Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
CertainTeed IB420 unfaced fiberglass board, bonded with thermosetting resin
IB420
PTB reference data
Original description
CertainTeed IB420 unfaced fiberglass board, bonded with thermosetting resin
Material properties
Manufacturer: CertainTeed Corp.
Thickness: 25.4 mm, 38.1 mm, 76.2 mm
Wall distance: 0 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 3 variants
αw
0.93
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.55 | 1.00 | 1.05 | 1.00 | 1.00 | 0.95 |
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
| Compare | Value | ||
|---|---|---|---|
| 3 inch | 1.10 lb/ft² | αw0.93 | |
| 1 1/2 inch | 0.53 lb/ft² | αw0.74 | |
| 1 inch | 0.35 lb/ft² | αw0.73 |
Dimensions: 24 x 48 inches
Distance: 0