Putting sprinklers under open grating isn't effective because they won't
operate unless the fire plume directly hits them. Better to use solid
walkway with sprinklers.
Joe
[EMAIL PROTECTED] wrote:
Just because the floor is open grating doesn't discount the need of
sprinklers below it. Grating can still create an obstruction to
sprinkler discharge.
Craig L. Prahl, CET
Fire Protection Group
Mechanical Department
CH2MHILL
Lockwood Greene
1500 International Drive
PO Box 491, Spartanburg, SC 29304-0491
Direct - 864.599.4102
Fax - 864.599.8439
[EMAIL PROTECTED]
http://www.lg.com
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Rod
DiBona
Sent: Thursday, April 05, 2007 1:07 PM
To: [email protected]
Subject: open grate flooring
I am working on a large jail project where the architect has asked me to
provide value engineering ideas. One of the things that I am considering
bringing to his attention is the possibility of turning their upper cell
walkway into an open grate flooring of 4' or less. I was pretty sure
that this would eliminate the need for sprinklers under these walkways
but I wanted to substantiate it before I presented it. NFPA 13 02
edition 8.5.5.3.1 states " Sprinklers shall be installed under fixed
obstructions over 4ft wide such as ducts, decks, open grate flooring,
cutting tables, and overhead doors". Am I correct in assuming that if
these "floors" are 4' or less that sprinks will not be required? I
thought that I remembered that there were other requirements such as
percentage or size of openings similiar to the meshing in nursing home
curtains but I can't find it anywhere. Any help is appreciated.
Thanks,
Rod DiBona
Rapid Fire Protection
_______________________________________________
Sprinklerforum mailing list
[email protected]
http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
To Unsubscribe, send an email
to:[EMAIL PROTECTED]
(Put the word unsubscribe in the subject field)
_______________________________________________
Sprinklerforum mailing list
[email protected]
http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
To Unsubscribe, send an email to:[EMAIL PROTECTED]
(Put the word unsubscribe in the subject field)
_______________________________________________
Sprinklerforum mailing list
[email protected]
http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
To Unsubscribe, send an email to:[EMAIL PROTECTED]
(Put the word unsubscribe in the subject field)
