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Fire dampers on Firewalls

Question asked by anfernandes on Oct 18, 2018
Latest reply on Oct 26, 2018 by milt.werner

Is it possible to install fire dampers on #firewalls? And if it is 4 hours rated firewall?


Can you provide any #NFPA 1 and #NFPA 221 reference for this?


Also, which approvals are required for this equipment?