Timothy,
I must not be understanding the issue. Are you describing a rectangle
15' x 10' (150 square feet) which has no sprinkler protection in an
otherwise fully sprinklered building?
*Ken Wagoner, SET
*Parsley Consulting***
*350 West 9th Avenue, Suite 206
*Escondido, California 92025
*****Phone 760-745-6181*
Visit our website <http://www.parsleyconsulting.com/> ***
On 10/14/2015 1:40 PM, Easter, Timothy wrote:
The facility is a non-combustible business occupancy. Basically, two office areas were
converted into a small work out area by removing a wall and raising a section of the
ceiling. The section that is higher has no sprinkler heads in it leaving a void above all
other lower sprinkler heads. The sprinkler heads in the lower corners meet coverage on
the horizontal space but leaves a 29" gap above the water spray to the ceiling
above. The square measures 15'x10'x29" above the rest of the ceiling the room.
Contractor has used grated panels leaving the space above the ceiling open to mechanical
duct work above, all other walls go to the roof deck. My questions are:
1- DO WE NEED TO ADD SPRINKLER HEADS AT THE CEILING IN THE VOID?
My answer is per NFPA 13 section 8.6.4.1.1.3(B) a sprinkler head is not needed
since can be considered flat ceiling.
2-CAN THE SPACE BE OPEN LIKE THAT TO THE MECHANICAL DUCT WORK?
My answer is the grated panels should be replaced with regular panels, however
I cannot find a code reference.
Feel free to contact me with any questions.
Regards,
Timothy Easter, E.I.T.
Graduate Fire Protection Engineer
Direct: (757) 383-6217
[email protected]<mailto:[email protected]>
AECOM
11832 Rock Landing Drive Suite, 306, Newport News, Virginia 23606
www.aecom.com
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