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Class M1
Rockfon Sonar®
Modular acoustic ceiling platform with a robust micro-textured surface, designed to meet the demands of diverse sector applications.
- Quality acoustics
- Durable
- Setup guidance
Overview
Combine creativity with durability. From schools to offices and public buildings, Rockfon Sonar delivers results with flexible formats and the powerful sound absorption of stone wool.
Experience the difference of Rockfon Sonar®
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Uniquely powerful.
With low embodied carbon and a stone wool core that can be endlessly recycled, Rockfon Sonar introduces reverberation control alongside natural fire and moisture resistance.
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Install your way.
A total of 16 edge-size combinations allow its integration into nearly any layout and system – from modular and stepped to monolithic-inspired designs.
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Confidently clean.
Rockfon Sonar's robust micro-textured fleece withstands vacuuming and damp cloth cleaning using diluted chemical solutions.
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Beyond absorption.
Choose the Rockfon Sonar dB range for supplementary sound insulation or Rockfon Sonar Activity for low-frequency acoustic absorption – all in the same high-performing fleece.
Case studies with Rockfon Sonar®
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Discover more case studies
Browse projects from around the world with optimised acoustic design featuring Rockfon solutions.
COPaG High School, Prague, Czech Republic
Ing. Jiří Tencar, Ph.D., ECOTEN s.r.o., 2025
Edges and sizes
Click the icons to view more details.
A15 edge - Visible grid
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| Dimensions | Recommended Grid | |
|---|---|---|
| 600x600x20 | ||
| 1200x600x20 |
Specifications
For more details about Rockfon Sonar® please download the product datasheet or contact us.
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WhiteNCS S 0500-N
No visible deflection in high humidity.
C/0N
Certifications
CE Mark
Cradle to Cradle Certified
Indoor Climate label
Class M1
Sound absorption table
| Practical Sound Absorption Coefficient (αp) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Edge | Thickness mm | Suspension height mm | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz | Sound absorption class | αw | NRC | |
| A15, A24 | 20 | 200 | 0.55 | 0.95 | 1.00 | 0.90 | 1.00 | 1.00 | A | 1.00 | 1.00 | |
| X | 22 | 200 | 0.55 | 0.80 | 0.90 | 0.95 | 1.00 | 1.00 | A | 0.95 | 0.95 | |
| D | 20 | 200 | 0.50 | 0.85 | 0.90 | 0.95 | 1.00 | 1.00 | A | 0.95 | 0.95 | |
| E15, E24 | 20 | 200 | 0.50 | 0.90 | 1.00 | 0.90 | 1.00 | 1.00 | A | 1.00 | 1.00 | |
| B, D | 20 | 20 | 0.05 | 0.25 | 0.70 | 1.00 | 1.00 | 1.00 | D | 0.55 | 0.75 | |
Installation videos
Need help or advice?
Have a question about this product or need guidance for your project? Send us a message and we’ll get back to you.
Interested in buying Rockfon Sonar®?
Get in touch with a local Rockfon office or find a distributor near you.