help ... low-pitch part of roof ... leaking like crazy

blakekrOctober 27, 2011

Part of the roof that covers a former porch (now a "3 season room) has started leaking like crazy. This part of the roof has a very low pitch, and (predictably) it's the only part of the roof you can't see from the underside in the attic. The leak is coming in the outside wall on the far left side, but I don't think that's where the water's coming in. I have tons of roof tar and I thought I'd jut patch it, but I couldn't see a trace of where the problem was when I went up on the roof. I threw a tarp over the general area and that seems to have possibly helped a little, but I'm not sure.

Any tips for finding this leak? I could take some pictures tomorrow if that would help ....

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I'd look higher up on the rafters and roof decking
from inside the attic for moisture and water stains.
water can enter high and exit low
the leak may be higher and running down to lower
roof where you see the leak.

best of luck

    Bookmark   October 27, 2011 at 9:53PM
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Thank you ... that is the first thing I did, went up to the attic with a flashlight and I didn't see any evidence of moisture at all ... I will check again tomorrow when there's a little more light.

    Bookmark   October 27, 2011 at 10:02PM
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Look at the connection points to the main house where the flashing is, that would be where I would start investigating.

    Bookmark   October 28, 2011 at 8:01AM
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I had the same problem in my prior house, and you could not see any obvious spot where water could get in. Unfortunately, the smallest crack (you can't see) will leak like crazy, especially under a steady rate of water. If you put a good tarp over it and it stops leaking, that obviously means it's the roof itself. I used rolled roofing and tar in my prior home to solve this. If the tarp does not solve the leak, I agree with millworkman and would add to check to see if there are any sections of siding that have cracks or gaps. and you see no evidence it
s running

    Bookmark   October 31, 2011 at 3:58PM
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