Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Fiberglass insulation board, unfaced
PTB reference data
Original description
Fiberglass insulation board, unfaced
Material properties
Manufacturer: Knauf Fiber Glass
Thickness: 3/4 inch, 1 inch, 1 1/2 inch, 2 inch
Wall distance: 0 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 6 variants
αw
0.83
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.20 | 0.60 | 1.05 | 1.15 | 1.05 | 1.00 |
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| Compare | Value | ||
|---|---|---|---|
| 2 inches | 0.50 lb/ft² | αw0.83 | |
| 1 1/2 inch | 0.38 lb/ft² | αw0.79 | |
| 1 inch | 0.50 lb/ft² | αw0.71 | |
| 1 inch | 0.33 lb/ft² | αw0.65 | |
| 1 inch | 0.25 lb/ft² | αw0.63 | |
| 3/4 inch | 0.19 lb/ft² | αw0.53 |
Dimensions: 48 x 96 in., 48 x 120 in.
Distance: 0