John, I don't think this space meets any of the criteria to omit sprinklers per NFPA 13-2007 8.15.1. Therefore sprinklers would be required.
Do I think the definitions of concealed leave some room for improvement? Yes. Do I have any good ideas on how to make it clearer? No. It appears this maintenance space may also require special work practices if you have the access issues you describe. Bill Brooks Pittsburgh, PA -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Thursday, April 19, 2007 10:10 AM To: [email protected] Subject: Concealed/Utility Space There's currently nothing in this space (no pipe, duct, etc.). It's viewable from the main street. The projector screens are on the inside of the building and not in this space. I don't know how they would have access that's just what I was told yesterday, haven't been able to figure it out yet. The furthest point is probably 72 ft to the door to the inside followed by probably another 70-100 ft to the stair. John Kaminski Burt Hill 724-431-1388 http://www.burthill.com Are there any pipes, wires, ductwork of any kind that contain combustible insulation running in these areas? Where are the projector screens in relation to this space and does this space have any opening into the occupied space. Is there any of the projector apparatus within this space? Also what would the farthest point within the space to the nearest exit be? Craig L. Prahl, CET Fire Protection Group Mechanical Department CH2MHILL Lockwood Greene 1500 International Drive PO Box 491, Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 craig.prahl at ch2m.com http://www.lg.com -----Original Message----- From: sprinklerforum-bounces at firesprinkler.org [mailto:sprinklerforum-bounces at firesprinkler.org] On Behalf Of John.Kaminski at burthill.com Sent: Thursday, April 19, 2007 9:12 AM To: sprinklerforum at firesprinkler.org Subject: Concealed/Utility Space The Architects on my project have created a strange space that I am not 100% sure what to do with. The space is just over two feet wide. It is located on the exterior wall of the building. The building rooms have a set back but they created a space out of non-combustible glass, steel ,etc to keep the appearance of a flat exterior wall. The space is two stories high with metal grating between the floors. It has a man door on each level. It's mainly windows on both sides. I've been told this space is to be used for maintenance of projector screens and washing of windows. Does this make this an occupiable space requiring sprinklers? Is this a non-combustible concealed space even though it could be occupied for maintenance? I guess it all really depends on the definitions of concealed and occupied. The space has heat release vents but nothing to protect it from the cold in winter. I'm extremely worried about sprinklers freezing in the winter and overheating in the summer. Prior to me coming on the project, the officials required sprinklers in the utility tunnel because it could be occupied. Any thoughts out there? John Kaminski Burt Hill 724-431-1388 http://www.burthill.com _______________________________________________ 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)
