If you want to install a plastic window in your house, then you should know that you need to initially choose a profile from which the window will be made.
Then you need to figure out what the double -glazed window will be, more precisely, how many glasses it will contain. So, it depends on the double -glazed window how warm it will be in your house, quietly and calmly. Usually, one glass is installed in those windows that are not related to the apartment as such.
That is, if you have a balcony, then when it is glazed, one glass is perfect, not even a double -glazed window. The only thing that you live on the top floor, and there are no high-rise buildings nearby, then we would advise you to think that the winds can break your balcony, or do something with the windows, even though such glass can be Strong enough.
If you think that one glass will be not enough, then think about the double -glazed window. A single double -glazed window is perfect for the balcony, because in winter people do not really think that the balcony can be warm.
You yourself understand that no one is sleeping on the balcony, and no one works. In this regard, as such, there is no need for its insulation or glazing. Although, they glance balconies precisely so that the apartment becomes as few drafts as possible. Do not forget that in apartments they advise you to put either a double or even tripl packet.
It is clear that the larger the double -glazed window, the harder it is. By the way, due to this you need to take the profile as high as possible. Imagine that under the weight of the double -glazed window, the metal profile itself can be deformed. After all, because of this, you will have to pay money again for a new window, or for the repair of the old.
Do not forget that adequate companies that are engaged in the manufacture of plastic windows, or selling them, should give a guarantee on the window itself. Moreover, this guarantee should not be a month or a year, but at least 3-7 years. After all, they should be as confident as as possible as the product that they distribute.