Living Green Wall Acoustic Properties \u2014 Absorption Coefficients (125Hz\u20134kHz)
Vertical planting system with soil substrate and irrigation. Provides moderate acoustic absorption from the substrate, foliage, and structural backing. Increasingly specified in biophilic office and hospitality design. Absorption varies significantly with plant density and substrate depth.
Absorption Coefficients by Octave Band
| Frequency (Hz) | 125 | 250 | 500 | 1000 | 2000 | 4000 |
|---|---|---|---|---|---|---|
| α (absorption) | 0.10 | 0.20 | 0.35 | 0.50 | 0.55 | 0.50 |
RT60 Impact
Installing 12m² of living wall with 100mm substrate in a 100m³ room reduces RT60 by approximately 0.12s at 500Hz
Frequently Asked Questions
What is the NRC of Living Green Wall?
Living Green Wall has an NRC (Noise Reduction Coefficient) of 0.40, calculated as the arithmetic mean of absorption coefficients at 250, 500, 1000, and 2000 Hz per ASTM C423.
Where is Living Green Wall typically used?
Living Green Wall is typically used as a wall treatment. Vertical planting system with soil substrate and irrigation.
How much does Living Green Wall reduce RT60?
Installing 12m² of living wall with 100mm substrate in a 100m³ room reduces RT60 by approximately 0.12s at 500Hz
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