Impact sound insulation

IC deliver several solutions for impact sound insulation, see Memo 47 and IC Academy film stair
engineer.

TSS102 with vertical rubber flange, reduce sound impact by 22-28 dB

TSS/RVK with IC-Box SRU, reduce impact sound by 8-23 dB

TSS/RVK with vertical rubber flange, reduce sound impact by 10-12 dB