Fire Riser Locations

[Gogo707]

Hello all,

Working with an architect here. They are claiming that the fire sprinkler riser is required to be in a riser room or concealed per NFPA 13. I am completely unaware of this code requirement. I have seen multiple exterior risers on the outside of a building.

Thinking he is confused with a possible ordinance he’s come across before. But just wanted to confirm.

 

[mtlogcabin]

[F]​

Automatic sprinkler system riser rooms and fire pump rooms shall be maintained at a temperature of not less than 40°F (4°C). Heating units shall be permanently installed.

[F]AUTOMATIC SPRINKLER SYSTEM. An automatic sprinkler system, for fire protection purposes, is an integrated system of underground and overhead piping designed in accordance with fire protection engineering standards. The system includes a suitable water supply. The portion of the system above the ground is a network of specially sized or hydraulically designed piping installed in a structure or area, generally overhead, and to which automatic sprinklers are connected in a systematic pattern. The system is usually activated by heat from a fire and discharges water over the fire area.

Maybe a dry stand pipe on the outside of a building but a riser and the related equipment, gauges, switches etc. need to be kept above freezing temps

 

[arwat23]

As far as I'm aware, code only implies that it should be inside so that it's accessible (nothing blocks it), it's supervised (so it can't be tampered with easily), and so it's protected from freezing (for obvious reasons). Many of the jurisdictions I work in require it inside a structure most of the time, but I have had the option to place them on the exterior on occasion. I usually just default to interior because it's the smarter move imo and the local fire departments prefer that location even when it's not required.