The advantages of open windows are the large open area, good ventilation, good sealing, and sound, heat, and impermeability. The open type wipe window is convenient; the open type open space does not occupy space. The disadvantage is that the window width is small and the field of vision is not open. Open the window to open to occupy a piece of space outside the wall, easy to damage when the wind blows; and open the window is to take up some of the interior space, the use of screens is not convenient, the use of screens, curtains, etc. is not convenient when you open the window , If the quality does not pass, it may also seep rain.
Open method
Sliding window:
The advantages are simple and beautiful, large windows, large glass blocks, open vision, high lighting rate, convenient glass cleaning, flexible use, safety, reliability, long service life, opening in one plane, less space, easy installation of screens, etc. At present, the most used is the sliding window. The disadvantage is that the two windows cannot be opened at the same time. At most, they can only be opened halfway. The ventilation is relatively poor; sometimes the sealing performance is also slightly poor.
Suspension type:
This is an aluminum alloy, plastic steel window that appeared later. It is a new form developed on the basis of a casement window. There are two ways to open it. It can be opened flat and pushed away from the top. When the casement window is closed, pushing out the upper part of the window can open a gap of about ten centimeters. That is, the window can be opened a little from above. The open part is suspended in the air and fixed with the window frame through hinges, etc. Suspension type. Its advantages are that it can be ventilated and it can be kept safe. Because of the hinges, the window can only open ten centimeters of seams, and it can't come in from the outside. It is especially suitable for use when nobody is in the house. Recently, this function has not only been limited to a flat open window, but also a sash window can be opened upright.
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