What is the code requirement for a light fixture (luminaire) over a shower or bathtub?
Sunday, June 17, 2018
This is what it says in both the International Residential Code (IRC) and Florida Building Code Residential Edition (FBC) at E4003.11: “Luminaires within the outside dimension of the bathtub or shower to a height of 8 feet (2438 mm) vertically from the top of the bathtub rim or shower threshold shall be marked for damp locations and where subject to shower spray, shall be marked for wet locations.”
There are several things to consider when evaluating whether a ceiling luminaire meets this standard:
- Luminaires rated for damp or wet locations have a cover lens to protect the bulb. The photo above is an example of one that is wrong.
- Remember that the 8-foot dimension is taken from the rim of the tub or shower threshold, not the floor.
- A luminaire in a bathroom with a ceiling height of more than 8 feet may exceed the distance to the fixture that requires the damp or wet rating, and should be measured if in doubt.
And here’s an example of a luminaire rated for damp or wet environment.
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