I am about to board out a bedroom floor in a new extension with 7" T&G boards. It is over a living room and I want to cut noise transfer downwards as much as poss. Iv'e put 100mm Rockwool Flexi between the joists (400mm crs), but just wonder whether it is worth putting anything between the boards and the top of the joists to dampen footfall. I could add more Rockwool but I'm not sure if this will affect the footfall noise. Anyone know of an acoustic product which could be cut into strips and laid along the top of the joists? Also will this be practical as the boards will be fixed with 65mm cut flooring brads which may then come loose unless the resilient layer is non compressible.
- posted
16 years ago