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Mike G.
Mike G., Master Electrician
Category: Electrical
Satisfied Customers: 7667
Experience:  Proven Professional 48 years Experience
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I have a class 4 building in florida, per the article

Customer Question

I have a class 4 building in florida, per the article 518.4(b) can I use romex above the dropped ceiling
Submitted: 1 year ago.
Category: Electrical
Expert:  Mike G. replied 1 year ago.

Hi, I 'm Mike G and I'll be assisting you. Romex can be above a drop ceiling only in a residential occupancy.

Customer: replied 1 year ago.
Under that section it's pretty clear that if the building was built without a fire rating, which is what class 4 is, then romex can be used, plus ther is also a 15 minute barrier reference. They occupancy code does not spply. Did you read that section 518,4(b)? Your answer isn't even what the code saids.
Expert:  Mike G. replied 1 year ago.

In a dry wall ceiling or wall you have a 15 min fire barrier, not above a suspended ceiling. See Art 334.12 A 2.

Customer: replied 1 year ago.
If you back to 1984 code ,the drop ceiling is permitted as a barrier, but forget that , I am interested in the non fire rated section of 518.4 b, which clearly states that it is permitted if there is no fire rated building, which a class 4 falls in. Do you agree?
Expert:  Mike G. replied 1 year ago.

Not above a suspended ceiling.

Customer: replied 1 year ago.
Where do you see that, in that section?
Expert:  Mike G. replied 1 year ago.

Art 334.12 A 2 is applicable