If you plan to install a ceiling fan in a Gazebo, Pergola or Lanai, you must install a wet rated fan. The fan must be properly wired to a weatherproof junction box where the canopy of the fan is protected from water. The most common mistake people make in this application is to leave the canopy exposed to rain. This page will show you several examples right and wrong way to do it.
Here are the 3 fans we recommend the most for a Gazebos and Pergolas that are directly exposed to the elements. These fans are made from 316 marine grade stainless steel to best resist corrosion from acidic rain, air pollution (sulfur dioxide) or salt air near the ocean. Each model is available in several finishes.
Below are several examples of how you can install a ceiling fan in an uncovered location such as a Pergola, Gazebo or Lanai. To install the fan properly, the canopy needs to be covered. The rest of the fan can be exposed directly to rain. In most cases, a box has been built with a junction box inside. This allows the fan canopy to mount flush to the bottom of the box. You can also mount the j-box to the bottom of a wide board and attach the canopy to the junction box, but there will be a gap between the j-box and fan canopy, but you cannot use this method for flush mount fans because the bracket needs to mount to a flat surface.
Uncovered outdoor locations like these require Wet Rated Outdoor Ceiling Fans