| Noise reduction in buildings is an extensive and complex
field which requires the planner's knowledge. |
|
|
At this point we recommend the brochure of the Timber
Information Service: "Timber Construction Manual Series 3, Part
3, Section 3" |
|
|
or the Swiss Lignum:
"
IP Timber 933 d : Sound insulation of intermediate floors made from timber".
|
|
|
The following examples of constructions with the associated
sound insulation values have also been taken from the Lignum brochure
mentioned. (The associated boundary conditions should be taken from the
source!) |
Floor structure |
|
Weight |
Constr. height |
Airborne noise R’w |
Impact noise L’n,w |
| |
|
kg/m2 |
mm |
dB |
dB |
 |
 |
Particle board, 25 mm |
|
Mineral fibre impact noise insulation board, 12/10 mm,
80 to 110 kg/m3 |
|
Profidecke, 120 mm |
|
72 |
155 |
49 |
67 |
 |
|
Particle board, 25 mm |
|
Polystyrene impact noise board, elasticised, 22/20 mm |
|
Profidecke, 120 mm |
|
73 |
165 |
47 |
68 |
 |
|
Particle board, 25 mm |
|
Dry fill, 30 mm |
|
Profidecke, 120 mm |
|
76 |
175 |
49 |
70 |
 |
|
Cement supporting floor, 50 mm |
|
Waterproof layer, 0.2 mm |
|
Mineral fibre board, 12/10 mm, 80 to 110 kg/m3 |
|
Profidecke, 120 mm |
|
164 |
180 |
53 |
66 |
 |
|
Particle board, 25 mm |
|
Mineral fibre impact noise insulation board, 12/10 mm,
80 to 110 kg/m3 |
|
Concrete slab, dry, 500/500/50 mm, 120 kg/m2 Slab gap approx.
2 mm |
|
Noise impact insulation fleece, 3 mm |
|
Profidecke, 140 mm |
|
182 |
228 |
56 |
61 |
|
