Intermediate polished timber floor

To exceed Rw45

For new polished T&G timber or if flooring can be lifted, pack dense polyester absorption between joists, Polyroll85/20. Fix NoisebarBASE6kg over top of joists, overlap joins 50mm staple and tape.

Lay new timber flooring or relay lifted flooring. If ceiling below is 2 x 16mm plasterboard or 1 layer 13mm SoundShield Rw45 will be achieved.