WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Wood fibers with portland cement binder, with 2 1/2 inch fiberglass batts in cavities between furring
Type M-173 – Fibroplank
PTB reference data
Original description
Wood fibers with portland cement binder, with 2 1/2 inch fiberglass batts in cavities between furring
Material properties
Manufacturer: Martin Fireproofing Georgia
Thickness: 1 1/2 inch
Wall distance: 40 mm
Backing: 2 1/2 inch fiberglass batts
Surface: perforated facing
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.82
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.40 | 0.80 | 1.25 | 0.75 | 0.80 | 0.90 |
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Method (354): Measured