Short Answer
Roof replacement involving solar equipment requires coordination between roofing and solar-system considerations.
Detailed Explanation
Yes, a roof can be replaced with solar panels installed, but it requires careful coordination. The solar panels must be removed before the roof replacement and reinstalled after. This requires coordination between the roofing contractor and a solar installer (or a company that does both). The removal and reinstallation of solar panels adds cost and time to the project. The solar mounting system (racking, flashing, attachments) must be evaluated — if the mounting system's flashing is integrated with the roof, it needs to be properly reinstalled with the new roofing. The roof deck must be sound where the solar attachments are made. Proper coordination ensures the new roof and the solar system are both properly installed and integrated.
Why It Matters
Roof replacement with solar requires coordination between two trades. Improper coordination can damage solar equipment or compromise the new roof.