If I remember correctly the standard UL 1626 fuel package can develop 4-6 MW. I still think a standard 2 sprinkler calculation should be adequate if they haven't stuffed the room full of chairs and tables and there isn't an unusual ceiling condition or height.
Scott Futrell (763) 425-1001 Office (612) 759-5556 Cell -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Steve Leyton Sent: Friday, March 26, 2010 2:33 PM To: [email protected] Subject: RE: 13D Question It takes less than 1 MW to cause flash-over in small compartments. Many upholstered chairs, featuring Olefin or other plastic-derived coverings with polyester stuffing, contain more than 1 MW of potential energy. A sofa can be in excess of 3 MW ... I'm not disagreeing with you but I'm seeing a furnished waiting room and thinking that I'd rather take my chances with your wood shop. Steve Leyton Protection Design & Consulting San Diego, CA -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Chris Cahill Sent: Friday, March 26, 2010 12:27 PM To: [email protected] Subject: RE: 13D Question I guarantee my hobby wood shop in the basement is far more of a problem than a psychologist office. Can you say flammable liquids, dust and piles of cutoffs? No one would question 13D in my house. It's hazard and intent of 13D IMHO. If this were a stand alone Dr. office the same size I'd bet it wouldn't have sprinklers. If the Dr. is sleeping after hours and a fire starts say in his work computer surrounded by paper files on patients is that any difference than the office in my house. Again I think not. I just don't see this the same as an apartment over a bar. It's a SFH first. The bar is an assembly first. Sure if the Dr. expands to several Dr.'s and 10,000 sq.ft. of office with an attached living quarters then I'm with ya. Many, many people operate a business out of their home and for most I see them remaining 13D. Especially, the paper pushing business. Chris Cahill, P.E. Fire Protection Engineer Sentry Fire Protection, Inc. 763-658-4483 763-658-4921 fax Email: [email protected] Mail: P.O. Box 69 Waverly, MN 55390 Location: 4439 Hwy 12 SW Waverly, MN 55390 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Tom Duross Sent: Friday, March 26, 2010 1:46 PM To: [email protected] Subject: RE: 13D Question Thanks everyone! The Basement is the level of his Office, he's a psychologist and it's a walk-out, house is cut into a hill. I'm not sure of the zoning but I think he's going through the town for legally moving his practice there. I was just worried about a 900 SF waiting area and only being able to support 2-3 heads with the water supply, the rest is cut-up with three Offices, Storage and Mechanical Room. We're 2003 IRC with amendments currently. I believe he's planning on Protection One installing a monitored combination Burglar and Fire Alarm in addition to his local smokes now, we spoke this morning. I still plan to write him and suggest he hire someone to design and permit this, keeping my distance. I'm still not sure if I should change from concealed residential heads to concealed quick response. Tom Something further if you are contemplating the 2009 IBC provisions for Live / Work units in Section 419 ... Aside from the specific sprinkler design issues cited you should be aware that 419.11 #3 prohibits the non-residential use from being on any level other than the first / main floor ..... did someone mention this office was in the basement? Additionally, if the Live Work unit is applied it makes the entire building a Group R-2 which triggers fire sprinkler protection which we already are talking about and the system is also required to be supervised to the IBC Section 907.2.9. All of this is theoretical though if the prevailing building code in the jurisdiction is not the 2009 IBC ... just my thoughts on not getting into which referenced standard applies until after passing through the adopted building code which may very well make that decision and others for us in advance. Dave Phelan _______________________________________________ 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) __________ Information from ESET NOD32 Antivirus, version of virus signature database 4946 (20100315) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __________ Information from ESET NOD32 Antivirus, version of virus signature database 4946 (20100315) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com _______________________________________________ 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)
