BS 8414 Fire Performance Criteria For External Cladding System in Malaysia

Ensuring fire safety compliance in high-rise structures is now more important than ever, with the latest BS 8414 BOMBA enforcement. This is a test that ensures the fire safety compliance of external cladding systems in high-rise structures above 18m.

6 performance criteria of external cladding system to ensure fire safety compliance in high-rise structures as shown below:

• External Fire Spread

Failure due to external fire spread is deemed to have occurred if the temperature rise above Ts if any of the external thermocouples at level 2 exceeds 600°C for a period of at least 30s, within 15 min of the start time, ts.

• Internal Fire Spread

Failure due to internal fire spread is deemed to have occurred if the temperature rise above Ts of any of the internal thermocouples t level 2 exceeds 600°C for a period of at least 30s, within 15 min of the start time, ts.

• Visible Flaming

Failure due of the system is deemed to have occurred if visible flaming, which exceeds the confines of the test rig either vertically or laterally during the full 60 minutes test period, is observed. For the purposes of this clause, visible flaming is defined as a continuous flame which is observed for more than 60 seconds duration (i.e not intermittent or glowing)

• Mechanical Performance

Failure will be deemed to have occurred if there is collapse of the system or part thereof (at least 50mm length and 200g), flaming or not, onto the floor of the test facility outside the designated crib collapse zone, see note 1, within the duration of the full 60 minute test period.

• Burning Debris and Pool Fires

Failure is deemed to occur if burning debris or a pool fire develops on the floor of the test facility, outside the designated crib collapse zone, see note 1.

Burning debris is defined as visible flaming for more than 60 seconds duration (i.e. not intermittent or glowing) within the duration of the full 60 minute test period.

• Additional Requirement (BS 8414-2 only)

Where system burn-through occurs so that fire reaches the internal surface, failure is deemed to have occurred if continuous flaming, defined as a flame with a duration in excess of 60s, is observed on the internal surface of the test specimen at or above a height of 0.5m above the combustion chamber opening within 15min of the start time, ts.

Check out the full document about BS8414.

 If you’re looking for wall panels that have passed the BS 8414 fire test, choose PrestaRoof 760 & Prestaclad RW Composite Insulated Wall Panel, which has excellent fire protection characteristics.