Depending on how old your roof is you may need to replace your roof before installation. If your roof is older than 20-25 years old depending on the condition of your roof we may recommend replacing your roof before getting panels installed. For more tips read our blog on the signs you should look for in an aging roof: https://bostonsolar.us/solar-blog-resource-center/blog/is-it-time-for-a-new-roof/
It would be good to start out with a new roof before you put it on I had a new one on my house already they do an awesome job what it really looks nice to
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