I understand all of that, however the fact is that ASME A17.1 requires "non-combustible" shaft and passenger car, unless I am mistaken. So if the shaft and car are IAW ASME then it should be considered non-combustible, correct?
Thanks, Eric Tysinger CET NICET III - 108988 Designer Wayne Automatic Fire Sprinklers, Inc. 4370 Motorsport Drive Concord, NC 28027 p: (704)782-3032 x1751 f: (704)795-6838 C: (239)633-9703 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Friday, October 08, 2010 10:16 AM To: [email protected] Subject: RE: Elevator Shafts Just because there is sheetrock on the wood framing doesn't mean the shaft is considered non-combustible and automatically meets the required resistance rating as required by the code. UL and ASTM have details which give very specific installation requirements for walls, floors, etc. Typically for wood framing it takes 2-layers of Type X sheetrock over 2x6 studs, fire blocking and mineral wool insulation in the void spaces plus some other misc. application requirements. So if the GC just built 2x4 shaft walls and slapped on a layer of sheetrock, he has a shaft, nothing more. To get an idea you can look at these sites: http://www.gp.com/build/pageviewer.aspx?elementid=3874&lastpid=1064&pid=6333&repository=bp http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/fireressrch.html Craig L. Prahl, CET Fire Protection Specialist Mechanical Department CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 [email protected] http://www.ch2m.com > Gentlemen, > I have a project (NFPA 13R) Type 5B/R-2 located in South Carolina. The > local fire marshal is contesting that because the elevator shaft is > framed with wood, as is the rest of the building (type 5b) that it is > considered a combustible shaft. The shaft is also 2-hour rated. The > shaft and car are manufactured and installed IAW ASME A17.1. When 13R > (2010 ed) references combustible elevator shafts, aren't they > referring to the exposed surfaces? As well, ASME A17.1 requires the > car and shaft to be non-combustible. I know that 13R added the > "combustible" wording in the 2007 edition as some states have not > adopted the ASME requirements. Am I wrong, by thinking this AHJ is > incorrect, is it considered combustible and are sprinklers really required? > > Thanks, > Eric Tysinger CET > NICET III - 108988 > Designer > Wayne Automatic Fire Sprinklers, Inc. > 4370 Motorsport Drive > Concord, NC 28027 > p: (704)782-3032 x1751 > f: (704)795-6838 > C: (239)633-9703 _______________________________________________ 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) _______________________________________________ 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)
