Acoustic Panels for a Data Centre

Data centres are built around performance, reliability and continuous operation. Servers, cooling systems, UPS equipment and mechanical services can run around the clock, creating a constant background of fan noise, airflow and equipment hum.

Inside equipment halls, that noise may be expected. The problem is what happens when it reflects from hard walls, ceilings and floors and begins to build up in adjoining occupied spaces.

Control rooms, staff areas, corridors and monitoring spaces can become uncomfortable places to work when sound is allowed to bounce repeatedly around enclosed rooms.

Acoustic panels and suspended baffles can help by absorbing reflected sound and reducing reverberant build-up in occupied areas. They are particularly useful where the goal is to improve comfort, speech clarity and the general acoustic environment around equipment halls.

However, acoustic treatment has an important limitation: it does not replace equipment noise control, engineering measures or hearing protection where noise levels are high.

For data centre projects, the best strategy is usually to treat the occupied areas around the equipment halls first while addressing major noise sources separately.

Data centres contain a high concentration of equipment designed to operate continuously.

Common noise sources include:

Individually, each source may seem manageable. Together, they can create a continuous broadband noise environment.

The problem is made worse by the construction of many technical spaces.

Data centres often include:

These surfaces provide very little sound absorption.

As equipment noise reaches the walls and ceiling, much of it is reflected back into the space. The result is a combination of direct equipment noise and reverberant sound that can make the environment feel significantly louder.

Reverberation is not the same thing as the original equipment noise.

It is the reflected sound that remains in the room after sound has reached hard surfaces.

In a control room or staff area, excessive reverberation can make normal conversations more difficult because speech competes with both the equipment noise and its reflections.

This can affect:

Even when the equipment itself cannot be made substantially quieter, reducing reflected sound can make occupied areas feel more controlled.

This is where acoustic absorption becomes useful.

Acoustic panels are designed to absorb sound energy rather than reflect it.

When sound reaches the panel, a portion of the energy is absorbed within the material. This reduces the amount of sound that continues circulating around the room.

In data centre environments, acoustic treatment can help:

This is particularly useful in spaces such as:

The objective is not to make the data centre silent.

It is to improve the acoustic quality of the spaces where people need to communicate and work.

The right product depends on the layout of the facility and the amount of available wall and ceiling space.

Wall-mounted acoustic panels can be useful in control rooms, meeting spaces and staff areas where walls are otherwise hard and reflective.

They can help reduce horizontal reflections between opposing walls and improve speech intelligibility.

Wall panels are particularly useful where:

Ceilings are often one of the largest uninterrupted reflective surfaces in a control or staff area.

Installing acoustic ceiling panels can provide broad sound absorption without taking up valuable wall space.

This can be particularly effective in rooms with:

Baffles can work well where the ceiling is exposed or contains a large number of mechanical and electrical services.

Because both faces of a suspended baffle are available to absorb sound, they can provide useful acoustic surface area while allowing access to overhead systems.

They can also be positioned around:

Any installation in technical areas should, of course, be coordinated with operational, maintenance and fire requirements.

This distinction is one of the most important things to understand when treating a data centre.

Acoustic panels reduce reflected sound. They do not stop noise being generated at the source.

If a cooling unit, fan or generator is producing excessive noise, acoustic wall panels alone will not solve that problem.

Source-control measures may include:

These solutions are typically assessed by an acoustic consultant or mechanical engineer.

Acoustic panels complement these measures by reducing the reverberant component of the noise once it enters an occupied room.

In simple terms:

Source control addresses where the noise starts.

Acoustic absorption addresses what happens after the sound enters the room.

Both may be required.

Data centre noise can sometimes reach levels where occupational noise exposure becomes a concern.

In those situations, installing acoustic panels should not be treated as a substitute for:

If employees are working near high-noise equipment for extended periods, the appropriate workplace noise assessment should be carried out.

Acoustic treatment may still improve the environment, but it forms only one part of a broader noise-control strategy.

For many data centre projects, the most effective starting point is not the equipment hall itself.

Instead, prioritise the areas where people spend the most time.

These may include:

Treating these occupied zones first can provide an immediate improvement in comfort and communication.

It also allows acoustic treatment to be positioned in areas where it is less likely to interfere with equipment access, airflow or maintenance.

Large server halls present additional challenges.

They contain dense equipment layouts, high airflow requirements and strict operational constraints.

Wall or ceiling treatment in these spaces may need to account for:

For this reason, acoustic products should not simply be added to an equipment hall without considering the wider engineering requirements.

In many projects, the best approach is to focus decorative or conventional acoustic treatment on adjoining occupied spaces while specialist engineering solutions address equipment noise inside the hall.

There is no single coverage rule for every project.

The quantity of acoustic treatment depends on:

A smaller control room with hard walls may require only targeted treatment.

A large operations centre may need a combination of ceiling and wall absorption.

Where the project has formal acoustic targets or significant noise exposure, an acoustic consultant should assess the space and determine the required treatment.

Data centres are technically demanding environments, so acoustic products must be selected with more than sound absorption in mind.

Depending on the application, the project team may need to consider:

The appropriate fire classification should be confirmed against the National Construction Code and the project's specific building classification and fire strategy.

Product documentation should also relate to the exact construction and installation proposed.

Several common mistakes can limit the effectiveness of an acoustic upgrade.

These include:

The strongest solution usually combines appropriate engineering controls with targeted room acoustic treatment.

Every data centre has a different operational layout.

The right acoustic strategy depends on where people work, where the noise originates and how sound travels between spaces.

For occupied areas, a combination of:

can help reduce reflected sound and improve comfort.

For equipment-generated noise, specialist source-control measures may also be required.

Considering both aspects from the beginning gives project teams a much clearer path to an effective solution.

Acoustic Panels Australia works with architects, builders, designers and commercial project teams to deliver acoustic treatment for technically demanding environments.

Our Australian-made range includes wall panels, ceiling products and suspended acoustic systems that can be incorporated into control rooms, staff areas and other occupied commercial spaces.

Our team can assist with:

Where equipment noise or occupational exposure requires specialist engineering, we can also provide product information to support the appointed acoustic consultant.

Data centres will always contain significant mechanical and equipment noise, but the spaces where people work do not need to feel excessively harsh or reverberant.

By adding sound absorption to control rooms, staff areas and adjoining occupied spaces, acoustic panels and baffles can reduce reflected sound, improve speech clarity and create a more comfortable working environment.

The key is to use acoustic treatment for what it does best: controlling reverberation, while using engineering measures to address excessive noise at the source.

Contact Acoustic Panels Australia today to discuss the acoustic requirements of your data centre project.