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Roof Mounted Solar Panels: What to Know

Installing roof mounted solar panels is a great way to save on your energy bill and help the environment. However, it's important to make sure your roof is in good condition before installing them. If your roof needs to be replaced, you may not be able to install solar panels until the new roof is installed. In this article, we'll discuss the importance of having a sturdy roof before installing solar panels. We'll also provide tips for ensuring your roof can handle the weight of solar panels.




A roof mounted solar panel system is a great way to save on your energy bill and help the environment. These systems can provide enormous savings for businesses and households. However, before installing roof mounted solar panels, it's important to make sure your roof is in good condition. If your roof needs to be replaced, you may not be able to install solar panels until the new roof is installed.


It's also important to make sure your roof can handle the weight of the solar panels. Most solar panels weigh between 40 and 80 pounds, so it's crucial that your roof can support their weight. In order to ensure your roof can handle the weight of solar panels, you'll need to hire a contractor who specializes in installing them. The contractor can help you select a roof that can support the weight of the solar panels and install them correctly.




Flat roofs, specifically low-slope roofs with parapet walls, are most prone to leaking in older homes and buildings built pre 1990. This is because the decking in many cases here no longer meets modern day international building code necessary to apply such weight. If your decking isn't sturdy enough to handle the weight, there will be serious pooling/ponding in the areas installed. If you're considering installing roof mounted solar panels, make sure your roof is in good condition and can handle the weight of the panels. By doing so, you'll be able to take advantage of all the benefits that solar panels have to offer.


Though most licensed solar contractors are more than capable of waterproofing the penetrations created by the solar mounts, it is still a good idea to consider hiring a roofing contractor for the extra set of professional eyes. When removing the panels for upcoming roof work, always consult with your solar panel contractor (first) to ensure you don't void any warranties with the solar panel manufacturer and service provider(s). It is rare that roof replacements, installs, and repairs can be worked around the panels. For best and most cost-effective results, it is best to install the panels over a new or restored roofing system. This will guard you from inflation and headaches from needing to deal with solar panel detach/resets in the future.

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*10 year labor warranty only available in Arizona, contingent on manufacturer's product installed. Not available on all roofing systems and types. Restrictions apply.

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