How to find a leak in the roof

It's near the vent; I can't get in that part of the attic to see where it's leaking.
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On 3/4/2016 9:28 PM, snipped-for-privacy@gmail.com wrote:

If it is near the vent, there is a good chance it is the flashing. I'd check that first.
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On Friday, March 4, 2016 at 9:47:36 PM UTC-5, Ed Pawlowski wrote:

+1
I wouldn't even go into the attic. If it's a typical plumbing vent, they have rubber boots that don't last all that long. Solution is to get a new one. There are videos of how to replace one. I'd just go up on the roof and take a look first. For temporary repair, you can usually use some silicone caulk, assuming it's just cracked.
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In wrote:

I agree. And, if (like me), the OP is not a fan of going up on the roof himself, he can probably just pay a roofer or even an experienced handyman/contractor-type person to go up on the roof, locate the problem, and make the repair. In my local area, I have a person who can do that and does do that for a very reasonable price. But, if it is a steep roof, I usually just have a roofer do the inspection and repair and make the repair.
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On Friday, March 4, 2016 at 9:29:01 PM UTC-5, snipped-for-privacy@gmail.com wrote:

How do you know it's near the vent?
One way to be sure would be to take a garden hose up on the roof and apply water to specific locations and see if that allows water to appear wherever it is that you are seeing it.
Try placing the hose just barely above the vent so the water flows around the boot/flashing. You could even slip a tarp under the shingles below the vent so that the water flows over the tarp. This would pretty much isolate the vent so you would know for sure.
Of course, it might take nothing more than a visual inspection of the vent boot/flashing. Look for cracking, etc. Good luck!
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