What Bob said and Bob, that link was great. Thanks. On Fri, Dec 4, 2009 at 2:03 PM, Bob Knight <[email protected]> wrote: > Jim, > > It's been awhile since I last looked at this issue, but if I remember > correctly this is only an issue when the ceiling assembly is not braced to > resist movement. Ceilings that incorporate lateral force bracing are exempt > from the oversize escutcheon requirement. So, if the ceiling assembly is > not properly braced, the oversized escutcheon is required. > > > > Here is a link to a good tech guide that might help, > http://www.nwcb.org/images/resource_files/401%20Suspension%20Systems%20for%2 > 0Acoustical%20Lay-in%20Ceilings(2009).pdf > > > > > > Bob Knight > > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Jim Johnston > Sent: Friday, December 04, 2009 2:26 PM > To: [email protected] > Subject: Clearance for Drops > > > > Good Friday Afternoon All!! > > > > > > > > Does anybody no if there is a clearance (annular) requirement for drops thru > > hard lids or suspended ceilings? I had a Fire Marshal call me this morning > > regarding this issue and oversize escutcheons to fill the void, I am not > > aware of this requirement. I have looked in the IBC Chapter 16, is it in > > ASCE7? What do the Californians know about this? > > > > > > > > Thanks in advance, and all have a great weekend. > > > > > > > > Jim Johnston, P.E. > > > > Fire Protection Engineer > > > > Inland Fire Protection, Inc > > > > 1100 Ahtanum Road > > > > Yakima, WA 98903 > > > > Phone 509-248-4471 > > > > Fax 509-248-1180 > > > > [email protected] > > > > > > > > _______________________________________________ > > 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) >
-- Ron Greenman Instructor Fire Protection Engineering Bates Technical College Tacoma, WA Member: SFPE, ASCET, NFPA, AFSA, NFSA AFAA, WSAFM _______________________________________________ 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)
