Biwall is a pre-coupled panel composed of rubber layer and a polyester fibre layer,
suitable for cavity walls, light walls and suspended ceilings.

| Technical Characteristics | Biwall | ||
|---|---|---|---|
| 30 | 40 | 50 | |
| Nominal Thickness (mm) | 30 | 40 | 50 |
| Panel Lenght (m) | 1,2 | ||
| Panel Width (m) | 1 | ||
| Superficial mass (Kg/m3) | 8,60 | 8,90 | 9,20 |
| Airborne sound insulation (Rw)* (dB) | 52 | 54 | 55 |
| * Calculated value according to EN 12354-1. |
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