Quality fire-rated doors with appropriate seals and equipment resist warm and smoke migration
https://www.livebinders.com/b/3722298?tabid=49737358-f248-b481-8119-7ed15e9cb5ed
Quality fire-rated doors with correct seals and hardware stand up to warm and smoke migration, leading organized discharges and securing devices, papers, and fit-outs that represent considerable industrial value.