OK, then what about the rule about not mixing standard and QR sprinklers in the same space? Are above and below sprinklers with an 11" gap considered to be the same space or separate spaces? If the cloud was 10 ft x 10 ft in the middle of a 30 x 30 room, would you say the same? However, there is also something out there about calculating only one level or the other, but not necessarily both (I believe in 13-2010, but I am far from adept with this addition and have yet to find it). If that is the case does this overrule the mixing ban since only one level or the other is expected to react to the fire?
At 08:01 PM 7/12/2011, you wrote: >Todd, > >I would say that since this is light hazard you should use the QR heads. > >Cliff Whitfield, SET >President >Fire Design, Inc. >850-526-1886 > > > >[email protected] >www.fire-design.com > > >-----Original Message----- >From: [email protected] >[mailto:[email protected]] On Behalf Of Todd Williams >Sent: Tuesday, July 12, 2011 5:12 PM >To: [email protected] >Subject: QR sprinklers and clouds > >I am working on a project where a cloud ceiling is being installed in part >of the space. The gap is 11" between the cloud and the rest of the ceiling >on each side. The existing sprinklers at the deck at standard response. Do >the sprinklers below the cloud need to be SR as well or can the be QR? >(Light Hazard occupancy) > >Todd G. Williams, PE >Fire Protection Design/Consulting >Stonington, CT >860.535.2080 >www.fpdc.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) Todd G. Williams, PE Fire Protection Design/Consulting Stonington, CT 860.535.2080 www.fpdc.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)
