Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Unfaced fiberglass board, bonded with thermosetting resin
IB250
PTB reference data
Original description
Unfaced fiberglass board, bonded with thermosetting resin
Material properties
Manufacturer: CertainTeed Corp.
Thickness: 1 inch, 3 inch
Wall distance: 0 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 3 variants
αw
0.90
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.45 | 0.90 | 1.05 | 1.00 | 1.00 | 1.00 |
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| Compare | Value | ||
|---|---|---|---|
| 3 inch | 0.63 lb/ft² | αw0.90 | |
| 1 inch | 0.21 lb/ft² | αw0.69 | |
| 1 inch | 0.21 lb/ft² | αw0.63 |
Dimensions: 24 x 48 inches
Distance: 0