panneau
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The combination of high-density cellulose wadding with hemp fibres provides Biofib’ ouate with excellent sound insulation properties to give enhanced acoustic comfort. The measured and certified noise-reduction levels (FCBA tests) on standard walls are clearly superior to regulatory requirements.

| 1 - Timber-frame wall | 2 - Basic partition | 3 - Double partition |
| Facing | Fermacell | Fermacell |
| Rain-resistant | Framing 48/35 | Framing 48/35 |
| OSB 19 mm | Biofib’ ouate 45 mm | Biofib’ ouate 45 mm |
| Framing 140 mm | Biofib’ ouate 60 mm | |
| Biofib’ ouate 140 mm | Biofib’ ouate 45 mm | |
| Vapour-resistant | Framing 48/35 | |
| Framing 48/35 | Fermacell | |
| Fermacell | Fermacell | Fermacell |
| 61 dB (-2 ;-7) | 47 dB (-4 ;-11) | 69 dB (-2 ;-7) |
Room in roof
Insulation of the slopes between rafters
Cold attic spaces
Insulation unrolled on the floor
Inner partitions
Insulation between uprights
Floors & ceilings
Insulation on the floor or between joists (double layer)
| Composition | 25 % Hemp fibers, 60 % Cellulose wadding , Polyester binder | ||
| Density | 45 kg/m³ | ||
| Thickness | 45 mm | 60 mm | 100 mm |
| Thermal resistance (R) | 1,12 | 1,5 | 2,5 |
| Permeability to water vapor (Sd) | 0,09 | 0,12 | 0,20 |
| Heat capacity | 1800 Cp | ||
| Specific heat conductivity | λ 0,040 | ||
| Coefficient of resistance to diffusion of water vapor | ≤2 µ | ||
| Air noise attenuation (dB) | > 47 ( - 4 ; - 11) Partition 72/48 Fermacell / Biofib'Ouate 45 mn / Fermacell > 69 ( - 2 ; - 7) Partition Fermacell / Biofib'Ouate 45+60+45 mn / Fermacell |
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| Reaction to fire | F / Not tested | ||
| Maximum operating temperature | 120 °C | ||