Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Glass wool building blanket with perforated foil facing
Flexitel
PTB reference data
Original description
Glass wool building blanket with perforated foil facing
Material properties
Manufacturer: Bradford Insulation
Thickness: 25 mm, 50 mm
Wall distance: 0 mm
Surface: perforated foil facing
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 2 variants
αw
0.93
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.40 | 0.85 | 1.10 | 1.20 | 1.05 | 1.00 |
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| Compare | Value | ||
|---|---|---|---|
| 50 mm | 1.2 kg / m² | αw0.93 | |
| 25 mm | 0.60 kg / m² | αw0.70 |
Dimensions: 120 cm x 15 m
Distance: 0