There was a project in the Mid Atlantic region in which the Architect specified "Institutional" QR heads in a "mid rise" student housing building. Three days after the students moved in there was a fairly large water damage claim resulting from damage to the "Institutional" sprinklers from the students throwing around balls, etc. Needless to say it occurred on the top floor level and flowed downhill. Institutional type sprinkler heads should be used in the occupancy that they were designed for.
The last frat house that we worked on the Owner wanted the pipe to be able to support at least five times the weight of the water filled pipe plus 500 pounds and wanted the strongest head guard that is manufactured to be used on all sprinkler heads in the frat house and wanted all pipe to be scheduled 40. Jim Davidson Davidson Associates Fire Protection * Medical Gas * Code Consulting 302-994-9500 Fax:302-234-1781 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Dewayne Martinez Sent: Wednesday, November 10, 2010 10:01 AM To: [email protected] Subject: RE: QR sprinklers in R2 occupancy Yep it is a frat house. I am trying to convince the arch to go with the concealed type res sprinklers. The only place we would have to use semi-recessed is when throwing across the 4/12 ceilings. Thanks for the information. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of George Church Sent: Wednesday, November 10, 2010 8:57 AM To: [email protected] Subject: RE: QR sprinklers in R2 occupancy Correct. And if the total # of heads in a dwelling unit is 4, you can QR. Finally, someone treating a fraternity commiserate with the exposure? Or would concealed heads be enough protection from mechanical injury so you could use the residential heads you should use? Threat of someone hanging themselves? Don't forget you'll need .1 for the QRs vrs .05. glc -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Dewayne Martinez Sent: Wednesday, November 10, 2010 8:28 AM To: [email protected] Subject: QR sprinklers in R2 occupancy I have a R2 occupancy that is to be sprinklered per NFPA13R (07ed). The architect wants to use quick response institutional sprinklers. It appears that per 6.7.7.1.3 I can use QR sprinklers inside the dwelling unit only if it meets the definition of a compartment with no more than 4 sprinklers. If the dwelling unit contains multiple rooms (ie: bathroom, kitchen, ect.) then this unit would not qualify because it is not single compartment correct? What if with all the compartments together there would only be 4 sprinklers? Thanks, Dewayne Martinez Design Build Fire Protection New Berlin, WI <http://www.designbuildfire.com/> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
