What is usually the cause of a leak around a bathroom vent?

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Posted by: from Whitby
10/27/2012 at 4:19:09 PM

We have a leak around our bathroom vent, not everytime it rains, but frequently enough to be of concern. We have had the roof replaced about 12 years ago with a reputable company.

Where should we start to get the problem resolved?

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Date/Time10/27/2012 at 10:57:10 PM

If it is leaking only when it rains. Then I would start with the vent outside the house, either it's on the roof or on an exterior wall. That's the most likely cause, either it's broken or the seal (caulking) has failed.

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Date/Time10/31/2012 at 10:52:57 AM

If the leak is visible in the truss/sheathing area, then you most likely have an issue with the flashing or install of the vent. I would have your roofer take a look as they are the ones who put in the roof vents.

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Date/Time10/31/2012 at 2:09:35 PM

if ur roofing material is good it will b the plastic b vent needing to b replaced a 25 dollar vent to b changed.

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Date/Time10/31/2012 at 5:04:22 PM

First, your pipe (venting) is not insulated causing condensation. Also, we normally extend the piping so as any minimal condensation has enough time to dissipate preventing any damage from occurring by the time it reaches the interior fan area.

I hope this helps you!

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Spencer from All Home Repair in St Thomas
Date/Time11/1/2012 at 7:51:23 AM

Start at the roof as they will be the only source for water getting it the vent.

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