Hello Craig, IF there is a ceiling with space above. This actually this would be a good application for Aspirating Smoke Detection. All you would have on the ceiling is a small round circle.
Monday, March 7, 2016, 8:26:55 AM, you wrote: > I had one where the saw tooth roof system was used, it was actually > baffles for sound but sprinklers and lines were run behind them. > The other option which may or may not work is to invoke the > Sprinkler Exemption section out of the IBC. As much as we like to > see buildings fully protected, there are cases where is impractical > or at times creates a much greater hazard than a fire would. (yes > I've had a project where a fire in the building caused less monetary > damage than sprinkler discharge on the process equipment) > So If you apply Exemptions (2) and (4) out of IBC 903.3.1.1.1 (using the 2012 > edition here) > IBC 2012 903.3.1.1.1 Exempt locations. Automatic sprinklers shall > not be required in the following rooms or areas where such rooms or > areas are protected with an approved automatic fire detection system > in accordance with Section 907.2 that will respond to visible or > invisible particles of combustion. Sprinklers shall not be omitted > from any room merely because it is damp, of fire-resistance-rated > construction or contains electrical equipment. > 2. Any room or space where sprinklers are considered undesirable > because of the nature of the contents, when approved by the fire code > official. > 4. Rooms or areas that are of noncombustible construction with wholly > noncombustible contents. > Now of course there is a trade out of smoke detection for > sprinklers which in a gun range isn't going to work either. There > is no real justification for sprinklers in the range areas, maybe at > the trap end and maybe at the staging end but down the lanes, there is none. > But if the AHJ insists on sprinklers then the owner or GC needs to > provide some means of protecting the piping and the sprinklers > otherwise SIPA or DIPA with dry pilot heads not smoke detection for > the trigger is probably going to be the only viable choice. > Craig L. Prahl > Fire Protection Group Lead/SME > CH2MHILL > Lockwood Greene > 1500 International Drive > Spartanburg, SC 29303 > Direct - 864.599.4102 > Fax - 864.599.8439 > CH2MHILL Extension 74102 > [email protected] > -----Original Message----- > From: Sprinklerforum > [mailto:[email protected]] On Behalf Of Michael > Hill > Sent: Friday, March 04, 2016 12:56 PM > To: [email protected] > Subject: RE: Shooting Range > I have put sprinklers in several shooting ranges (Government made me do it). > They were all double interlock preaction systems with piping run > above the steel roof/ceiling of the range. They all used concealed type > sprinklers. > One of the ranges utilized a saw tooth ceiling/roof to protect the heads. > Two of the systems have been hit and put into trouble (including > the saw tooth one - hit by a ricochet). Luckily no water has been > released. I know one system that has been hit several times and the > building has turned the system off. > Mike Hill > -----Original Message----- > From: Sprinklerforum > [mailto:[email protected]] > On Behalf Of Jay Stough > Sent: Friday, March 04, 2016 12:43 PM > To: Sprinkler Forum <[email protected]> > Subject: Shooting Range > I am looking for guidance on designing sprinklers in a shooting range. > Something about little glass bulbs or solder links in an area that > has high velocity projectiles, seems not right. Everything in each > alley (including the separation walls) are non-combustible. The > only thing combustible at the end of the range is shredded rubber > used to absorb the impact after the target. The rubber is treated > with flame retardant and replaced every three months. Each alley > has a series of baffles below the roof that are at a 45 degree angle > for sound. The designer of the facility has done many of these > without sprinklers in this area of the building. He has even shot > tracers to see how the flame retardant hold up and the flame goes out is less > than > 20 seconds. A fire marshal is saying to sprinkler everything. > If you have any insight, I am listening closely. > *Jay Stough* > NICET IV LAYOUT > NICET III ITM > _______________________________________________ > 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 -- Best regards, Charles mailto:[email protected] _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
