Sunprint
The short answer
Solar panels can cause roof leaks, but only through installation. Every mount that's screwed through the roof makes a hole, and a hole that's properly flashed and sealed sheds water like any other roof penetration, such as a plumbing vent. That's why the Florida Residential Code requires rooftop solar penetrations to be "flashed and sealed," and why a standing-seam metal roof, where clamps grip the seams without drilling, avoids the issue entirely.
Where solar leaks come from
- Mounts. Each attachment is a screw or bolt through the roof into a rafter. A typical home system has many of them, so the quality of each one matters.
- Flashing done wrong. Flashing only works when water flows over it. A plate that sits on top of the shingles above it, instead of under them, lets water run straight to the hole.
- Sealant used as the only defense. Sealant is part of a flashed mount, not a substitute for flashing.
- Broken or shifted roofing. On tile roofs, cracked or badly reset tiles around a mount can let water reach the underlayment.
- Wiring through the roof. Where conduit or cables pass into the attic, that penetration needs flashing too.
Why this matters more in Florida
Florida roofs take a lot of water. NOAA's 1991 to 2020 climate normals show how much falls in a typical year, and how many days bring an inch or more:
Source: NOAA NCEI U.S. climate normals, 1991 to 2020, airport stations. Days with 1 inch or more of rain per year.
Miami and Pensacola average about 20 days a year with an inch or more of rain, and summer storms and hurricanes add wind-driven rain. A small flashing mistake that might take years to show up in a drier state can show up in the first rainy season here.
How mounts are sealed on each roof type
| Roof | How panels attach | Where water could get in |
|---|---|---|
| Asphalt shingle | Flashed mounts screwed into rafters, with the flashing slid under the shingle course above. Florida code allows shingle flashing per the manufacturer's instructions or the state's RAS 111 standard. | At each mount, if the flashing isn't tucked under the upper course or the hole isn't sealed. |
| Concrete or clay tile | Tile hooks or replacement mounts where a tile is removed, flashed into the underlayment. Florida code points tile flashing to the FRSA/TRI Florida High Wind tile installation manual. | Cracked tiles, and mounts not flashed to the underlayment. |
| Standing-seam metal | Clamps that grip the raised seams, with no holes in the roof. | Almost none from the solar mounts themselves. |
| Exposed-fastener metal | Brackets screwed through the metal into the structure, sealed like any penetration. | At each bracket, if it isn't sealed properly. |
Our guide to solar on tile and metal roofs covers those mounting systems, costs and roof warranties in detail.
What the Florida Building Code requires
- Flashed and sealed penetrations. Rooftop solar penetrations "shall be flashed and sealed" under the roofing chapter (Florida Residential Code R324.4.3).
- Flashing that sheds water. Flashing must prevent moisture from entering at penetrations through the roof plane, and metal flashing must be corrosion resistant and of a minimum thickness (R903.2).
- Listed racking, installed as designed. Mounting systems must be listed to UL 2703 and installed per the manufacturer's instructions and listing (R324.3.1).
- Structure and wind. The roof has to carry the system's loads, and the system has to be designed for wind (R324.4.1).
- Permits and inspection. The attachment details go on the permit plans, and the local inspector checks the installation. Our permit guide explains the process.
Who is responsible if it leaks: warranties
Panels and racking carry the manufacturers' product warranties, the installation carries the installer's workmanship warranty, and your roof may carry its own. A leak at a mount is usually a workmanship question.
Ask how long the workmanship warranty lasts and whether it names roof leaks, and whether the company removing and reinstalling the panels for a future roof repair is covered. If your roof is still under a roofer's or manufacturer's warranty, find out before the installation whether rooftop attachments affect it. Any warranty depends on the company still being around; see what happens if your solar company goes out of business.
What to ask before anyone drills
- Which attachment system will you use on my roof type, and what flashing does its manufacturer require?
- How many attachment points, and will they go into rafters or trusses?
- Will you photograph every flashed mount before the panels cover it, and give me the photos?
- How long is your workmanship warranty, and does it cover roof leaks and the interior damage they cause?
- Where will the wiring enter the house, and how is that penetration sealed?
- If my roof needs repair later, what does removing and reinstalling the panels cost, and who does it?
If your roof is getting older, weigh replacing it first; our guide to reroofing before solar covers the timing and the 15-year insurance rule.
If your roof leaks after solar
- Document it. Photos of the stain and any drips, with dates, and a look in the attic under the array if it's safe to get there.
- Make a written warranty claim to the company that installed the system, with your photos and contract.
- Don't let anyone just smear sealant over it. A repair should restore proper flashing, not add a coat of caulk.
- Stay off the roof. Working around energized panels is a job for licensed professionals.
- Check your insurance if water damaged the inside of your home; our insurance guide covers how solar fits your policy.
Your estimate in three steps
- Enter your billYour ZIP code, your utility and last month's bill.
- See your estimateA yearly savings range based on your utility's rates and Florida sun.
- Choose what's nextAsk for a quote call if you want real pricing, or just keep the number.
See what solar could save you
It takes about a minute. You don't need a site visit, a commitment or a sales call to see your number.
Common questions
Do solar panels cause roof leaks?
Not by themselves. Leaks come from the attachment points where mounts go through the roof, if they aren't properly flashed and sealed. Florida's Residential Code requires rooftop solar penetrations to be flashed and sealed, and standing-seam metal roofs can use clamps with no roof penetrations at all.
Can installing solar panels cause roof leaks?
Yes, if the installation is done badly: flashing that sits on top of the shingles above instead of under them, holes sealed only with caulk, cracked tiles, or an unsealed wiring penetration. Properly flashed mounts shed water like any other roof penetration.
Do solar panels damage your roof?
A code-compliant installation shouldn't. The racking must be listed to UL 2703 and installed per the manufacturer's instructions, the roof must be able to carry the system's loads, and every penetration must be flashed and sealed. The bigger practical issue is roof age: an old roof may need replacing while the panels still have years left.
How are solar panels attached to a tile roof in Florida?
With tile hooks or replacement mounts installed where a tile is removed, flashed into the underlayment. Florida's code points tile roof flashing to the FRSA/TRI Florida High Wind Concrete and Clay Roof Tile Installation Manual.
Who pays if my roof leaks after solar is installed?
A leak at a mount is usually covered, if at all, by the installer's workmanship warranty, so check how long it lasts and whether it covers roof leaks and interior damage. Make a written claim with photos to the company that installed the system.
Related guides
- Solar on tile and metal roofs in Florida
- Should you replace your roof before going solar?
- Solar panels and hurricanes in Florida
- How long do solar panels last in Florida?
- Solar and homeowners insurance in Florida
- How long does going solar take in Florida?
The diagram is simplified for illustration; actual mounts and flashing follow each manufacturer's instructions. Sources: Florida Building Code, Residential, 8th edition (2023), Section R324 · Florida Building Code, Residential, 8th edition (2023), Chapter 9 · NOAA NCEI U.S. climate normals, 1991 to 2020. Reviewed September 2026.
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