Manual of Style, 2004 edition: 2.2.1.2 - The phrase "shall be permitted" (to be) shall be used to state a permitted use or an alternative to a specified requirement within codes and standards.
2.2.1.3 - The phrase "should be permitted" (to be) shall be used to state a recommended permitted use or a recommended alternative to a recommendation within recommended practices. The use of these phrases coincided with the removal of "exceptions". On occasion I have found it useful to go back to the last edition that contained exceptions when trying to interpret the standard. Jack Fairchild -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ed Kramer Sent: Wednesday, April 02, 2014 3:00 PM To: [email protected] Subject: RE: Steeply pitched roof I'm with you, but "yes you will be permitted" is not the same as "yes you will". But enough. I'm confident I understand the intent, regardless of the wording. Ed Kramer Lawrence, KS -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bob Sent: Wednesday, April 02, 2014 1:38 PM To: [email protected] Subject: RE: Steeply pitched roof Though, "shall" means "yes you will" and "should" means "if it helps you". You can find these definitions in the 12th printing of bobisims if you need to reference them. Thank You, Bob Knight, CET III 208-318-3057 www.Firebyknight.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ed Kramer Sent: Wednesday, April 02, 2014 12:23 PM To: [email protected] Subject: RE: Steeply pitched roof Juan, I believe that's the intent, but the wording ". . . shall be permitted . ." makes it sound optional to me, or at the very least, confusing. Ed Kramer -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Juan Munguia Sent: Wednesday, April 02, 2014 1:17 PM To: [email protected] Subject: Re: Steeply pitched roof 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-firesprinkl > er.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 _______________________________________________ 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 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
