Short answer: Not on their own — solar panels themselves don’t cause leaks. Leaks near solar installations almost always trace back to how the mounting hardware was installed (flashing and sealing around roof penetrations), not the panels. A properly installed system shouldn’t introduce new leak risk.
Solar panels are mounted to your roof using brackets that are bolted through the roofing material into the structure underneath, which means every mounting point is a potential entry spot for water if it isn’t flashed and sealed correctly. That’s a real risk worth understanding — but it’s a workmanship issue, not an inherent flaw in having solar on your roof.
What actually causes solar-related roof leaks
- Improperly sealed mounting penetrations. Each bracket needs proper flashing (not just caulk or sealant alone) around the point where it passes through the roofing material — this is the most common cause when leaks do happen.
- Pre-existing roof issues masked by the panels. An aging roof, worn underlayment, or minor existing damage can go unnoticed once panels are installed, since the panels can make it harder to spot and access problem areas later.
- Foot traffic and installation damage. Crews walking across the roof during install can occasionally damage shingles or tiles nearby if care isn’t taken — separate from the mounting points themselves.
- Skipped roof inspection before installation. Installing solar directly onto a roof that already needed repair or replacement is one of the more common ways leak risk gets introduced.
How leak risk is typically prevented
- A roof inspection before installation, not just a solar site survey — checking the roof’s actual condition, not only its suitability for panels.
- Proper flashing at every mounting point, installed by crews experienced specifically with solar mounting hardware, not just general roofing or general solar work in isolation.
- A clear plan for who’s responsible if an issue shows up later — this is where having one team handle both the roofing and the solar work typically simplifies things, since there’s no gap between two companies pointing at each other.
How SunSent approaches this
Because SunSent handles both roofing and solar in-house, the same team that assesses your roof’s condition is the one installing the mounting hardware — so flashing and sealing decisions are made with full knowledge of your roof’s actual condition, not a generic solar-only checklist. If a question ever comes up after installation, there’s one team to call, not two companies to coordinate between.
FAQ
Can solar panels damage my roof?
The panels themselves don’t damage roofing material. Risk comes from how the mounting hardware is installed — proper flashing and sealing at each penetration point is what prevents damage, not the presence of panels.
How do I know if a leak is related to my solar installation?
Water stains that appear near mounting points or that started after installation are worth having inspected promptly. It’s not always solar-related — an existing roof issue can also surface around the same time — so a proper inspection is the way to confirm the cause rather than assuming either way.
Does a solar installation void my roof’s leak warranty?
It depends on your specific roofing and solar warranties and who performs the installation — worth confirming with your roofer and installer before work starts, especially if they’re different companies.
Will SunSent inspect my existing roof before installing solar?
Yes — because SunSent handles roofing and solar together, a roof condition check is part of the process before mounting hardware goes in, not an optional add-on.