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Are there any fire resistance rating requirements for steel structure supporting equipment on building roof in NFPA?

Question asked by jhpark0325 on Feb 12, 2020
Latest reply on Oct 5, 2020 by lachlanconsiden

The below section is Polypropylene Extrusion Building in Petrochemical Processing Plant.

As I understand NFPA 5000 Table 7.4.1, Construction Type II-222 can be applied for this industrial building by the building height 40m.

But I cannot know requirement of fire resistance rating for steel structure supporting equipment above building roof.

As I know, there are only recommended practice of fire resistance rating for structure supporting fire potential equipment in API RP 2218.

Please let me know whether the fireproofing is required for this structure or not as per NFPA.

Thank you

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