Not with a 9'-0" Steve
John Drucker <[email protected]> wrote: Ps. Have seen many a platform morph into performing arts long after the engineers are gone and the pta takes their place John Drucker - Mobile Email ----- Original Message ----- From: John Drucker To: '[email protected]' <[email protected]> Sent: Wed Jul 25 18:54:35 2012 Subject: Re: Stage/platform Get rid of the curtain... LH. Done John Drucker - Mobile Email ----- Original Message ----- From: [email protected] <[email protected]> To: [email protected] <[email protected]> Sent: Wed Jul 25 18:39:08 2012 Subject: RE: Stage/platform Agree with you up to the end. It's a Multi-Purpose building with a platform that has a low ceiling and a horizontally closing curtain. Not a performing arts center or other "legitimate" stage type of facility. So the building is used for PTA meetings, student assemblies and cafeteria seating; it's a smaller A-group with a raised platform that faces the main seating area, and I see the whole thing as light hazard. The plans reviewer brought this up at the very end of a backcheck. The entire design is approved, and this wasn't a correction on the first plan check. She brought it up right before we were to get signed off and it's a big deal because the riser is at the other end of the building. So this will change our piping plan and RCP over the platform, main size, seismic bracing calc's, detail sheet, etc., etc. That's why it's a BFD ... SML -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of John Drucker Sent: Wednesday, July 25, 2012 3:32 PM To: [email protected] Subject: RE: Stage/platform For example.......... An A-1 Theatre, IIA Construction, 1 story, 10,000 sf in area, exit discharge at grade, occupant load of 299. Does the building need sprinklers ? 903.2.1.1 Group A-1. An automatic sprinkler system shall be provided for Group A-1 occupancies where ONE of the following conditions exists: 1. The fire area exceeds 12,000 square feet (1115 m2). 2. The fire area has an occupant load of 300 or more. 3. The fire area is located on a floor other than the level of exit discharge. 4. The fire area contains a multitheater complex. Lets add a Stage........ 401.1 Detailed use and occupancy requirements. In ADDITION to the occupancy and construction requirements in this code, the provisions of this chapter apply to the special uses and occupancies described herein. [F] 410.6 Automatic sprinkler system. Stages shall be equipped with an automatic fire-extinguishing system in accordance with Chapter 9. Sprinklers shall be installed under the roof and gridiron and under all catwalks and galleries over the stage. Sprinklers shall be installed in dressing rooms, performer lounges, shops and storerooms accessory to such stages. Exceptions: 1. Sprinklers are not required under stage areas less than 4 feet (1219 mm) in clear height that are utilized exclusively for storage of tables and chairs, provided the concealed space is separated from the adjacent spaces by not less than 5/8-inch (15.9 mm) Type X gypsum board. 2. Sprinklers are not required for stages 1,000 square feet (93 m2) or less in area and 50 feet (15 240 mm) or less in height where curtains, scenery or other combustible hangings are not retractable vertically. Combustible hangings shall be limited to a single main curtain, borders, legs and a single backdrop. 3. Sprinklers are not required within portable orchestra enclosures on stages. So 410.6 could require the suppression of a stage in an otherwise unsprinklered building. Of course I really oversimplified this, obviously means of egress figures into the equation. If your building requires sprinklers based in 903, 410.6 is a mute point since sprinklers are required throughout and the density based on the hazard from 13, OH-2. John John Drucker, CET Fire Protection Subcode Official Fire/Building/Electrical Inspector Fire Marshals Office Borough of Red Bank, NJ Not the official position of any agency, association, committee or otherwise. Obtain required applications, permits, inspections and approvals from Authority(s) Having Jurisdiction. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Steve Leyton Sent: Wednesday, July 25, 2012 6:16 PM To: [email protected] Subject: RE: Stage/platform But 410.6 excepts sprinklers where stages are less than 1,000 s.f. in area and 50' high AND where there is only a "main curtain". This is the fulcrum of the widget: they're saying that the curtain that closes in front of the stage is an "overhead hanging curtain". This thing has a t-bar ceiling at 9'-0 or 10'-0. We're putting in sprinklers either way as it's a fully sprinklered building but absent a volume of "flag and bag" space above the stage, OH-2 is a BFD and in my opinion not required on this particular application. Steve -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of John Drucker Sent: Wednesday, July 25, 2012 3:10 PM To: [email protected] Subject: RE: Stage/platform 2006 IBC Commentary...................... Platform "Platforms are raised areas that are used for public performances and presentations that EXCEPT FOR LIGHTING DO NOT INCORPORATE ANY OVERHEAD HANGING CURTAINS, DROPS, SCENERY OR STAGE EFFECTS." OVERHEAD HANGING CURTAINS..... It's a stage. Sprinklers.... 410.6 Standpipes (You're favorite) .... 410.7 Hope that helps, John Drucker, CET Fire Protection Subcode Official Fire/Building/Electrical Inspector Fire Marshals Office Borough of Red Bank, NJ Not the official position of any agency, association, committee or otherwise. Obtain required applications, permits, inspections and approvals from Authority(s) Having Jurisdiction. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Steve Leyton Sent: Wednesday, July 25, 2012 1:59 PM To: [email protected] Subject: Stage/platform Friends, Romans, Forumite and Drucker: I have a plans reviewer with whom we are dancing about on the subject of defining a "platform" vs. a "stage". Probably the largest part of the conversation has to do with "overhead hanging curtains". The definition of a stage is basically a space within a building used for entertainment or presentations that includes "overhead hanging curtains, drops, scenery or stage effects other than lighting and sound." My take is that this space in an elementary school MP buildings is a platform because it only has lighting and sound overhead. Their take is that it's a stage because it has a curtain that can be drawn across its front. Anyone have a more specific definition or code citation for what constitutes an overhead hanging curtain? Steve Leyton _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum CONFIDENTIAL AND PROPRIETARY: This email message is intended only for the use of the individual or entity to which it is addressed and may contain information that is privileged and confidential, nor is it, unless specifically stated, intended to be relied upon by any person or persons other than the individual or entity named above and no warranties or representations are made or intended to persons or entities not named above. 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