SilentRoot Torf Acoustic Panel

Name: SilentRoot Torf Acoustic Panel
Brand: SilentFiber

NRC 0.60–1.00

EPD availableWallCeiling

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Manufacturer

SilentFiber

SilentFiber offers a broad portfolio of sustainable acoustic elements made from natural fibres. The product family ranges from the peat-based SilentRoot acoustic panel through the hemp-based SilentHEMP line to specialty products such as SilentSPA (wet room), SilentMOSS (moss picture) and SilentBEE (hexagon). Owner Dipl. Ing. Robert Schwemmer operates as a brand owner with selected European manufacturing partners. Custom formats and individual cutting are available from the first panel onward (max. 3.9 × 7.9 ft). Awards: Green Product Award 2022, Klimaschutzpreis (Climate Protection Prize), Austrian Bauherrenpreis, Green Product Award Finalist 2026.

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EPD Fire protection M1

Description

Made from surface peat fiber, the SilentRoot Torf Acoustic Panel is used on walls and ceilings and comes in four thicknesses. Standard formats include square and rectangular panels, a wave-shaped panel and a ceiling cloud, and every thickness is also produced in custom sizes, with freeform cutting and printing. Panels are mounted directly on the substrate or with an air gap behind them, and they are also suitable for humid rooms.

Technical data

Material: Peat-fibre acoustic panel made from surface peat

Surface: matt, porous fibre face, seven standard colours

Fire class (EN 13501-1): B-s3,d0 per EN 13501-1:2018 (low flammability)

Application: Wall and ceiling mounting, also suitable for damp rooms

Certifications: M1 Emission Class, EPD per EN 15804+A2, REACH-SVHC-free

Colours: 7 standard colours, any RAL shade except pure white

Measurement data

Sound absorption

Reverberation chamber (ASTM C423 / ISO 354)· 23 variants

Choose thickness

Datasheet 0.79 in

NRC

0.85

Frequency values

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		Value
7.9 in air gap	Direct mounting with 7.9 in rear ventilation gap	NRC0.85
3.9 in air gap	Direct mounting with 3.9 in rear ventilation gap	NRC0.80
16 in air gap	Direct mounting with 16 in rear ventilation gap	NRC0.80
28 in air gap	Direct mounting with 28 in rear ventilation gap	NRC0.80
2 in air gap	Direct mounting with 2 in rear ventilation gap	NRC0.70
0 in (directly on rigid backing)	Direct mounting (wall or ceiling)	NRC0.60

Test report: 17-202-M4

NRC: 0.85 (derived from ISO 354 lab data)

Institute: Akustikverkstan Sweden (accreditation no. 10126, ISO/IEC 17025)

Measurement date: 08/17/2017

Room volume: 7,063 cu ft

Object area: 108 sq ft

Measured values as a table (23 measurements)

