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Sound-absorbing flooring is expected to emerge

2021-04-19

Sound-absorbing flooring is expected to emerge

At present, China does not have product standards for silent floors. The Chinese Academy of Forestry's Timber Industry Research Institute organizes domestic related flooring companies and testing organizations and is working on the development of the industry standard "Testing the performance of wooden muted floors." Only by formulating a comparatively scientific detection method can the effectiveness of wood floor noise reduction and noise reduction be clearly established.

The floor is not only more attractive sound-absorbing eye. It is understood that sound-absorbing flooring is a new type of floor in recent years, the price per square meter ranging from tens of dollars to several hundred dollars, the material mostly in cork, PVC, etc., when the business in sales Most of them strongly promote their sound-absorbing effects and try to attract consumers' attention.

Focus: Sound-absorbing flooring is expected to emerge in the flooring industry. In a floor sales area, the reporter saw a business owner posted an eye-catching slogan: "Cork flooring sound-absorbing, sound insulation, new arrival, 320 yuan / square meter." A staff member told the reporter that the brand's sound-absorbing flooring has a three-layer structure and the middle layer is a density board. The outer surface layer and the bottom layer are all made of oak bark. Pressing the outer surface layer with a finger feels soft. According to the staff member, it is precisely because the flooring material is soft and the noise emitted on the top is small, so it can play a role in sound absorption and sound insulation. However, how can the cork flooring be able to play a sound effect? ​​The staff is vague.

The introduction of sound-absorbing flooring by another shop in the floor sales area seems to be more convincing. The shop's staff gave reporters samples of sound-absorbing flooring and promotional brochures. The reporter saw the propaganda coloring page stating that the brand's flooring is from France. It is made of a plastic material that is soft and has excellent sound insulation properties. It can reduce noise by 19 decibels. Compared to other hard floor materials, it can reduce by 8 to 8. 10 times walking noise. However, what testing organization did the data come from and what method was used to test it? The staff member refused to answer these questions.

The reporter consulted six or seven flooring companies and found that most manufacturers could not provide specific testing data for sound-absorbing flooring. Although only one company can provide relevant data, neither the name of the testing organization nor the measurement method is clearly stated.

Sound-absorbing flooring calls for product standards to be established Because of the lack of sound-absorbing effects of flooring, many consumers are interested in sound-absorbing flooring, but they are still skeptical. The consumer, Ms. Yan told reporters that since there were elderly people and children at home, a cork sound-absorbing floor was paved a few years ago. Compared with other types of flooring, it feels more comfortable, but the sound absorption effect is not obvious. The reporter asked several consumers who bought floorboards. Most of them think that sound absorption and sound insulation are the selling points of floor manufacturers' propaganda, and sound-absorbing floors are suspected of being over-hyped.

Sound-absorbing flooring has a certain market demand in the country. However, there is no clear statement as to what extent the floor's silent performance can be called a silent floor. In order to regulate the market, we must first establish a scientific detection method, and then formulate the corresponding product standards.

It is understood that in the forthcoming "test method for the detection of the performance of a wooden mute floor", the definition of a silent floor is: a type of functional floor that can reduce the noise generated when a person walks on the floor. It is mainly based on wood materials, through the processing of the substrate, using a special structure or the use of soft wood, etc. to obtain a good noise reduction. After the "Woody Silent Floor Performance Test Method" was officially released, the performance of the Silent Floor can be evaluated with intuitive data.

"Testing methods for the performance of wooden muted floors" is intended to stipulate that the sound generated by free-falling balls hitting the floor is used to simulate the sound produced by people walking on the floor. The noise generated by a person walking on the floor is called a crash sound, and the noise formed in the adjacent downstairs space is called a crash sound insulation. The noise performance of the floor is evaluated by the impact sound and impact sound insulation improvement values, that is, the smaller the impact sound, the greater the impact sound insulation improvement value, the higher the floor silence performance; the greater the impact sound, the impact sound insulation The smaller the improvement, the lower the floor's silence performance.

At present, at least dozens of flooring companies in China are involved in the silent floor market. Although the production of silent floors is still relatively limited, the development momentum is good. It is of great significance to formulate and improve a sound floor standard as soon as possible, in order to standardize the silent floor market, protect the interests of consumers, and promote the development of the quiet floor industry. However, the “Test Method for the Performance of Wood Silent Floors” is limited to measuring the silent performance of wooden floors and does not involve the detection of other properties. The standards for silent floor related products still need to be further improved.


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