Two-folding plastic windows does not outwardly different from wood, we're used to. However, before ordering such a window to decide whether you want to open one of the wings, or you wish to have a window with two opening doors. Tri-plastic windows, as well as Butterfly, her appearance also did not differ from the timber. By ordering this screen, you also need to decide how much of it you want to be opening the valves: one, two or three. In this case you need to specify how these valves will be located. Naturally, the box will be more expensive if it has more opening the valves. While on the other side of the window with a large number of the valves, which can be accessed much more conveniently myt.Klassifikatsiya plastic windows on the type of opening. Plastic windows are classified by type of opening for the following types: rotary windows, the way to open these boxes - the traditional, tilt windows - the name of the windows that they open at the top (ie, folded).
To the outer glass of the window to get easy (for example, if the need to wash it). Positive in these screens is that, for their opening does not need much space. swing-out windows - these windows are open to both traditional and folding method. Position of the handle is usually chosen option open. Turning position, in which the handle is turned at a right angle, gives air to reach the back of the glass doors, and provides unobstructed airflow. If you need to get a folding position of the sash, it is necessary to turn the knob up. This position is very convenient for ventilation, especially in winter. At the same time the drafts are eliminated due to the fact that the fresh and cool air comes out of the window above. Swing-out windows because of their convenience are the most popular among all types of windows blind windows - these windows, as the name implies, do not open at all. Typically, such a window as a whole, nobody cares. Deaf usually do one or two-leaf shutter windows, or one or two doors tricuspid window (in this version, which opens valve located in the center window and blind doors - on the edges). However, this window is not very easy to clean.

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