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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EPD

Fural Acoustic Wall

Name: Fural Acoustic Wall
Brand: Fural Systeme in Metall GmbH

Acoustic Wall

EPD availableWall

Description

Acoustic wall cladding made of perforated metal for targeted room-acoustic optimization, ideal for retrofitting in existing buildings. A seamless transition from ceiling to wall in identical appearance is possible when the wall is combined with a Fural metal ceiling system. It can be printed individually via COLORPRINT and thus used as a visual design element. 20 tested configurations with different specifications.

Technical data

Material: galvanized steel

Surface: RAL 9010, powder coating 60–70 μm

Up to fire class: A1 (DIN EN 13501-1)

Application: wall cladding

Measurement data

Sound absorption

Reverberation chamber (ASTM C423 / ISO 354)· 20 variants

Perforation

Size

NRC

1.00

Frequency values

α_p per octave band

f (Hz)	125	250	500	1k	2k	4k
α_p	0.50	0.90	1.00	1.00	0.95	0.90

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Perforation	Size	Test setup	Value
Rg 2,5-16%	4.1 in Aufbau	3x Sandler Blue Fiber, 20 kg/m³, 40 + 40 + 0.6 in, incl. resonant plate Fe 0 in at 3.1 in	NRC1.00
Rg 2,5-16%	4.1 in Aufbau	3x Sandler Blue Fiber, 20 kg/m³, 40 + 40 + 0.6 in	NRC1.00
Rg 2,5-16%	4.1 in Aufbau	3x Sandler Blue Fiber, 20 kg/m³, 30 + 30 + 1.2 in, incl. resonant plate Fe 0 in at 2.4 in	NRC1.00
Rg 2,5-16%	4.1 in Aufbau	3x Sandler Blue Fiber, 20 kg/m³, 30 + 30 + 1.2 in	NRC1.00
Rg 2,5-16%	4.1 in Aufbau	3x Sandler Blue Fiber, 20 kg/m³, 40 + 30 + 1.2 in	NRC1.00
Rv 1,6-20%	4.1 in Aufbau	3x Sandler Blue Fiber, 20 kg/m³, 40 + 40 + 0.6 in, incl. resonant plate Fe 0 in at 3.1 in	NRC1.00
Rv 1,6-20%	4.1 in Aufbau	3x Sandler Blue Fiber, 20 kg/m³, 40 + 40 + 0.6 in	NRC1.05
Rv 1,6-20%	4.3 in Aufbau	3x Sandler Blue Fiber, 20 kg/m³, 40 + 40 + 0.6 in	NRC1.05
Rv 1,6-20%	2 in Aufbau	2 in mineral wool 100 kg/m³ in PE film	NRC0.95
Rd 1,8-21%	2 in Aufbau	2 in mineral wool 100 kg/m³ in PE film	NRC0.95
Rg 2,5-16%	2 in Aufbau	2 in mineral wool 100 kg/m³ in PE film	NRC0.90
Rv 3,0-20%	2 in Aufbau	2 in mineral wool 100 kg/m³ in PE film	NRC0.90
Rv 1,6-20%	4.1 in Aufbau	3.9 in mineral wool 50 kg/m³ in PE film	NRC0.85
Rg 2,5-16%	4.1 in Aufbau	3.9 in mineral wool 50 kg/m³ in PE film	NRC0.85
Rg 0,7-4%	2 in Aufbau	2 in mineral wool 100 kg/m³ in PE film	NRC0.85
Rv 1,6-20%	4.1 in Aufbau	2x 2 in mineral wool 50 kg/m³in PE film	NRC0.75
Rg 2,5-16%	4.1 in Aufbau	2x 2 in mineral wool 50 kg/m³in PE film	NRC0.75
Rv 1,6-20%	4.1 in Aufbau	2x 2 in mineral wool 50 kg/m³in PE film incl. resonant plate Fe 0 in between the two mineral-wool layers	NRC0.75
Rg 2,5-16%	4.1 in Aufbau	2x 2 in mineral wool 50 kg/m³in PE film incl. resonant plate Fe 0 in between the two mineral-wool layers	NRC0.70
Rg 0,7-1%	2 in Aufbau	2 in mineral wool 100 kg/m³ in PE film	NRC0.55

Test report: 2024-07-16 Messprotokoll Kurve 4

NRC: 1.00 (derived from ISO 354 lab data)

Dimensions: 4.1 in total height

Measured values as a table (20 measurements)

