I find it amusing that the guidance for the wall mounted soffit for which the top of it is LOCATED MORE THAN 18 INCHES BELOW THE DEFLECTOR is in the section that addresses obstruction close to the ceiling (aka the top is above the deflector). This should be in 8.6.5.3. Maybe its meant to balance 8.6.5.3.2 criteria for obstructions greater 48 inches that are less than 18 inches below the deflector.
Yea my frustration is getting to me since I’ve tried multiple times to get the Installation TC to pay attention to where things are placed - Location has Meaning. WE should see some improvement in the 2019 regarding this somewhat important philosophy. Roland Roland Huggins, PE - Senior VP Engineering American Fire Sprinkler Assn. Dallas, TX http://www.firesprinkler.org <http://www.firesprinkler.org/> Fire Sprinklers Saves Lives > On Jan 12, 2017, at 8:25 AM, Mike Stossel <[email protected]> wrote: > > Can you use the soffit against the wall rule from NFPA 13, 2013 > 8.6.5.1.2* Sprinklers shall be arranged to comply with one of the following > arrangements: > (1) Subsection 8.5.5.2, Table 8.6.5.1.2, and Figure 8.6.5.1.2(a) shall be > followed. > (2) Sprinklers shall be permitted to be spaced on opposite sides of > obstructions not exceeding 4 ft (1.2 m) in width, provided the distance from > the centerline of the obstruction to the sprinklers does not exceed one-half > the allowable distance permitted between sprinklers. > (3) Obstructions located against the wall and that are not over 30 in. (762 > mm) in width shall be permitted to be protected in accordance with Figure > 8.6.5.1.2(b). > (4) Obstructions located against the wall and that are not over 24 in. (610 > mm) in width shall be permitted to be protected in accordance with Figure > 8.6.5.1.2(c). The maximum distance between the sprinkler and the wall > shall be measured from the sprinkler to the wall behind the obstruction and > not to the face of the obstruction. > A.8.6.5.1.2 The intent of 8.6.5.1.2(3) is to apply to soffits that are > located within the 18 in. (457 mm) plane from the sprinkler deflector. A > soffit or other obstruction (i.e., shelf) located against a wall that is > located entirely below the 18 in. (457 mm) plane from the sprinkler deflector > should be in accordance with 8.6.5.3.3. (See Figure A.8.6.5.1.2.) > > > > Mike Stossel SET > > 36 Barren Road > East Stroudsburg, PA 18302 > Office: 973-670-2627 > [email protected] <mailto:[email protected]> > > From: Sprinklerforum [mailto:[email protected] > <mailto:[email protected]>] On Behalf Of > rongreenman . > Sent: Thursday, January 12, 2017 11:00 AM > To: [email protected] > <mailto:[email protected]> > Subject: Re: Funky Wavy Soffit > > No. I got up on the wrong side of the bed and that's a face plant into a a > rough cedar wall. still pulling out splinters, Brian. But do you get my > point? You may be looking at the reference numbers in the 2007 edition where > you are and I'm looking at 2013 and the numbers don't match. I always tell my > people to make it easy for customers to give you their money and that advice > applies here. When you're asking for free help and looking for code > references to argue a point make it easy for the other Forumites to help you. > I now when I pull out the book to help and 8.6.5.3 is not the 48" rule > because you're using a different edition than I am, then I'm done looking, > but tell me the edition you are using and I can pull out almost anything back > to '68 (I'm missing a couple). I think Leyton can tell you I was able to get > him a reference to a building built in maybe '74 that hadn't changed use and > saved his client a pile of dough that someone who the Wizard had just > bestowed a golden badge upon wanted spent. > > On Thu, Jan 12, 2017 at 7:44 AM, Brian Harris <[email protected] > <mailto:[email protected]>> wrote: > Ron- > You want my address? > > Brian Harris, CET > BVS Systems Inc. > bvssytemsinc.com <http://bvssystemsinc.com/> > > From: Sprinklerforum [mailto:[email protected] > <mailto:[email protected]>] On Behalf Of > rongreenman . > Sent: Thursday, January 12, 2017 10:43 AM > To: [email protected] > <mailto:[email protected]> > Subject: Re: Funky Wavy Soffit > > I think that whenever someone posts a reference number and doesn't include > the text or at least the edition he should be severely beaten. > > On Thu, Jan 12, 2017 at 6:24 AM, Brian Harris <[email protected] > <mailto:[email protected]>> wrote: > We have a grocery store that has a wavy kinda soffit (see dropbox file link > below) around the perimeter of most of the store. The top of this soffit is > approximately 5’0” below the overhead sprinklers & is less than 48” at the > widest points. With that being said are additional heads needed in this lower > soffit? In my opinion 8.6.5.2 would not apply since the pattern development > is not affected so the next stop would be 8.6.5.3. The only thing that stands > out to me there would be the 48” width we I do not have. So I say no > additional heads needed below, what say you? > > https://www.dropbox.com/s/3klcgh37fhowmp8/Wavy%20Soffit.pdf?dl=0 > <https://www.dropbox.com/s/3klcgh37fhowmp8/Wavy%20Soffit.pdf?dl=0> > > Brian Harris, CET > BVS Systems Inc. > Design Manager > bvssystemsinc.com <http://bvssystemsinc.com/> > Phone: 704.896.9989 <tel:(704)%20896-9989> > Fax: 704.896.1935 <tel:(704)%20896-1935> > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > <mailto:[email protected]> > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > <http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org> > > > > -- > Ron Greenman > > [email protected] <mailto:[email protected]> > > 253.576.9700 <tel:(253)%20576-9700> > > The Universe is monstrously indifferent to the presence of man. -Werner > Herzog, screenwriter, film director, author, actor and opera director (1942-) > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > <mailto:[email protected]> > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > <http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org> > > > > -- > Ron Greenman > > [email protected] <mailto:[email protected]> > > 253.576.9700 > > The Universe is monstrously indifferent to the presence of man. -Werner > Herzog, screenwriter, film director, author, actor and opera director (1942-) > _______________________________________________ > Sprinklerforum mailing list > [email protected] > <mailto:[email protected]> > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > <http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org>
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