Does a fire riser need to be enclosed?

Does a fire riser need to be enclosed?

NFPA states: Except as provided in 4.13. 2.1. 1.1, fire pump rooms not directly accessible from the outside shall be accessible through an enclosed passageway from an enclosed stairway or exterior exit.

What is the fire riser room?

The riser room is the room or designated space where the control room of the fire sprinkler system is kept. These system risers contain the pressure gauges, control valves, water flow alarms, and main drains for the sprinkler system.

What is a fire protection riser?

Fire riser is a component of the fire suppression system. It is a pipe connected to a pressurized water source which supplies water to the sprinkler system in the building. The fire risers typically have a waterflow switch that will activate the fire alarm system when a sprinkler head fuses.

Are floor drains required in fire riser rooms?

Each fire protection system will need to be drained at some point. NFPA 13: Standard for the Installation of Sprinkler Systems specifies that all systems must have the ability to be drained when needed.

What is in riser room?

It is a technical room (a control room) where the fire riser/sprinkler is set-up and controlled from. It is also said to be a room in a building where the fire pump and automatic sprinklers are located. This room contains pipes, valves, gauges, etc, to control the operation of the fire sprinkler.

Why do they call it a riser room?

The riser room usually also has valving for draining, isolating and testing the system. Its named after the fact that it contains the ‘System Riser’.

How do you measure a fire riser?

NFPA 13 prescribes the following minimum sizes for drains on supply risers and mains:

  1. 4” (100 mm) and larger risers or mains: 2” (50 mm) valves or larger.
  2. 2 1/2”, 3”, 3 1/2” (65 mm, 80 mm, or 90 mm) risers or mains: 1 1/4” (32 mm) valves or larger.
  3. 2” (50 mm) or smaller risers or mains: 3/4” (19 mm) valves or larger.

Why is a riser room called a riser room?

The control room is where the fire riser/sprinkler is set up. There is a fire pump and automatic sprinklers in that room. There are pipes and valves in this room that control the fire sprinkler.

Do I need a fire rated room for a riser room?

Looks like it is model code, so should be in the IFC. No rated room required unless also in a fire pump room. The 2021 IBC includes requirements for “riser rooms” per Section 902 including size, access, environment, and lighting but not a fire-resistance rating (FRR) for the walls for this room type.

What do you need to know about sprinkler system riser rooms?

Fire pump and automatic sprinkler system riser rooms shall be provided with doors and unobstructed passageways large enough to allow removal of the largest piece of equipment. Fire codes require riser rooms to be adequately sized to facilitate easy access to sprinkler equipment by workers and emergency personnel.

How much space do you need for a fire riser system valve?

Every project is unique, true, but is there any rule of thumb on space needs? In my experience, at a minimum leave at least 9 ft 2 space per fire riser system valve while maintaining at least 3 ft of space in front of the fire riser that will always remain open and free from storage.

What is the minimum temperature for a riser room?

The IFC requires that the riser room’s ambient temperature be maintained at 40°F (4°C) or higher via a permanently installed heating device to ensure the system piping and components don’t freeze. This same temperature threshold is required for fire-pump rooms in NFPA 20 and valve rooms in NFPA 13.