1 Maximum heights and fire resistance:
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.
Please consult Technical Services for increased heights by emailing firstname.lastname@example.org or use the webchat.
Note: Systems for fire resistance performances are for imperforate partitions, incorporating plasterboard with all outer joints taped and filled, in accordance with Knauf recommendations.