What is a double -walled window?
Double-glazed windows are among the types of construction windows that have unique properties due to being equipped with optimal materials in construction, including UPVC and double-layered glass.
☑️ Brief History of Double Window Window
As you know, glass is one of the oldest man-made artifacts. If we trace the first use of glass, we reach about 3000 years ago in the land of Babylon; But it is interesting to know that the idea of double-glazing glass in order to optimize it has a not so long history of 200 years. In 1865, the owner of a glass shop in New York, USA, with his initiative and creativity, obtained the privilege of registering and using double-glazed glass.

How is double glazed glass made?
It is interesting to know that the process of making all kinds of double-glazed glass is very interesting and the process starts with large glass panels in the production line, which enter a special level, at this stage the dimensions The glass is processed by the software so that the cutting is done accurately and without manual error. After cutting, the glasses are hardened with water, and then the frames between the two walls are cut to fit between the two glasses. Next, the inner space is filled with moisture-absorbing materials, special adhesives are applied to the two edges of the frame, and sealing is done. The glasses are transferred to the press machine and at this stage, argon gas is injected, then the glass is filled with polysulfide glue by the machine for secondary sealing. At the end and after production, random samples are taken from among the glasses and standard tests of fogging, stability in high humidity, determination of dew point, measurement of thickness, distance and dimensions are performed and what is of high quality They supply to the market.
☑️ Overall familiarity with the features of double -walled windows
As it will be pointed out in more detail in the rest of this article, the double-glazed window is made of double-glazed Bafrim or UPVC frame. UPVC is an alternative to metal and non-metal alloys in the construction of doors and windows, and its distinctive features include light weight, very high resistance to atmospheric changes, and non-flammability. The basis of double-glazed windows is based on double-glazed glass. In this type of window, two or more layers of glass are separated from each other with the help of a spacer band placed around them, and the space between the glasses is filled with air or argon gas or SF6. The spacers are basically made of aluminum, which is filled with silica gel material, which is a kind of moisture absorber and absorbs the moisture of the air between the two glasses. These mentioned features are also among the most important reasons for the choice and popularity of this type of products in the construction market.
☑️ PVC double -walled window
In general, it can be acknowledged that the material of this type of double-glazed windows is uPVC insulating profiles, which are among the most popular double-glazed windows. It is interesting to know that these windows are suitable for all kinds of climates and are made and produced in various models based on the type of opening and the type of fittings in different colors. Of course, it is worth mentioning that types of double-glazed windows with uPVC profile can be produced in specific and standard dimensions, and its production in larger dimensions is limited. UPVC is made of plastic and is one of the products of the petrochemical industry, which is a combination of this material with a type of lubricant. ability to bend and flex; Therefore, windows produced from standard upvc profiles will be completely normal and insulated windows, provided that they are designed and built in a completely standard and principled way. Standard in the sense that double-glazed windows and suitable and strong fittings are used in their construction, and the steps of measuring and installing the window are correctly implemented. Due to their advantages, PVC double-glazed windows are among the most widely used and popular types of double-glazed windows, which have recently been widely used in the construction industry. Therefore, regarding the advantages of this type of windows, we can admit that:
• UPVC windows are insulated against cold, heat and sound.
• These types of windows are light weight and affordable.
• UPVC windows have variety in designs and colors.
• Non-flammability and ease of cleaning are also other advantages of this building material.
• UPVC windows are beautiful and have a special effect.
☑️ Aluminum double -glazed windows
Aluminum double-glazed windows are made of aluminum profiles and are mainly used to have a standard insulating window of a special type of aluminum with an insulating blade in it that prevents the communication of outside and inside air. Since aluminum metal has high conductivity, despite this insulating polyamide blade in the profile, the conductivity of aluminum metal is lost, and for this reason, this type of double-glazed window is known as thermal break double-glazed window. It should also be mentioned that due to the high moment of inertia (the amount of stress and bending deformation of a beam or profile) in aluminum double-glazed windows compared to UPVC double-glazed windows, in the construction of large windows, it is necessary to Aluminum double-walls should be used. Regarding the advantages of these types of windows, it can be said that:
• In terms of moisture resistance, aluminum windows can compete with stainless steel or fiberglass.
• Most aluminum frames are sold with an oxide coating, and it is interesting to know that this coating is able to eliminate the problem of corrosion and perforation of the window frame, which causes the frame to be damaged by moisture and carelessness in its maintenance. It may take place, be safe.
• Aluminum frame is more resistant than frames made of forest wood or iron and copper and also cheaper.
• Aluminum double-glazed windows are much lighter than normal door frames; Therefore, the natural light weight of these doors makes it easier to install.
• It is easier to maintain and protect aluminum double-glazed windows. Also, there is usually no need for regular painting or painting to maintain the appearance of the aluminum surface.




