raumton Fabric-covered ceiling absorber

Name: raumton Fabric-covered ceiling absorber
Brand: raumton

Fabric-covered ceiling absorber

NRC 0.90

CeilingFree-hanging

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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.

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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 157 × 59 in; non-combustible class A2 material per DIN 4102-1 is available if required.

Technical data

Material: Flexible foam based on melamine resin, OEKO-TEX 100; frame and cross-bracing of metal U-profiles

Surface: polyester, pure new wool, blended fabric or non-combustible glass fabric, over 300 colours and textures

Fire class (EN 13501-1): DIN 4102-1 B1, DIN EN 13501-1 B-s1,d0; non-combustible A2 per DIN 4102-1 on request

Measurement data

Sound absorption

Reverberation chamber (ASTM C423 / ISO 354)· 5 variants

NRC

0.90

Frequency values

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		Value
2 in	Mounted directly below the ceiling	NRC0.90
3.9 in	Mounted directly below the ceiling	NRC0.90
3.9 in	12 in distance to the ceiling, single object	Sabins/unit54
2 in	12 in distance to the ceiling, single object	Sabins/unit53
2 in	3.9 in distance to the ceiling, single object	Sabins/unit45

Test report: B175366, Protokoll 20240528-6

NRC: 0.90 (derived from ISO 354 lab data)

Institute: Müller-BBM, Planegg

Measurement date: 05/28/2024

Room volume: 7,049 cu ft

Object area: 39 sq ft

Measured values as a table (5 measurements)

raumton Fabric-covered ceiling absorber: sound absorption coefficient αs per ISO 354 by frequency and test build-up
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
2 in · Mounted directly below the ceiling · 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
2 in · 3.9 in distance to the ceiling, single object · PET-Gewebe „Era", Camira Fabrics (sabins/unit)	–	6.5	11	20	31	40	46	53	54	51	47	45	43	41	41	41	40	39	38
2 in · 12 in distance to the ceiling, single object · PET-Gewebe „Era", Camira Fabrics (sabins/unit)	–	6.5	14	23	31	37	39	43	45	53	55	53	51	50	48	48	50	48	47
3.9 in · Mounted directly below the ceiling · 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
3.9 in · 12 in distance to the ceiling, single object · PET-Gewebe „Era", Camira Fabrics (sabins/unit)	–	15	25	37	48	56	59	59	59	57	57	54	52	52	52	51	50	50	50

Measured values as a table (5 measurements)

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Last updated: 11/04/2026

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