QR equals NO draft curtain at the protection split. Don't forget the plus 15' before you put the DC in. But some times a DC is cheaper or free if you can split at a deep enough beam. Sent from my Verizon Wireless BlackBerry
-----Original Message----- From: Rod DiBona <[email protected]> Sender: [email protected] Date: Mon, 19 Jul 2010 18:48:35 To: [email protected]<[email protected]> Reply-To: [email protected] Subject: ESFR draft curtains O.K., I thought that this had been fully vetted out but I have gone back through the archives and have looked at the building codes and the standard and I am still not totally convinced. If we use ESFR's in the High Piled Storage area ( appx 20,000ft of the 60,000 ft warehouse) do we have to have a draft curtain to separate the ESFR's from the control mode sprinklers? NFPA 2007 8.4.6.4.1 says "When ESFR sprinklers are installed adjacent to sprinkler systems with standard response sprinklers, a draft curtain of non combustible construction and at least 2' in depth shall be required to separate the two areas." Seems pretty straight forward however the question that has come up is what if quick response sprinklers are used adjacent to the ESFR's?? Would the need for the draft curtains to go away assuming that the qr's will activate before the ESFR's?? The standard specifically references ".....standard response sprinklers..." I am trying to make sure that I have not been outs marted and my competition is using qr sprinklers in the non HPS areas where we bid to maintain the ESFR heads throughout to eliminate the need for draft curtains. Thanks for the help as always. Rod DiBona Rapid Fire _______________________________________________ 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)
