Solution
Plasterboard types were reduced and advice offered to the architect on a number of performance criteria to ensure the most price competitive specification was used. The main wall type required an acoustic performance of Rw 40 dB, and by working with the architect British Gypsum were able to standardise the specification throughout to include 12.5mm Gyproc SoundBloc where 15mm Gyproc SoundBloc had previously been specified.