Manufacturer
Fural Systeme in Metall GmbH
Fural manufactures modular metal ceiling systems with outstanding acoustic performance. Every metal ceiling is an acoustic ceiling with additional functions such as fire protection, cooling, heating, hygiene or impact resistance. Certified to TAIM, with EPDs available for steel and aluminium systems.
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FURAL L-Absorber
L-Absorber
Description
L-shaped wall absorber element for mounting on a substructure. The perforated metal surface is combined with a mineral wool or sheep's wool layer. Targeted retrofit room-acoustics optimization, also for refurbishment of existing buildings. 12 tested configurations.
Technical data
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 12 variants
Size
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.50 | 0.70 | 0.75 | 0.75 | 0.65 | 0.65 |
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| Compare | Perforation | Size | Value |
|---|---|---|---|
| Rg 2,5-16% | 100 mm Aufbau | αw0.75 | |
| Rg 2,5-16% | 200 mm Aufbau | αw0.75 | |
| Rg 2,5-16% | 150 mm Aufbau | αw0.70 | |
| Rg 2,5-16% | 200 mm Aufbau | αw0.70 | |
| Rg 2,5-16% | 100 mm Aufbau | αw0.70 | |
| Rg 0,7-4% | 100 mm Aufbau | αw0.65 | |
| Rg 0,7-4% | 150 mm Aufbau | αw0.65 | |
| Rg 0,7-4% | 200 mm Aufbau | αw0.65 | |
| Rg 0,7-4% | 200 mm Aufbau | αw0.65 |
Absorber class: C
Test report: M 105629/32 (Aufbau 10)
NRC: 0.70
Institute: MFPA Leipzig
Dimensions: 100 mm total height
Application: 60 mm sheep wool 20 kg/m³