You always take adjacent sprinklers, even in an area design. Find the most demanding adjacent 4. You would not make a 3000 square foor area full of holes.
Fire Protection Engineers give Firefighters sloppy seconds.
The swimming pool use would be considered an Assembly building, probably A-3, and if the IBC/local building code does not require sprinklers in that building, at the particular square footage, and you are not trading anything else off for sprinkler protection, then you do not need them...
I think the confusion is in the terminology. "Exterior Roofs, Canopies, Porte-Cocheres, Balconies, Decks, or similar projections" - That implies at worst, minimum occupancy above (deck or balcony), but not an entire section of the floor above. I treat this similar to the mezzanine rules where...
The hydraulics should always show the most demanding condition.
Let's take a 0.10 density per sprinkler:
32.4 gpm k8 = 16.4025psi
25.6 gpm k5.6 = 20.898 psi
If the last sprinkler on a line generates the most pressure, and every other sprinkler has a larger k factor, you will end up wasting a...
The last sprinkler on the line will drive the pressure of the lower square footage sprinklers behind it. If the situation was reversed, then for simplicity I would calculate all at the higher square footage.
Fire Protection Engineers give Firefighters sloppy seconds.
The overhang and canopy language refer to a typical condition where there is no occupied space above the canopy. I would believe that any AHJ and sound engineering practice would dictate that you sprinkle the underside to protect the integriy of the supporting structure above.
Fire Protection...
