Why Squirrels and Iguanas Love Your Solar Panels (And How to Stop Them)

Your solar panels are generating clean energy, lowering your Duke Energy bill, and quietly baking on your roof in 140-degree heat. From where a squirrel, iguana, or raccoon sits, that sounds like the perfect place to raise a family.

Central Florida's wildlife doesn't read warranties. They don't care that a nest under your Enphase microinverters is voiding your manufacturer coverage. They care that your panel array is warm, elevated, dry, and—on Spanish tile roofs especially—full of deep, sheltered gaps just the right size for nesting. If you haven't thought about critter damage yet, there's a reasonable chance something is already living under your system right now.

Why Animals Are Drawn to Solar Panels in the First Place

It starts with physics. Rooftop panels in Central Florida regularly hit surface temperatures above 140°F during peak afternoon sun—but the underside of the panel, shaded and thermally moderated, sits far cooler. That creates a microclimate: shaded, warm, elevated off the ground, and hidden from predators. For Florida's wildlife, it checks every box.

Squirrels

Eastern gray squirrels are the most destructive solar pest in Central Florida, and they're the one most installers never warn you about. Squirrels chew. That's not a behavioral quirk—their incisors grow continuously, and gnawing on hard materials is how they keep them manageable. Under your panels, that means wiring harnesses, conduit insulation, and the low-voltage DC cables that connect your modules are all fair targets.

Chewed wiring under solar panels is not a minor inconvenience. It's a fire hazard. Exposed DC conductors arcing against each other or against metal racking in the dry heat of a Florida attic can ignite roofing material. Beyond fire risk, damaged wiring causes individual modules to drop offline, which you may not notice for months unless you're actively monitoring your system's output. By then, the squirrels have been living rent-free under your array for an entire season.

Green Iguanas

Here's something your installer from out of state almost certainly didn't mention: Florida has a green iguana problem, and it's not going away. Green iguanas ( Iguana iguana ) are an invasive species in Florida, which means the Florida Fish and Wildlife Conservation Commission (FWC) has no removal mandate. They're not protected, but they're also not anyone's responsibility to control. That's your problem.

Adult iguanas can reach five feet in length and weigh up to 17 pounds. They bask in warmth, which makes south-facing solar arrays on tile roofs extremely attractive. The immediate damage is mechanical—an iguana moving around under or between panels can dislodge junction box covers, shift panel alignment, and crack the glass on lower-quality modules. Their droppings are highly acidic and, left on panel glass over time, can etch the anti-reflective coating the same way bird droppings do.

If you've seen iguanas on your roof and assumed they were just passing through, they probably weren't.

Raccoons and Birds

Raccoons don't chew wiring, but they build substantial nests and are strong enough to physically displace panel mounting hardware. A raccoon nest under your array traps moisture against your roof deck, accelerating shingle and tile deterioration directly beneath your panels—the area that's hardest to inspect without removing equipment.

Pigeons and other birds nesting under panels create a different problem: accumulation. Nesting material, feathers, and droppings pack into the gap between the panel and the roof, blocking airflow. Panels that can't cool themselves from below run hotter, and heat is the single biggest enemy of solar panel lifespan. A module running 10°C hotter than its rated temperature loses measurable efficiency and ages faster. Bird droppings on panel glass are also more than cosmetic—they create hard-shaded spots that cause localized heating issues in the cell layer underneath, a condition called hot spots, which can permanently damage a module.

Spanish Tile Roofs: A Perfect Nesting Environment

If your home has a Spanish barrel tile roof—extremely common in Central Florida subdivisions from Clermont to Lake Nona—you have a compounded problem. The curved tile profile creates natural channels and cavities under the panel mounting feet that animals can move through laterally. A squirrel that finds one entry point can access the entire underside of your array without ever being visible from the ground. Installers who use standard flat-flashing mounts on tile roofs often leave gaps at the panel perimeter that are effectively open doors.

Flat asphalt shingle roofs aren't immune, but the gap is smaller and less hospitable. On tile, you're dealing with a genuinely inviting space.

Why DIY Critter Control Doesn't Hold Up

A common response to this problem is hardware store mesh stapled around the panel perimeter. It seems logical, and for about three months, it might even work. The problems compound quickly after that.

Standard chicken wire or hardware cloth isn't UV-stabilized. Florida sun breaks it down within a season, leaving brittle, sharp-edged gaps that are arguably more dangerous to wiring (and to anyone on the roof) than no barrier at all. Stapling into roofing material voids most roofing warranties and can create water intrusion points. Improperly installed mesh can also trap debris—leaves, oak pollen, palm seeds—against your panels, accelerating the buildup you're trying to prevent.

There's also the small matter of what you're doing on the roof. Walking a tile or shingle roof without knowing where to step causes damage. Solar installers see cracked tiles under panel arrays constantly, and the culprit is usually a well-meaning homeowner who went up to take a look.

What Professional Critter Guard Actually Looks Like

Professional critter guard uses UV-stabilized galvanized steel mesh—not chicken wire—installed with purpose-built clips that attach directly to the panel frame without penetrating roofing material. The mesh wraps around the full perimeter of the array, sealing the gap between panel edge and roof surface without blocking airflow or creating debris traps.

Done correctly, a critter guard installation also involves clearing any existing nesting material from under the array before sealing it. An animal sealed inside the perimeter is worse than no barrier at all. At Solarama, we inspect the full underside of the array before installation, document what we find, and remove any nesting material. We also check every wire harness and conduit run visible from below—because if squirrels have been active, the wiring has likely already taken some damage worth knowing about.

The investment is straightforward: Solarama's critter guard service runs $25 per panel . For a typical 20-panel system, that's $500 to protect an asset worth $20,000–$30,000 from the single most common source of non-weather-related physical damage in Central Florida.

How to Know If You Already Have a Problem

Signs of wildlife activity under your panels include:

• Unexplained production drops on specific modules (check your Enphase Enlighten or SolarEdge monitoring app)
• Visible nesting material at panel edges
• Rustling or scratching sounds from the roof, particularly in early morning
• Droppings concentrated in one area of your roof or driveway below the array
• Physical damage to conduit or wiring visible at the panel edges

If you're not sure whether your system is producing what it should, start with a Free Bill Evaluation from Solarama—we'll compare your actual utility bill against what your system should be generating given your panel count, tilt, and local irradiance. It costs nothing, takes about 15 minutes, and it's often the fastest way to find out whether a production problem is wildlife-related, a soiling issue, or something in the inverter. Most homeowners are surprised by what shows up.

Don't Wait for the Smell

The homeowners who call us after the worst wildlife damage are usually the ones who noticed something, assumed it would resolve itself, and waited. A squirrel nest that smells bad from the ground means the damage underneath is already significant. A single Florida storm season—even a mild one—is enough to push whatever wildlife is living under your array into more destructive nesting behavior as they try to secure their space.

Critter guard is one of those services that's dramatically cheaper before there's a problem. Like most things on a solar system, the window to act affordably is open right now—and closed the moment something fails.

Solarama LLC services Orange, Lake, Seminole, and Polk counties, seven days a week. License CVC57175. If something is living under your panels—or you want to make sure nothing does— book a visit at solarama.us/book or call us at 407-900-6055 . We'll take a look.