I have to constantly remind the estimators that 8.15.23.3 only works if
it's open on one side.

Every time this had come up after we are awarded the project we've managed
to convince the GC or owner to add a ceiling in these small rooms.

On Fri, Apr 13, 2018 at 6:49 PM John Irwin <john.ir...@dynafire.com> wrote:

> I've seen this. Never had too much trouble getting a ceiling added when I
> give them the add alternate for installing sprinklers at the roof.
>
> Checking wall heights is usually one of the first things I do when opening
> a fresh set of plans. Half a dozen different color highlighters and a cup
> of coffee...
>
> John Irwin
> DynaFire Inc.
> Tampa Fire Sprinkler Division
> 727-282-9243
>
> This email was sent from a mobile device. Please forgive brevity,
> typographical errors, and grammatical gaffes.
> On Apr 13, 2018, at 6:42 PM, Ed Kramer <e...@bamfordfire.com> wrote:
>
>> This is something we’re seeing occasionally and I’m wondering if others
>> are seeing it also.
>>
>>
>>
>> A typical office area within a noncombustible building.  All rooms within
>> the greater area have lowered finished ceilings, are mostly light hazard,
>> and the space above is noncombustible and (almost) concealed.  A small
>> mechanical room (or 2 or 3) is located among the various offices.  This
>> mech room is less than 130 sf, so the floor area can be protected with 1
>> sprinkler.  However, the A/E has decided this room doesn’t need a ceiling
>> and the perimeter walls can stop 6” above the ceiling height of the
>> adjacent rooms.  This makes the space above the surrounding offices
>> noncombustible but not truly concealed.  See below.
>>
>>
>>
>>
>>
>> NFPA 13 (2013) tells me I have to sprinkler the entire noncombustible
>> space above the offices.  8.15.23.3 doesn’t apply since it’s open on all 4
>> sides.  We’re working with GC to convince them to add a ceiling or to
>> extend the walls up to the roof deck.  It’s just way too easy to overlook
>> this kind of seemingly minor detail when bidding, and difficult to get a
>> change order (or walls/ceilings added) after the contract’s signed.
>>
>>
>>
>> So, just wondering if anybody else is seeing this issue.
>>
>>
>>
>> Ed Kramer
>>
>> Bamford Fire
>>
>>
>>
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>>
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-- 

Benjamin Young
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