Many people have the intuition that the thicker the aluminum door and window profile, the more secure it is; Some people also believe that the higher the wind pressure resistance performance level of doors and windows, the safer the home doors and windows. This view itself is not a problem, but it is not entirely reasonable. So the question arises: How many levels of wind pressure resistance performance do windows in a home need to achieve?

For this issue, it should be determined based on the actual situation. Because the wind pressure resistance level of doors and windows needs to correspond to the basic urban wind pressure, the wind load standard value should be calculated based on different landforms, installation heights, installation location coefficients, etc. Moreover, the terrain and climate environment of major cities in China are diverse, so the level of wind pressure resistance for doors and windows cannot be the same answer. However, one thing is sure. The more precise the anti-wind pressure details on the doors and windows are, the safer the doors and windows are, and the sense of security naturally increases.

1、 Wind pressure resistance on doors and windows

Wind pressure resistance performance refers to the ability of closed exterior (door) windows to withstand wind pressure without damage or dysfunction. The wind pressure resistance performance is divided into 9 levels, and the higher the level, the stronger its wind pressure resistance ability. It is worth noting that the wind pressure resistance performance level is not equivalent to the typhoon level. Wind pressure resistance level 9 indicates that the window can withstand wind pressure above 5000pa, but cannot simply correspond to the same typhoon level.

2、 How to improve the wind pressure resistance performance of the entire window?

The wind is the root cause of problems such as deformation, damage, air leakage, rainwater leakage, and sandstorms entering the house. When the compressive strength of doors and windows is insufficient, a series of door and window safety accidents may occur at any time, such as deformation of doors and windows, broken glass, damage to hardware parts, and falling window sashes. To ensure the safety of doors, windows, and homes, how should custom doors and windows improve their wind pressure resistance performance?
3、Generally speaking, the thickness, hardness, corrosion, and oxidation resistance of profiles are all related to the wind pressure resistance of doors and windows. In terms of aluminum wall thickness, according to the international standard for aluminum profiles, the minimum nominal wall thickness of door and window aluminum profiles should not be less than 1.2mm, and the normal wall thickness is generally 1.4mm or above. In order to reduce the risk of our own windows being blown away and scattered, we can inquire about the wall thickness of our store’s doors and windows (especially windows) products when purchasing. It is not recommended to purchase profiles that are too thin.

Also, pay attention to the hardness of aluminum materials for doors and windows. Taking 6063 aluminum material widely used in building aluminum doors, windows, and curtain wall frames as an example, the national standard stipulates that the hardness of 6063 aluminum profiles should be greater than 8HW (tested by a Vickers hardness tester). Only in this way can we better withstand strong wind and typhoon weather.

With the increase of the glass area of french window, the thickness of single insulating glass should also be increased accordingly, so that the glass has sufficient wind pressure resistance. So before purchasing, we need to do enough homework: when the area of the fixed glass of the french window is ≤ 2 ㎡, the thickness of the glass can be 4-5mm; When there is a large piece of glass (≥ 2 ㎡) in the french window, the thickness of the glass shall be at least 6 mm (6 mm-12mm).

Another point that is relatively easy to overlook is the pressing of door and window glass lines. The larger the window area is, the thicker and stronger the pressing line used will be. Otherwise, in case of typhoon rainstorm, the window glass will not be able to support due to insufficient wind pressure bearing capacity.

3. Pay more attention to these for doors and windows on higher floors

Many people are concerned that “the floor of their home is so high, should we buy a larger and thicker window series to ensure the strength of the doors and windows?” In fact, the strength of the doors and windows in high-rise buildings is related to the wind pressure resistance of the doors and windows, and the wind pressure resistance of the doors and windows is directly related to factors such as the adhesive connection at the corners of the profiles and the strengthening of the center, which is not necessarily proportional to the size of the door and window series. Therefore, improving the strengh.