What are solar panel critter guards, and do I need them?

Quick answer

The practical explanation

Critter guards are fitted barriers intended to limit bird and squirrel access beneath a rooftop array while preserving normal ventilation and drainage. They can be useful where animal activity, nesting material, droppings, or wiring exposure is present.

What to know

Three points to keep in mind

• The guard should be fitted to the array without damaging panel frames or the roof.
• Existing nests or wiring damage should be assessed before enclosure.
• A guard reduces access but does not replace routine observation and maintenance.

For your home

A site-specific answer still matters

Solar results and service needs depend on the roof, equipment, shade, household electricity use, utility requirements, and the condition of the existing system. Use this guide as a starting point, then have the property and equipment evaluated before making a major decision.