Cupping or curling pattern will display shingles which are concave in their center, with the corners and possibly the three exposed shingle tab edges curled such that the very edge of the shingle curls downwards. The cause of this when Shingles have reached their useful life.
- Roofing cement (in caulk tube)
- Small pry bar
- Putty knife
- Caulk gun
- Paper towel or rags