Manufacturer
raumton
raumton GmbH from Berlin plans, manufactures and installs sound absorbers for rooms in which people speak: open-plan and single offices, conference and presentation rooms, play and learning rooms as well as meeting and dining areas. The range runs from ceiling and wall absorbers through baffles, stretch ceilings and cubes to free-standing partition and floor absorbers. The absorber core is melamine resin foam or PET acoustic fleece, both free of artificial and natural mineral fibres, halogens and CFCs. For the fabric covering, more than 300 colours and textures are available in polyester, pure new wool, blended fabrics or non-combustible glass fabric. All products are made to bespoke dimensions.
raumton Fabric-covered ceiling absorber
Fabric-covered ceiling absorber
Description
The fabric-covered ceiling absorber is frameless and is suspended beneath the ceiling on four steel cables at a continuously adjustable height, or mounted directly underneath it. The covering is available in polyester, pure new wool, blended fabric or non-combustible glass fabric in over 300 colours and textures. raumton manufactures in all sizes up to 4000 × 1500 mm; non-combustible class A2 material per DIN 4102-1 is available if required.
Technical data
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 5 variants
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.30 | 0.95 | 1.00 | 0.85 | 0.80 | 0.75 |
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
| Compare | Value | ||
|---|---|---|---|
| 2 in | Direkt unter der ceiling montiert | NRC0.90 | |
| 3.9 in | Direkt unter der ceiling montiert | NRC0.90 | |
| 3.9 in | 12 in distance to the ceiling, Einzelobjekt | Aobj5.00m² | |
| 2 in | 12 in distance to the ceiling, Einzelobjekt | Aobj4.90m² | |
| 2 in | 3.9 in distance to the ceiling, Einzelobjekt | Aobj4.20m² |
Test report: B175366, Protokoll 20240528-6
NRC: 0.90 (derived from ISO 354 lab data)
Institute: Müller-BBM, Planegg
Measurement date: 2024-05-28
Room volume: 7,049 cu ft
Object area: 39 sq ft
Measured values as a table (5 measurements)
| Build-up | NRC | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 50 mm · Direkt unter der ceiling montiert · PET-Gewebe „Era", Camira Fabrics | 0.90 | 0.14 | 0.24 | 0.46 | 0.75 | 0.96 | 1.12 | 1.05 | 0.98 | 0.91 | 0.89 | 0.86 | 0.83 | 0.80 | 0.78 | 0.76 | 0.75 | 0.76 | 0.73 |
| 50 mm · 100 mm distance to the ceiling, Einzelobjekt · PET-Gewebe „Era", Camira Fabrics (Aobj, m²) | – | 0.60 | 1.00 | 1.90 | 2.90 | 3.70 | 4.30 | 4.90 | 5.00 | 4.70 | 4.40 | 4.20 | 4.00 | 3.80 | 3.80 | 3.80 | 3.70 | 3.60 | 3.50 |
| 50 mm · 300 mm distance to the ceiling, Einzelobjekt · PET-Gewebe „Era", Camira Fabrics (Aobj, m²) | – | 0.60 | 1.30 | 2.10 | 2.90 | 3.40 | 3.60 | 4.00 | 4.20 | 4.90 | 5.10 | 4.90 | 4.70 | 4.60 | 4.50 | 4.50 | 4.60 | 4.50 | 4.40 |
| 100 mm · Direkt unter der ceiling montiert · PET-Gewebe „Era", Camira Fabrics | 0.90 | 0.36 | 0.79 | 1.26 | 1.09 | 1.09 | 0.93 | 0.85 | 0.83 | 0.82 | 0.82 | 0.81 | 0.81 | 0.80 | 0.79 | 0.78 | 0.79 | 0.76 | 0.75 |
| 100 mm · 300 mm distance to the ceiling, Einzelobjekt · PET-Gewebe „Era", Camira Fabrics (Aobj, m²) | – | 1.40 | 2.30 | 3.40 | 4.50 | 5.20 | 5.50 | 5.50 | 5.50 | 5.30 | 5.30 | 5.00 | 4.80 | 4.80 | 4.80 | 4.70 | 4.60 | 4.60 | 4.60 |
Measured values as a table (5 measurements)
Access frequency bands, variants and export. Create a permanent free account
Last updated: