Dripping H2O from Bathroom Ceiling Fan
- Thread starter viking63
- Start date
Had Lance out to clean our dryer vents a while back. Will give him a call to see if he will take on this kind of work. Thanks for the suggestion. CF is the best!
Since it didn't just rain and there’s no snow, my guess is the fan tube is leaking warm moist air into the attic and its condensing.
Since you just had your roof done, its possible the roofers got lazy and didn’t connect the tube properly back to the vent, or not at all.
I would contact the company who roofed your house and have them take a look. Not sure who did it, but most companies will come inspect it for free. And in most cases, fix it for free.
Since you just had your roof done, its possible the roofers got lazy and didn’t connect the tube properly back to the vent, or not at all.
I would contact the company who roofed your house and have them take a look. Not sure who did it, but most companies will come inspect it for free. And in most cases, fix it for free.
I agree dust accumulation is probably part of the issue. As others mentioned, depending on where the insulation is in the attic the vent pipe may need insulation to prevent condensation which can then trap dust and cause it to close over time.
If the house insulation is between the rafters, essentially insulating the attic, the the vent might need insulation. If the house insulation is between the ceiling joists, leaving the attic uninsulated, the definitely needs insulation.
There's a damper (flap) in your exhaust fan. The dust accumulation may not be allowing the damper to fully close, allowing cold air to enter. When it meets the warm air, it causes condensation.
Humid air going up vent and condensing. We leave fan running for a couple of hours after shower to clean humidity from vent pipe.
The previous owner of our home installed a switch that includes buttons with built in timers. So I turn the fan on when I go into the bathroom, the fan stays on while I'm showering and doing my post-shower routine, and then just before leaving the bathroom I hit the 10 min button so the fan runs for another 10 minutes before turning itself off. This isn't the exact switch we have but it's the same idea:
GE In-Wall Digital Countdown Timer 15318 - The Home Depot
Visit the Home Depot to buy GE In-Wall Digital Countdown Timer 15318
www.homedepot.com
Did they reattach the hose for the vent when they put on the new roof?
Check the roofers job water proofing around that pipe. Often times they forget to do important details.
The exhaust duct in the attic is metal or metallic, the recent cold weather made the duct work cold. The humid air then condenses on the metallic ductwork and gravity pulls it back down? Or maybe it has always done this? When they replaced the exhaust vent maybe it wasn't hooked back up correctly or the changed it somehow?
I've got issues with the flapper in mine - with the right wind conditions, it bounces & chatters constantly. I assume the springs are weakened from overuse, but I can't access it easily to properly diagnose & fix. About to tear into my finished ceiling to rip the darn thing out, otherwise we have to run the fan nearly all winter long to keep from going mad.
Not sure aboutnyour situation but if you can get it down, they make some units that you can install without entering the attic space.
Agree with the above. Had a similar scenario happen in my daughter's bedroom with just a regular light fixture. I noticed water stains and it turned out that the electrical box in the ceiling wasn't properly air sealed. The warm air was condensing in the cold attic above and dripping back down.
Since yours is also a vent you might check to see if they insulated the exhaust duct that could also help prevent condensation.
