an effect is the molecule of metal oxides create a precipitate on the plane of the hot glass, bearing in it.
Sunscale glass
Performed from reflector glass with reflective effect. They protect the premises from the effect of ultraviolet, on the principle of operation of the mirror. For such purposes, there is also popular tempered glass obtained during the heat treatment. The glass base of the window from such material is characterized by improved strength indicators and wear resistance.
Frost-resistant glass windows
They are characterized by a greater indicator of the dew point (-55 degrees) compared to conventional (-35 degrees) and energy-saving (-45 degrees). Those., Fogging of frost-resistant window blocks occurs at a lower temperature.
Noise protection glass windows
As a rule, one of the two integral cavities of this model exceeds the other width. The soundproof is intensified by the use of triplex glasses or glasses with insulation as a resin layer.
Standard glass specifications
What comparative characteristics are analyzed by choosing suitable for a particular glass case?
- Glass block thickness
- Heat permeability
- Soundproof
- Number of cameras
These are the values \u200b\u200band determine by and large, the cost of the window. Characteristics of the most running models of double-glazed windows are collected in the table below:
Description of the design 4-12-4 indicates that the presence of 2 glass sheets (4 mm each) with an interconnect chamber is provided with a combination of 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).
The thermal characteristics of the glass packs are directly determined by the number of chambers and glass thickness. The thinner the glass layer, the worse it holds the heat. Heat engineering characteristics are indicated in the "heat transfer resistance" column.
