NFPA 13 (2013) section 8.6.4.1.3.1 states "Unless the requirements of 8.6.4.1.3.2 or 8.6.4.1.3.3 are met, sprinklers under or near the peak of a roof or ceiling shall have deflectors located not more than 36 in. (914 mm) vertically down from the peak as indicated in Figure 8.6.4.1.3.1(a) and Figure 8.6.4.1.3.1(b)."
Per section 8.6.4.1.3.1, the maximum vertical distance below the peak is 36 inches unless the requirements of sections 8.6.4.1.3.2 or 8.6.4.1.3.3 are met. 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 On Wed, Apr 2, 2014 at 10:28 AM, Ed Kramer <[email protected]> wrote: > NFPA 13 (2013) section 8.6.4.1.3.3 says "Under a steeply pitched surface, > the distance from the peak to the deflectors shall be permitted to be > increased to maintain a horizontal clearance of not less than 24" form > other > structural members as indicated in Figure 8.6.4.1.3.3." > > > > So, does this mean lowering the sprinkler in order to get the 24" clearance > is optional? Am I allowed to install the sprinkler very high in the peak > (let's say 12" down from peak with only 8" horizontal distance from > sprinkler to roof)? > > > > Ed Kramer > > Lawrence, KS > > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > -- Juan Munguia Thorpe Design Inc. P 925.634.5758 C 209-380-0599 F 925.634.5975 E [email protected] W www.thorpedesign.com _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
