Fural L-Absorber
L-Absorber
αw 0.65–0.75Absorber class C
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.
Documents
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
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| Compare | Perforation | Size | Test setup | Value |
|---|---|---|---|---|
| Rg 2.5-16% | 100 mm build-up | 60 mm sheep wool 20 kg/m³; 1350 mm floor leg | αw0.75 | |
| Rg 2.5-16% | 200 mm build-up | 60 mm sheep wool 20 kg/m³; 1000 mm floor leg | αw0.75 | |
| Rg 2.5-16% | 150 mm build-up | 60 mm sheep wool 20 kg/m³; 1350 mm floor leg | αw0.70 | |
| Rg 2.5-16% | 200 mm build-up | 60 mm sheep wool 20 kg/m³; 1350 mm floor leg | αw0.70 | |
| Rg 2.5-16% | 100 mm build-up | 60 mm sheep wool 20 kg/m³; 1000 mm floor leg | αw0.70 | |
| Rg 2.5-16% | 150 mm build-up | 60 mm sheep wool 20 kg/m³; 1000 mm floor leg | αw0.70 | |
| Rg 0.7-4% | 100 mm build-up | 60 mm sheep wool 20 kg/m³; 1000 mm floor leg | αw0.65 | |
| Rg 0.7-4% | 150 mm build-up | 60 mm sheep wool 20 kg/m³; 1000 mm floor leg | αw0.65 | |
| Rg 0.7-4% | 200 mm build-up | 60 mm sheep wool 20 kg/m³; 1000 mm floor leg | αw0.65 | |
| Rg 0.7-4% | 100 mm build-up | 60 mm sheep wool 20 kg/m³; 1350 mm floor leg | αw0.65 | |
| Rg 0.7-4% | 150 mm build-up | 60 mm sheep wool 20 kg/m³; 1350 mm floor leg | αw0.65 | |
| Rg 0.7-4% | 200 mm build-up | 60 mm sheep wool 20 kg/m³; 1350 mm floor leg | αw0.65 |
Absorber class: C
Test report: M 105629/32 (Aufbau 10)
Institute: Müller-BBM
Dimensions: 100 mm total height
Test setup: 60 mm sheep wool 20 kg/m³; 1350 mm floor leg
Measured values as a table (12 measurements)
| Build-up | αw | Absorber class | 100 Hz | 125 Hz | 160 Hz | 200 Hz | 250 Hz | 315 Hz | 400 Hz | 500 Hz | 630 Hz | 800 Hz | 1000 Hz | 1250 Hz | 1600 Hz | 2000 Hz | 2500 Hz | 3150 Hz | 4000 Hz | 5000 Hz |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rg 0.7-4% · 100 mm build-up · 60 mm sheep wool 20 kg/m³; 1000 mm floor leg · fleece | 0.65 | C | 0.32 | 0.40 | 0.52 | 0.56 | 0.67 | 0.70 | 0.74 | 0.76 | 0.73 | 0.72 | 0.69 | 0.62 | 0.59 | 0.63 | 0.62 | 0.57 | 0.54 | 0.51 |
| Rg 2.5-16% · 100 mm build-up · 60 mm sheep wool 20 kg/m³; 1350 mm floor leg · fleece | 0.75 | C | 0.39 | 0.48 | 0.56 | 0.65 | 0.71 | 0.73 | 0.75 | 0.76 | 0.75 | 0.76 | 0.74 | 0.70 | 0.64 | 0.64 | 0.67 | 0.65 | 0.63 | 0.62 |
