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Rock wool is better than glass wool for sound insulation?

May ,07 2022

Which sound insulation effect is better, rock wool board or glass wool? Maybe you are worrying about whether the soundproof wall is made of rock wool or glass wool. To be more specific, maybe you are worrying about the soundproof decoration of the KTV compartment. You don’t know which soundproof material to choose and how to better achieve sound insulation. At the same time, the fire safety and sound insulation performance are guaranteed to be lasting and effective. As the owner of a KTV room, who doesn't want their customers to experience a noise-free K-singing environment, relax and spend a pleasant weekend, doing business depends on "returning customers", details and quality. I believe that many people understand this truth, but it is still a little difficult to do. After all, it still depends on practice.

Rock wool board has strong high temperature resistance

Which is better for sound insulation, rock wool or glass wool? Which is more suitable for the sound insulation and noise reduction decoration of KTV room? To answer the above two questions, we still have to go back to the basic knowledge of the raw materials and production of rock wool and glass wool. It is necessary to know that the fibers of glass wool are relatively slender, and the distribution is relatively tight and uniform. In general, glass wool is stronger and less prone to loosening, but this is also relative. Compared with glass wool, the fiber of rock wool is thicker and shorter, which is why rock wool needs higher density and thickness to be formed by the bonding effect of the binder, and the rock wool board is not so strong, generally It is necessary to increase its strength by increasing its bulk density and thickness, so the density of rock wool is generally larger, and it looks thicker and heavier.


It is understood that under the condition of the same density and thickness of rock wool board and glass wool, the sound absorption and sound insulation effect of glass wool material in the newly installed KTV room is about 1.2 times that of rock wool. You can see the difference between the two. But in general, rock wool is more suitable for sound insulation, and glass wool is more suitable for sound absorption. The question is, rock wool or glass wool, which is more suitable for noisy places such as KTV karaoke halls, dance halls, cinemas and recording studios? The answer may make you unbelievable. Glass wool uses its sound-absorbing properties to make sound insulation walls to achieve sound insulation effects. There are also direct sound insulation through high-density glass wool. There are many methods and many materials available.

Glass wool board has high sound insulation performance

For comparison, the difference between rock wool board and glass wool is that both rock wool and glass wool are Class A fireproof materials, both of which are fibrous inorganic materials, and the fibers will fall off. Relatively speaking, rock wool will have more More dust is generated, and glass wool has formaldehyde-free and environmentally friendly glass wool, which is formaldehyde-free and has less dust, which is very friendly to construction workers. In terms of high temperature resistance, glass wool can withstand high energy of about 300 degrees to 400 degrees, and rock wool can reach about 1000 degrees. In general, rock wool is more suitable for sound insulation materials, and glass wool is more suitable for sound absorption materials, but in practical applications, it is a little more complicated. For construction projects with high design requirements and high environmental requirements, sound insulation walls are more likely to be used. Use relatively friendly glass wool.