Fural Acoustic Wall: 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
Rv 1,6-20% · 50 mm Aufbau · 50 mm mineral wool 100 kg/m³ in PE film · fleece	0.95	0.20	0.25	0.41	0.73	0.88	0.94	0.91	0.93	0.93	0.97	0.96	0.97	1.05	0.96	1.01	0.99	0.80	0.62
Rg 2,5-16% · 50 mm Aufbau · 50 mm mineral wool 100 kg/m³ in PE film · fleece	0.90	0.20	0.27	0.46	0.75	0.87	0.92	0.89	0.90	0.90	0.94	0.93	0.95	0.96	0.92	0.90	0.85	0.74	0.63
Rv 3,0-20% · 50 mm Aufbau · 50 mm mineral wool 100 kg/m³ in PE film · fleece	0.90	0.21	0.28	0.44	0.72	0.87	0.93	0.90	0.90	0.91	0.94	0.94	0.95	0.96	0.93	0.91	0.85	0.74	0.63
Rd 1,8-21% · 50 mm Aufbau · 50 mm mineral wool 100 kg/m³ in PE film · fleece	0.95	0.19	0.25	0.42	0.74	0.86	0.94	0.92	0.93	0.93	0.97	0.96	0.98	0.99	0.95	0.94	0.88	0.76	0.64
Rg 0,7-4% · 50 mm Aufbau · 50 mm mineral wool 100 kg/m³ in PE film · fleece	0.85	0.25	0.30	0.49	0.74	0.86	0.90	0.86	0.88	0.87	0.90	0.88	0.89	0.88	0.82	0.77	0.70	0.58	0.48
Rg 0,7-1% · 50 mm Aufbau · 50 mm mineral wool 100 kg/m³ in PE film · fleece	0.55	0.35	0.45	0.61	0.65	0.70	0.69	0.63	0.63	0.58	0.55	0.54	0.51	0.47	0.40	0.37	0.31	0.25	0.19
Rg 2,5-16% · 105 mm Aufbau · 2x 50 mm mineral wool 50 kg/m³in PE film incl. resonant plate Fe 1,0 mm between the two mineral-wool layers · fleece	0.70	0.23	0.21	0.34	0.43	0.46	0.54	0.59	0.65	0.71	0.75	0.81	0.83	0.84	0.79	0.78	0.77	0.75	0.69
Rg 2,5-16% · 105 mm Aufbau · 2x 50 mm mineral wool 50 kg/m³in PE film · fleece	0.75	0.45	0.31	0.41	0.51	0.59	0.62	0.66	0.70	0.75	0.78	0.82	0.87	0.86	0.82	0.80	0.80	0.76	0.69
Rv 1,6-20% · 105 mm Aufbau · 100 mm mineral wool 50 kg/m³ in PE film · fleece	0.85	0.47	0.43	0.50	0.68	0.79	0.79	0.82	0.84	0.85	0.86	0.91	0.91	0.93	0.88	0.89	0.89	0.83	0.76
Rg 2,5-16% · 105 mm Aufbau · 3x Sandler Blue Fiber, 20 kg/m³, 40 + 40 + 15 mm, incl. resonant plate Fe 1,0 mm at 80 mm · fleece	1.00	0.42	0.50	0.65	0.84	0.96	0.96	1.08	1.03	1.03	0.99	1.00	1.00	0.98	0.95	0.94	0.94	0.89	0.85
Rg 2,5-16% · 105 mm Aufbau · 3x Sandler Blue Fiber, 20 kg/m³, 40 + 40 + 15 mm · fleece	1.00	0.39	0.47	0.69	0.90	1.02	0.96	1.08	1.03	1.00	0.97	0.98	0.99	0.98	0.95	0.95	0.94	0.92	0.87
Rv 1,6-20% · 105 mm Aufbau · 2x 50 mm mineral wool 50 kg/m³in PE film incl. resonant plate Fe 1,0 mm between the two mineral-wool layers · fleece	0.75	0.28	0.26	0.39	0.49	0.54	0.60	0.68	0.73	0.76	0.79	0.84	0.88	0.86	0.84	0.83	0.85	0.83	0.76
Rv 1,6-20% · 105 mm Aufbau · 2x 50 mm mineral wool 50 kg/m³in PE film · fleece	0.75	0.44	0.39	0.46	0.57	0.63	0.67	0.71	0.75	0.78	0.80	0.86	0.90	0.88	0.85	0.87	0.86	0.81	0.75
Rg 2,5-16% · 105 mm Aufbau · 3x Sandler Blue Fiber, 20 kg/m³, 30 + 30 + 30 mm, incl. resonant plate Fe 1,0 mm at 60 mm · fleece	1.00	0.49	0.48	0.54	0.73	0.91	0.92	1.06	1.05	1.05	1.02	1.02	0.98	0.98	0.94	0.94	0.94	0.90	0.85
Rg 2,5-16% · 105 mm Aufbau · 3x Sandler Blue Fiber, 20 kg/m³, 30 + 30 + 30 mm · fleece	1.00	0.36	0.47	0.66	0.88	0.99	0.96	1.09	1.03	1.00	0.98	0.97	0.98	1.00	0.96	0.97	0.96	0.92	0.86
Rg 2,5-16% · 105 mm Aufbau · 3x Sandler Blue Fiber, 20 kg/m³, 40 + 30 + 30 mm · fleece	1.00	0.42	0.52	0.67	0.92	1.00	0.95	1.06	1.03	0.99	0.98	0.97	0.97	1.01	0.98	0.94	0.95	0.92	0.87
Rg 2,5-16% · 105 mm Aufbau · 100 mm mineral wool 50 kg/m³ in PE film · fleece	0.85	0.53	0.44	0.51	0.71	0.79	0.79	0.86	0.88	0.86	0.86	0.89	0.91	0.93	0.89	0.86	0.84	0.77	0.70
Rv 1,6-20% · 105 mm Aufbau · 3x Sandler Blue Fiber, 20 kg/m³, 40 + 40 + 15 mm, incl. resonant plate Fe 1,0 mm at 80 mm · fleece	1.00	0.41	0.52	0.63	0.85	0.95	0.97	1.08	1.08	1.05	1.03	1.02	1.01	1.02	1.01	0.99	1.00	0.97	0.94
Rv 1,6-20% · 105 mm Aufbau · 3x Sandler Blue Fiber, 20 kg/m³, 40 + 40 + 15 mm · fleece	1.05	0.37	0.48	0.65	0.92	1.02	0.99	1.10	1.05	1.05	1.01	1.02	1.01	1.02	1.01	0.97	1.01	0.98	0.94
Rv 1,6-20% · 110 mm Aufbau · 3x Sandler Blue Fiber, 20 kg/m³, 40 + 40 + 15 mm · fleece	1.05	0.38	0.51	0.67	0.93	1.01	1.00	1.11	1.06	1.04	0.98	1.02	1.01	1.01	1.01	1.00	0.99	0.99	0.94

Measured values as a table (20 measurements)

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Last updated: 09/09/2026