Acoustic absorption was measured as per the ISO 354 standard. The various data relating to acoustic absorption (αp, αw, absorption class) have been calculated in compliance with the ISO 11654 standard (LINEA + acoustic supplement).
WEIGHTED INDEX : αw = 0,75
ABSORPTION CLASS : Class C
Wall cladding
Mechanical fixing by screwing:
– Selon DTU 36-2
– Selon NF EN 14915
| Cross-section of slats | 42 mm (face) x 20 mm (height) |
|---|---|
| Spacing between slats | 19 mm |
| Centre distance of slats | 50 mm |
| Black rear counter-slats | 34 x 45 mm |
| Overall thickness | 77 mm |
| Wood species | Pine |
| Surface mass (pine) | 13,5 kg/m² |
| Openness Percentage | 38 % |
Rear surface : acoustic mineral wool tiles 2,4 kg/m2 surfaced with black fleece facing (format 600 x 600 mm ; 20 or 22 mm thickness)
Not supplied by Laudescher
The various data relating to acoustic absorption (αp, αw, absorption class) have been calculated
according to ISO 11654 standard (LINEA + acoustic supplement).
