this week we are taking an in depth look at the pros and cons of asphalt shingles while we will try to cover the basics of the pros and cons of asphalt . this might require removal of curled edges on the old asphalt shingles as well as removing the overhang. asphalt shingle repairs. curling shingles. [slideshow . cracked, curling and pitted shingles. hanson roof tile.