Uni-click Transitsound Underlay (UTS01)
Transit sound combi floor underlay 1.2m x 12.5m, 15m2 per roll, thickness 3.5mm
Transit sound is what you hear when you walk across a floor above you, with transit sound underlay has been designed to minimise that sound
It also includes damp proof member (dpm) this means it is protected against raising damp.