Why Is My Ceiling Fan Dripping After Heavy Rain?

A dripping ceiling fan usually means water is sitting on the top side of the ceiling drywall or on the fan's mounting box. Heavy rain can overwhelm a roof valley, a flashing joint, or a vent pipe boot. Wind-driven rain can also push water under shingles or siding, where it travels along rafters until it drips onto the fan.

Check the attic directly above the fan. Look for wet insulation, stained wood, or water trails on the underside of the roof deck. If you see daylight through the roof, that's an obvious path. Also inspect the fan's electrical box; water and electricity are a dangerous mix, so turn off the fan's circuit at the breaker before touching anything.

• Look for stained or sagging ceiling drywall around the fan
• Check the attic for wet insulation or damp rafters
• Inspect roof flashing, vents, and chimney boots for gaps
• See if gutters are clogged and overflowing near that spot
• Feel the fan housing for cold spots that could mean condensation

Sometimes the fan itself isn't sealed properly to the ceiling. If the mounting bracket isn't caulked or the electrical box isn't sealed, water from the attic can seep through the gap and run down the fan. This is common after heavy rain when water is flowing along the underside of the roof sheathing.

Remove the fan's cover (with power off) and inspect the mounting screws and the hole in the ceiling. Look for water stains or dampness around the opening. If you see water, it's coming from above. Resealing the box with a silicone caulk can help, but only after you've fixed the actual leak.

Once the leak source is fixed, you need to dry the affected area thoroughly. If the ceiling is wet, the drywall may sag or crumble. Use fans and dehumidifiers to dry the space. A structural drying and dehumidification service can speed this up, especially in humid weather.

If the ceiling is stained but not sagging, you can paint over it after it's dry. But if the drywall is soft, it needs to be replaced. The pros can remove the damaged section, dry the framing, and install new drywall. They also check for mold growth, which can happen within 48 hours.

For minor cases, you might handle it yourself: cut out the wet drywall, let the area dry, then patch and paint. But if you're unsure about the extent of damage, a water damage inspection is a good first step. It gives you a clear picture of what's affected.

• Turn off the fan's circuit breaker before any inspection
• Use a moisture meter to check how far water has spread
• Dry the area with fans and a dehumidifier
• Cut out and replace any soft or sagging drywall
• Seal the fan's mounting box with caulk after the leak is fixed
• Monitor the area for mold growth over the next few days