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Sound Absorption: sprayed cellulose 25mm
Sound absorption coefficients and NRC ratings for building materials — fiberglass, carpet, concrete, drapery, ceiling tile, etc. per ASTM C423 and ASHRAE Ch.49
| material | product variant | alpha 1000 (dimensionless) | alpha 125 (dimensionless) | alpha 2000 (dimensionless) | alpha 250 (dimensionless) | alpha 4000 (dimensionless) | alpha 500 (dimensionless) | category | description | mounting | nrc (dimensionless) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| sprayed cellulose 25mm | on solid | 0.98 | 0.08 | 0.93 | 0.29 | 0.76 | 0.75 | ceiling tile | Sprayed cellulose acoustic finish 25 mm on solid substrate | Surface | 0.74 |
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