Classification of Acoustical Ceilings

Acoustic ceilings can be used in concert halls, theatres, recording studios, studios, listening rooms, conference rooms, gymnasiums, exhibition halls, dance halls, KTV rooms, home video halls factories, quiet rooms, courtrooms, lecture halls, interrogation rooms, and other acoustic places of sound absorption, textile factories and noise exceeding the standard plant and large public buildings of sound-absorbing wall panels, acoustic ceilings are in greater demand. So what are the classifications of acoustic ceilings? Here we briefly analyze them.

Here is the content list:

• By material of manufacture

• Classification by environmental class

• Classification by structure

By material of manufacture

Wooden acoustic ceilings are exquisitely processed according to acoustic principles and are made up of finishes, core materials, and acoustic mats. Wooden acoustic ceilings are divided into two types: grooved wood acoustic panels and perforated wood acoustic panels.

Mineral wool acoustic ceilings have a wide range of surface treatments and the panels have a strong decorative effect. The surface is treated with knurled mineral wool acoustic ceilings, commonly known as "caterpillars", which are covered with holes of varying depth, shape, and diameter.

Fabric acoustic ceilings - the core material is centrifugal glass wool. Centrifugal glass wool has long been used as an acoustic material throughout the world and has proven to have excellent sound absorption properties.

The fire performance of sound-absorbing materials in theatres, dance halls, auditoriums, multi-purpose halls, gymnasiums, and other places where the public gather is crucial. Polyester fiber acoustic ceilings have been tested by the Fire Test Centre for fire protection parameters and the results show that they have good fire protection properties.

Classification by environmental class

Acoustic ceilings are installed on a substrate that contains formaldehyde emissions according to the material of the substrate to distinguish the grade, a total of E0, E1, and E2 levels, of which E0 level is the highest level of environmental protection, E1 followed by E2 formaldehyde emissions are relatively the highest. If used directly in the installation of acoustic ceilings, E1 grade is qualified.

Classification by structure

The acoustic ceiling is made of a porous (or fibrous) material that is shaped and cut into a conical or acoustically split body that is rigid and does not deform. It is suitable for strong airflow environments, mainly for high-quality anechoic rooms, where the absorption of low frequencies is more effective, eliminating standing waves and achieving the requirement to eliminate echoes, with a low cut-off frequency absorption coefficient of more than 0.99.

In addition to having all the functions of a flat acoustic panel, the diffuser acoustic ceiling can also conduct sound waves at different angles through its three-dimensional surface, eliminating blind spots in the diffusion process, improving sound quality, balancing the acoustics, thinning out heavy sounds, weakening highs and compensating for lows.

The structure of the aluminum honeycomb perforated acoustic ceiling is a perforated panel with a perforated back panel, which relies on a high-quality adhesive bonded directly to the aluminum honeycomb core to form an aluminum honeycomb sandwich structure, with a layer of sound-absorbing fabric applied between the honeycomb core and the panel and back panel. As the honeycomb core inside the aluminum honeycomb panel is separated into numerous closed chambers, the airflow is prevented and the sound waves are obstructed, increasing the sound absorption coefficient (up to 0.9 or more) and increasing the strength of the panel itself, making it possible to achieve larger dimensions for a single panel, further increasing the freedom of design.

Suzhou Yuheng Textile Co., Ltd. has developed a wide range of different acoustic ceiling and carries out extensive testing before leaving the factory to ensure quality. If you are in the acoustic ceiling business, consider using our cost-effective products.