Electrical connections and roof warranties are among the elements that must be considered.
Roofing contractors that install solar panels in Arizona must qualify as solar contractors and comply with regulations set by the Arizona Registrar of Contractors. Installation of roofing tiles that collect solar energy must be performed by a CR-42 roofing contractor. Connections to the electrical system must be done by licensed electrical contractors. Roofing contractors should also inspect solar panels to ensure they don't void the roof warranty.