NFPA 13, sprinkler heads and square footage
NFPA 13, sprinkler heads and square footage
(OP)
Under NFPA 13 are there specific square footage requirements per sprinkler heads? I work in a hospital environemnt and the maintenance department is doing some remodeling in one of our buildings. One rooms has only one sprinkler head and is rather large. The buildings were built in 1968. The sprinkler system is dry.





RE: NFPA 13, sprinkler heads and square footage
For light hazard occupancies, the protection area varies from 120 to 225 square feet for each sprinkler. For ordinary hazard occupancies the maximum protection area is 130 square feet. The maximum sprinkler spacing for both light and ordinary hazard occupancies is 15 feet.
For extra hazard occupancies the answer is a tad more difficult.
So what is the room used for and its construction type? With more information we may be able to help you.
See Section 8.6.2.2.1 of the 2002 edition of NFPA 13.
RE: NFPA 13, sprinkler heads and square footage
RE: NFPA 13, sprinkler heads and square footage
As a result the area of protection for standard spray sprinklers (either pendant or upright) is 200 square feet. The maximum spacing between sprinklers is 15 feet.
RE: NFPA 13, sprinkler heads and square footage
RE: NFPA 13, sprinkler heads and square footage
RE: NFPA 13, sprinkler heads and square footage
RE: NFPA 13, sprinkler heads and square footage
what temp head do you want to use??
what is fire sprayings??
do not have a copy of nfpa 13 in front of me but look at what level of head you can have in that hazard and than look at the temp chart for that and just max out the head in that temp range.
so at what point of the burning computer equipment do you want the head to activate to possibly save the rest of the equipment?????
RE: NFPA 13, sprinkler heads and square footage
If it gets hot enough to set off a sprinkler head, regardless of the temperature rating, the computer room will have significant damage. Consider a quick response, 135F sprinkler for faster response. The best protection is a gas suppression system such as FM200 AND sprinkler protection. Down side of a gas system, IF a door is open, or a vent does not close, the gas will escape and the fire will not be controlled. At the very least have a fire detection system, smoke detectors, and sprinklers.
Tom
RE: NFPA 13, sprinkler heads and square footage
For a 10'x12' paint mixing room (closed cap system), can we provide the one-hour fire barrier between this room and the retail space in the rest of the store WITHOUT an automatic sprinkler system?
Also, how do you determine the "Fire Hazard Classification"?
RE: NFPA 13, sprinkler heads and square footage
RE: NFPA 13, sprinkler heads and square footage
additionally your computer equipment should not be operating in an environment that is hot enought to set off a quick response ordinary temp. head