wpic
2015-11-04 17:15:18
- #1
With 69 dB, the developer promises a value corresponding to sound insulation level (SST) III, thus a high sound insulation level (57 dB = SST I (normal), 63 dB = SST II (increased), 68 dB = SST III (high) according to VDI 4100 or E DIN 4109-10). With the combination of 2 x 15 cm KS, joint and joint insulation, it theoretically achieves only 62 dB (ground floor, no basement) up to 68 dB from the 2nd upper floor with KS / RDK 2.0. However, it at least guarantees increased sound insulation.
Find out which KS stone he specifies (density class RDK 1.8 or 2.0), whether the house has a basement (foundations should then also be separated with a joint) or whether it stands without a basement on a slab (slab: likewise, with separating joint). The joint should then also be 70-80 mm wide with 40 mm mineral fiber insulation board according to DIN 4109, supplement 1, 1989-11, or according to DIN 18165, part 2, application type T. The adjacent walls / facing walls must also be separated in the same way by a joint. These details and specifications should be provided by the developer in his construction description.
Interior facing shells can only provide additional sound insulation according to the manufacturer's specifications, which is difficult to achieve in reality. Retrofitting sound insulation is costly and difficult to calculate.
It is also recommended, before purchase or successively during the execution of the construction project, to have all these details from the construction description checked in terms of acceptance of the construction work by an independent specialist planner / construction supervisor before they are installed/built in.
Find out which KS stone he specifies (density class RDK 1.8 or 2.0), whether the house has a basement (foundations should then also be separated with a joint) or whether it stands without a basement on a slab (slab: likewise, with separating joint). The joint should then also be 70-80 mm wide with 40 mm mineral fiber insulation board according to DIN 4109, supplement 1, 1989-11, or according to DIN 18165, part 2, application type T. The adjacent walls / facing walls must also be separated in the same way by a joint. These details and specifications should be provided by the developer in his construction description.
Interior facing shells can only provide additional sound insulation according to the manufacturer's specifications, which is difficult to achieve in reality. Retrofitting sound insulation is costly and difficult to calculate.
It is also recommended, before purchase or successively during the execution of the construction project, to have all these details from the construction description checked in terms of acceptance of the construction work by an independent specialist planner / construction supervisor before they are installed/built in.