His reasoning is flawed - He says that the dry system will result in a delay in water getting to the fire. True enough, but that is why the increased remote area usually. The engineer specified that the any method of calcs allowed in NFPA 13 would be acceptable; therefore the largest room rule could be applied as this is a dorm of sorts with many small rooms, so I am reluctant to argue that point yet. Greg
Living Water Fire Protection, LLC 1160 McKenzie Road Cantonment, FL 32533 850-937-1850 Fax: 850-937-1852 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Vince Sabolik Sent: Friday, July 27, 2007 5:24 PM To: [email protected] Subject: Re: Dry System with Pendents 7.2.2 Sprinklers. The following types of sprinklers and arrangements shall be permitted for dry pipe systems: (1) Upright sprinklers (2)* Listed dry sprinklers (3) Pendent sprinklers and sidewall sprinklers installed on return bends, where the sprinklers, return bend, and branch line piping are in an area maintained at or above 40°F (4°C) (4) Horizontal sidewall sprinklers, installed so that water is not trapped Now, what could be so confusing to THIS AHJ? At 05:58 PM 7/27/2007, you wrote: >We have an AHJ telling us that we can not use a dry system to feed an >unheated attic and the heated space below the ceiling. He is insisting that >we use a wet system for the lower area with insulation on top of the piping. >We have done this many times in the past but on this project it is very >difficult to accomplish this due to the construction. > >I am having a hard time refuting him with concrete proof that there is >nothing wrong with using the dry system with dry pendents. > >Thanks for any input from the forum. >Greg >Living Water Fire Protection, LLC >1160 McKenzie Road >Cantonment, FL 32533 >850-937-1850 >Fax: 850-937-1852 > > > >_______________________________________________ >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)
