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Old 08-02-2012, 04:23 PM   #1
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Roof Flashing


We purchased a house in the winter and the house inspect refused to climb on the roof due too a large amount of snow.

After the snow melted we noticed that the seam between the add on garage roof and the house has a large gap aprox 1 inch in some spots. There is what looks like a shotty attempt to fill the gap with tar. See pictures

We are painting the house this summer and would like to fix this in the process. Any suggestions?

Thanks
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Roof Flashing-image-1172469597.jpg   Roof Flashing-image-12315563.jpg   Roof Flashing-image-1697828667.jpg  

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Old 08-02-2012, 08:23 PM   #2
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Roof Flashing


What type siding it that?
It never should have been installed that tight to the shingles or as you can see it's going to rot.
Done right there would have been no need for that caulking.
There should have been step flashing under the shingles up under the siding then another layer of solid flashing over that that also was under the siding and shingles.

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Old 08-02-2012, 08:40 PM   #3
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Roof Flashing


Joe hit it on the head. Best bet is to remove the siding to see if the flashing is any good. If it isn't, replace it and then replace the siding and keep it no less that 1-1/2" off the shingles.
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Old 08-02-2012, 08:46 PM   #4
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Roof Flashing


And for the fun of get someone to add vinyl soffits and wrap that soffit before it rots from not being painted.
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Old 08-03-2012, 09:21 AM   #5
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Roof Flashing


It takes all kinds at the end of the day but I am still amazed every time I see something like that.
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Old 08-03-2012, 11:36 AM   #6
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Roof Flashing


Can't tell if it's flashed properly through all that crap someone piled in there. That "gap" you are talking about is supposed to be there, The caulk is not.
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Old 08-04-2012, 10:37 AM   #7
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Originally Posted by OldNBroken View Post
Can't tell if it's flashed properly through all that crap someone piled in there. That "gap" you are talking about is supposed to be there, The caulk is not.
You are right, but I would bet the flashing is wrong if they are already up there caulking it in a effort to try to "fix" a leak.
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Old 08-04-2012, 11:17 AM   #8
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Roof Flashing


Not always. You know how it is. There is a leak and inexperienced people take caulk or pucky up there and attack the first thing they see that looks wrong.

Most of the time they just make it worse by trapping or diverting the water in the wrong place.
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Old 08-04-2012, 11:34 AM   #9
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Roof Flashing


Looks like Masonite siding and there’s not that much there, I'd remove it, inspect and/or rework the flashing and get the siding off the roof.

Hardie Plank has a 12” smooth panel that’s almost a perfect match to what you have. There's probably only a hundred bucks worth of siding there.
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Old 08-04-2012, 03:58 PM   #10
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Quote:
Originally Posted by OldNBroken View Post
Not always. You know how it is. There is a leak and inexperienced people take caulk or pucky up there and attack the first thing they see that looks wrong.

Most of the time they just make it worse by trapping or diverting the water in the wrong place.
I will give you that.

That "gap" is often thought to be incorrect and caulked while the source of the leak is elsewhere.
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Old 08-04-2012, 08:58 PM   #11
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Roof Flashing


The posters above are correct, there should be a "holdback" of the siding above the roof.

When the holdback is absent, we can only guess as to how the roof-wall interface was detailed, the correct "step flashing" detail looks like this:


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