Bathroom Exhaust Fan Placement Tips

Bathroom Exhaust Fan Placement Tips

If you know you need an exhaust fan in your bathroom, follow these considerations for where to install one.

If any place needs decent ventilation, it’s the bathroom. It is ever-wet, with the toilet, the faucet, and the shower going day by day. When high humidity collects, certain risks go high, such as mold growth, damp drywall, and peeling paint. On an empty stomach, high humidity can also cause some people to get nauseous or faint! An exhaust fan plays a considerable role in keeping this particular room well-ventilated. The biggest question that one may ask about it, though, is about bathroom exhaust fan placement.

Where the Moisture Is

The place where the most moisture collects is where you want to place your bathroom exhaust fan. The wettest place of the bathroom is the shower or bath, so you will want to install the fan within that space. If that is not the best place for you to install the exhaust fan, somewhere close by in the room will do.

The Shortest Route

Deciding the bathroom exhaust fan placement will also depend on the shortest route to the outdoors. If the pipe to the outside from your bathroom is longer than it needs to be, condensation can collect in the tube, possibly leading to mold growth or damage from frozen water. Choose the shortest path to get the steam outside. One way to help you determine your vent’s path is to enter the attic and check for obstructions. Nothing would be worse than cutting a hole in your ceiling only to damage an electric wire or a ceiling joist.

The Right Size

While your bathroom exhaust fan placement is crucial to proper ventilation, so is the size of the device. Exhaust fans measure in CFMs, or cubic feet per minute. One can choose the right size fan by measuring the square footage of the bathroom in question. If the square footage is 20 square feet, you need to get a 20 CFM fan.

Other Factors

Another way that an exhaust fan can be more efficient is its relation to the door. A bathroom door should have a gap at the bottom so that fresh, dry air can flow into the room. It is best if the fan is on the opposite side of the door. This way, fresh air can come in on one side while humid air can go out the other. 


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This entry was posted on Thursday, December 5th, 2019 at 5:24 pm. Both comments and pings are currently closed.

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