If they are actually separated by "fire walls", and not just fire-rated walls, then they are separate buildings per the IBC. But, yes, you can use one riser to feed both buildings provided that you protect the connecting pipe from freezing temperatures and you do not exceed the maximum allowable area for the system.
Paul Pinigis, P.E. Life Safety Department Head -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Karen Purvis Sent: Monday, March 23, 2009 10:05 AM To: sprinklerforum@firesprinkler.org Subject: RE: Possible IBC question The buildings are actually just additions to an existing building and they are separated by two adjacent fire walls. Karen Purvis Senior Designer Facility Systems Consultants 713 South Central Street, Suite 101 Knoxville, TN 37902 ph.865-246-0164 fax 865-246-1084 -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Paul Pinigis Sent: Monday, March 23, 2009 10:03 AM To: sprinklerforum@firesprinkler.org Subject: RE: Possible IBC question It depends upon the distance between buildings and the percent of open wall space under the roof. Paul Pinigis, P.E. Life Safety Department Head -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Karen Purvis Sent: Monday, March 23, 2009 9:07 AM To: sprinklerforum@firesprinkler.org Subject: Possible IBC question I am looking for some code help. According to NFPA 13 8.2.4 you can have separate buildings that share a common roof, walls or passageway be protected by one riser. Does anyone know if the IBC contradicts this? I have an architect telling me I have to have a separate riser for each section of building. They claim that I can have the risers in the same room but that each building section must have a separate riser. Karen Purvis Senior Designer Facility Systems Consultants 713 South Central Street, Suite 101 Knoxville, TN 37902 ph.865-246-0164 fax 865-246-1084 _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: techsupp...@firesprinkler.org To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: techsupp...@firesprinkler.org To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: techsupp...@firesprinkler.org To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: techsupp...@firesprinkler.org To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org (Put the word unsubscribe in the subject field)