| Rg 2.5-16% · 150 mm build-up · 60 mm sheep wool 20 kg/m³; 1350 mm floor leg · fleece | 0.70 | C | 0.39 | 0.47 | 0.57 | 0.67 | 0.71 | 0.73 | 0.75 | 0.77 | 0.75 | 0.75 | 0.71 | 0.68 | 0.66 | 0.65 | 0.67 | 0.66 | 0.64 | 0.62 |
| Rg 2.5-16% · 200 mm build-up · 60 mm sheep wool 20 kg/m³; 1350 mm floor leg · fleece | 0.70 | C | 0.39 | 0.50 | 0.58 | 0.69 | 0.71 | 0.72 | 0.75 | 0.76 | 0.74 | 0.73 | 0.69 | 0.71 | 0.65 | 0.65 | 0.68 | 0.66 | 0.64 | 0.63 |
| Rg 0.7-4% · 150 mm build-up · 60 mm sheep wool 20 kg/m³; 1000 mm floor leg · fleece | 0.65 | C | 0.33 | 0.40 | 0.52 | 0.56 | 0.67 | 0.71 | 0.73 | 0.74 | 0.73 | 0.69 | 0.64 | 0.62 | 0.61 | 0.62 | 0.63 | 0.57 | 0.55 | 0.52 |
| Rg 0.7-4% · 200 mm build-up · 60 mm sheep wool 20 kg/m³; 1000 mm floor leg · fleece | 0.65 | C | 0.32 | 0.39 | 0.52 | 0.59 | 0.67 | 0.69 | 0.71 | 0.71 | 0.70 | 0.66 | 0.64 | 0.62 | 0.60 | 0.63 | 0.62 | 0.58 | 0.54 | 0.51 |
| Rg 0.7-4% · 100 mm build-up · 60 mm sheep wool 20 kg/m³; 1350 mm floor leg · fleece | 0.65 | C | 0.32 | 0.36 | 0.49 | 0.57 | 0.65 | 0.68 | 0.73 | 0.75 | 0.74 | 0.74 | 0.71 | 0.64 | 0.60 | 0.63 | 0.63 | 0.57 | 0.55 | 0.50 |
| Rg 0.7-4% · 150 mm build-up · 60 mm sheep wool 20 kg/m³; 1350 mm floor leg · fleece | 0.65 | C | 0.29 | 0.36 | 0.49 | 0.58 | 0.65 | 0.67 | 0.73 | 0.75 | 0.74 | 0.71 | 0.67 | 0.64 | 0.61 | 0.63 | 0.63 | 0.58 | 0.56 | 0.52 |
| Rg 0.7-4% · 200 mm build-up · 60 mm sheep wool 20 kg/m³; 1350 mm floor leg · fleece | 0.65 | C | 0.32 | 0.39 | 0.50 | 0.60 | 0.65 | 0.67 | 0.72 | 0.74 | 0.72 | 0.69 | 0.67 | 0.65 | 0.60 | 0.63 | 0.63 | 0.58 | 0.56 | 0.52 |
| Rg 2.5-16% · 100 mm build-up · 60 mm sheep wool 20 kg/m³; 1000 mm floor leg · fleece | 0.70 | C | 0.39 | 0.43 | 0.58 | 0.65 | 0.75 | 0.74 | 0.77 | 0.75 | 0.74 | 0.73 | 0.71 | 0.68 | 0.63 | 0.62 | 0.66 | 0.64 | 0.63 | 0.62 |
| Rg 2.5-16% · 150 mm build-up · 60 mm sheep wool 20 kg/m³; 1000 mm floor leg · fleece | 0.70 | C | 0.39 | 0.47 | 0.59 | 0.67 | 0.75 | 0.75 | 0.77 | 0.74 | 0.73 | 0.71 | 0.68 | 0.66 | 0.65 | 0.63 | 0.66 | 0.64 | 0.63 | 0.62 |
| Rg 2.5-16% · 200 mm build-up · 60 mm sheep wool 20 kg/m³; 1000 mm floor leg · fleece | 0.75 | C | 0.40 | 0.53 | 0.61 | 0.69 | 0.75 | 0.74 | 0.75 | 0.73 | 0.71 | 0.67 | 0.66 | 0.67 | 0.63 | 0.64 | 0.67 | 0.65 | 0.62 | 0.60 |
Measured values as a table (12 measurements)
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