• Life Safety Plan - Working Lab in Business Occupancy?

    Building Construction Data:  Hospital Built in 2016 in West Virginia using NFPA 2009 and IBC 2009, Type II Construction (2,2,2 Institutional and 0,0,0, Business).  There is a two hour fire barrier between In...
    last modified by mbryand
  • Changes to NFPA 1582

    Are there any proposed changes to NFPA 1582 that address the findings of recent cancer studies that indicate firefighters are at a higher risk for cancer.  I am specifically interested in changes to the sections ...
    last modified by jgrasham747
  • Illuminated EXIT signs and Live Theatre

    Greetings, I was recently at a live theatre production outside my jurisdiction and noticed the EXIT signs went out with the house lights when the show started. Being a prevention officer, I always assess my exit route...
    last modified by d_rydall
  • Change in occupancy (Mercantile to Assembly)

    I am trying to get to the bottom of an construction issue and was hoping to get some help.  Background This is occurring in a jurisdiction that has adopted NFPA 1 and 101. Significant construction project in whic...
    last modified by ffz290
  • Cellular Communications and towers

    Single Source Cellular communication may be allowed by the AHJ.   I have been told that in order to meet the intent of NFPA -72 the cell tower must have 24 hour back up as well?  Has anyone head of this...
    last modified by wmturner
  • Nozzle placement and limitations in NFPA 2001 for clean agent fire suppression system

    I need advice on the following two questions:   1. Recently we concluded an installation on the Novec1230 fire suppression system. However, once our installation has finished, the other contractor namely the Ele...
    last modified by niranjan.boteju
  • When do you have to have voice messaging in audible alarm notifications (Assembly Occupancy)?

    I have been scouring NFPA 101 and NFPA 72 and have not been able to determine when an assembly occupancy must add voice to their fire alarm system. Any help in pointing me towards the right portion of the code I would...
    last modified by jzour
  • Dissecting the Details: NFPA 99 2015 and 2018 Editions Categories

    A wonderful discussion with my friend michael.civitello inspired this conversation.   Michael pointed out that moderate sedation is permitted in both NFPA 99 2015 and 2018 Category 2 and 3 medical gas systems.&#...
    last modified by quikag82
  • Evacuation Holding Areas Healthcare

    I was wondering the standard in a health care occupancy in regards to evaucation/holding areas. In a inpatient unit, we have staff and patients in the event of a fire emergency to be directed to an unaffected smoke ba...
    last modified by mikeboodry

    created by hmc
  • elevator maintenance / inspections

    Which standards deal with elevator maintenance/inspections?
    last modified by g5alva
  • Classroom door barricades: Life safety hazard, or necessary precaution?

    Shaken by gun violence, more schools around the country are purchasing after market classroom door barricades that attach to the inside of the door, making it next to impossible to enter from the outside during an act...
    last modified by jesseroman
  • Separation distance for fuel tank

    What is the minimum distance between diesel fuel tank and Diesel generator, also between that tank and transformer? As I have a situation where fuel tank will be between two diesel generators and transformer "6....
    last modified by ehab.mechanical
  • Polyethylene plants

    Hi there, i am very new to the Xchange forums and this is my first question. does anyone out there have any experience with relevant test methods for artificial polyethylene foliage? i am based in the UK and manufac...
    last modified by riclumb
  • Wet Pipes in Exposed Area

    can we install fire protection [wet] pipes in exposed area/ or any restrictions [Temperature] 
    last modified by sjmaharaja
  • Foam Suppression Systems for Diesel Generator

    I have been trying to get the experts at NFPA to answer a few simple questions, but keep getting referred back to standards which offer little beneficial information.  Please can someone with any knowledge of die...
    last modified by msamadhin
  • Outside Stairs as Exit from the Mezzanine

    Our case is an existing business occupancy, enclosed mezzanine (1 story building) with an interior stair and an open outside stair (unenclosed) serving as the 2 means of egress from the mezzanine. NFPA 101 Section 8.6...
    last modified by jackl
  • Installing doors (clearances required)

    Hi there, I have a question regarding install of a door.  I have a double doorframe which currently has heavy duty plastic curtains.  Request made to install doors as opposed to curtains.  We have two d...
    last modified by elise.azar
  • Fire Detection for Above Suspended Ceiling Areas

    Hi, I need help to understand whether it is required to have a smoke detection for the areas between the suspended ceiling and the ceiling (Void Areas) where they are protected with an automated sprinkler system...
    last modified by kbabaoglu2011
  • Clarification of the use of nonmetallic electric conduits above false ceiling.

    Pls refer to the attached file
    last modified by abdulazizabuali