For this customer we did a full Atlas Signature Select Roofing System. We tore off all of the previous shingles and underlayment. Then we installed our Atlas Summit 60 synthetic underlayment. We installed ice/water shields in the valleys of the roof. To finish up the replacement we installed our Atlas Glassmaster 3-tab shingle, and replaced all old plumbing boots with standard 3-in-1 boots. Ridge vents were installed around all ridges of the roof.