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
IB150
PTB reference data
Original description
Unfaced fiberglass board, bonded with thermosetting resin
Material properties
Manufacturer: CertainTeed Corp.
Thickness: 1 inch, 1 1/2 inch, 2 1/2 inch
Wall distance: 0 mm, 25 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 4 variants
αw
0.87
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.55 | 0.85 | 0.95 | 0.95 | 0.95 | 0.95 |
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| Compare | Value | |||
|---|---|---|---|---|
| 2 1/2 inch | 0.31 lb/ft² | 25 mm | αw0.87 | |
| 2 1/2 inch | 0.31 lb/ft² | 0 | αw0.83 | |
| 1 1/2 inch | 0.19 lb/ft² | 0 | αw0.72 | |
| 1 inch | 0.13 lb/ft² | 0 | αw0.69 |
Dimensions: 24 x 48 inches