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Posted by JOHN D on June 11, 2006, 4:28 am
I haven't actually been up there for a close look, but the house was new 12
years ago so it was all new flashing and roof then. The house was built by
an owner/builder who is works in the building trades and is very picky about
how he does things. My theory is that the asphalt across the valley bridged
an air gap between it and the aluminum flashing below which, without contact
with it's backing, allowed it to get hotter than the rest of the roof and
deteriorate faster. From the ground the rest of the roof looks like new. The
valleys have holes where you can see the aluminum. I doubt that anyone
walked on the valleys cus the house has only been occupied by me and the
builder and all 3 valleys have the same damage. I've not confirmed the
valleys are leaking but something is and they look bad. There's a place
where a gutter from a higher roof discharges onto a roof plane below which
is near the spot where the water comes in. Repairs I can do but a whole roof
is too big a job for me. Sometime this week Ill go up for a closer look and
maybe post some pictures if I can figure out where to post them.
John
>
> tom wrote:
> > JOHN D wrote:
> > Do I
> > > have to remove (and replace) one shingle either side the whole lenght
of the
> > > valley to do it right?
> > Yes. And possibly more than one shingle out to get the old 90# out of
> > the valley. The whole length, yes. Keep your new fasteners at least 6
> > inches away from the valley intersection, and cut your "ears"(the
> > points of the shingles that extend into the valley proper). Tom
>
> Probably easier to just replace the entire roof and all other flashing.
>
> Was all the flashing replaced 12 years ago? People cheap out and
> replace roof and not flashing, then have trouble later.
>
> anyone walk up that valley?
> that can cause leaks, never walk on valleys!
>
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