Fural Acoustic Wall

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

Acoustic Wall

NRC 0.55–1.05

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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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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

Fire class (EN 13501-1): A1 (DIN EN 13501-1)

Application: wall cladding

Measurement data

Sound absorption

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

Perforation

Size

NRC

1.05

Frequency values

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Perforation	Size	Test setup	Value
Rv 1.6-20%	4.1 in build-up	3x Sandler Blue Fiber, 1.2 lb/ft³, 40 + 40 + 0.59 in	NRC1.05
Rv 1.6-20%	4.3 in build-up	3x Sandler Blue Fiber, 1.2 lb/ft³, 40 + 40 + 0.59 in	NRC1.05
Rg 2.5-16%	4.1 in build-up	3x Sandler Blue Fiber, 1.2 lb/ft³, 40 + 40 + 0.59 in, incl. resonant plate Fe 0.04 in at 3.1 in	NRC1.00
Rg 2.5-16%	4.1 in build-up	3x Sandler Blue Fiber, 1.2 lb/ft³, 40 + 40 + 0.59 in	NRC1.00
Rg 2.5-16%	4.1 in build-up	3x Sandler Blue Fiber, 1.2 lb/ft³, 30 + 30 + 1.2 in, incl. resonant plate Fe 0.04 in at 2.4 in	NRC1.00
Rg 2.5-16%	4.1 in build-up	3x Sandler Blue Fiber, 1.2 lb/ft³, 30 + 30 + 1.2 in	NRC1.00
Rg 2.5-16%	4.1 in build-up	3x Sandler Blue Fiber, 1.2 lb/ft³, 40 + 30 + 1.2 in	NRC1.00
Rv 1.6-20%	4.1 in build-up	3x Sandler Blue Fiber, 1.2 lb/ft³, 40 + 40 + 0.59 in, incl. resonant plate Fe 0.04 in at 3.1 in	NRC1.00
Rv 1.6-20%	2 in build-up	2 in mineral wool 6.2 lb/ft³ in PE film	NRC0.95
Rd 1.8-21%	2 in build-up	2 in mineral wool 6.2 lb/ft³ in PE film	NRC0.95
Rg 2.5-16%	2 in build-up	2 in mineral wool 6.2 lb/ft³ in PE film	NRC0.90
Rv 3.0-20%	2 in build-up	2 in mineral wool 6.2 lb/ft³ in PE film	NRC0.90
Rg 0.7-4%	2 in build-up	2 in mineral wool 6.2 lb/ft³ in PE film	NRC0.85
Rv 1.6-20%	4.1 in build-up	3.9 in mineral wool 3.1 lb/ft³ in PE film	NRC0.85
Rg 2.5-16%	4.1 in build-up	3.9 in mineral wool 3.1 lb/ft³ in PE film	NRC0.85
Rg 2.5-16%	4.1 in build-up	2x 2 in mineral wool 3.1 lb/ft³ in PE film	NRC0.75
Rv 1.6-20%	4.1 in build-up	2x 2 in mineral wool 3.1 lb/ft³ in PE film incl. resonant plate Fe 0.04 in between the two mineral-wool layers	NRC0.75
Rv 1.6-20%	4.1 in build-up	2x 2 in mineral wool 3.1 lb/ft³ in PE film	NRC0.75
Rg 2.5-16%	4.1 in build-up	2x 2 in mineral wool 3.1 lb/ft³ in PE film incl. resonant plate Fe 0.04 in between the two mineral-wool layers	NRC0.70
Rg 0.7-1%	2 in build-up	2 in mineral wool 6.2 lb/ft³ in PE film	NRC0.55

Test report: 2024-07-16 Messprotokoll Kurve 13

NRC: 1.05 (derived from ISO 354 lab data)

Dimensions: 4.1 in total height

Test setup: 3x Sandler Blue Fiber, 1.2 lb/ft³, 40 + 40 + 0.59 in

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% · 2 in build-up · 2 in mineral wool 6.2 lb/ft³ 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% · 2 in build-up · 2 in mineral wool 6.2 lb/ft³ 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% · 2 in build-up · 2 in mineral wool 6.2 lb/ft³ 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% · 2 in build-up · 2 in mineral wool 6.2 lb/ft³ 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% · 2 in build-up · 2 in mineral wool 6.2 lb/ft³ 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% · 2 in build-up · 2 in mineral wool 6.2 lb/ft³ 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% · 4.1 in build-up · 2x 2 in mineral wool 3.1 lb/ft³ in PE film incl. resonant plate Fe 0.04 in 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% · 4.1 in build-up · 2x 2 in mineral wool 3.1 lb/ft³ in 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% · 4.1 in build-up · 3.9 in mineral wool 3.1 lb/ft³ 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% · 4.1 in build-up · 3x Sandler Blue Fiber, 1.2 lb/ft³, 40 + 40 + 0.59 in, incl. resonant plate Fe 0.04 in at 3.1 in · 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% · 4.1 in build-up · 3x Sandler Blue Fiber, 1.2 lb/ft³, 40 + 40 + 0.59 in · 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% · 4.1 in build-up · 2x 2 in mineral wool 3.1 lb/ft³ in PE film incl. resonant plate Fe 0.04 in 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% · 4.1 in build-up · 2x 2 in mineral wool 3.1 lb/ft³ in 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% · 4.1 in build-up · 3x Sandler Blue Fiber, 1.2 lb/ft³, 30 + 30 + 1.2 in, incl. resonant plate Fe 0.04 in at 2.4 in · 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% · 4.1 in build-up · 3x Sandler Blue Fiber, 1.2 lb/ft³, 30 + 30 + 1.2 in · 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% · 4.1 in build-up · 3x Sandler Blue Fiber, 1.2 lb/ft³, 40 + 30 + 1.2 in · 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% · 4.1 in build-up · 3.9 in mineral wool 3.1 lb/ft³ 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% · 4.1 in build-up · 3x Sandler Blue Fiber, 1.2 lb/ft³, 40 + 40 + 0.59 in, incl. resonant plate Fe 0.04 in at 3.1 in · 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% · 4.1 in build-up · 3x Sandler Blue Fiber, 1.2 lb/ft³, 40 + 40 + 0.59 in · 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% · 4.3 in build-up · 3x Sandler Blue Fiber, 1.2 lb/ft³, 40 + 40 + 0.59 in · 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: 11/03/2026

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