Product Warranty: A solar product warranty is the typical manufacturer's warranty, which guarantees coverage for any defective material. Most companies will offer product warranties for around 5 to 10 years and can be extended from an additional 5 to 15 years for a total of 25 years. Solar inverters typically last 10 to 12 years and generally need to be replaced at least once. When you use solar energy, the warranty on your roof is void on the part of the roof where you install solar energy.
In most cases, solar panels will not void the roof warranty. However, you should be careful with some companies that may install solar panels without considering the consequences of some actions, such as drilling holes in the roof. Before installing a solar panel, it's a good idea to ask your solar energy provider to coordinate with your roofing contractor. It's even better if both services are provided by the same company.
Second, the roof structure must have sufficient load capacity to support the additional weight of the solar panels and their racking system, and a margin for loads such as snow and wind. The addition of solar panels is an excellent opportunity to rely less on fossil fuels and generate clean, green energy for your home. In fact, solar panels can extend the life of your roof at least in the section below them. In most cases, your roof warranty will not be invalidated by a solar installation, but only if the installer did the job correctly and met the guidelines provided by the manufacturer of your roofing product.
If you still have an installer warranty on your roof, check with your solar installer before starting the solar installation process. When a solar panel is installed on your roof, it will be installed on one of the available solar racking systems. In the end, it is the landlord who pays and sometimes finds their 25- or 50-year roof warranty null and void due to neglect of the solar installation equipment. A new roof isn't cheap, but before signing the dotted line for solar panels, homeowners should make sure they don't create a problem with their roof.
In addition, if the shape of your roof has an angle of inclination, it must be taken into account when mounting the panels. While solar panels produce electricity, solar thermal panels heat the water that will be used in your water heater. It's discouraging to see the damage that can occur when a solar contractor doesn't respect the roof or the roofing contractor's work. If you value lower electric bills, clean energy that's good for the environment, and utility independence, then installing a solar energy system on your roof (perhaps along with a solar energy storage system) also seems like a good investment.
Even so, it is possible that solar installations go wrong and your roof will end up leaking or the warranty will be voided. Mono solar panels are made of a single silicon crystal, while poly is made from melting crystals in multiple cells.