SINTON® HT-V decouples stair flights from landings and from the impact noise of footfall with an insulation element 12 mm thick The load is transferred by shear bars that run through the insulation. These transfer the positive shear forces. The sound insulation elements meet the minimum sound insulation requirements according to DIN 4109. SINTON® HT-V is suitable for use in both precast and in-situ concrete staircases. The landing can be made of in-situ concrete or as a semi-precast element. SINTON® HT-V conforms to fire resistance class R90.