Conflict of air tightness buildings and fire safety

We need to understand the conflict of air tightness building and fire safety. And to provide the solution to mitigate the risks, these are covered in AS/NZS 1668.1 mainly used for commercial buildings, and the fundamentals are the same for residential homes. Responsible designers must make sure people are able to open the door to escape, clause 4.7 stated the max force to open doors. We must recognise cross discipline risks.