• Optimizing fire pump size

    Its query on selection of fire pump sizing as per NFPA20. Water demand is coming to 2300 usgpm. The selected fire pump is 2000 usgpm ?. As NFPA 20, cl no. 4.10 and A4.10 states fire pump capacity is selected within 90...
    created by dmnanjappa
  • NFPA 13 (2013) Section

    A sprinkler contractor has installed extended coverage sprinklers with the deflectors 16 inches below the concrete ceiling of a parking garage.  Construction is unobstructed.  They referenced NFPA 13 (2013) ...
    last modified by nfpa@omfps2426.com
  • Are fire pump houses required to have emergency power? The maintenance man at the local school said the temperature in the pump house dropped to 5 degrees the regular electric utility failed.

    Are pump houses required to be connected to emergency power? The maintenance man at the local school said the temperature in the pump house dropped to 5 degrees when regular utilities went out.
    last modified by pcclark8
  • smoke detectors in dormitory bathrooms

    Looking for an exception to NOT install smoke detection in a dormitory bathroom which has automatic sprinkler system , bathroom has a door 
    last modified by johnb@housing.ufl.edu
  • heat detection in place of smoke detection in a dormitory loungs/kitchen

    can a heat detector be installed in a dormitory lounge that has a cooking appliance instead of a smoke detector?
    last modified by johnb@housing.ufl.edu
  • looking for an exception to install a heat detector instead of a smoke detector in a dormitory lounge

    Can a heat detector be installed in a dormitory lounge with a cooking appliance rather than a smoke detector ?
  • Parking Structure Sprinklers

    Hello,   I have the following question... According with NFPA 88A,2019 6.4.4 sprinklers shall not be required in open parking structures. Does this apply even if the building is mixed use: 37 total floors (...
    last modified by ameneses
  • This question is about sizing a tank for fire protection

    We have a site with no water supply and all fire protection will need to come from an above ground storage tank. The question is, when sizing the tank do you need to add the site fire flow requirements and the fire sp...
    last modified by rpfeiff
  • Sidewall Sprinklers

    Any issues with installing sidewall sprinklers under exposed corrugated steel decking if direction of spray is parallel with the flutes or is the decking considered a smooth flat ceiling regardless? 
    last modified by nesselle
  • Water supply mains as per NFPA24?

    Dear everyone, does any one know the arrangement about the fire mains and its connections with the individual buildings, I have the two questions: 1.Does the water mains must be a circle or ring, is it the mandatory ...
    last modified by zhangya
  • military armament factory

    I am carrying out a project against fire in military installations where there is smoke-free powder for the manufacture of weapons ... what NFPA norm can I review?Thanks a lot  the project is in Mexico
    last modified by fire.direccion
  • Foam Delivery Time Calculations

    Hi All,   I'm currently working on a project where I need to calculate the foam delivery time to the last nozzle. I used the velocities resulted from the hydraulic calculations. The calculation was done based on...
    last modified by waelio
  • Hydraulic Calculation for Private Network, Tank Size

    Hi,   I have a private fire network with fire tank, which has set of buildings not exceeding 2 floors (21 meters), we have combined fire network with manual hose cabinets and automatic sprinkler system in buildi...
  • NFPA 850, 2020 edition

    Hello, my name is Martin. With reference to the latest edition of NFPA 850 Chapter 6 & 9.  it seems that one of the various fire suppression systems mention under item and 9.7.9 is Foam-wate...
    last modified by mch
  • Special Stages (360 stages)

    Context: Fire protection to a 360° Stage According to NFPA 101, the stage and the auditorium seating area shall be completely separated by a proscenium fire curtain/wall.   This should be applied the same ...
    last modified by ftorres
  • NFPA 13

    What is the correct way to handle the following situation:  Fully sprinklered building with multiple occupancies all off of the same sprinkler riser.  Should each occupancy have a flow switch with no flow sw...
    last modified by troy.long@salina.org
  • NFPA 13D PEX

    Does  2019 13D mean that PEX is not allowed to be used if a house has an FDC? The local AHJ requires FDC's on single family homes, and I'm wondering if I am allowed to use PEX if the manufacturer gives me...
    last modified by mountainfireprotection1
  • Can Window Sprinklers be used for Proscenium Water-Curtains?

    Can Window Sprinklers be used for Water Curtains for Proscenium Openings?   According to NFPA 101-2018, the proscenium opening shall be protected by a listed fire curtain or an approved water curtain ...
    last modified by ftorres
  • Sprinklers Under fixed Obstructions Over 4'

    With respect to NFPA 13 clause When installing sprinklers under fixed obstructions over 4' in width the sprinkler shall be located not more than 3" from the outside edge of the obstruction. Does this mean...
    last modified by rperkin9
  • 2016 NFPA 76 Telecom Room Compartmentalization

    Would like to get 2 - hr rated Telecom (Lan) Rms' enclosure by way of Section 8.3: Compartmentalization, and Section 8.3 states: "The telecommunications facility shall be separated from other occupancies wit...
    last modified by jsworks