Metfiber Eco Wall Sound
Sound-absorbing sandwich wall panel (eco)
NRC 0.90–1.00
Description
Sound-absorbing sandwich wall panel with a glass-wool core (80% recycled material) and steel facings, the inner skin perforated. Excellent sound-insulation and absorption properties. Patented fleece dust-protection system between the inner skin and the glass-wool core. Ecologically sustainable through a high share of recycled content.
Technical data
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 9 variants
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Frequency values
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| Compare | Value | |
|---|---|---|
| 0 in (direct mounting) | NRC0.95 | |
| 0 in (direct mounting) | NRC0.95 | |
| 3.9 in wall standoff | NRC0.95 | |
| 16 in wall standoff | NRC0.95 | |
| 16 in wall standoff | NRC0.90 |
Test report: 003
NRC: 0.95 (derived from ISO 354 lab data)
Institute: Peutz (NL)
Measured values as a table (9 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3.9 in · 0 in (direct mounting) | 0.95 | 0.41 | 0.66 | 0.72 | 0.78 | 0.90 | 0.92 | 0.96 | 0.95 | 0.93 | 0.93 | 0.98 | 0.97 | 0.95 | 0.99 | 0.99 | 0.96 | 0.97 | 0.97 |
| 3.9 in · 0 in (direct mounting) | 0.95 | 0.38 | 0.81 | 0.85 | 0.78 | 0.87 | 0.94 | 0.92 | 0.94 | 0.92 | 0.97 | 0.97 | 1.02 | 1.02 | 1.04 | 1.03 | 1.01 | 0.93 | 0.70 |
| 4.7 in · 0 in (direct mounting) | 1.00 | 0.41 | 0.80 | 0.82 | 0.81 | 0.91 | 0.97 | 1.01 | 0.97 | 0.96 | 1.00 | 1.00 | 1.02 | 0.98 | 1.03 | 1.04 | 1.04 | 1.00 | 1.02 |
| 5.9 in · 0 in (direct mounting) | 0.95 | 0.49 | 0.75 | 0.82 | 0.77 | 0.84 | 0.79 | 0.91 | 0.95 | 0.96 | 0.98 | 0.99 | 0.99 | 1.03 | 1.04 | 1.03 | 0.99 | 0.98 | 0.95 |
| 7.9 in · 0 in (direct mounting) | 0.95 | 0.49 | 0.75 | 0.76 | 0.68 | 0.87 | 0.82 | 0.94 | 0.93 | 0.96 | 0.99 | 1.00 | 1.01 | 1.01 | 1.03 | 1.03 | 1.01 | 0.96 | 0.77 |
| 3.9 in · 3.9 in wall standoff | 0.95 | 0.34 | 0.78 | 0.80 | 0.78 | 0.79 | 0.83 | 0.95 | 0.95 | 0.95 | 0.98 | 0.99 | 1.03 | 1.01 | 1.03 | 1.05 | 1.04 | 1.00 | 1.04 |
| 3.9 in · 16 in wall standoff | 0.90 | 0.42 | 0.53 | 0.68 | 0.81 | 0.83 | 0.95 | 0.93 | 0.89 | 0.93 | 0.97 | 0.96 | 0.98 | 0.98 | 0.99 | 1.04 | 1.01 | 0.98 | 0.96 |
| 3.9 in · 16 in wall standoff | 0.95 | 0.48 | 0.49 | 0.63 | 0.81 | 0.84 | 0.90 | 0.90 | 0.92 | 0.93 | 0.99 | 0.98 | 0.97 | 0.99 | 0.99 | 1.00 | 0.98 | 1.00 | 0.94 |
| 7.9 in · 12 in wall standoff | 0.95 | 0.48 | 0.50 | 0.64 | 0.78 | 0.86 | 0.90 | 0.89 | 0.89 | 0.91 | 0.99 | 0.97 | 0.99 | 0.98 | 0.99 | 1.00 | 0.98 | 0.94 | 0.94 |
Measured values as a table (9 measurements)
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Last updated:
Calculate reverberation time with this product
Building acoustics dataRw 35 (-1; -4) dB · 3 measurements
Airborne sound insulation Rw· 3 variants
EN ISO 10140-2 / ISO 717-1
Frequency values
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| Compare | Thickness | Rw |
|---|---|---|
| 3.9 in | 35 (-1; -4)dB | |
| 4.7 in | 35 (-1; -4)dB | |
| 5.9 in | 34 (-1; -3)dB |
TU Eindhoven (NL) · 2020 · 039