Before Solar Installation
If you are working with professional solar installers, any worrisome roofing situations will already be noted by a site surveyor before the panels are installed. Homeowners are notified, and many choose to fix potential problems or reroof their home before moving forward with the solar process. This is a great way to ensure there will not be any problems post-installation.
Potential solutions could be partial or full reroofing, or more simple repairs might include fixing shingles or drainage. It is not only a good idea to address these problems if you are going solar, but also for good roof maintenance to prevent larger problems from arising in the future.
Another potential problem is an incompatible roof. Roofs with wooden, slate, clay, or terracotta shingles run a higher risk of damage during installation, sometimes in ways an expert installer may not notice. Most site surveyors will recommend specific areas of the roof be re-shingled with composite shingles, which will be hidden under panels and will not compromise the overall aesthetic of the roof.