I ran into this situation with a sanctuary in a historic church several years back. The geometry was such that not all of the requirements of NFPA 13 could be met. We handled this similar to what has been described here.
Todd G Williams, PE Fire Protection Design/Consulting Stonington, CT www.fpdc.com 860-535-2080 (ofc) > On Apr 3, 2014, at 5:19 AM, "Dan Arbel" <[email protected]> wrote: > > Ronald, > > This is a very old provision. > > The sprinkler spray is clearly disturbed. > > Do you know if this provision is based on any test? > > Dan > > > www.riskmanage.com > Tel: 972-4-8243337, 972-777-504-011 > Fax: 972-4-8243278, > [email protected] > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Roland > Huggins > Sent: Wednesday, April 02, 2014 11:26 PM > To: [email protected] > Subject: Re: Steeply pitched roof > > I would not focus on the phrase shall be permitted (which taken by itself > means optional). I would focus on the portion that states to maintain a > horizontal distance of 24 inches. Combine this with Figure 8.6.4.1.3.3 that > dictates the 4 ft separation is a minimum leads to the interpretation that > you must be 2 ft away on each side and you are allowed to exceed the 36" > vertical maximum to accomplish it. > > Roland > > > Roland Huggins, PE - VP Engineering > American Fire Sprinkler Assn. --- Fire Sprinklers Saves Lives > Dallas, TX > http://www.firesprinkler.org > > > > > >> On Apr 2, 2014, at 11:17 AM, Juan Munguia <[email protected]> wrote: >> >> My opinion is section 8.6.4.1.3.3 requires a minimum horizontal >> clearance of 24 inches, and therefore allows the deflector to be >> located at a vertical distance greater than 36 inches down from the peak. >> >> Juan Munguia > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
