Quick Answer
Critter guards for solar panel installations typically include wire mesh, netting, or plastic or PVC panels with a mesh pattern to prevent birds and other small animals from roosting or nesting on the panels.
Choosing the Right Material
When selecting a critter guard for your solar panel installation, consider the durability and weather resistance of the material. Wire mesh is a popular choice due to its affordability and effectiveness, but it may not be suitable for coastal areas where corrosion is a concern. In these cases, plastic or PVC panels with a mesh pattern are a better option. Look for materials with a mesh size of 1 inch or smaller to prevent birds and other small animals from passing through.
Installation Techniques
Critter guards can be installed on top of the solar panels or integrated into the mounting system. When installing on top, ensure the guard is securely attached to the panels using screws or clips. For integration into the mounting system, consider using a rack-mounted guard that can be installed at the same time as the solar panels. A 6-8 inch overhang is recommended to prevent critters from landing on the panels. When installing on ground-mounted systems, consider using a sloping roof design to prevent critters from accessing the panels.
Additional Considerations
In addition to choosing the right material and installation technique, consider the size and shape of your solar panel array when selecting a critter guard. Larger arrays may require multiple guards or a custom design to ensure effective protection. Also, consider the local bird species and their nesting habits when selecting a guard. For example, birds of prey may require a guard with a higher mesh size to accommodate their larger size.
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