Solar is a great investment for most Texas homeowners. But there’s a question that comes up repeatedly in consultations: “My roof is 15 years old. Can I still add solar?”
The honest answer is: it depends on the condition of the roof, and getting that question right before installation matters more than most people realize.
Why Roof Condition Matters Before Solar
Solar panels are mounted to your roof and designed to stay there for 25 to 30 years. The typical warranty on quality solar panels covers 25 years of performance. If you install solar on a roof that has 5 or 6 years of useful life remaining, you’re setting yourself up for a costly situation: removing and reinstalling the solar system when the roof underneath needs replacement.
That removal and reinstallation — called a detach-and-reset in the industry — typically costs $1,500 to $3,500 or more depending on system size. It’s not a minor inconvenience. It’s a predictable expense that can be avoided by making the right sequence of decisions before solar goes on the roof.
What to Inspect Before Installing Solar
A thorough roofing inspection before a solar installation should cover:
- Shingle age and condition. How many years does this roof realistically have left? A 15-year-old roof in Central Texas might have 5 to 10 years remaining, or it might be in noticeably accelerated decline from UV exposure and past storm events.
- Decking integrity. Solar mounting penetrates through the shingles and fastens to the roof deck. If the decking has areas of rot or deterioration, those need to be addressed before solar goes on. A poor deck is a poor foundation for solar anchoring.
- Flashing and penetration condition. Solar installation adds new penetrations through the roof. Existing flashing failures and water entry points need to be resolved first so the solar installation doesn’t go on top of existing problems.
- Structural capacity. Solar panels add weight — typically 3 to 4 pounds per square foot. Most residential structures handle this easily, but unusual framing or an already-loaded roof should be evaluated.
Age Is a Starting Point, Not the Whole Answer
A 15-year-old roof isn’t automatically too old for solar. Some 15-year-old roofs in Central Texas are in solid condition with a decade of useful life ahead. Others have been through repeated hail events, had questionable installation, or have been sitting without maintenance — and they’re legitimately near the end.
The inspection is what answers the question, not the age alone. That’s why Divided Sky includes a thorough roof assessment as part of our solar consultation process. We’re going to be mounting hardware on your roof. Understanding that roof’s condition is part of doing the job right.
When Doing Both Together Is the Smart Move
If your roof has 5 years or fewer of useful life remaining, replacing the roof before or at the same time as the solar installation avoids the detach-and-reset cost down the road. Doing both in the same project also means one contractor, one mobilization, one set of permitting processes, and aligned warranties between the roofing system and the solar system.
Divided Sky handles both roofing and solar installation. When a homeowner needs a new roof and wants solar, we can do both in a single coordinated project. The financial case for combining them is straightforward: you’re not paying for two mobilizations, two sets of overhead, or a future detach-and-reset that could have been avoided.
What If You Can’t Do Both Right Now?
If your budget doesn’t allow for a combined roof-and-solar project right now, and your roof inspection shows solid remaining life, solar on your current roof may be a reasonable choice. The key is having an honest conversation with a contractor who knows both systems and can give you a realistic estimate of your roof’s remaining useful life before you commit.
That’s the conversation we’re ready to have. If you’re in San Marcos, Kyle, Buda, New Braunfels, or anywhere in Central Texas, contact Divided Sky for a combined roofing and solar assessment.
