The appendix of 13 (A.8.16.4.2.1) does give some commentary for certain conditions where "If corrosive conditions are not of great intensity and humidity is not abnormally high, good results can be obtained by a protective coating of red lead and varnish or by a good grade of commercial acid-resisting paint. The paint manufacturer's instructions should be followed in the preparation of the surface and in the method of application."
But the point being that pipe exposed to the weather is to have some sort of protection. If you take this literally it appears to leave no option for non-protected black steel pipe in exposed conditions. Craig L. Prahl, CET Fire Protection Specialist Mechanical Department CH2MHILL Lockwood Greene 1500 International Drive PO Box 491, Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 [email protected] http://www.ch2m.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of John Denhardt Sent: Wednesday, March 17, 2010 2:44 PM To: [email protected] Subject: RE: Exterior dry system piping under canopy I agree with Ron. Just because it is outside under a canopy would not mean it has to be galvanized. I think a lot has to be where the building is located. I would be perfectly happy with a coat of paint on the piping in an area where occasionally the pipe might be exposed to the elements. John John August Denhardt, P.E. Strickland Fire Protection Incorporated 5113 Berwyn Road College Park, Maryland 20740 Office Telephone Number: 301-474-1136 Mobile Telephone Number: 301-343-1457 FIRE SPRINKLERS SAVE LIVES -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ron Greenman Sent: Wednesday, March 17, 2010 2:49 PM To: [email protected] Subject: Re: Exterior dry system piping under canopy I think it's ambiguous because it is ambiguous. I wouldn't have a bit of trouble worrying about black piper exposed to weather in Arizona or Saudi Arabia. Might get a surface rusting but that's protective. I might, on the other hand, be horrified of the thought of using anything but that stuff that has the zinc impregnated into the outer layers of the steel rather than as just a coating (don't want to name it and be accused of advertising a product) on a North Sea offshore oil platform, even for inside stuff. All is situational. On Wed, Mar 17, 2010 at 11:38 AM, Bobby Gillett <[email protected]> wrote: > I was in FL at one time a few years ago, could be the same one. > > Not the same, but still good. > > Bobby Gillett > Sr. Project Manager > Key Fire Protection, Inc. > (731) 424-0130 office (731) 424-9285 fax > (731) 267-4853 cell > [email protected] > > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Chris > Cahill > Sent: Wednesday, March 17, 2010 1:35 PM > To: [email protected] > Subject: RE: Exterior dry system piping under canopy > > Oooops, nah, it's all different if it's not here. I have to drive > through TN next month to get to FL. It's not all the same "down there", lol. > > Must be the other Bobby, yeah that's my story. > > Chris > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Bobby > Gillett > Sent: Wednesday, March 17, 2010 1:29 PM > To: [email protected] > Subject: RE: Exterior dry system piping under canopy > > No no, Bobby is in TN. and this is a fully covered canopy. - beam & > purlin construction. > > Bobby Gillett > Sr. Project Manager > Key Fire Protection, Inc. > (731) 424-0130 office (731) 424-9285 fax > (731) 267-4853 cell > [email protected] > > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Chris > Cahill > Sent: Wednesday, March 17, 2010 1:26 PM > To: [email protected] > Subject: RE: Exterior dry system piping under canopy > > I don't see it as that clear. '02-8.15.3.2.3 Where corrosive > conditions exist OR the piping is exposed to weather...... > > So I guess it depends on the definition of "exposed to weather". One > could say outside period. Bobby is in FL, I imagine ambient air is a > little moister and perhaps saltier even inland than here in the flooded > tundra. > > Or I guess it could mean gets rained on so with a cover maybe not > exposed to weather. > > I know open parking ramps don't fair well here with black nor do wash > bays inside. Generic store front canopy a little grayer. > > Chris Cahill, P.E. > Fire Protection Engineer > Sentry Fire Protection, Inc. > > 763-658-4483 > 763-658-4921 fax > > Email: [email protected] > > Mail: P.O. Box 69 > Waverly, MN 55390 > > Location: 4439 Hwy 12 SW > Waverly, MN 55390 > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of John > Denhardt > Sent: Wednesday, March 17, 2010 12:39 PM > To: [email protected] > Subject: RE: Exterior dry system piping under canopy > > It is not required to be galvanized per NFPA 13. > > John > > > John August Denhardt, P.E. > Strickland Fire Protection Incorporated > 5113 Berwyn Road > College Park, Maryland 20740 > Office Telephone Number: 301-474-1136 Mobile Telephone Number: > 301-343-1457 FIRE SPRINKLERS SAVE LIVES > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Bobby > Gillett > Sent: Wednesday, March 17, 2010 1:44 PM > To: [email protected] > Subject: Exterior dry system piping under canopy > > I have a dry system (non-FM in TN) under an exterior canopy. Is there > somewhere it states the pipe and fittings are to be corrosion > resistant (ex. > Galv.)? I thought somewhere it stated for preact it had to be > regardless, but I can't find that either. Maybe I'm pulling an old > spec from a project out of my brain as the last two I've done have > required galv. piping per the spec book. > > > > > > Bobby Gillett > > Sr. Project Manager > > Key Fire Protection, Inc. > > (731) 424-0130 office (731) 424-9285 fax > > (731) 267-4853 cell > > <mailto:[email protected]> > [email protected] > > > > > > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email > to:[email protected] > (Put the word unsubscribe in the subject field) > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email > to:[email protected] > (Put the word unsubscribe in the subject field) > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email > to:[email protected] > (Put the word unsubscribe in the subject field) > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.791 / Virus Database: 271.1.1/2752 - Release Date: > 03/17/10 02:33:00 > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email > to:[email protected] > (Put the word unsubscribe in the subject field) > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email > to:[email protected] > (Put the word unsubscribe in the subject field) > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.791 / Virus Database: 271.1.1/2752 - Release Date: > 03/17/10 02:33:00 > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email > to:[email protected] > (Put the word unsubscribe in the subject field) > -- Ron Greenman Instructor Fire Protection Engineering Bates Technical College Tacoma, WA Member: SFPE, ASCET, NFPA, AFSA, NFSA AFAA, NIBS, WSAFM, WFC _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
