Ask the Builder: Why your asphalt shingles are falling apart

Q: Tim, I’m beside myself. My expensive asphalt shingles that have a 30-year warranty are less than 10 years old and starting to curl. I see lots of roofs around me doing the same. I never recall observing this type of defect in all my past houses with asphalt shingles. Did I get a bad batch? What’s going on? –Charlie, Raleigh, N.C.
A: Do your curled shingles look like the asphalt potato chips up on Charlie’s roof? Guess what, it happened to me. My own 30-year-warranty as