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, ¼ : 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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