It's no secret that for most people, buying a property is a big deal and a lot of effort. Whether it's for investment or personal use, you need to think twice.
I often listen to the suggestion that when choosing a room, you should avoid choosing specific floors such as the 1st floor, 3rd floor, 10th floor, 17th floor, 24th floor, 31st floor, top floor and equipment floor. The first floor is located low, and the top floor is prone to large indoor temperature differences due to seasonal changes, and may face water leakage problems; On the equipment floor, noise, vibration or radiation may affect the quality of living.
So, why should the 3rd floor, 10th floor, 17th floor, 24th floor, 31st floor and other floors not be purchased? The salesperson explained that these floors may seem fine at first, but in fact they may be hiding long-term problems that go unnoticed.
Channel steel layer
Many real estate salespeople believe that specific floors such as the 3rd, 10th, 17th, 24th, and 31st floors are the so-called "channel steel layer".
So, what is a channel steel layer?
Channel steel is a steel material that resembles a groove in shape. In construction, channel steel layers refer to those floors where holes are drilled and channel steel is placed in the corresponding floors of the building to ensure the stability of the construction slabs during construction. These dimensions play an important role in the structure of the building, and their importance cannot be underestimated.
First, there are potential safety hazards
Due to the unique nature of the channel layer, there are several safety issues at this level.
For example, in the event of an earthquake, typhoon or other natural disaster, the channel steel layer is particularly susceptible, which can further affect the stability of the entire building.
Building materials can deteriorate over time, which makes it easy for cracks to appear in channel layer walls, which can not only lead to water leakage in the wall, but also pose a safety risk.
Second, it is easy to seep water and poor waterproof
The channel layer contains pores, which can adversely affect the building structure. For example, there are challenges when installing water pipes and electrical wiring, which can lead to water seepage and short circuits later if these lines are not adequately protected.
In addition, the channel steel layer is set parallel to the exterior wall of the building, which may lead to insufficient waterproofing measures for the exterior wall and reduce the waterproofing efficiency. In rainy days, rainwater is easy to seep into the wall through the channel steel, which will cause problems such as water seepage and mildew in the wall.
3. There is noise pollution
In comparison, compared with other floors, the channel steel layer is slightly less sound insulation and more susceptible to external environmental noise.
These sources of noise may include shops below, nearby roads, or public transport networks. Although the decoration conditions are the same, the noise of the channel steel layer is generally higher than that of other floors. While this difference is not usually seen as significant, it can be a deciding factor for those who sleep poorly.
In addition, the channel may wobble or creak when someone walks on it. The smaller the size of the channel, the more noticeable this shaking sound will be. However, given the large size of the channel used in current buildings, this problem is usually not too prominent.
How to tell where the channel layer is?
1. Fixed floor
Most channel layers start at the 3rd floor, and then add one layer every 7 layers, i.e., at the 3rd, 10th, 17th, 24th, 31st floors, etc.
2. Judge by appearance
The channel steel layer includes both horizontal and longitudinal channel steel, which can be roughly judged from the appearance of the building, and some related traces can be found on closer inspection.
3. Observe the internal structure
It can also be judged by inspecting the internal structure of the building, and in general, traces of channel steel can often be observed in parts such as structural columns and beams.
4. By asking
If the above methods still do not determine the location of the channel layer, consider consulting an architect, contractor, developer, or salesperson. These professionals usually have an in-depth knowledge of the building structure and can provide relevant and useful information.
The presence of channel steel layers in houses may endanger the safety of residents to a certain extent. In addition, these layers are more susceptible to problems such as water leakage, moisture, and noise, which in turn can affect the comfort of living. Especially on the 3rd, 7th, 10th and 17th floors, there is a high probability of channel steel layers. Therefore, it is advisable to avoid buying properties on these floors when buying a home.
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