Now that I looked at §12.3(3) it supports that the extension of the
higher demand from an upper level to a lower level isn't required, if
that ceiling change is located an aisle of 2' in depth on either side.
For the record, Bruce - what is the concern regarding QR sprinklers?
They're not required for an OH occupancy, right?
sincerely,
*Ken Wagoner, SET*
*Parsley Consulting
500 West Mechanic Street
Harrisonville, Missouri 64701-2235*
*Phone: (760) 745-6181 *
*Visit the website
<https://linkprotect.cudasvc.com/url?a=http%3a%2f%2fwww.parsleyconsulting.com%2f&c=E,1,Y5zKJKPEh1mBEBqSR-VE9cUKl5y-eyP8BpvmE_5j9ZqW2eJbNphYzrCMBZ-2YuX6d-RRkHI4gQ1FV-cvOeCfRC58uZS9NiToZv2mx7909oCqLvCW_n5hDHeK&typo=1>*
On 8/9/2022 12:33 PM, Brett Peters wrote:
NFPA 13 12.3 - elevation change of at least 2'-0 and above an aisle
with a minimum of 2'-0 of clearance to each side of the center of the
aisle.
Thanks
Brett Peters
General Manager Installation & Design
Proudline Fire Protection Services Ltd.
[email protected]
780 490 7602 office ext 202
780 490 7605 fax
780 777 0568 cell
780 718 2676 24h
Visit us at www.proudline.ca <http://www.proudline.ca/>
Proudline now offers ULc listed monitoring services, please contact
[email protected] for more information
On Tue, Aug 9, 2022 at 11:12 AM <[email protected]> wrote:
We have a building where there is a roof height that changes
elevation by 10’-0”.
The higher roof will have ESFR protection. The lower roof will be
ordinary hazard.
I would like to utilize extended coverage sprinkler heads at the
lower roof on a spacing of 20’-0” x 20’-0”
This spacing voids the QR rating of the extended coverage sprinkler.
I thought that there was something in the code that I cannot find
where it talks of change in roof height.
So my question is would the change in roof height serve at a draft
curtain between the 2 systems.
Bruce Hermanson
President TSFP Holdings Inc.
(734) 454-1350
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