Home / Bird And Critter Proofing For Solar Panels

Bird And Critter Proofing For Solar Panels

The gap between panels and the roof is a sheltered space, and birds sometimes nest there. Nests and droppings can collect debris under the array.

Signs You Have A Problem

• Twigs, nesting material, or feathers at the edge of the array
• Droppings streaking the panels below the edge
• Scratching or noises under the panels
• A sudden production drop or an inverter error

Common Proofing Options

• Wire mesh or critter guard: a galvanized or coated mesh skirt along the lower edge of the array that blocks entry. One example is the Killgerm solar panel mesh kit, described as a mesh and clip system designed to stop birds nesting under roof panels.
• Clips instead of drilling: the same kit is described as requiring no drilling, and clips fit the inside lip of the panel. Check that any kit you consider says the same.
• Cleanout first: a company should remove existing nests and debris before closing the gap.

Questions To Ask

1. Does the install touch my panel frame, and does that affect my warranty?
2. Do you wear safety gear and carry insurance for roof work?
3. Will you clean out nesting material and check the wiring first?
4. Is the mesh material rust resistant and will it allow airflow?