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Question DetailsAsked on 1/7/2018

Snow is on the roof and today notice water in my ceiling light fixture

I have water in my bathroom light fixture. Took the water out but worried about getting it fix with snow and ice on roof. Wonder what should I do

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I assume from the phrasing this is a top floor bathroom - with attic/roof right above it.


If this is a combination light/fan, if coming right out of the fixture (not dripping off the top of the drywall into the fixture - would have to remove fixture or fixture cover from ceiling to check that), then if you are in the cold snap likely condensation in the ducting. In that case, usually turning the fan on will cause more dripping for some minutes, then as fan melts and evaporates out the condensation will drop off to nothing within typically 10-20 minutes. In this case, commonly drips a bit when bathroom fann has not been used, but becomes noticeably more almost the instant the fan is turned on.


If coming off the top of the drywall, can be frosting melting on the ducting or heavy frost in the attic melting as the weather wamrs up and accumulating on top of the drywall ceiling (which commonly has plastic vvapor barrier on top of it so leaks through light fixture and fan openings in the ceiling), but more likely a roof leak.


Take a look from outdoors - is there sign of ice damming on the edge of the roof around/below the fan ? If so, you could be having a backup of water uphill of the ice dam, leaking in at the vent.


Here are links to a couple of similar questions discussing fan duct frosting/condensation, and roof leaks coming through upstairs lights.


http://answers.angieslist.com/I-water...

http://answers.angieslist.com/I-water...

http://answers.angieslist.com/Water-l...

http://answers.angieslist.com/water-l...

http://answers.angieslist.com/Water-c...

http://answers.angieslist.com/Water-c...

Answered 10 months ago by LCD




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