Tucson’s abundant sun makes rooftop solar a smart investment — and an unintended gift to roof rats. The sheltered gap between the panels and the roof is warm, shaded, hidden and elevated: close to ideal rodent habitat, sitting right on top of the entry points rats already use. As solar has spread across the metro, “rats under the panels” has become a routine call.
Why panels attract roof rats
A solar array creates a protected cavity a few inches above the roof surface, running the length of the panels. For a roof rat — a climber that already wants to be on your roof — that space offers shade from the desert sun, shelter from predators and weather, and warmth, all directly above the tile terminations and roofline gaps it enters through. The panels do not create the entry points, but they give the rats a comfortable base camp right beside them.
The damage they do
- Chewed wiring. Solar systems have accessible wiring under and around the panels, and rats gnaw it — which can disable parts of the array and, at worst, create a fire risk.
- Nesting debris and droppings accumulating under the panels, contaminating the roof.
- Roof damage from concentrated activity and from rats working at roofline gaps beneath the array.
- Easier attic entry — a rat living under the panels is perfectly placed to exploit any roofline gap into the attic.
How to exclude rats from solar — without removing it
The standard solution is critter guard / solar skirt mesh — a rodent-proof barrier clipped around the perimeter of the array that closes off the gap between the panels and the roof, so rats can no longer get underneath. Fitted correctly, it is invisible from the ground and does not affect the system. It is paired with the usual roof rat work: clearing any animals already present, sealing the roofline entry points beneath, and cutting back tree canopy that gives access to the roof in the first place. See how to get rid of roof rats.
Do it before the wiring goes
The time to fit panel exclusion is before there is damage, or at the first sign of activity — droppings on the roof, noise overhead, or a drop in system output. Chewed solar wiring is an expensive and awkward repair, so closing off the habitat early is far cheaper than dealing with the consequences. If you are installing solar, adding critter guard at the same time is the ideal moment.
Quick answers
Why are there rats under my solar panels?
The gap between panels and roof is a warm, shaded, hidden shelter directly above the roofline gaps roof rats already use. It is close to ideal habitat for them.
Can you get rid of them without removing the panels?
Yes — perimeter critter-guard mesh closes off the under-panel gap without touching the system, paired with clearing the animals and sealing the roof beneath.
Will they damage my solar system?
They can — chewed wiring can disable parts of the array and create a fire risk, on top of droppings and roof damage. Early exclusion avoids it.
Rats moved in under your panels? Book a free inspection and we will fit exclusion and seal the roof beneath.
Roof rats in the attic?
Our roof rat control starts with sealing the roofline, then clears what is inside. See what rodent control costs in Tucson for real price ranges, or book a free inspection: species, every entry point and the scope in writing before anyone quotes you a number.
