The Use of Perforated Materials Continues to Manage Acoustics in Open Environments

Advantages and Applications of Acoustical Management

Perforated metal is an extremely versatile material. Always popular in spaces such as clean rooms and science labs, the trend is shifting to include aesthetic and acoustical uses, as well. Providing excellence in form and appearance, perforated materials’ advanced sound absorption qualities make it ideal for creating a more pleasant work, education or retail environment. 

The multiple advantages that come from using perforated materials, from aesthetics and design versatility to lasting functionality and structural strength and integrity, contribute to making perforated materials an excellent choice for acoustical management, as well. 

When deciding which perforated material is best for your particular application, it’s important to keep in mind that there are many materials suitable for acoustic management. Aluminum and stainless steel are the two most common choices, followed by Inconel or titanium alloys. All of these materials retain excellent strength, even in minimum thicknesses and width perforation.

In addition, there are many options for hole shape, pattern and size. Although round holes in staggered patterns are the most popular, it all depends on what design is desired. Holes are generally smaller in noise control applications and a key rule to remember is: hole diameter should never be less than the thickness of the material.

More broadly speaking, the shape of the metal sheet itself has a significant impact. For example, in acoustical applications, the metal is often bent or corrugated as opposed to flat. These varied shapes not only lend visual interest, but they can also serve to further deflect or otherwise manage noise.

Aside from design and form, perforated materials can be used in two completely different ways in acoustical applications: Sound Transparency and Tuned Resonant Absorption. In Sound Transparency, the perforated metal is used as a protective or decorative covering for some special acoustical material; that material may be designed to either absorb sound, or to reflect or scatter sound in a special way. In Tuned Resonant Absorption, instead of allowing all sound to pass through, the perforated metal takes an active part in determining which waves of sound are absorbed.

With its tremendous versatility, perforated materials serve markets that demands a more pleasant environment in which to work or learn, which includes acoustical management. Extremely effective in sound abatement, perforated metals offer the most effective and efficient solution for these commercial architecture applications. With so many options to consider, it’s important to find out which custom design and material is right for you. Check with your local perforator expert and get exactly what you need.