Quote:
Originally Posted by Happinow
I believe the problem with the Owens Corning shingles started before we moved here. I have read many threads on this problem but never knew what the problem was with the shingles and why they needed to be replaced? I find that when it rains, the little black "beads" come off the roof. Is that what part of the problem was and should I be concerned?
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The problem with the shingles deemed defective is when they were manufactured the aggregate, or stones were not properly pressed into the matting.
This occurred in their Jacksonville Florida plant. The rollers were not adjusted correctly, resulting in the stones not fully adhering to the substrate. This has caused premature wear and stone loss.
Now understand that SOME stone loss is normal, especially on a new roof. Through the years more stone can and will detach and that is normal. On the defective shingles, this happens prematurely and at an increased rate. There is a certain look to them, and when walking on these defective shingles they feel different. You can see areas of sparse stone and small "pockmarks" where stone has come off. You can sometimes find copious amounts of loose stone in the gutters and at the end of the downspouts. The result is that a roof that is only about 3 years old will look like a roof that is 8-10 years old.
One of the problems here is that because SOME stone loss is normal, some folks are quick to assume that they have defective shingles, when they do not.
Hope that helps!
Respectfully, Frank