Acoustic Suspended Ceiling

WhisperCloud® is an acoustic hanging panel solution that suspends from ceilings to help control noise.

WhisperCloud is a tracking system used to enable tightly stretching fabric over an acoustic absorber on ceilings.

The panels are designed to provide noise control in large spaces that don’t allow for dropped ceilings or require additional sound treatment. The panels are suspended from the ceiling, providing acoustic absorption and an appealing spatial aesthetic.

Sustainable Acoustic Absorber

The CSR Martini dECO Quiet Board acoustic absorber is manufactured from thermally bonded polyester fibre with up to 80% recycled fibre content from post-consumer PET packaging. It has a Global GreenTag GreenRate™ Level A certification with a Global GreenTag Platinum HealthRATE™ certification and is therefore suitable for Green Star projects.

CSR Martini Global GreenTag Certifications

How It Works

A patented polymer tracking system enables tightly stretching our commercial grade fabric over the acoustic absorbers for wall panel solutions. See NRC ratings in the table below.

With 58 tracking profiles to choose from we are able to cater for any ceiling design situation. The most common tracks are for 12mm, 25mm and 50mm acoustic absorbers. We can work with any specification nominated by an acoustic engineer.

NRC Explained

To quantify our product as a commercial acoustic solution, each is tested and awarded an NRC (Noise Reduction Coefficient) rating. The NRC relates to the absorption effectiveness of the material, and is calculated by averaging how absorptive a material is at four different frequencies.

Our Whisper acoustic products are tested at 125hz, 250hz, 500hz, 1,000hz, 2,000hz and 4,000hz. Taking the average number, it is then applied to the NRC scale of 0 to 1. A perfectly sound absorptive material achieves a 1, whereas a 0 indicates no absorption.

Made In Sydney

There are no standard or pre-fabricated panels as we assemble and install onsite with our team of experienced installers.

We print designs onto a flame retardant fabric with a modified weave, allowing air to freely pass through, whilst maintaining printed integrity. Choose designs from our vast print library or work with our team of in-house designers to supply your own.

Suspended Ceiling Specs & Detail

The acoustic absorbers are manufactured from thermally bonded polyester fibre with up to 80% recycled fibre content from post-consumer PET packaging such as empty drink bottles.

  • GreenTag certified GreenRate Level A
  • Environmental Product Declaration (EPD) Certified in accordance with ISO 14025
  • Product Health Declaration (PHD) certified
  • Declare certified
  • Suitable for Green Star™ projects
  • No red list chemicals are present
  • No ozone-depleting gases are used during the manufacturing process
  • Safe, non-irritant, non-toxic, and non-allergenic
  • Products are 100% recyclable
  • High reuse potential
  • Tested to AS ISO 9705 Corner Burn in accordance with AS 5637.1
  • Group 1 SMOGRA not more than 100m2 /s2 x 1000
  • AS 1530.3
  • Ignitability: 0
  • Spread of Flame: 0
  • Heat Evolved: 0
  • Smoke Developed: 0-1
  • Class A fire rated – Tested as a stretched fabric panel assembly according to ASTM-E84 and ASTM-E2573 fire test standards.
  • 100% Post-Industrial recycled content in most track profiles.
  • 100% Recyclable
  • PVC Free is available in select tracks

A flame retardant fabric with a modified weave is used for our art, allowing air to freely pass through, whilst maintaining printed integrity.

Ask our team for more information, specific to your project requirements.

There are no standard or pre-fabricated panels as we manufacture based on instructions from designers, architects or acoustic engineers.  This may include determining a certain amount of meterage needed to reduce noise levels to required specification.

Due to the increased tension that results from mid-air suspension, we use aluminium reinforcement on each panel.

WhisperCloud panels are supplied fully assembled and ready to hang, just like normal artwork.

The panels are hung from the ceiling using a wirelock mechanism, with the number of wirelocks used relative to the requirements of each panel. Larger, heavier panels use more wirelocks due to the increased weight stress.

1) Ceiling material (e.g. Gyprock, brick, timber etc.)
2) Ceiling penetrations (e.g. powerpoints, smoke alarms, light switches etc.)
3) Site accessibility
4) Ceiling height (is a forklift or scaffolding needed?)
5) Working hours for installation (day/night?)

It is crucial that these details are communicated early on in the process in order to minimise complications during engineering and installation.

Technical Overview & Drawings

WhisperCloud technical overview
WhisperCloud technical profile
Polymer track stretching system (bold lines)
Absorber (curved lines)
Fabric (dashed lines)

Get in touch with the Materialised team to get more information for your next acoustic ceiling project.