Keep on laying the Tecsound until eventually your subfloor is completely protected, laying Each individual sheet/roll correct up to the past. The gain this presents is a increased effects reduction in comparison to the MuteMat three, that has a tough layer in contact with the floor instead. DELTA IIC (ΔIIC): https://acousticfloorunderlay41805.bloguetechno.com/acoustic-floor-underlay-fundamentals-explained-75043781