Exhaust Rates for Single Occupant Restroom With Multiple Fixtures

[NoiseCriteria]

Client wants to convert existing, separate male/female restrooms into two unisex single-occupant restrooms. Current layout includes two toilets in female RR and a toilet with a urinal in the male. The renovated restrooms will both have a toilet and a urinal.

Am I still required to use the "per water closet or urinal" rates in the Florida Building Code for exhaust even though it is now a single occupant restroom? Or can I use the exhaust rate for a single toilet since it will only have one occupant at a time?

 

[HVAC-Novice]

To be sure, you should ask your JHA. You also should read what your local code exactly says about that.

I personally would assume you only use the higher of the two fixtures in a single-occupancy restroom. But I'm not in FL, and still would ask JHA just to be sure.

 

[NoiseCriteria]

JHA?

And Florida Building Code just says "70 cfm per water closet or urinal" regardless of occupancy, at least as far as I can tell.

 

[HVAC-Novice]

sorry, meant AHJ, authority having jurisdiction. Your local code enforcement agency.

If FL code reads the way you say, you have your answer unless AHJ allows differently. but don't just take one sentence out of context, the entire code matters and somewhere else there could be a written exception.