b'7Termination of the test The test was terminated at 60 minutes in accordance with the standard.8Test results 8.1Critical observations The following observations were made during the fire-resistance test: 0 minutes - Alight cribs placed in position. 29 seconds - Specimen moved into positionexposure to 29 kW/m. 2:36 minutes - Specimen moved into positionexposure to 21 kW/m. 3:29 minutes - Specimen moved into positionexposure to 14 kW/m.Crib #1 (inside the gutter) has ceased flaming. 4:18 minutes -Crib #4 has ceased flaming. 4:29 minutes -Specimen moved into positionexposure to 11 kW/m. 5:29 minutes -Specimen moved into positionexposure to 8 kW/m. 6:47 minutes - Crib #3 has ceased flaming. Smoke is observed inside the roof cavity. 7 minutes - Smoke is observed at the top of the roof. 10 minutes - Smoke has ceased being emitted from the specimen. 15 minutes - Radiant heat source shielded from the specimen. No flaming, cracking or signs of any 3-mm through gaps. 16 minutes -Radiometer is positioned 250-mm from the centre of the exposed face of the roof specimen. 20 minutes -Pilot flame was applied over the exposed face of the specimenno ignition was noted at this time. 33 minutes -Pilot flame was applied over the exposed face of the specimenno ignition was noted at this time. 60 minutes - Test terminated. Post test, the back face of the roof assembly was removed to check for any gaps around the vents from inside the roof cavity. No through gaps >3-mm were foundin the specimen. 8.2Radiant heat flux Figure 1 shows the curves of target and incident radiation versus time recorded during the test period. Figure 2 shows the curve of received radiation versus time at 250-mm from the fire exposed face of the specimen.FSZ 2411 | page9 of 40'