平开窗优点是开启面积大，通风好，密封性好，隔音、保温、抗渗性能优良。内开式的擦窗方便；外开式的开启时不占空间。缺点是窗幅小，视野不开阔。外开窗开启要占用墙外的一块空间，刮大风时易受损；而内开窗更是要占去室内的部分空间，使用纱窗也不方便，开窗时使用纱窗、窗帘等也不方便，如质量不过关，还可能渗雨。
The advantages of casement windows are large opening area, good ventilation, good sealing, excellent sound insulation, thermal insulation, and impermeability. The internally opened window cleaning is convenient; The outward opening does not take up space. The disadvantage is that the window width is small and the field of view is not wide. Opening an external window requires occupying a space outside the wall, which can easily be damaged in strong winds; However, opening windows inside takes up a portion of the indoor space, making it inconvenient to use screen windows. It is also inconvenient to use screen windows, curtains, etc. when opening windows. If the quality is not up to standard, it may also cause rainwater seepage.
推拉窗
Sliding window
推拉窗优点是简洁、美观，窗幅大，玻璃块大，视野开阔，采光率高，擦玻璃方便，使用灵活，安全可靠，使用寿命长，在一个平面内开启，占用空间少，安装纱窗方便等。消费者采用最多的就是推拉窗。缺点是两扇窗户不能同时打开，最多只能打开一半，通风性相对差一些；有时密封性也稍差。推拉窗 ：分左右、上下推拉两种。推拉窗有不占据室内空间的优点，外观美丽、价格经济、密封性较好。采用高档滑轨，轻轻一推，开启灵活。配上大块的玻璃，既增加室内的采光，又改善建筑物的整体形貌。窗扇的受力状态好、不易损坏，但通气面积受一定限制。
The advantages of sliding windows are simplicity, aesthetics, large window width, large glass blocks, wide field of view, high daylighting rate, convenient glass cleaning, flexible use, safety and reliability, long service life, opening in one plane, occupying less space, and convenient installation of screen windows. The most commonly used by consumers is the sliding window. The disadvantage is that two windows cannot be opened at the same time, only half can be opened at most, and the ventilation is relatively poor; Sometimes the sealing performance is also slightly poor. Sliding window: divided into two types: left and right, up and down sliding. Sliding windows have the advantages of not occupying indoor space, beautiful appearance, affordable price, and good sealing. Using high-end sliding rails, gently push for flexible opening. Paired with large pieces of glass, it not only increases indoor lighting but also improves the overall appearance of the building. The stress state of the window sash is good and not easily damaged, but the ventilation area is limited to a certain extent.