First, make sure the terms of management. If you lower the wooden floor sound insulation, are management terms, prohibited the flooring, but I have TSUKENAKU sound issue. It may also affect the sound even walk downstairs normallyWARANAKATTA. If you switch to the tatami flooring and carpets, which are often prescribed a level of performance of flooring when remodeling in terms of management, it is important to keep in check. origination fee to avoid problems over the noise floor of the floor, re-flooring to protect it if you can.