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20 minute fire rated door assembly codes

Question asked by rickventurini1 on Jun 21, 2018
Latest reply on Jun 25, 2018 by rickventurini1

We are designing a new fire rated pet door to be installed in an existing residential attached garage fire wall or door.


I would like to know what design requirements would be required to meet UL/NFPA for a Hold open, sliding, 20 minute fire rated assembly as is shown in the attached video.


I believe it does not have to have hose stream test. Any reference to codes would be greatly appreciated.


Thanks in advance