Detailed comparison of top-hung windows, middle-hung windows, and lower-hung windows

Side-hung windows and sliding windows are the two most common window types in life. The emergence of hanging windows has provided developers and owners with diversified choices. So how much do you know about hanging windows? A hanging window is a window that opens along a horizontal axis, depending on the position of the hinge and rotation axis. Hung windows can be divided into three opening forms: top-hung windows, lower-hung windows, and middle-hung windows.
Because they are not familiar with national standards, many practitioners in the door and window industry refer to top-hung windows as lower-hung windows and lower-hung windows as upper-hung windows. In fact, the definition of the national standard is very regular. For external windows, the position where people stand on the indoor side and look at the hinge is the “up, down, left, and right” in the window name. So, let JoJo take you to get to know them~

Top-hung window

Introduction to the Top-hung window:
The hinge is installed on the upper side of the window sash and opens to the outside. This type of window generally has better rain resistance.


The externally-opening top-hung window is also a kind of hung window, which belongs to the casement window series like other hung windows.

The top-hung outer casement window is a combination of the top-hung outer window and the outer casement window that opens to the left or right. The originality of its opening method is the same as that of the inwardly-opening and inwardly inverted windows, but because the inwardly-opening and inwardly inverted windows are not popular, it has not been included in GB/T 5823-2008.
Although the casement top-hung window is derived from the window type such as the top-hung window, it is an independent window type like the top-hung window, and it is not a subordinate relationship.

Common skylights generally use top-hung windows. If the location is high and cannot be reached by human hands, electric remote-control top-hung windows can also be used.

Advantages of top-hung window:
01 Good ventilation. Since the upper-hung window can be opened to connect the indoor and outdoor spaces more comprehensively, at the same time, the upper-hung window can also prevent the strong wind from blowing directly on the human body, and has a certain wind resistance performance.
02 Good safety performance. Since the top-hung window is closed by its hardware fittings, it is not easy to open from the outside, and the anti-theft ability is very good. At the same time, ordinary side-hung doors are prone to encounters, and the use of top-hung windows can reduce encounters.

03 Easy to clean and hygienic. The upper-hung window can be inward or outward, and this structure makes it very convenient to clean.
04 Strong practicality. Reasonable placement of the upper-hung windows can avoid occupying indoor space. Even if you forget to close the windows, it is difficult for rainwater to enter the room when it rains.
05 Good sealing performance. When the top-hung window is closed, it can be fixed by door and window accessories, and its own structural characteristics make its sealing performance better.

Mid-hung window

Introduction of mid-hung window:
The so-called mid-hung window refers to a window composed of a window frame and a window sash fixed with glass. The feature is: the window sash is hinged to the middle of the window frame by a center hanger, and the floating stile is divided into two parts, and the upper part is fixed. On the window frame, the lower part is fixed to the window sash.。


Mid-hung windows are doors and windows for buildings that can realize the kinetic energy of window turning. It consists of a hinged window frame and a window sash fixed with glass. It is characterized in that the window sash is hinged to the middle of the window frame by a central hanger. The floating stile is divided into two parts, the upper part is fixed on the window frame, and the lower part Fixed on the window sash. In order to improve the sealing and shock absorption effect, an O-shaped sealing tape is arranged between the window frame and the window sash, and a K-shaped sealing tape is arranged between the window sash and the glass; in order to improve the rigidity of the middle-hung window, the window frame and the window sash profile are built in Reinforced steel. It can be turned freely, with good sealing, simple production, beautiful appearance, and high lighting efficiency. Suitable for all types of buildings.

01 Good ventilation performance. The middle-hung window has the largest opening area, which is almost equal to the area of ​​the entrance and exit windows, which can promote the circulation of the wind in the room very thick, which is beneficial to the air circulation in the house and has a strong circulation. Generally, the ventilation area of ​​the middle-hung window is a multiple of the upper-hung window, which is suitable for buildings that require ventilation in the area, such as shopping malls and bus stations. The middle-hung windows are more popular.
02 Strong practicality. It avoids taking up indoor space when the inner casement window is opened, and can avoid conflicts with indoor window items, such as hot water vapor, range hood, cabinets, curtains, etc., interference, and at the same time can avoid the danger of children meeting their heads.

03 Good sealing and heat preservation performance. Through multiple locking points around the window sash, the sealing effect and heat preservation effect of the door and window are ensured, and the sealing performance of the window can be greatly enhanced. The enhancement of the sealing performance is conducive to improving the heat insulation, sound insulation and dust resistance of the house. In addition, due to the special opening method of the mid-hung window, it can be made into a round window, which can also meet the architect’s certain facade requirements (but this type of window generally has a poor sealing performance).

Lower-hung window

Introduction of the lower -hung window:
The hinge is installed on the lower side of the window. The top-hung window opens towards the outside, and the lower-hung window opens towards the inside. This opening method is also called inverted. At present, the most commonly used in homes is inward opening and inverted. This type of window can not only hang downwards, but also realize internal flat opening.

Advantages of lower-hung window:

01 It does not occupy indoor space when it is inverted, the curtains can be opened and closed freely, and the lifting hanger will not conflict with the window sash;

02 When inverted, only close the window indoors before opening to the inward opening state, and the opening angle is small, even if you go out, you can switch to the inverted mode. While maintaining the fresh indoor air, you don’t have to worry about strangers entering the home. ;

03 When using the inverted state for ventilation in winter, the wind enters the room from the sides and the top, and will not directly blow to people, making you feel more comfortable;

04 Opening windows for ventilation in rainy days can also effectively prevent rainwater from entering the room;

05 The window sash can be opened inward to facilitate the owner to clean the outdoor glass

 

Conclusion:

After reading JoJo’s introduction to the suspended windows above, I believe everyone has an understanding of the suspended windows! Of course, to buy a suitable hanging window, not only looks at the appearance, but more importantly, choose the window type of the hanging window according to the actual needs. Different window types have different effects on actual use.