Hmmm, called warranty dept and my house has Owens Corning OakRidge shingles, installed in approx March 2006.
The original roof blistering problem was on the Supreme and Classic series. This more recent issue affects OakRidge shingles where granules are breaking loose. Warranty said OC will contact me if I have a potential issue.
So, do I wait patiently or proactively contact OC or a local roofer to take a look. To date, no noticeable symptoms. For those of you who have had recent action, did OC contact you first?
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Maryland (DC Suburbs) - first 51 years 
The Villages - next 51 years
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