SilentRoot Torf Acoustic Panel: sound absorption coefficient αs per ISO 354 by frequency and test build-up
Build-up	NRC	50 Hz	63 Hz	80 Hz	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
0.79 in · 0 in (directly on rigid backing) · Direct mounting (wall or ceiling)	0.60	0.00	0.00	0.03	0.03	0.05	0.07	0.13	0.19	0.28	0.42	0.53	0.68	0.72	0.78	0.81	0.94	0.91	1.02	1.02	1.02	1.00
0.79 in · 2 in air gap · Direct mounting with 2 in rear ventilation gap	0.70	0.00	0.01	0.05	0.06	0.08	0.12	0.17	0.25	0.39	0.57	0.72	0.90	0.93	0.98	0.96	1.01	0.93	1.00	0.98	1.00	1.04
0.79 in · 3.9 in air gap · Direct mounting with 3.9 in rear ventilation gap	0.80	0.02	0.04	0.09	0.12	0.15	0.25	0.27	0.41	0.62	0.82	0.94	1.04	1.07	1.06	0.98	0.92	0.87	0.97	1.00	1.01	1.03
0.79 in · 7.9 in air gap · Direct mounting with 7.9 in rear ventilation gap	0.85	0.08	0.09	0.18	0.22	0.35	0.40	0.55	0.69	0.88	0.99	1.02	1.01	0.90	0.82	0.90	0.97	0.91	0.99	0.98	1.00	1.03
0.79 in · 16 in air gap · Direct mounting with 16 in rear ventilation gap	0.80	0.17	0.12	0.29	0.35	0.58	0.58	0.67	0.83	0.85	0.74	0.66	0.85	0.92	0.88	0.90	0.95	0.90	0.99	1.01	1.01	1.03
0.79 in · 28 in air gap · Direct mounting with 28 in rear ventilation gap	0.80	0.20	0.13	0.48	0.36	0.49	0.68	0.64	0.47	0.61	0.75	0.83	0.89	0.86	0.92	0.90	0.96	0.91	0.97	0.99	1.02	1.03
1.2 in · 0 in (directly on rigid backing) · Direct mounting (wall or ceiling)	0.65	0.00	0.02	0.07	0.07	0.11	0.15	0.24	0.30	0.42	0.57	0.65	0.79	0.79	0.83	0.85	0.93	0.90	0.96	0.97	0.96	0.98
1.2 in · 2 in air gap · Direct mounting with 2 in rear ventilation gap	0.70	0.00	0.04	0.07	0.08	0.11	0.17	0.24	0.31	0.44	0.63	0.74	0.85	0.85	0.87	0.87	0.95	0.90	0.96	0.95	0.97	1.02
1.2 in · 3.9 in air gap · Direct mounting with 3.9 in rear ventilation gap	0.80	0.03	0.06	0.11	0.14	0.15	0.27	0.29	0.43	0.63	0.82	0.93	1.00	1.03	1.02	0.95	0.91	0.87	0.97	0.99	0.99	0.99
1.2 in · 7.9 in air gap · Direct mounting with 7.9 in rear ventilation gap	0.85	0.08	0.11	0.18	0.23	0.29	0.37	0.54	0.68	0.86	0.99	0.99	0.95	0.87	0.83	0.87	0.96	0.91	0.98	0.98	0.99	1.02
1.2 in · 16 in air gap · Direct mounting with 16 in rear ventilation gap	0.80	0.18	0.14	0.27	0.35	0.53	0.53	0.71	0.79	0.81	0.72	0.67	0.85	0.91	0.87	0.90	0.95	0.88	0.98	0.98	0.99	0.99
1.2 in · 28 in air gap · Direct mounting with 28 in rear ventilation gap	0.75	0.23	0.16	0.46	0.34	0.44	0.62	0.60	0.45	0.57	0.72	0.83	0.88	0.86	0.91	0.90	0.95	0.89	0.97	0.99	1.01	1.01
1.6 in · 0 in (directly on rigid backing) · Direct mounting (wall or ceiling)	0.75	0.00	0.03	0.06	0.06	0.11	0.21	0.29	0.36	0.52	0.72	0.77	0.86	0.93	0.89	0.92	0.93	0.93	0.96	0.98	1.01	1.08
1.6 in · 2 in air gap · Direct mounting with 2 in rear ventilation gap	0.75	0.00	0.04	0.06	0.07	0.12	0.21	0.30	0.38	0.53	0.73	0.79	0.87	0.96	0.92	0.93	0.94	0.89	0.97	0.98	1.00	1.03
1.6 in · 3.9 in air gap · Direct mounting with 3.9 in rear ventilation gap	0.85	0.02	0.05	0.09	0.13	0.17	0.29	0.38	0.52	0.70	0.89	0.98	1.07	1.05	1.03	0.95	0.94	0.91	0.99	1.02	1.01	1.05
1.6 in · 7.9 in air gap · Direct mounting with 7.9 in rear ventilation gap	0.90	0.08	0.14	0.16	0.27	0.31	0.42	0.62	0.76	0.96	1.05	1.00	1.03	0.92	0.86	0.93	0.98	0.92	1.00	0.99	1.00	1.05
1.6 in · 16 in air gap · Direct mounting with 16 in rear ventilation gap	0.85	0.15	0.13	0.27	0.46	0.54	0.56	0.72	0.82	0.92	0.82	0.73	0.96	0.96	0.92	0.94	0.95	0.92	1.00	1.02	1.02	1.03
1.6 in · 28 in air gap · Direct mounting with 28 in rear ventilation gap	0.80	0.21	0.14	0.49	0.49	0.54	0.64	0.61	0.51	0.61	0.84	0.87	0.91	0.96	0.96	0.96	0.94	0.95	0.98	1.02	1.01	1.04
2 in · 0 in (directly on rigid backing) · Direct mounting (wall or ceiling)	0.90	0.00	0.02	0.06	0.08	0.12	0.26	0.36	0.52	0.73	0.94	0.97	1.07	1.13	1.08	1.06	1.08	1.04	1.08	1.09	1.10	1.10
2 in · 3.9 in air gap · Direct mounting with 3.9 in rear ventilation gap	1.00	0.00	0.05	0.10	0.16	0.20	0.37	0.48	0.74	0.93	1.13	1.14	1.17	1.15	1.13	1.06	1.07	1.04	1.14	1.10	1.11	1.12
2 in · 7.9 in air gap · Direct mounting with 7.9 in rear ventilation gap	1.00	0.09	0.13	0.21	0.36	0.46	0.54	0.71	0.87	1.12	1.22	1.12	1.15	1.10	1.03	1.06	1.08	1.04	1.10	1.08	1.09	1.12
2 in · 16 in air gap · Direct mounting with 16 in rear ventilation gap	1.00	0.17	0.13	0.34	0.56	0.72	0.69	0.83	0.93	1.05	1.02	0.92	1.10	1.10	1.06	1.06	1.06	1.04	1.11	1.09	1.08	1.12
2 in · 28 in air gap · Direct mounting with 28 in rear ventilation gap	0.95	0.22	0.14	0.60	0.62	0.73	0.71	0.78	0.66	0.79	0.99	1.01	1.09	1.12	1.09	1.06	1.06	1.04	1.11	1.09	1.08	1.12

Measured values as a table (23 measurements)

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Last updated: 11/04/2026

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