Load-bearing Schöck Tronsole® types can be upgraded to surrounding soundproof systems using Schöck Tronsole® type L. Sound insulation measures can only be effective if all joints between staircase wall and staircase (steps and landing) remain free from soiling. All sound insulation performance figures for Schöck Tronsole® types relate to systems incorporating type L in the joint areas. Alternatively, a sufficiently wide architectural air joint is also possible. It must, however, be wide enough to prevent acoustic bridges forming when dirt drops through.
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