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    Condo firewall seperation

    Condo firewall seperation

    New postby Marc M on Mon Apr 12, 2010 4:46 pm

    Jerry, do you know what the firewall seperation is between two condos side by side. I thought is was 2 hour.
    Marc M
     
    Posts: 173
    Joined: Sat May 09, 2009 10:24 am

    Re: Condo firewall separation

    New postby Jerry Peck - Codeman on Mon Apr 12, 2010 5:32 pm

    Hi Marc,

    What you are referring to are "Fire Partitions" instead of "Fire Walls", with Fire Partitions being under Section 708. Fire partitions have a minimum required fire-resistance rating of not less than 1 hour, with exceptions allowed to 1/2 hour with automatic sprinkler systems meeting certain requirements.

    From the 2006 IBC: (underlining and bold are mine)
    - SECTION 708
    - - FIRE PARTITIONS
    - - - 708.1 General. The following wall assemblies shall comply with this section:
    - - - - 1. Walls separating dwelling units in the same building.
    - - - - 2. Walls separating sleeping units in occupancies in Group R-1 hotel, R-2 and I-1 occupancies.
    - - - - 3. Walls separating tenant spaces in covered mall buildings as required by Section 402.7.2.
    - - - - 4. Corridor walls as required by Section 1017.1.
    - - - - 5. Elevator lobby separation as required by Section 707.14.1.
    - - - - 6. Residential aircraft hangars.
    - - - 708.2 Materials. The walls shall be of materials permitted by the building type of construction.
    - - - 708.3 Fire-resistance rating. Fire partitions shall have a fire-resistance rating of not less than 1 hour.
    - - - - Exceptions:
    - - - - - 1. Corridor walls as permitted by Table 1017.1. (Jerry's note: This section allows the walls between the corridor and the dwelling unit to be 0.5 hours R occupancies with a sprinkler system meeting certain requirements.)
    - - - - - 2. Dwelling and sleeping unit separations in buildings of Type IIB, IIIB and VB construction shall have fire-resistance ratings of not less than 1/2 hour in buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1.

    Keep in mind, though, that a 1/2 hour fire-resistance rated wall is constructed the same as a 1 hour fire-resistance rated wall.
    Jerry Peck - CodeMan
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    Re: Condo firewall seperation

    New postby Marc M on Mon Apr 12, 2010 6:33 pm

    Fantastic, thank you.
    Marc M
     
    Posts: 173
    Joined: Sat May 09, 2009 10:24 am


    Return to Drywall / gypsum board: non-fire resistance rated; Type X fire-resistance rated; plaster board (blue board); rock lath (for plastering); exterior gypsum sheathing



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