John & Bob,
Thanks.
Regards,
G. Tim Stone
G. Tim Stone Consulting, LLC
NICET Level III Engineering Technician
Fire Protection Sprinkler Design
and Consulting Services
117 Old Stage Rd. - Essex Jct., VT. 05452
CELL: (802) 373-0638 TEL: (802) 434-2968 Fax: (802) 434-4343
[email protected]
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of John
F
> Hoffman
> Sent: Thursday, March 13, 2014 2:34 PM
> To: [email protected]
> Subject: RE: Warehouse Ceiling Question?
>
> Depends on whether it is an NFPA 13 job or an FM job. NFPA does not say
> but FM calls the top of the flutes as the ceiling if they are wide enough
> between flutes. Don't recall the width offhand but think if 6 inches wide
> then you use the top of the flutes.
>
> John Hoffman
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of G.
Tim
> Stone
> Sent: Thursday, March 13, 2014 1:32 PM
> To: [email protected]
> Subject: Warehouse Ceiling Question?
>
> What is the Ceiling in a Warehouse?
>
>
>
> Scenario:
>
> Packaged Steel Frame Building. Red iron frames spaced 30' between. 12"
> steel Z shaped purlins, spaced 3'-7" on center on top of the Red Iron
> frames.
> Steel Q-Deck pan (about 3.5" - 4" deep) attached to top of the Z purlins.
>
> High point of the building is 30'-0" AFF, ΒΌ : 12 roof pitch. The building
> insulation is on top of the Q-Deck. No vinyl insulated blanket that we
> usually see in warehouse construction.
>
>
>
> The occupancy is Group A Plastics, High Piled and rack storage, Storage
> height to 17'-0 AFF, ESFR Pendent Sprinklers, Depending on Manufacture
> used, deflectors can be up to 18" down below "CEILING".
>
>
>
> Is the "CEILING" at the point where the Q-Deck that rests on top of the
> purlin or is it the top of the pocket formed in the Q-Deck? I will
> rephrase, Is the "CEILING" at the top of the purlin or 3.5" - 4" higher
> (high point of Q-Decking)?
>
>
>
> Thank you in advance for clarification.
>
>
>
> Regards,
>
> G. Tim Stone
>
>
>
> G. Tim Stone Consulting, LLC
>
> NICET Level III Engineering Technician
>
> Fire Protection Sprinkler Design
>
> and Consulting Services
>
>
>
> 117 Old Stage Rd. - Essex Jct., VT. 05452
>
> CELL: (802) 373-0638 TEL: (802) 434-2968 Fax: (802) 434-4343
>
> [email protected]
>
>
>
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