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The space is 14'-0" high , no slope , non-combustible . Its not just above the ceiling its has decking for the floor to get access to duct/piping etc . The duct and piping all drops down to the surgery wing ...

I Have this space and I am leaning towards going light hazard for my spacing . There is no mechanical equipment units .other than the typical items you would find above a hospital space . As you can tell I am still a bit hesitant to go light hazard . Has anyone treated these light or ordinary ...

cdafd , Unfortunately 8.8.5.2.1.6 nfpa 13 2010 doesn't help me either . The width of the bar joists will most likely be over 8" when the fire proofing is applied . Travis , I am trying to keep them 32" on the diagonal , I have requested that the strip lighing be lowered to be at least...

Most of them are 24" deep joists .

Has anyone seen this before . We have a project where all the joists are going to be free hand sprayed with fire proofing 2" thick . So instead of having 4" wide bar joists I now have 8" wide barjoists at the bottom . And with these heads being Extended coverage heads the 4Xs rule is really...

Does piping for Deluge systems need to pitched ? I have 5 deluge sytems protecting an glass wall atrium with open nozzles . NFPA 13 call for all dry systems to be pitched , but I would be in the thought process to apply NFPA 15 Water spray fixed sytems(2007) 6.3.3.1 "all water spray systems...

It is in fact an electric , I am going to talk to the engineer after the holidays, . thanks ! If it was a diesel could you just install a pressure relief with out the waste cone ? or do they go hand in hand

I just recieved partically completed job that has a fire pump with a waste cone and relief valve designed and spec'd out. Its been years since I have seen one being used . Just wonder what the opinions are ? Just to add - The pump is 70 psi at 750 gpm and the current flow test is...

NFPA 13 8.6.5.2.1.5 . Permits heads to be spaced on opposite sides of Obstructions so long as the obstruction is not over 4'-0" . My question is - This only applies to obstructions not more than 18" below ceiling . So if I can not meet the requirments of Tables 8.6.5.1.2 , 8.6.5.1.2(a) &...

Hey all . I have a single riser for a mall building . I am coming off my Grid main to feed my 4" FDC . My Drop is 4" diameter piping , My Grid Main is 3" . do I need to up size my Grid Main to 3" ? I have checked NFPA 13 2008 8.17.2.3 .... My Riser is 4" diameter , so I am thinking...

Thanks Travis , I did comfirm , it was the 2002 version when they changed the code .

max out at 1250 gpm .

Do I have to include the shower unit in to the room sq footage ? or just the actual floor area ? I have bathrooms in a university dorm that have a total sq ft of 56 sq ft including the the shower area . I remember someone stating that you don't have to include the shower at seminar i was...