British Gypsum GypFloor Silent floor systems
4 system references
We are a supply and fit installation contractor, not the manufacturer. Information here is reproduced from manufacturers' literature for reference only; always confirm it directly with the manufacturer before specifying, ordering or installing.
Floor and ceiling build-ups for separating floors over timber joists. Use the filter to narrow by performance or board.
| Reference | Build-up | Rw+Ctr (dB) | Rw (dB) | Lnw (dB) | Fire integrity (mins) | Fire insulation (mins) |
|---|---|---|---|---|---|---|
| C204003 | 21mm T&G wood flooring on Gyproc Plank 19mm on Gypframe SIF Floor Channel on timber joists 45 x 195mm solid joists at 450mm centres. Gypframe RB1 Resilient Bars fixed at 450mm centres lined with an inner layer of Gyproc Plank 19mm and an outer layer of Gyproc FireLine 12.5mm with 100mm Isover Spacesaver Ready-Cut in the cavity. | 51 | 63 | 55 | 60 | 60 |
| C204003 MR1 | 21mm T&G wood flooring on Gyproc Plank 19mm on Gypframe SIF Floor Channel on timber joists 45 x 195mm solid joists at 450mm centres. Gypframe RB1 Resilient Bars fixed at 450mm centres lined with an inner layer of Gyproc Plank 19mm and an outer layer of Gyproc FireLine MR 12.5mm with 100mm Isover Spacesaver Ready-Cut in the cavity. | 51 | 63 | 55 | 60 | 60 |
| C204006 | 21mm T&G wood flooring on Gyproc Plank 19mm on Gypframe SIF Floor Channel on timber joists 45 x 195mm solid joists at 450mm centres. Gypframe RB1 Resilient Bars fixed at 450mm centres lined with two layers of Gyproc SoundBloc 15mm with 100mm Isover Spacesaver Ready-Cut in the cavity. | 48 | 61 | 56 | 60 | 60 |
| C204006 MR1 | 21mm T&G wood flooring on Gyproc Plank 19mm on Gypframe SIF Floor Channel on timber joists 45 x 195mm solid joists at 450mm centres. Gypframe RB1 Resilient Bars fixed at 450mm centres lined with an inner layer of Gyproc SoundBloc 15mm and an outer layer of Gyproc SoundBloc MR 15mm with 100mm Isover Spacesaver Ready-Cut in the cavity. | 48 | 61 | 56 | 60 | 60 |
System references, build-ups and performance figures are British Gypsum's own data, reproduced here from British Gypsum White Book Specification Selector (EN systems) for reference only, with credit to British Gypsum.
Each reference links to British Gypsum's page for the full, current specification - always specify from British Gypsum's own documentation, HCI will not be held liable for a misspecification where this page has been used in lieu of the true manufacturer.
If you represent British Gypsum and have a query pertaining to this library, please email info@howeceilings.co.uk. Data retrieved 10 October 2026.
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