Intermediate floor treated from ceiling below

To exceed Rw45

Ceiling lining below floor is removed, pack dense polyester absorption between joists, Polyroll85/20. Fix NoisebarBASE6kg to underside of joists, overlap joins 50mm staple and tape.

Line ceiling below with 2 x 16mm plasterboard or 1 layer 13mm SoundShield and Rw45 will be achieved.