Open Cell Aluminium Ceiling Acoustic Properties \u2014 Absorption Coefficients (125Hz\u20134kHz)
Grid of interlocking aluminium cells (typically 50x50mm to 200x200mm) suspended below services with acoustic pad above. The open structure allows sound to pass through to the absorber while providing a clean geometric ceiling finish.
Absorption Coefficients by Octave Band
| Frequency (Hz) | 125 | 250 | 500 | 1000 | 2000 | 4000 |
|---|---|---|---|---|---|---|
| α (absorption) | 0.15 | 0.30 | 0.50 | 0.60 | 0.60 | 0.55 |
RT60 Impact
Installing 25m² of open cell ceiling with acoustic pad in a 100m³ room reduces RT60 by approximately 0.30s at 500Hz
Manufacturers & Brands
Frequently Asked Questions
What is the NRC of Open Cell Aluminium Ceiling?
Open Cell Aluminium Ceiling has an NRC (Noise Reduction Coefficient) of 0.50, calculated as the arithmetic mean of absorption coefficients at 250, 500, 1000, and 2000 Hz per ASTM C423.
Where is Open Cell Aluminium Ceiling typically used?
Open Cell Aluminium Ceiling is typically used as a ceiling treatment. Grid of interlocking aluminium cells (typically 50x50mm to 200x200mm) suspended below services with acoustic pad above.
How much does Open Cell Aluminium Ceiling reduce RT60?
Installing 25m² of open cell ceiling with acoustic pad in a 100m³ room reduces RT60 by approximately 0.30s at 500Hz
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