How To Look At A House
McGarry and Madsen's home inspection blog for buyers of
site-built, mobile/manufactured and modular homes
Does a half bathroom (no shower or tub) require an exhaust fan?
Wednesday, July 4, 2018
The Florida Building Code (R303.3) specifies that any “bathrooms, water closet compartments, or other similar rooms” require either a window or exhaust fan for ventilation, and a half bath fits into that definition. So, yes, a half bath requires an exhaust fan because it has a toilet (water closet). The window must be a minimum of three square feet, with one half openable, or the alternative is an artificial light and mechanical ventilation rated at a minimum of 50 cubic feet per minute. In other words, a light fixture and 50 cfm exhaust fan. The air must be exhausted directly to the outside—not into an attic or crawl space as in the photo below.
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To learn more about heating and air conditioning systems, see these other blog posts:
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