That’s a question for  your local building official.

The code section you are looking for specifically exempts sprinkler piping… 
depending on how  you read it. Some around here say “no way”. Others don’t mind.


From: Sprinklerforum [] On 
Behalf Of James Litvak
Sent: Friday, February 02, 2018 9:24 AM
Subject: Dry Riser in Stairwell

Can a dry riser be installed in a stairwell, provided there are no clearance 
issues? I know there is a building code section that doesn't allow any systems 
in a stairwell that don't serve the stairwell, but I don't know the exact 
section to check the language. The way I'm looking at it, a dry riser is the 
same as a floor control assembly, as they are both system risers. Therefore it 
shouldn't be a problem. However it's being questioned by a building code 
official. Is this allowed?

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