NFPA 13 is very clear about protecting below obstructions over 4' wide. No stress there. But what if the bottom of a 50" wide duct is only 12" above the floor? Makes no sense to put a sprinkler below it. If the bottom were 8' AFF, then the sprinkler's a no-brainer.
Since 13 is mute on this issue, anybody want to share their rule-of-thumb for determining when to install a sprinkler based on floor clearance (or lack of)? Ed Kramer Littleton, CO _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
