For the record, the allowance to which Ron speaks in Seattle is on the way out now that NFPA 13R became more explicit in the 2010 edition. And I might add, that allowance came well before my time here, I just try to clean up the messes.
Rich Richardson Seattle Fire Depatrtment -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ron Greenman Sent: Saturday, May 15, 2010 08:43 To: [email protected] Subject: Re: Residential Building Some jurisdictions (Seattle I believe is one) allow a 13R over 13 in the downtown areas where there is living over retail and isn't over four stories, blah, blah, blah. Bottom line, similar situation to yours. This decision was made (again I believe but can't say definitively since I wasn't in the bedroom at the time) because they have a very quick response time so they've anticipated being able to get muscle and hose on site quickly. I doubt Old Cape Cod has anything like one of the best in the nation, full-time staffed, big city fire departments with only a several block separation between stations. Given all that I'd say Todd is on the money. Tom P.s concern regarding outside stairs will just be covered in a 13 design and I really doubt that basement storage in a converted house is really an inherent problem that would require a higher density than the prescription calls for (getting within the 18" from the deflector is a housekeeping issue, not a design issue when the general, incidental storage is involved). As for the loft, is it storage or living? If living then it is within the heated envelope and freezing is the tenant's problem since the means of keeping the space above 40 degrees exists, you may use wet under those circumstances (and should whenever you can), and the code is explicit about the issue. Of course you know all that so again it falls to Todd and his last line. You have a mixed use building (commercial and residential), presumably in a commercial/residential zoned area (I'm seeing the typical main type street of a small town or village just outside the original commercial area that was residential but now is expanding to probably provide mostly for the tourists), and has been designated residential because that is what the jurisdiction calls this arrangement. NFPA though is clear about hazards and when you may devolve to 13D or 13R and this would not be the case unless specifically allowed jurisdictionally. Now I've done my usual educator thing and used hundreds of words to say exactly what Todd said more concisely. On Sat, May 15, 2010 at 7:19 AM, tom poisal <[email protected]> wrote: > I agree with Todd, how do they get upstairs, exterior stair? You also > might need ORD GP II in the basement depending on the storage content > and height. > > -- > Tom Poisal, CET > _______________________________________________ > 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: AFT WA 4184/AFL-CIO, SFPE, ASCET, NFPA, AFSA, NFSA AFAA, NIBS, WSAFM, WFC _______________________________________________ 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)
