Interested in the views of my most learned colleagues. In an argument with my client regarding a fire wall they’ve decided to fully glaze. This fire wall is protecting a single means of escape safe path, they’ve put in --/60/30sm glazing and I’m arguing it should be --/60/60sm glazing. They’ve pointed to C/AS2 4.16.1 and table 4.2 which permits ‘closures’ …“e.g for passage of …light” to only have --/60/30sm rating.
My argument is that this is missing the intent of C/AS2 and NZBC and an approx 4m long by 3m high fire wall protecting a safe path needs to have a --/60/60sm rating!
C/AS2 4.2.1 is the definitive answer for me (“glazing in fire separations shall be fixed fire resisting glazing having the same FRR values for integrity and insulation as the fire separation”) but seems to contradict 4.16.1?!