For several decades, plastic windows and doors have become widely used in most modern residential, office and industrial facilities. Plastic structures have firmly taken the place of the main type of partitions from the environment for creating windows / doors in the house and apartment.
Along with their popularity, many say that metal-plastic windows have many features and controversial points. Well, let's figure out all the intricacies of these simple and technological mechanisms. Dispel myths about plastic windows.
See also: Rating of the best manufacturers of plastic windows in 2017.
Myth 1. The best manufacturer of plastic windows - Germany
Partly. It is important not in which country metal profiles and double-glazed windows are made, but by what technology and on the basis of what materials. And yet, it all depends on the compliance of the manufactured product with international and European standards. The adapted standards for regions with low temperature conditions allow the end user to obtain plastic windows with a guarantee of operation up to 10-15 years.
Myth 2. Plastic windows are solid chemicals that are harmful to humans
In this case, look around you and name the number of plastic items that are around you. All of them are harmful, they must be thrown away urgently!
The very technology of manufacturing a plastic metal profile for the frame and sashes is protected by quality certificates. They guarantee safety and harmlessness to humans. Chemical emissions as such are simply absent.
Myth 3. Are they perfectly silent?
No. As you know, sound is characterized by such a parameter as frequency. Roughly speaking, this is the rate of changes in air regions: rarefaction and compression. The speed of movement of such areas is the frequency. As a result, high frequencies (very fast vibrations of areas) of sound cannot “press” enough on the glass to transfer the compression into the chamber and further into the room. Therefore, plastic windows provide excellent protection against high frequencies (squeak, bird voices, meows, etc.) and absorb little low-frequency sounds (the sound of a jackhammer, compressor operation, etc.).
Myth 4. The number of chambers and profile thickness - the more the better!
This is one of the main misconceptions. For a double-glazed unit, 2-3 chambers are standard (4 + 5/7 + 4). Believe me, this is enough to keep the heat in the room. Glass thickness 4–5 mm. The profile is a little more complicated: it all depends on the quality of the material from which they are made and the number of partitions (chambers). The standard for best PVC profile there are 4–6 chambers - this makes it possible to more expediently distribute air flows in the middle and maintain a constant temperature, which affects thermal conductivity.
Myth 5. Use of vacuum in construction
This sounds more like a marketing ploy from sellers than true. Conventional vacuum is understood as an area of significant rarefaction of air or its absence.If we created a vacuum of such a level as a physical vacuum, then the glass of the package would simply crumble into small pieces. But still, it must be said that the technology of manufacturing a glass unit provides for the presence of a small vacuum to create a low pressure area in the middle of the package. This allows you to keep the glass in the package: "pull" them into the camera.
Myth 6. Why do plastic windows "cry"?
Because the lack of banal airing is to blame. For example, they installed a new balcony frame made of metal profiles, and the neighbor still has an old one made of wood and 3-mm glass. In the morning we woke up and saw that our windows on the balcony were covered with drops of moisture, and the neighbor was doing well. How so? It's simple. Plastic windows ensured a significant tightness of the balcony, where air from the outside could not enter and there was no circulation of air masses. As a result of equalizing the temperature outside and inside the balcony, the difference in moisture condensed on the glass.
In order to avoid such situations, it is recommended to air the premises 2 times a day for 5-10 minutes.