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Class M1
Rockfon® Koral
Acoustic ceiling tiles with a micro-textured surface – part of the Core White range of solutions for standard applications with a wide selection of formats.
- Noise absorbent
- Durable
- Setup guidance
Overview
Confidence in every space. Rockfon Koral pairs the acoustic performance of stone wool with a subtly-textured surface that brings a clean, elegant finish to any ceiling.
Experience the difference of Rockfon® Koral
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Uniquely powerful.
With powerful stone wool sound absorption and A1 fire classification, Rockfon Koral supports spaces in achieving optimised indoor quality, safety, and lasting performance.
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Textured versatility.
Available in a wide choice of demountable formats for semi-concealed and visible designs in a micro-textured surface that reduces glare and enhances visual harmony.
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Everyday reliability.
From offices to classrooms, Rockfon Koral ensures reliability – day after day, project after project – supporting spaces where comfort and function go hand in hand.
Case studies with Rockfon® Koral
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Discover more case studies
Browse projects from around the world with optimised acoustic design featuring Rockfon solutions.
Pontypridd Riverside Development, Pontypridd, United Kingdom
Darnton B3 Architects, 2025
Edges and sizes
Click the icons to view more details.
A15 edge - Visible grid
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| Dimensions | Recommended Grid | |
|---|---|---|
| 600x600x15 | ||
| 600x600x20 |
Specifications
For more details about Rockfon® Koral please download the product datasheet or contact us.
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WhiteNCS S 0500-N
No visible deflection in high humidity.
C/0N
Vacuum
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 | 0.80 | 1.00 | 0.90 | 0.95 | 0.85 | A | 0.95 | 0.90 | |
| A15, A24 | 15 | 200 | 0.50 | 0.80 | 1.00 | 0.90 | 0.95 | 0.85 | A | 0.95 | 0.90 | |
| E15, E24 | 15 | 200 | 0.45 | 0.75 | 0.95 | 0.85 | 0.95 | 1.00 | A | 0.95 | 0.90 | |
| E15, E24 | 20 | 200 | 0.45 | 0.75 | 0.90 | 0.90 | 1.00 | 1.00 | A | 0.95 | 0.90 | |
| A15, A24 | 15 | 50 | 0.10 | 0.45 | 0.85 | 1.00 | 0.95 | 0.80 | C | 0.75 | 0.80 | |
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® Koral?
Get in touch with a local Rockfon office or find a distributor near you.