Automatic roof shingle removal and installation system

An automatic roof shingle removal system comprising:

• a navigational apparatus configured to traverse a roof without the use of guide rails, wherein the navigational apparatus comprises a structural body housing an integrated circuit comprising a microcontroller, a gyroscope, and an accelerometer;
• and,
• a roof shingle removal apparatus comprising a prying member configured to pry existing shingles from the roof, wherein the existing shingles pried from the roof are stored in a debris bin,
• wherein the navigational apparatus comprises at least one movable drill assembly including at least one independently actuated drill configured to drill a lag screw into the roof preventing the navigational apparatus from slipping off the roof, and a mounting element configured to attach the roof shingle removal apparatus to the navigational apparatus such that the roof shingle removal apparatus is enabled to traverse the roof via the navigational apparatus, and wherein the at least one movable drill assembly is a movable horizontal drill assembly and a movable vertical drill assembly, wherein the movable horizontal drill assembly and the movable vertical drill assembly each include two independently actuated drills.