
1 Maximum heights and fire resistance:
Maximum heights – calculated based on a limiting deflection of L/240 at 200 Pascals (0.2kN/m2).
The maximum heights related above is for fire resistance of system to meet project requirements of BS 476: Part 22: 1987 only.
For maximum heights in relation to meeting project requirements of BS EN 1364-1:2015, please consult Technical Services.
The fire resistance rating for system using Knauf Wallboard in this column can also support fire resistance rating of system when replaced with Knauf Moisture Panel.
2 Acoustic sound reduction dB (Rw)
Systems tested or assessed in accordance with BS EN ISO 10140-1:2010+A2:2014.
Acoustic sound reduction based on ‘C’ Stud centres at 600mm centres.
The acoustic sound reduction rating for Knauf Wallboard in this column can also support Knauf Fire Panel and Knauf Moisture Panel.
3 Period in minutes: inclusive of Integrity & Insulation
* Knauf Insulation Acoustic Roll
** 50mm Knauf Insulation Acoustic Roll is needed
Note: Systems for both fire resistance and sound insulation performances are for imperforate partitions, incorporating plasterboard with all outer joints taped and filled, in accordance with Knauf recommendations.