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re-roofing question al 07-01-2006
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Posted by al on July 1, 2006, 1:20 pm
New shingles were installed yesterday, but the roofers didn't shingle
over roof vent flashings in a couple of spots. They left one side
unshingled. On the other vents, there're shingles all around.
Actually what it looks like they did was to shingle underneath the
flashing, which wasn't done on the flashings that are covered. Does
this make any difference?

Something else they did that looks a bit out of the ordinary if I am
able to describe it. When they shingled a valley they cut the shingles
straight down the center of the valley (the top shingles anyway - I
assume there are shingles beneath that they overlap). The shingles
don't "span" from one side of the valley to the other, overlapping as
they go up. That's how the old roof was done. I'm concerned that
water will have a greater chance of settling in what is now a well
defined straight edge. If I've described this well enough to be
understood, does this way of doing it sound OK?

Thanks for any input.


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Posted by Tom The Great on July 1, 2006, 5:06 pm

>New shingles were installed yesterday, but the roofers didn't shingle
>over roof vent flashings in a couple of spots. They left one side
>unshingled. On the other vents, there're shingles all around.
>Actually what it looks like they did was to shingle underneath the
>flashing, which wasn't done on the flashings that are covered. Does
>this make any difference?
>
>Something else they did that looks a bit out of the ordinary if I am
>able to describe it. When they shingled a valley they cut the shingles
>straight down the center of the valley (the top shingles anyway - I
>assume there are shingles beneath that they overlap). The shingles
>don't "span" from one side of the valley to the other, overlapping as
>they go up. That's how the old roof was done. I'm concerned that
>water will have a greater chance of settling in what is now a well
>defined straight edge. If I've described this well enough to be
>understood, does this way of doing it sound OK?
>
>Thanks for any input.


If you can, get a photo and post it up on a free image hosting service
and post the url here. This way you can get the best reply you can
get for your questions.

hth,

tom @ www.FreelancingProjects.com



Posted by Jimmie D on July 2, 2006, 1:27 am

>
>>New shingles were installed yesterday, but the roofers didn't shingle
>>over roof vent flashings in a couple of spots. They left one side
>>unshingled. On the other vents, there're shingles all around.
>>Actually what it looks like they did was to shingle underneath the
>>flashing, which wasn't done on the flashings that are covered. Does
>>this make any difference?
>>
>>Something else they did that looks a bit out of the ordinary if I am
>>able to describe it. When they shingled a valley they cut the shingles
>>straight down the center of the valley (the top shingles anyway - I
>>assume there are shingles beneath that they overlap). The shingles
>>don't "span" from one side of the valley to the other, overlapping as
>>they go up. That's how the old roof was done. I'm concerned that
>>water will have a greater chance of settling in what is now a well
>>defined straight edge. If I've described this well enough to be
>>understood, does this way of doing it sound OK?
>>
>>Thanks for any input.
>
>
> If you can, get a photo and post it up on a free image hosting service
> and post the url here. This way you can get the best reply you can
> get for your questions.
>
> hth,
>
> tom @ www.FreelancingProjects.com
>
>

The low side of the flashing shouldnt be shingled over. If they used some
kind of "valley tin" this sounds about right.



Posted by al on July 2, 2006, 2:23 pm

Jimmie D wrote:
> The low side of the flashing shouldnt be shingled over. If they used some
> kind of "valley tin" this sounds about right.

Yes a valley tin flashing was used. And it is the low side of the vent
flashing that has been left un-shingled on 2 of the vents, but the
other two are shingled over. Is it necessary to get them back to
remove or redo the shingles in those two cases?

Thanks very much for the help....


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