Solar Panels on a Flat Roof: 5 Things to Know
By homesolarsessions | Nov 15, 2023
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Can you install solar panels on a flat roof? Yes, you can successfully install solar panels on the flat roof of your home or business. However, there are some challenges to be aware of. Flat roofs have a minimal slope allowance that will accommodate solar PV panel systems. A roof having a rise of 0.25 inches over a 12-inch run — known as a 0.25:12 pitch roof — is considered a flat roof. These roofs are also commonly known as:
- Low pitch roofs
- Low slope applications
Flat and low pitch roofs do provide some challenges for installers, but there are a number of solutions to adapt a solar system to unique roof types. Skip to 12:15 to hear Rex and Patrick discuss the main solar solutions for different kinds of flat roofing on Solar.com LIVE!
The challenges of installing solar panels on a flat roof
The key to a successful flat roof installation is identifying obstacles early in the process. Here are some structures to consider before installing solar panels on a flat roof:
- Drains
- Vents
- Exhaust fans
- Rooftop units
- Curbs
- Parapets
The key to overcoming these challenges is identifying them early on and choosing an experienced installer that can confidently navigate them. With hundreds of carefully vetted installers and dedicated Energy Advisors, the solar.com marketplace is a great place to start.
5 things to consider when installing solar panels on a flat roof
- You can install solar panels on a flat roof
- Costs are on par with the typical pitched roof
- Your solar panels may or may not be tilted
- There are higher risks for leakage because of pooling
- Solar panels on flat roofs may require frequent cleaning
As we’ve mentioned throughout the article, the key to successfully installing solar panels on a flat roof is finding an experienced and reputable installer to do it. Solar.com is a free online marketplace offering potential the best pricing quotes from a carefully-vetted network of installers. In fact, we accept just 30% of solar installers that apply to join our network (we’re that picky). Through the solar.com marketplace, you’ll be paired with a dedicated Energy Advisor that will help you:
- Design a solar system that meets your goals
- Find qualified solar installers in your local area
- Compare quotes, equipment options, and warranties
- Line up financing options
- Take advantage of federal, state, and local solar incentives (like the 30% federal tax credit!)
Start a solar project today with multiple quotes from vetted installers.
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