Researches of the SAUERLAND Service Center have approved that for reaching an optimal sound insulation value for doors with a multi layer core the following is very important:
|Types of boards :||10,6 VL||to||14,3 VL|
|32 S3||and||33 S3|
|32 S2||and||33 S2|
are delivered with a humidity degree of 8 till 10 %.
This humidity later corresponds to the conditioning humidity of the door in the living area and should be maintained till the usage.
The climatisation of the sandwich-cores has a positif effect on:
Maintaining the sufficient conditioned humidity is made possible by :
Before giving the sound insulation value, the doors have to be: