In Seattle, at least at one time, and not likely to still be the case, separate buildings, on separate lots, that abutted each other could use a common three-hour wall and they could even communicate as long as they were a 1 1/2 hour firewall on either side. These are some very old (by Western standards) buildings with steel-clad timber, counterweighted, sliding doors activated by a link and cable arrangement but built per the code at the time. I also know of three separate buildings on three separate lots that share a fire pump, many basement systems where adjacent buildings share a sprinkler system, manual, class 3, dry standpipes in high rises, and at least two basement systems that are without a water supply and rely on the FD to pump water in. Seattle was its own kind of place.
On Fri, Feb 2, 2018 at 8:56 AM, Steve Leyton <st...@protectiondesign.com> wrote: > I respectfully disagree. The most common application of a 3-hour > separation that we see in the Southwest is the horizontal separation of the > residential portion and the S/B occupancies in podium buildings. In those > instances we ALWAYS have a single system, whether it’s configured as > separate sprinklers and standpipes or a combined system. > > > > SL > > > > *From:* Sprinklerforum [mailto:email@example.com. > org] *On Behalf Of *AKS-Gmail-IMAP > *Sent:* Friday, February 02, 2018 8:22 AM > *To:* firstname.lastname@example.org > *Subject:* Re: 3-Hour Rated Walls > > > > Sometimes a 3-hour rated wall is the boundary between two separate > buildings in the code sense. If that is the case then the pipe should not > be a sprinkler system protecting one building that is crossing over to > protect all or part of the other building. > > > > Allan Seidel > > St. Louis, MO > > > > > > On Feb 2, 2018, at 8:58 AM, Brian Harris <bhar...@bvssystemsinc.com> > wrote: > > > > Is there anything that precludes passing pipe thru a 3-hour rated wall? I > don’t see anything in 13 that says you can’t, we’d obviously fire calk the > holes. > > > > *Brian Harris, CET* > > BVS Systems Inc. > > Design Manager > > bvssystemsinc.com > > Phone: 704.896.9989 <(704)%20896-9989> > > Fax: 704.896.1935 <(704)%20896-1935> > > > > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler. > org > > > > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler. > org > > -- Ron Greenman rongreen...@gmail.com 253.576.9700 The Universe is monstrously indifferent to the presence of man. -Werner Herzog, screenwriter, film director, author, actor and opera director (1942-)
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