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Scott Patterson · #3 (**permalink**) 04-02-2007, 04:47 PM

Quote:

Originally Posted by Eric Shuman

I have been seeing this off and on for some time and am wondering if this is a manu. defect that anyone knows of, or if this is just how this type of shingle begins to wear.

The granules start deteriorating at the edges and the fiberglass begins to show. It is easy to spot on a sunny day as the edges reflect the light.

Thanks,

Eric

That's a good sign that the roof needs replacing. The edges receive the most wear from the water running off the roof, this is usually the first place to show wear. I would think that if the abrasions were from a haphazard installation it would not be as widespread as in the photo, or down to the fiberglass.