Solar panels use racking systems with several mounting options, and they can be used on most residential roofs. However, even if you have an adequate roof, finding the optimal orientation and layout for your panels is also very important. Ideally, you will want to use the roof areas with the most sunshine, while avoiding shaded areas as much as possible – even a small shadow can greatly reduce the energy output of your solar array.
On the other hand, some roof tiles may be damaged if your roof uses a brittle material like slate or clay. However, if you work with professional solar installers, the number of broken tiles will be minimal or zero.
Asbestos is the only roofing material that may limit your ability to add solar panels as most providers will not work on these roofs. Harmful fibers are released when manipulating asbestos, especially when drilling. These fibers are not only dangerous for the installers, but also for anyone living under that roof. If this is your situation and you plan to go solar, a complete and well-planned roof replacement is strongly recommended.