Sound Transmission
RW values for various forms of Rapidwall construction:
Main Element | Additional Lining | Attachment Method | Total Thickness (mm) | RW |
---|---|---|---|---|
Single leaf Rapidwall, unfilled | - | - | 123 | 28 |
Single leaf Rapidwall filled with 60kg/m3 cellulose fibre insulation | - | - | 123 | 31 |
Single leaf Rapidwall filled with 90kg/m3 cellulose fibre insulation | - | - | 123 | 33 |
Single leaf concrete filled Rapidwall | - | - | 123 | 49 |
Single leaf Rapidwall filled with 90kg/m3 cellulose fibre insulation | 13mm Gyprock | Direct-fixed with screws and thin glue daubs | 136 | 36 |
Single leaf concrete filled Rapidwall | 13mm Gyprock and Tontine TSB3 polyester insulation | Standard 28mm Rondo 129 furring channels | 164 | 45 |
Single leaf concrete filled Rapidwall | 13mm Gyprock and Tontine TSB3 polyester insulation | Heavy gauge (1.2mm) Rondo 38mm top hat sections | 174 | 54 |
Single leaf concrete filled Rapidwall | 13mm Gyprock and Tontine TSB3 polyester insulation | Standard 28mm Rondo 129 furring channels and CSR Gyprock resilient mounts | 177 | 55 |
Single leaf concrete filled Rapidwall | 13mm Gyprock and Tontine TSB3 polyester insulation | Separate row of 51mm steel studs spaced 10mm from Rapidwall | 197 | 55 |